BLIND
FLANGES
CONTENTS
Overview
Blind Flanges— Manufacturers & Suppliers in India
Manibhadra Metals is a leading manufacturer, supplier, and exporter of premium-quality Blind Flanges (BLRF) in India, offering products that comply with ASME B16.5, ASME B16.47, ANSI, EN 1092-1, DIN, BS, JIS, API, ISO, and MSS standards. Our Blind Flanges are manufactured using Stainless Steel, Carbon Steel, Alloy Steel, Duplex, Super Duplex, Nickel Alloys, Titanium, and other special grades, ensuring excellent strength, corrosion resistance, dimensional accuracy, and long service life for demanding industrial applications.
A Blind Flange (BLRF) is a solid flange without a bore, specifically designed to close the end of a piping system, pressure vessel, or valve opening. Since it has no internal opening, it provides a secure pressure-tight seal, making it ideal for pipeline isolation, hydrostatic testing, maintenance, inspection, and future system expansion. Blind Flanges are widely used in oil & gas, petrochemical, chemical processing, power generation, refineries, water treatment, marine, pharmaceutical, and industrial process piping systems where reliable sealing is essential.
Manibhadra Metals manufactures ASME B16.5 Blind Flanges in Pressure Classes 150, 300, 400, 600, 900, 1500, and 2500, with standard sizes ranging from ½” NB to 24″ NB, while larger diameters are available under ASME B16.47 Series A and Series B. We offer Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) facings to suit a wide range of pressure and temperature requirements. Every Blind Flange is produced under strict quality control, supplied with EN 10204 3.1 / 3.2 material test certification, and manufactured to deliver dependable sealing performance, durability, and full compliance with international standards.
| Quick Specification Reference | |
|---|---|
| Size Range | ½″ (15 NB) to 48″ (1200 NB) • DN10–DN5000 |
| Standards | ASME B16.5, ASME B16.47, ASME B16.48, EN 1092-1, DIN, BS, JIS, API, MSS SP-44, ISO 7005-1, AWWA, GOST & UNI |
| Pressure Ratings | ANSI Class 150, 300, 400, 600, 900, 1500 & 2500 • DIN PN6, PN10, PN16, PN25, PN40 & PN64 • JIS 5K–63K |
| Face Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Tongue & Groove, Male-Female & Lap Joint Face |
| Available Types | Forged Blind Flange, Plate Blind Flange, Paddle Blind, Spectacle Blind, Reducing Blind & Threaded Blind Flange |
| Surface Finish | Black Paint, Anti-rust Paint, Zinc Plated, Yellow Passivation, Cold & Hot Dip Galvanized |
| Manufacturing | Forged, Heat Treated, CNC Machined with Standard & Custom Drawing Designs |
| Testing & Inspection | PMI, Hydrostatic, Ultrasonic (UT), Radiography (RT), Magnetic Particle Inspection (MPI), Spectro Analysis & Dimensional Inspection |
| Certificates | EN 10204 3.1 / 3.2, MTC, NACE MR0103, NACE MR0175, Raw Material Certificate & Third-Party Inspection |
| Manufacturing Equipment | Press, CNC, Bending, Pushing, Bevelling & Sand Blasting Machines |
| Origin | India, Western Europe, Japan, USA & South Korea |
| Applications | Oil & Gas, Petrochemical, Chemical Processing, Refineries, Power Plants, Pressure Vessels, Marine & Water Treatment Industries |
| Export Markets | USA, Canada, UAE, Saudi Arabia, Singapore, Thailand, Brazil, Oman, Egypt, Ireland, Spain and Worldwide |
PRICE TABLE
Blind Flange Reference Price Chart
The prices listed above are indicative and subject to change based on quantity, material grade, and market conditions. For an accurate quotation on Blind Flanges, please contact our sales team directly.
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| Sr. No. | Qty | Description | Price (USD) | Total |
|---|---|---|---|---|
| 1 | 50 | 2" Class 150 RF Blind Flange ASTM A105 | $3.42 | $171.00 |
| 2 | 20 | 2" Class 300 RF Blind Flange ASTM A105 | $6.16 | $123.20 |
| 3 | 20 | 3" Class 300 RF Blind Flange ASTM A105 | $11.11 | $222.20 |
| 4 | 100 | 4" Class 150 RF Blind Flange ASTM A105 | $10.26 | $1,026.00 |
| 5 | 40 | 4" Class 600 RF Blind Flange ASTM A105 | $31.65 | $1,266.00 |
| 6 | 50 | 6" Class 150 RF Blind Flange ASTM A105 | $18.81 | $940.50 |
| 7 | 60 | 6" Class 300 RF Blind Flange ASTM A105 | $30.79 | $1,847.40 |
| 8 | 36 | 8" Class 300 RF Blind Flange ASTM A105 | $48.80 | $1,756.80 |
| 9 | 240 | 16" Class 150 RF Blind Flange ASTM A105 | $95.40 | $22,896.00 |
SPECIFICATION TABLE
ASME B16.5 Blind Flange Specifications Chart
Explore the complete specifications of Blind Flanges (BLRF) manufactured by Manibhadra Metals, including size range, pressure ratings, international standards, face types, surface coatings, manufacturing process, testing, certifications, and available configurations. Our Blind Flanges are produced in accordance with ASME, ANSI, DIN, EN, BS, JIS, API, MSS, and other global standards to ensure reliable sealing performance in high-pressure and high-temperature piping systems.
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| Blind Flange Raised Face Specification Reference | |
|---|---|
| Size Range | ½″ (15 NB) to 48″ (1200 NB) • DN10–DN5000 |
| Manufacturing Standards | ASME B16.5, ASME B16.47 Series A & B, ASME B16.48, EN 1092-1, DIN, BS 4504, BS 10, JIS B2220, API 605, MSS SP-44, ISO 7005-1, GOST, UNI & AWWA |
| Pressure Ratings | ANSI Class 150, 300, 600, 900, 1500 & 2500 • DIN PN6, PN10, PN16, PN25, PN40 & PN64 • JIS 5K, 10K, 16K, 20K, 30K, 40K & 63K |
| Face Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Large Male-Female (LMF), Small Male-Female (SMF), Lap Joint Face (LJF), Tongue & Groove |
| Available Types | Forged Blind Flange, Plate Blind Flange, Threaded Blind Flange, Paddle Blind, Spectacle Blind & Reducing Blind Flange |
| Surface Finish | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Passivation, Cold Galvanized & Hot Dip Galvanized |
| Manufacturing Process | Forged, Heat Treated, Precision CNC Machined & Custom Designed as per Drawings |
| Configuration | Standard, Equal, Reducing & Custom Configurations |
| Testing & Inspection | PMI, Hydrostatic Testing, Ultrasonic Testing (UT), Radiography Testing (RT), Magnetic Particle Inspection (MPI), Spectro Analysis & Dimensional Inspection |
| Certificates | EN 10204 3.1 / 3.2, Material Test Certificate (MTC), Raw Material Certificate, NACE MR0103, NACE MR0175 & Third-Party Inspection |
| Manufacturing Equipment | Press Machines, CNC Machines, Bending Machines, Pushing Machines, Electric Bevelling Machines & Sand Blasting Equipment |
| Available Standards | ANSI, ASME, DIN, EN, BS, JIS, API, MSS, UNI, GOST, AWWA, KS, SABS, NFE & AS 2129 |
| Common DIN / BS Standards | DIN 2527, 2566, 2573, 2576, 2627–2638, 2641, 2642, 2655, 2656 • BS 4504, BS 3293, BS 1560 & BS 10 |
| Applications | Oil & Gas, Petrochemical Plants, Chemical Processing, Heavy Oil Refineries, Bitumen Upgraders, Nuclear Power, Pressure Vessels, Marine & Industrial Piping Systems |
| Export Markets | USA, Canada, UAE, Saudi Arabia, Oman, Singapore, Thailand, South Korea, Spain, Brazil, Ireland, Egypt, Indonesia, Peru & Worldwide |
| Manufacturer | Manibhadra Metals – Manufacturer, Supplier, Stockist & Exporter of ASME B16.5 Blind Flanges in Mumbai, India |
Materials
ASME B16.5 Blind Flange Material Grades
Manibhadra Metals manufactures Blind Flanges in a wide range of carbon steel, stainless steel, alloy steel, duplex, super duplex, nickel alloys, titanium, copper alloys, and other special materials. Our Blind Flanges are available in ASTM, ASME, DIN, EN, BS, and JIS material grades, ensuring excellent corrosion resistance, mechanical strength, and reliable performance for high-pressure and high-temperature industrial piping applications.
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| Blind Flange Material Grades | |
|---|---|
| Carbon Steel | ASTM A105, A105N, A350 LF2, A694 F52/F56/F60/F65/F70/F80, A216 WCB |
| Stainless Steel | ASTM A182 F304, F304L, F316, F316L, F321, F347, ASTM A351 CF8, CF8M, CF3, CF3M |
| Alloy Steel | ASTM A182 F5, F9, F11, F12, F22 & F91 |
| Duplex Stainless Steel | ASTM A182 F51, F52, F53, F54, F55, F57, F59, F60 & F61 (UNS S31803, S32205) |
| Super Duplex | UNS S32750, S32760, ASTM A182 F53, F55 & F61 |
| Nickel Alloys | Nickel 200, Nickel 201 & Nickel 205 |
| Inconel | Inconel 600, 601, 625, 690, 718 & X-750 |
| Incoloy | Incoloy 800, 800H, 800HT, 825 & 925 |
| Hastelloy | Hastelloy C22, C276, C4, C2000, B2 & B3 |
| Monel | Monel 400 & Monel K500 |
| Titanium | Titanium Grade 1, Grade 2, Grade 5, Grade 7, Grade 9 & Grade 12 |
| Copper & Copper Nickel | C10100, C11000, C12200, Copper Nickel 90/10 (C70600), Copper Nickel 70/30 (C71500) |
| Brass & Bronze | H59, H62, Aluminium Bronze, Tin Bronze & Lead Bronze |
| Special Alloys | Alloy 20, 254 SMO (UNS S31254), Nimonic 75, 80A & 90, Aluminium 5052, 6061, 6063 & 7075 |
PRODUCT VARIANTS AND SPECIFICATIONS
Blind Flange Material Types & Configurations
Manibhadra Metals manufactures and supplies premium-quality Blind Flanges, including ASME B16.5, ASME B16.47 Series A & B, ANSI Flat Face, EN 1092, PN16, Class 150, Class 300, Forged, and MSS SP-44 Blind Flanges in carbon steel, stainless steel, alloy steel, and special materials.
ASME B16.5 Blind Flange — A105 · 2″ · Class 150 RF
150 LB, 2″ Raised Face Carbon Steel Blind Flange manufactured to ASME B16.5 standards. Designed for securely sealing pipeline ends and supplied with EN 10204 3.1 Material Test Certificate (MTC).
ASME B16.5 BLRF Flange — SS316 · 18″ · RF
18″ Stainless Steel Blind Raised Face (BLRF) Flange manufactured to ASME B16.5 standards. Ideal for high-pressure piping systems and supplied with EN 10204 3.1 Material Test Certificate (MTC).
ANSI B16.5 Flat Face Blind Flange — SS304 · FF
Stainless Steel Flat Face (FF) Blind Flange manufactured to ANSI B16.5 standards. Suitable for low-pressure piping systems and supplied with EN 10204 3.1 Material Test Certificate (MTC).
ASME B16.47 Series A Blind Flange — 18″ · Class 600 RTJ
18″ Class 600 Ring Type Joint (RTJ) Blind Flange manufactured to ASME B16.47 Series A standards. Designed for large-diameter, high-pressure pipeline applications.
ASME B16.47 Series B Blind Flange — ASTM A350 · DN100 · PN50 RF
DN100 Raised Face Blind Flange manufactured from ASTM A350 material to ASME B16.47 Series B standards. Suitable for low-temperature and critical industrial services.
Class 150 Blind Flange — A105N · 2″ · RF
2″ Class 150 Raised Face Blind Flange manufactured from ASTM A105N forged carbon steel. Produced to ASME B16.5 standards with EN 10204 3.1 Material Test Certificate (MTC).
Class 300 Blind Flange — A105 · 8″ · RF
8″ Class 300 Raised Face Blind Flange manufactured from ASTM A105 forged carbon steel. Designed for medium-pressure piping systems and industrial process applications.
EN 1092 Blind Flange — A105 · 12″ · PN16
12″ EN 1092 Blind Flange manufactured from ASTM A105 forged steel. Suitable for European standard piping systems requiring reliable pressure-tight sealing.
PN16 Blind Flange — A105 · 4″ · RF
4″ PN16 Raised Face Blind Flange manufactured from ASTM A105 carbon steel. Designed for secure end closure in water, chemical, and industrial piping systems.
Forged Blind Flange — A105 · 2″
2″ Forged Blind Flange manufactured from ASTM A105 carbon steel for superior mechanical strength, durability, and leak-proof pipeline isolation.
AWWA C207 Blind Flange — A105N · 10″ · Class 600 RF
10″ Raised Face Blind Flange manufactured to AWWA C207 standards using ASTM A105N forged carbon steel. Suitable for municipal and water transmission systems.
MSS SP-44 Blind Flange — A105 · 6″ · 600 LB RF
6″ Class 600 Raised Face Blind Flange manufactured to MSS SP-44 standards from ASTM A105 forged carbon steel. Designed for high-pressure oil & gas and process piping applications.
DIMENSIONS TABLE
ASME B16.5 Blind Flange Dimensions
The following dimension tables provide the standard sizes, outside diameters, flange thicknesses, bolt circle diameters, bolt hole sizes, number of bolt holes, and approximate weights for ASME B16.5 Raised Face (RF) Blind Flanges in Class 150, 300, 600, 1500, and 2500 pressure ratings. These dimensional charts serve as a reliable reference for piping design, flange selection, fabrication, procurement, and installation across oil & gas, petrochemical, power generation, water treatment, and industrial process piping systems.
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DIMENSIONS TABLE
ASME B16.5 Class 150 Blind Flange Dimensions
The table below provides the standard dimensions for ASME B16.5 Class 150 Blind Flanges, including outside diameter (OD), flange thickness, raised face diameter (RF), bolt circle diameter (BCD), bolt hole size, number of bolt holes, and approximate weight. These dimensions are suitable for low-pressure industrial piping systems.
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| ASME B16.5 Class 150 Blind Flange Dimensions) | |||||||
|---|---|---|---|---|---|---|---|
| Nominal Pipe Size | "A" (O.D.) |
"B" (Thickness) |
"C" (RF Dia.) |
"D" (B.C.D.) |
No. of Bolt Holes | Bolt Hole Dia. | Approx. Weight (lbs) |
| 1/2" | 3-1/2 | 7/16 | 1-3/8 | 2-3/8 | 4 | 5/8 | 2 |
| 3/4" | 3-7/8 | 1/2 | 1-11/16 | 2-3/4 | 4 | 5/8 | 2 |
| 1" | 4-1/4 | 9/16 | 2 | 3-1/8 | 4 | 5/8 | 2 |
| 1-1/4" | 4-5/8 | 5/8 | 2-1/2 | 3-1/2 | 4 | 5/8 | 3 |
| 1-1/2" | 5 | 11/16 | 2-7/8 | 3-7/8 | 4 | 5/8 | 3 |
| 2" | 6 | 3/4 | 3-5/8 | 4-3/4 | 4 | 3/4 | 4 |
| 2-1/2" | 7 | 7/8 | 4-1/8 | 5-1/2 | 4 | 3/4 | 7 |
| 3" | 7-1/2 | 15/16 | 5 | 6 | 4 | 3/4 | 9 |
| 3-1/2" | 8-1/2 | 15/16 | 5-1/2 | 7 | 8 | 3/4 | 13 |
| 4" | 9 | 15/16 | 6-3/16 | 7-1/2 | 8 | 3/4 | 17 |
| 5" | 10 | 15/16 | 7-5/16 | 8-1/2 | 8 | 7/8 | 20 |
| 6" | 11 | 1 | 8-1/2 | 9-1/2 | 8 | 7/8 | 27 |
| 8" | 13-1/2 | 1-1/8 | 10-5/8 | 11-3/4 | 8 | 7/8 | 47 |
| 10" | 16 | 1-3/16 | 12-3/4 | 14-1/4 | 12 | 1 | 67 |
| 12" | 19 | 1-1/4 | 15 | 17 | 12 | 1 | 123 |
| 14" | 21 | 1-3/8 | 16-1/4 | 18-3/4 | 12 | 1-1/8 | 139 |
| 16" | 23-1/2 | 1-7/16 | 18-1/2 | 21-1/4 | 16 | 1-1/8 | 187 |
| 18" | 25 | 1-9/16 | 21 | 22-3/4 | 16 | 1-1/4 | 217 |
| 20" | 27-1/2 | 1-11/16 | 23 | 25 | 20 | 1-1/4 | 283 |
| 24" | 32 | 1-7/8 | 27-1/4 | 29-1/2 | 20 | 1-3/8 | 415 |
DIMENSIONS TABLE
ASME B16.5 Class 300 Blind Flange Dimensions
The following table lists the standard dimensions for ASME B16.5 Class 300 Blind Flanges, including outside diameter, flange thickness, raised face diameter, bolt circle diameter, bolt hole diameter, bolt quantity, and approximate weight for medium-pressure piping applications.
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| ASME B16.5 Class 300 Blind Flange Dimensions | |||||||
|---|---|---|---|---|---|---|---|
| Nominal Pipe Size | "A" (O.D.) |
"B" (Thickness) |
"C" (RF Dia.) |
"D" (B.C.D.) |
No. of Bolt Holes | Bolt Hole Dia. | Approx. Weight (lbs) |
| 1/2" | 3-3/4 | 9/16 | 1-3/8 | 2-5/8 | 4 | 5/8 | 2 |
| 3/4" | 4-5/8 | 5/8 | 1-11/16 | 3-1/4 | 4 | 3/4 | 3 |
| 1" | 4-7/8 | 11/16 | 2 | 3-1/2 | 4 | 3/4 | 4 |
| 1-1/4" | 5-1/4 | 3/4 | 2-1/2 | 3-7/8 | 4 | 3/4 | 6 |
| 1-1/2" | 6-1/8 | 13/16 | 2-7/8 | 4-1/2 | 4 | 7/8 | 7 |
| 2" | 6-1/2 | 7/8 | 3-5/8 | 5 | 8 | 3/4 | 8 |
| 2-1/2" | 7-1/2 | 1 | 4-1/8 | 5-7/8 | 8 | 7/8 | 12 |
| 3" | 8-1/4 | 1-1/8 | 5 | 6-5/8 | 8 | 7/8 | 16 |
| 3-1/2" | 9 | 1-3/16 | 5-1/2 | 7-1/4 | 8 | 7/8 | 21 |
| 4" | 10 | 1-1/4 | 6-3/16 | 7-7/8 | 8 | 7/8 | 28 |
| 5" | 11 | 1-3/8 | 7-5/16 | 9-1/4 | 8 | 7/8 | 37 |
| 6" | 12-1/2 | 1-7/16 | 8-1/2 | 10-5/8 | 12 | 7/8 | 48 |
| 8" | 15 | 1-5/8 | 10-5/8 | 13 | 12 | 1 | 79 |
| 10" | 17-1/2 | 1-7/8 | 12-3/4 | 15-1/4 | 16 | 1-1/8 | 122 |
| 12" | 20-1/2 | 2 | 15 | 17-3/4 | 16 | 1-1/4 | 183 |
| 14" | 23 | 2-1/8 | 16-1/4 | 20-1/4 | 20 | 1-1/4 | 241 |
| 16" | 25-1/2 | 2-1/4 | 18-1/2 | 22-1/2 | 20 | 1-3/8 | 315 |
| 18" | 28 | 2-3/8 | 21 | 24-3/4 | 24 | 1-3/8 | 414 |
| 20" | 30-1/2 | 2-1/2 | 23 | 27 | 24 | 1-3/8 | 515 |
| 24" | 36 | 2-3/4 | 27-1/4 | 32 | 24 | 1-5/8 | 800 |
DIMENSIONS TABLE
ASME B16.5 Class 600 Blind Flange Dimensions
The table below contains the standard dimensions for ASME B16.5 Class 600 Raised Face (RF) Blind Flanges, including outside diameter (D), flange thickness (b), raised face diameter (g), bolt circle diameter (k), bolt hole size, number of bolt holes, and approximate weight in kilograms for high-pressure industrial service.
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| ASME B16.5 Class 600 Blind Flange Dimensions | |||||||
|---|---|---|---|---|---|---|---|
| Nominal Pipe Size | D (Outside Diameter) |
b (Thickness) |
g (Raised Face Dia.) |
k (Bolt Circle Dia.) |
No. of Bolt Holes | l (Bolt Hole Dia.) |
Approx. Weight (kg) |
| 1/2" | 95.2 | 14.3 | 34.9 | 66.7 | 4 | 15.9 | 0.700 |
| 3/4" | 117.5 | 15.9 | 42.9 | 82.5 | 4 | 19.0 | 1.200 |
| 1" | 123.8 | 17.5 | 50.8 | 88.9 | 4 | 19.0 | 1.500 |
| 1-1/4" | 133.3 | 20.6 | 63.5 | 98.4 | 4 | 19.0 | 2.000 |
| 1-1/2" | 155.6 | 22.2 | 73.0 | 114.3 | 4 | 22.2 | 3.200 |
| 2" | 165.1 | 25.4 | 92.1 | 127.0 | 8 | 19.0 | 4.300 |
| 2-1/2" | 190.5 | 28.6 | 104.8 | 149.2 | 8 | 22.2 | 6.000 |
| 3" | 209.5 | 31.7 | 127.0 | 168.3 | 8 | 22.2 | 8.000 |
| 3-1/2" | 228.6 | 34.9 | 139.7 | 184.1 | 8 | 25.4 | 10.500 |
| 4" | 273.0 | 38.1 | 157.2 | 215.9 | 8 | 25.4 | 18.000 |
| 5" | 330.2 | 44.4 | 185.7 | 266.7 | 8 | 28.6 | 28.500 |
| 6" | 355.6 | 47.6 | 215.9 | 292.1 | 12 | 28.6 | 35.500 |
| 8" | 419.1 | 55.6 | 269.9 | 349.2 | 12 | 31.7 | 58.000 |
| 10" | 508.0 | 63.5 | 323.8 | 431.8 | 16 | 34.9 | 98.000 |
| 12" | 558.8 | 66.7 | 381.0 | 488.9 | 20 | 34.9 | 125.000 |
| 14" | 603.2 | 69.8 | 412.7 | 527.0 | 20 | 38.1 | 151.000 |
| 16" | 685.8 | 76.2 | 469.9 | 603.2 | 20 | 41.3 | 215.000 |
| 18" | 742.9 | 82.5 | 533.4 | 654.0 | 20 | 44.4 | 287.000 |
| 20" | 812.8 | 88.9 | 584.2 | 723.9 | 24 | 44.4 | 366.000 |
| 22" | 869.9 | 95.2 | 641.2 | 777.9 | 24 | 47.6 | 437.000 |
| 24" | 939.8 | 101.6 | 692.1 | 838.2 | 24 | 50.8 | 532.000 |
DIMENSIONS TABLE
ASME B16.5 Class 1500 Blind Flange Dimensions
The following dimensional chart provides the standard specifications for ASME / ANSI B16.5 Class 1500 Raised Face (RF) Blind Flanges, including outside diameter, minimum flange thickness, hub diameter, bolt circle diameter, bolt hole diameter, bolt size, number of bolts, and approximate weight. These flanges are designed for demanding high-pressure and high-temperature piping systems.
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| ASME B16.5 Class 1500 Blind Flange Dimensions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Pipe Size | DN | O.D. Flange (O) | Min. Thickness (C) | Hub Dia. (X) | Bolt Circle (BC) | Bolt Hole Dia. (BH) | No. of Bolts (BN) | Bolt Size (BD) | Weight (kg) | Weight (lb) |
| 1/2" | 15 | 120.7 | 22.4 | 38.1 | 82.6 | 22.4 | 4 | 3/4" | 1.9 | 4.2 |
| 3/4" | 20 | 130.0 | 25.4 | 44.5 | 88.9 | 22.4 | 4 | 3/4" | 2.7 | 6.0 |
| 1" | 25 | 149.4 | 28.4 | 52.3 | 101.6 | 25.4 | 4 | 7/8" | 3.7 | 8.1 |
| 1-1/4" | 32 | 158.8 | 28.4 | 63.5 | 111.3 | 25.4 | 4 | 7/8" | 4.3 | 9.5 |
| 1-1/2" | 40 | 177.8 | 31.8 | 69.9 | 124.0 | 28.4 | 4 | 1" | 5.9 | 13.0 |
| 2" | 50 | 215.9 | 38.1 | 104.6 | 165.1 | 25.4 | 8 | 7/8" | 11.3 | 24.9 |
| 2-1/2" | 65 | 244.3 | 41.1 | 124.0 | 190.5 | 28.4 | 8 | 1" | 16.0 | 35.2 |
| 3" | 80 | 266.7 | 47.8 | 133.4 | 190.5 | 25.4 | 8 | 7/8" | 19.5 | 43.0 |
| 4" | 100 | 311.2 | 53.8 | 162.1 | 235.0 | 31.8 | 8 | 1-1/8" | 33.0 | 72.8 |
| 5" | 125 | 374.7 | 73.2 | 196.9 | 279.4 | 35.1 | 8 | 1-1/4" | 60.0 | 132.0 |
| 6" | 150 | 393.7 | 82.6 | 228.6 | 317.5 | 31.8 | 12 | 1-1/8" | 75.0 | 165.0 |
| 8" | 200 | 482.6 | 91.9 | 292.1 | 393.7 | 38.1 | 12 | 1-3/8" | 125.0 | 275.0 |
| 10" | 250 | 584.2 | 108.0 | 368.3 | 469.9 | 38.1 | 16 | 1-3/8" | 215.0 | 474.0 |
| 12" | 300 | 673.1 | 124.0 | 450.9 | 533.4 | 38.1 | 20 | 1-3/8" | 316.0 | 697.0 |
| 14" | 350 | 749.3 | 133.4 | 495.3 | 558.8 | 41.1 | 20 | 1-1/2" | — | — |
| 16" | 400 | 825.5 | 146.1 | 552.5 | 616.0 | 44.5 | 20 | 1-5/8" | — | — |
| 18" | 450 | 914.4 | 162.1 | 596.9 | 685.8 | 50.8 | 20 | 1-7/8" | — | — |
| 20" | 500 | 984.3 | 177.8 | 641.4 | 749.3 | 53.8 | 20 | 2" | — | — |
| 24" | 600 | 1168.4 | 203.2 | 762.0 | 901.7 | 66.5 | 20 | 2-1/2" | — | — |
DIMENSIONS TABLE
ASME B16.5 Class 2500 Blind Flange Dimensions
The table below provides the standard dimensions for ASME / ANSI B16.5 Class 2500 Raised Face (RF) Blind Flanges, including outside diameter, minimum flange thickness, bolt circle diameter, bolt hole diameter, bolt size, number of bolts, and approximate weight. These dimensions are intended for ultra-high-pressure applications in refineries, offshore platforms, petrochemical plants, and critical process industries.
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| ASME B16.5 Class 2500 Blind Flange Dimensions | ||||||||
|---|---|---|---|---|---|---|---|---|
| Nominal Pipe Size | DN | O.D. Flange (O) | Min. Thickness (C) | Bolt Circle (BC) | Bolt Hole Dia. (BH) | No. of Bolts (BN) | Bolt Size (BD) | Approx. Weight |
| 1/2" | 15 | 133.4 | 30.2 | 88.9 | 22.4 | 4 | 3/4" | 3 kg / 7 lb |
| 3/4" | 20 | 139.7 | 31.8 | 95.3 | 22.4 | 4 | 3/4" | 4.5 kg / 10 lb |
| 1" | 25 | 158.8 | 35.1 | 108.0 | 25.4 | 4 | 7/8" | 5 kg / 12 lb |
| 1-1/4" | 32 | 184.2 | 38.1 | 130.0 | 28.4 | 4 | 1" | 8 kg / 18 lb |
| 1-1/2" | 40 | 203.2 | 44.5 | 146.1 | 31.8 | 4 | 1-1/8" | 11 kg / 25 lb |
| 2" | 50 | 235.0 | 50.8 | 171.5 | 28.4 | 8 | 1" | 17 kg / 38 lb |
| 2-1/2" | 65 | 266.7 | 57.2 | 196.9 | 31.8 | 8 | 1-1/8" | 25 kg / 55 lb |
| 3" | 80 | 304.8 | 66.5 | 228.6 | 35.1 | 8 | 1-1/4" | 39 kg / 86 lb |
| 4" | 100 | 355.6 | 76.2 | 273.1 | 41.1 | 8 | 1-1/2" | 60 kg / 133 lb |
| 5" | 125 | 419.1 | 91.9 | 323.9 | 47.8 | 8 | 1-3/4" | 101 kg / 223 lb |
| 6" | 150 | 482.6 | 108.0 | 368.3 | 53.8 | 8 | 2" | 156 kg / 345 lb |
| 8" | 200 | 552.5 | 127.0 | 438.2 | 53.8 | 12 | 2" | 242 kg / 533 lb |
| 10" | 250 | 673.1 | 165.1 | 539.8 | 66.5 | 12 | 2-1/2" | 465 kg / 1023 lb |
| 12" | 300 | 762.0 | 184.2 | 619.3 | 73.2 | 12 | 2-3/4" | 665 kg / 1463 lb |
DIMENSIONS TABLE
JIS Blind Flange Dimensions
The tables below provide the standard dimensions for JIS Blind Flanges in JIS 5K, JIS 10K, and JIS 16K pressure ratings. Each dimensional chart includes pipe size, outside diameter (D), bore (Bo), flange thickness (t), gasket seating dimensions (G), bolt circle diameter, bolt hole size, number of bolt holes, and other critical measurements in accordance with Japanese Industrial Standards (JIS). These tables serve as a comprehensive reference for piping design, flange selection, fabrication, procurement, and installation across industrial piping systems.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
DIMENSIONS TABLE
JIS 5K Blind Flange Dimensions
Browse the standard dimensions of JIS 5K Blind Flanges, including pipe size, flange outside diameter (D), bore (Bo), thickness (t), gasket seating dimensions (G), bolt circle (H), bolt hole diameter, number of bolt holes, and other critical measurements in accordance with JIS 5K standards. This dimensional chart serves as a reliable reference for flange selection, engineering design, fabrication, and piping system installation.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| JIS 5K Blind Flange Dimensions | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe | Pipe | Bo | D | t | T | G | f | r | H | X | C | Holes | Bolt Dia. | |||||||||
| inch | mm | |||||||||||||||||||||
|
3/8 |
10 |
17.3 |
17.8 |
+0.5 |
75 |
+1.0 |
9 |
+1.0 |
±1.0 |
42 |
±0.8 |
1 |
+2.0 |
+2.0 |
55 |
±0.5 |
4 |
12 |
||||
|
1/2 |
15 |
21.7 |
22.2 |
80 |
9 |
48 |
1 |
60 |
4 |
12 |
||||||||||||
|
3/4 |
20 |
27.2 |
27.7 |
85 |
10 |
52 |
1 |
65 |
4 |
12 |
||||||||||||
|
1 |
25 |
34.0 |
34.5 |
95 |
10 |
62 |
1 |
75 |
4 |
12 |
||||||||||||
|
1-1/4 |
32 |
42.7 |
43.2 |
115 |
12 |
72 |
2 |
90 |
4 |
15 |
||||||||||||
|
1-1/2 |
40 |
48.6 |
49.1 |
120 |
12 |
78 |
2 |
95 |
4 |
15 |
||||||||||||
|
2 |
50 |
60.5 |
61.1 |
130 |
14 |
88 |
2 |
105 |
4 |
15 |
||||||||||||
|
2-1/2 |
65 |
76.3 |
77.1 |
155 |
14 |
112 |
2 |
130 |
4 |
15 |
||||||||||||
|
3 |
80 |
89.1 |
90.0 |
180 |
14 |
125 |
2 |
145 |
4 |
19 |
||||||||||||
|
3-1/2 |
90 |
101.6 |
102.6 |
+1.0 |
190 |
14 |
135 |
2 |
155 |
4 |
19 |
|||||||||||
|
4 |
100 |
114.3 |
115.4 |
200 |
16 |
145 |
2 |
165 |
8 |
19 |
||||||||||||
|
5 |
125 |
139.8 |
141.2 |
235 |
16 |
180 |
2 |
200 |
8 |
19 |
||||||||||||
|
6 |
150 |
165.2 |
166.6 |
265 |
18 |
210 |
2 |
230 |
8 |
19 |
||||||||||||
|
7 |
175 |
190.7 |
192.1 |
300 |
18 |
235 |
±0.9 |
2 |
260 |
±0.6 |
8 |
23 |
||||||||||
|
8 |
200 |
216.3 |
218.0 |
320 |
+1.5 |
20 |
255 |
2 |
280 |
8 |
23 |
|||||||||||
|
9 |
225 |
241.8 |
243.7 |
345 |
20 |
280 |
2 |
305 |
12 |
23 |
||||||||||||
|
10 |
250 |
267.4 |
269.5 |
385 |
22 |
+1.5 |
32 |
320 |
2 |
5 |
286 |
290 |
345 |
12 |
23 |
|||||||
|
12 |
300 |
318.5 |
321.0 |
430 |
22 |
34 |
365 |
3 |
5 |
338 |
342 |
390 |
12 |
23 |
||||||||
|
14 |
350 |
355.6 |
358.1 |
480 |
24 |
36 |
405 |
3 |
5 |
378 |
382 |
435 |
12 |
25 |
||||||||
|
16 |
400 |
406.4 |
409.0 |
+1.5 |
540 |
24 |
36 |
465 |
3 |
5 |
432 |
436 |
495 |
16 |
25 |
|||||||
|
18 |
450 |
457.2 |
460.0 |
605 |
+2.0 |
24 |
40 |
525 |
3 |
5 |
495 |
500 |
555 |
±0.8 |
16 |
25 |
||||||
|
20 |
500 |
508.0 |
511.0 |
655 |
24 |
40 |
575 |
3 |
5 |
546 |
552 |
605 |
20 |
25 |
||||||||
|
22 |
550 |
558.8 |
562.0 |
720 |
26 |
42 |
630 |
3 |
5 |
597 |
603 |
665 |
20 |
27 |
||||||||
|
24 |
600 |
609.6 |
613.0 |
+2.0 |
770 |
26 |
44 |
680 |
±1.0 |
3 |
5 |
648 |
654 |
+2.5 |
715 |
20 |
27 |
|||||
|
26 |
650 |
660.4 |
664.0 |
825 |
26 |
48 |
735 |
3 |
5 |
702 |
+2.5 |
708 |
770 |
24 |
27 |
|||||||
|
28 |
700 |
711.2 |
715.0 |
875 |
26 |
48 |
785 |
3 |
5 |
751 |
758 |
820 |
24 |
27 |
||||||||
|
30 |
750 |
762.0 |
766.0 |
945 |
28 |
52 |
±1.5 |
840 |
3 |
5 |
802 |
810 |
880 |
24 |
33 |
|||||||
|
32 |
800 |
812.8 |
817.0 |
+2.5 |
995 |
28 |
52 |
890 |
3 |
5 |
854 |
+3.0 |
862 |
+3.0 |
930 |
24 |
33 |
|||||
|
34 |
850 |
863.6 |
868.0 |
1045 |
+2.5 |
28 |
54 |
940 |
3 |
5 |
904 |
912 |
980 |
±1.0 |
24 |
33 |
||||||
|
36 |
900 |
914.4 |
919.0 |
1095 |
30 |
56 |
990 |
3 |
5 |
956 |
964 |
1030 |
24 |
33 |
||||||||
|
40 |
1000 |
1016.0 |
1021.0 |
+3.0 |
1195 |
32 |
60 |
1090 |
±1.2 |
3 |
5 |
1058 |
+3.5 |
1066 |
+3.5 |
1130 |
28 |
33 |
||||
|
44 |
1100 |
1117.6 |
1123.0 |
1305 |
32 |
1200 |
3 |
1240 |
28 |
33 |
||||||||||||
|
48 |
1200 |
1219.2 |
1224.0 |
1420 |
34 |
1305 |
3 |
1350 |
32 |
33 |
||||||||||||
|
54 |
1350 |
1371.6 |
1377.0 |
1575 |
+3.0 |
34 |
1460 |
3 |
1505 |
±1.5 |
32 |
33 |
||||||||||
|
60 |
1500 |
1524.0 |
1529.0 |
1730 |
36 |
1615 |
3 |
1660 |
36 |
33 |
||||||||||||
DIMENSIONS TABLE
JIS 10K Blind Flange Dimensions
Browse the standard dimensions of JIS 10K Blind Flanges, including pipe size, flange outside diameter (D), bore (Bo), thickness (t), gasket seating dimensions (G), bolt circle (H), bolt hole diameter, number of bolt holes, and other critical measurements in accordance with JIS 10K standards. This dimensional chart serves as a reliable reference for flange selection, engineering design, fabrication, and piping system installation.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| JIS 10K Blind Flange Dimensions | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe | Pipe | Bo | D | t | T | G | f | r | H | X | C | Holes | Bolt Dia. | |||||||||
| inch | mm | |||||||||||||||||||||
|
3/8 |
10 |
17.3 |
17.8 |
+0.5 |
90 |
+1.0 |
12 |
+1.0 |
±1.0 |
48 |
±0.8 |
1 |
+1.5 |
+1.5 |
65 |
±0.5 |
4 |
15 |
||||
|
1/2 |
15 |
21.7 |
22.2 |
95 |
12 |
52 |
1 |
70 |
4 |
15 |
||||||||||||
|
3/4 |
20 |
27.2 |
27.7 |
100 |
14 |
58 |
1 |
75 |
4 |
15 |
||||||||||||
|
1 |
25 |
34.0 |
34.5 |
125 |
14 |
70 |
1 |
90 |
4 |
19 |
||||||||||||
|
1-1/4 |
32 |
42.7 |
43.2 |
135 |
16 |
80 |
2 |
100 |
4 |
19 |
||||||||||||
|
1-1/2 |
40 |
48.6 |
49.1 |
140 |
16 |
85 |
2 |
105 |
4 |
19 |
||||||||||||
|
2 |
50 |
60.5 |
61.1 |
155 |
16 |
100 |
2 |
120 |
4 |
19 |
||||||||||||
|
2-1/2 |
65 |
76.3 |
77.1 |
175 |
18 |
120 |
2 |
140 |
4 |
19 |
||||||||||||
|
3 |
80 |
89.1 |
90.0 |
185 |
18 |
130 |
2 |
150 |
8 |
19 |
||||||||||||
|
3-1/2 |
90 |
101.6 |
102.6 |
+1.0 |
195 |
18 |
140 |
2 |
160 |
8 |
19 |
|||||||||||
|
4 |
100 |
114.3 |
115.4 |
210 |
18 |
155 |
2 |
175 |
8 |
19 |
||||||||||||
|
5 |
125 |
139.8 |
141.2 |
250 |
20 |
185 |
2 |
210 |
8 |
23 |
||||||||||||
|
6 |
150 |
165.2 |
166.6 |
280 |
22 |
+1.5 |
215 |
2 |
240 |
8 |
23 |
|||||||||||
|
7 |
175 |
190.7 |
192.1 |
305 |
+1.5 |
22 |
32 |
240 |
±0.9 |
2 |
6 |
208 |
212 |
265 |
±0.6 |
12 |
23 |
|||||
|
8 |
200 |
216.3 |
218.0 |
330 |
22 |
32 |
265 |
2 |
6 |
234 |
238 |
290 |
12 |
23 |
||||||||
|
9 |
225 |
241.8 |
243.7 |
350 |
22 |
34 |
285 |
2 |
6 |
260 |
264 |
310 |
12 |
23 |
||||||||
|
10 |
250 |
267.4 |
269.5 |
400 |
24 |
36 |
325 |
2 |
6 |
288 |
292 |
355 |
12 |
25 |
||||||||
|
12 |
300 |
318.5 |
321.0 |
445 |
24 |
38 |
370 |
3 |
6 |
340 |
346 |
400 |
16 |
25 |
||||||||
|
14 |
350 |
355.6 |
358.1 |
490 |
26 |
42 |
415 |
3 |
6 |
380 |
386 |
445 |
16 |
25 |
||||||||
|
16 |
400 |
406.4 |
409.0 |
+1.5 |
560 |
28 |
44 |
475 |
3 |
6 |
436 |
442 |
510 |
16 |
27 |
|||||||
|
18 |
450 |
457.2 |
460.0 |
620 |
+2.0 |
30 |
48 |
530 |
3 |
6 |
496 |
+2.0 |
502 |
+2.0 |
565 |
±0.8 |
20 |
27 |
||||
|
20 |
500 |
508.0 |
511.0 |
675 |
30 |
48 |
585 |
3 |
6 |
548 |
554 |
620 |
20 |
27 |
||||||||
|
22 |
550 |
558.8 |
562.0 |
745 |
32 |
52 |
±1.5 |
640 |
3 |
6 |
604 |
610 |
680 |
20 |
33 |
|||||||
|
24 |
600 |
609.6 |
613.0 |
+2.0 |
795 |
32 |
52 |
690 |
±1.0 |
3 |
6 |
656 |
+2.5 |
662 |
+2.5 |
730 |
24 |
33 |
||||
|
26 |
650 |
660.4 |
664.0 |
845 |
34 |
56 |
740 |
3 |
6 |
706 |
712 |
780 |
24 |
33 |
||||||||
|
28 |
700 |
711.2 |
715.0 |
905 |
34 |
58 |
800 |
3 |
6 |
762 |
770 |
840 |
24 |
33 |
||||||||
|
30 |
750 |
762.0 |
766.0 |
970 |
36 |
62 |
855 |
3 |
6 |
816 |
824 |
900 |
24 |
33 |
||||||||
|
32 |
800 |
812.8 |
817.0 |
+2.5 |
1020 |
+2.5 |
36 |
64 |
905 |
3 |
6 |
868 |
+3.0 |
876 |
+3.0 |
950 |
28 |
33 |
||||
|
34 |
850 |
863.6 |
868.0 |
1070 |
36 |
66 |
955 |
3 |
6 |
920 |
928 |
1000 |
±1.0 |
28 |
33 |
|||||||
|
36 |
900 |
914.4 |
919.0 |
1120 |
38 |
70 |
1005 |
±1.2 |
3 |
6 |
971 |
979 |
1050 |
28 |
33 |
|||||||
|
40 |
1000 |
1016.0 |
1021.0 |
+3.0 |
1235 |
40 |
74 |
1110 |
3 |
6 |
1073 |
+3.5 |
1081 |
+3.5 |
1160 |
28 |
39 |
|||||
|
44 |
1100 |
1117.6 |
1123.0 |
1345 |
42 |
78 |
1220 |
3 |
8 |
1175 |
1185 |
1270 |
28 |
39 |
||||||||
|
48 |
1200 |
1219.2 |
1224.0 |
1465 |
44 |
82 |
1325 |
3 |
8 |
1278 |
1290 |
1380 |
±1.5 |
32 |
39 |
|||||||
|
54 |
1350 |
1371.6 |
1377.0 |
1630 |
+3.0 |
48 |
88 |
1480 |
3 |
8 |
1432 |
1450 |
1540 |
36 |
45 |
|||||||
|
60 |
1500 |
1524.0 |
1529.0 |
1795 |
50 |
90 |
1635 |
3 |
8 |
1585 |
1600 |
1700 |
40 |
45 |
||||||||
DIMENSIONS TABLE
JIS 16K Blind Flange Dimensions
Browse the standard dimensions of JIS 16K Blind Flanges, including pipe size, flange outside diameter (D), bore (Bo), thickness (t), gasket seating dimensions (G), bolt circle (H), bolt hole diameter, number of bolt holes, and other critical measurements in accordance with JIS 16K standards. This dimensional chart serves as a reliable reference for flange selection, engineering design, fabrication, and piping system installation.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| JIS 16K Blind Flange Dimensions | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe | Pipe | Bo | D | t | T | G | f | r | H | X | C | Holes | Bolt Dia. | |||||||||
| inch | mm | |||||||||||||||||||||
|
3/8 |
10 |
17.3 |
17.8 |
+0.5 |
90 |
+1.0 |
12 |
+1.0 |
16 |
±1.0 |
48 |
±0.8 |
1 |
4 |
26 |
+1.0 |
28 |
+1.0 |
65 |
±0.5 |
4 |
15 |
|
1/2 |
15 |
21.7 |
22.2 |
95 |
12 |
16 |
52 |
1 |
4 |
30 |
32 |
70 |
4 |
15 |
||||||||
|
3/4 |
20 |
27.2 |
27.7 |
100 |
14 |
20 |
58 |
1 |
4 |
38 |
42 |
75 |
4 |
15 |
||||||||
|
1 |
25 |
34.0 |
34.5 |
125 |
14 |
20 |
70 |
1 |
4 |
46 |
50 |
90 |
4 |
19 |
||||||||
|
1-1/4 |
32 |
42.7 |
43.2 |
135 |
16 |
22 |
80 |
2 |
5 |
56 |
60 |
100 |
4 |
19 |
||||||||
|
1-1/2 |
40 |
48.6 |
49.1 |
140 |
16 |
24 |
85 |
2 |
5 |
62 |
66 |
105 |
4 |
19 |
||||||||
|
2 |
50 |
60.5 |
61.1 |
155 |
16 |
24 |
100 |
2 |
5 |
76 |
80 |
120 |
8 |
19 |
||||||||
|
2-1/2 |
65 |
76.3 |
77.1 |
175 |
18 |
26 |
120 |
2 |
5 |
94 |
98 |
140 |
8 |
19 |
||||||||
|
3 |
80 |
89.1 |
90.0 |
200 |
20 |
28 |
135 |
2 |
6 |
108 |
112 |
160 |
8 |
23 |
||||||||
|
3-1/2 |
90 |
101.6 |
102.6 |
+1.0 |
210 |
20 |
30 |
145 |
2 |
6 |
120 |
124 |
170 |
8 |
23 |
|||||||
|
4 |
100 |
114.3 |
115.4 |
225 |
22 |
+1.5 |
34 |
160 |
2 |
6 |
134 |
138 |
185 |
8 |
23 |
|||||||
|
5 |
125 |
139.8 |
141.2 |
270 |
22 |
34 |
195 |
2 |
6 |
164 |
170 |
225 |
8 |
25 |
||||||||
|
6 |
150 |
165.2 |
166.6 |
305 |
+1.5 |
24 |
38 |
230 |
±0.9 |
2 |
6 |
196 |
202 |
260 |
±0.6 |
12 |
25 |
|||||
|
7 |
175 |
190.7 |
192.1 |
325 |
26 |
40 |
250 |
2 |
6 |
216 |
222 |
+1.5 |
280 |
12 |
25 |
|||||||
|
8 |
200 |
216.3 |
218.0 |
350 |
26 |
40 |
275 |
2 |
6 |
244 |
+1.5 |
252 |
305 |
12 |
25 |
|||||||
|
9 |
225 |
241.8 |
243.7 |
385 |
26 |
40 |
325 |
2 |
6 |
266 |
272 |
335 |
12 |
27 |
||||||||
|
10 |
250 |
267.4 |
269.5 |
430 |
28 |
44 |
345 |
2 |
6 |
304 |
312 |
380 |
12 |
27 |
||||||||
|
12 |
300 |
318.5 |
321.0 |
480 |
30 |
48 |
395 |
3 |
8 |
354 |
364 |
430 |
16 |
27 |
||||||||
|
14 |
350 |
355.6 |
358.1 |
540 |
34 |
52 |
±1.5 |
440 |
3 |
8 |
398 |
408 |
480 |
16 |
33 |
|||||||
|
16 |
400 |
406.4 |
409.0 |
+1.5 |
605 |
+2.0 |
38 |
60 |
495 |
3 |
10 |
446 |
456 |
+2.0 |
540 |
16 |
33 |
|||||
|
18 |
450 |
457.2 |
460.0 |
675 |
40 |
64 |
560 |
3 |
10 |
504 |
+2.0 |
514 |
605 |
±0.8 |
20 |
33 |
||||||
|
20 |
500 |
508.0 |
511.0 |
730 |
42 |
68 |
615 |
3 |
10 |
558 |
568 |
660 |
20 |
33 |
||||||||
|
22 |
550 |
558.8 |
562.0 |
795 |
44 |
70 |
670 |
±1.0 |
3 |
10 |
612 |
622 |
720 |
20 |
39 |
|||||||
|
24 |
600 |
609.6 |
613.0 |
+2.0 |
845 |
46 |
74 |
720 |
3 |
10 |
666 |
+2.5 |
676 |
+2.5 |
770 |
24 |
39 |
|||||
|
26 |
650 |
660.4 |
664.0 |
895 |
48 |
77 |
770 |
5 |
10 |
704 |
726 |
820 |
24 |
39 |
||||||||
|
28 |
700 |
711.2 |
715.0 |
960 |
50 |
80 |
820 |
5 |
10 |
754 |
776 |
875 |
24 |
42 |
||||||||
|
30 |
750 |
762.0 |
766.0 |
1020 |
+2.5 |
52 |
+2.0 |
83 |
880 |
5 |
10 |
806 |
832 |
935 |
24 |
42 |
||||||
|
32 |
800 |
812.8 |
817.0 |
+2.5 |
1085 |
54 |
86 |
930 |
5 |
10 |
865 |
+3.0 |
885 |
+3.0 |
990 |
±1.0 |
24 |
48 |
||||
|
34 |
850 |
863.6 |
868.0 |
1135 |
56 |
89 |
980 |
5 |
10 |
916 |
936 |
1040 |
24 |
48 |
||||||||
|
36 |
900 |
914.4 |
919.0 |
1185 |
58 |
93 |
1030 |
±1.2 |
5 |
10 |
968 |
986 |
1090 |
28 |
48 |
|||||||
|
40 |
1000 |
1016.0 |
1021.0 |
+3.0 |
1320 |
62 |
99 |
1140 |
5 |
12 |
1070 |
+3.5 |
1098 |
+3.5 |
1210 |
28 |
56 |
|||||
|
44 |
1100 |
1117.6 |
1123.0 |
1420 |
66 |
105 |
±2.0 |
1240 |
5 |
12 |
1180 |
1200 |
1310 |
32 |
56 |
|||||||
|
48 |
1200 |
1219.2 |
1225.0 |
1530 |
+3.0 |
70 |
112 |
1350 |
5 |
12 |
1282 |
1302 |
1420 |
±1.5 |
32 |
56 |
||||||
|
52 |
1300 |
1320.8 |
1326.0 |
1645 |
74 |
1450 |
5 |
1530 |
32 |
62 |
||||||||||||
|
54 |
1350 |
1371.6 |
1377.0 |
1700 |
76 |
1510 |
5 |
1590 |
32 |
62 |
||||||||||||
|
56 |
1400 |
1422.4 |
1428.0 |
1755 |
78 |
1560 |
5 |
1640 |
36 |
62 |
||||||||||||
|
60 |
1500 |
1524.0 |
1529.0 |
1865 |
80 |
1670 |
5 |
1750 |
36 |
62 |
||||||||||||
pressure ratings
ASME B16.5 Blind Flange Pressure Ratings
The table below presents the maximum allowable non-shock working pressure (PSIG) for ASME B16.5 threaded flanges across Pressure Classes 150, 300, 400, 600, 900, 1500, and 2500 at various operating temperatures. It also includes the hydrostatic test pressure values, serving as a quick reference for selecting the appropriate flange pressure rating based on service conditions.
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| Blind Flange Weights by Pressure Class and Size | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size |
150# | 300# | 600# | 900# | 1500# | 2500# | ||||||||||||
| WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | |
| ½″ | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 2 | 2 | See 1500# Weights | 5 | 4 | 4 | 7 | 7 | 7 | ||
| ¾″ | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 3 | 3 | See 1500# Weights | 6 | 5 | 6 | 8 | 8 | 8 | ||
| 1″ | 3 | 2 | 2 | 4 | 3 | 3 | 4 | 4 | 4 | See 1500# Weights | 9 | 8 | 8 | 12 | 11 | 11 | ||
| 1½″ | 4 | 3 | 3 | 7 | 6 | 6 | 8 | 7 | 8 | See 1500# Weights | 13 | 12 | 13 | 25 | 22 | 23 | ||
| 2″ | 6 | 5 | 5 | 9 | 7 | 8 | 12 | 9 | 10 | See 1500# Weights | 25 | 25 | 25 | 42 | 37 | 39 | ||
| 2½″ | 8 | 7 | 7 | 12 | 10 | 12 | 18 | 13 | 15 | See 1500# Weights | 36 | 36 | 35 | 52 | 55 | 56 | ||
| 3″ | 10 | 8 | 9 | 15 | 13 | 16 | 23 | 16 | 20 | 31 | 26 | 29 | 48 | 48 | 48 | 94 | 83 | 86 |
| 4″ | 15 | 13 | 17 | 25 | 22 | 27 | 42 | 37 | 41 | 53 | 53 | 54 | 73 | 73 | 73 | 145 | 125 | 130 |
| 5″ | 19 | 15 | 20 | 32 | 28 | 35 | 68 | 63 | 68 | 86 | 83 | 87 | 130 | 130 | 140 | 245 | 210 | 225 |
| 6″ | 24 | 19 | 26 | 42 | 39 | 50 | 81 | 80 | 86 | 110 | 110 | 115 | 165 | 165 | 160 | 380 | 325 | 345 |
| 8″ | 39 | 30 | 45 | 67 | 58 | 81 | 120 | 115 | 140 | 175 | 170 | 200 | 275 | 260 | 300 | 580 | 485 | 530 |
| 10″ | 52 | 43 | 70 | 91 | 81 | 124 | 190 | 170 | 230 | 260 | 245 | 290 | 455 | 435 | 510 | 1075 | 930 | 1025 |
| 12″ | 80 | 64 | 110 | 140 | 115 | 185 | 225 | 200 | 295 | 325 | 325 | 415 | 690 | 580 | 690 | 1525 | 1100 | 1300 |
| 14″ | 110 | 90 | 140 | 180 | 165 | 250 | 280 | 230 | 355 | 400 | 400 | 520 | 940 | NA | 975 | NA | NA | NA |
| 16″ | 140 | 98 | 180 | 250 | 190 | 295 | 390 | 330 | 495 | 495 | 425 | 600 | 1250 | NA | 1300 | NA | NA | NA |
| 18″ | 150 | 130 | 220 | 320 | 250 | 395 | 475 | 400 | 630 | 680 | 600 | 850 | 1625 | NA | 1750 | NA | NA | NA |
| 20″ | 180 | 165 | 285 | 400 | 315 | 505 | 590 | 510 | 810 | 830 | 730 | 1075 | 2050 | NA | 2225 | NA | NA | NA |
| 22″ | 225 | 185 | 355 | 465 | 370 | 640 | 720 | 590 | 1000 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 24″ | 260 | 220 | 430 | 580 | 475 | 790 | 830 | 730 | 1250 | 1500 | 1400 | 2025 | 3325 | NA | 3625 | NA | NA | NA |
| Engineering Conversion Data | |
|---|---|
| Length Conversion | 1 inch = 25.4 mm | 1 mm = 0.03937 inch |
| Weight Conversion | 1 pound = 0.45359 kg | 1 kg = 2.20462 pounds |
| Pressure Conversion | 1 lb/ft² = 47.88 Pa | 1 Pa = 0.020885 lb/ft² |
| PSI Conversion | 1 psi = 6.8948 kPa | 1 Pa = 0.00014504 psi |
| Temperature Conversion | °C = (°F − 32) × 5/9 | °F = (°C × 9/5) + 32 |
TOLERANCE
Dimensional Tolerances of ASME B16.5 Blind Flanges
The table below outlines the standard dimensional tolerances for ASME B16.5 Blind Flanges, including outside diameter, contact face, drilling, hub dimensions, thickness, and bolt circle tolerances. These values help ensure dimensional accuracy, interchangeability, and compliance with international flange manufacturing standards.
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| Outside Diameter ≤ 24" = ±1.6 mm > 24" = ±3.2 mm | Inside Diameter Not Applicable |
| Diameter of Contact Face 1.6 mm Raised Face = ±0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ±0.4 mm | Outside Diameter of Hub ≤ 12" = +2.4 mm / -1.6 mm ≥ 14" = ±3.2 mm |
| Diameter of Counterbore Not Applicable | Drilling Bolt Circle = ±1.6 mm Bolt Hole Spacing = ±0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½" = 0.8 mm Max. ≥ 3" = 1.6 mm Max. |
| Thickness ≤ 18" = +3.2 mm / -0 mm ≥ 20" = +4.8 mm / -0 mm | Length Through Hub ≤ 18" = +3.2 mm / -0.8 mm ≥ 20" = +4.8 mm / -1.6 mm |
RANGE TABLE
Explore Our Complete Range of Blind Neck Flanges
Explore Our Complete Range of ASME B16.5 Blind Neck Flanges Available in Multiple Materials, Standards, Pressure Ratings, and Industrial Configurations.
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| Category | Available Types / Specifications |
|---|---|
| ASME / ANSI Blind Flanges | ASME B16.5 Blind Flanges, ANSI Blind Flanges, ASME Blind Flanges, B16.5 Blind Flanges, Blind Pipe Flanges |
| Pressure Ratings | Class 150 Blind Flanges, Class 300 Blind Flanges, Class 600 Blind Flanges, Class 900 Blind Flanges, Class 1500 Blind Flanges, 150# Blind Flanges, 24" 300# Blind Flanges, 24" 600# Blind Flanges |
| Raised Face & RTJ | BLRF Flanges, Blind Flange Raised Face, Raised Face Blind Flanges, RTJ Blind Flanges, Ring Joint Blind Flanges, RTJ Blind Flanges Class 1500 |
| EN / DIN / JIS Standards | EN 1092 Blind Flanges, DIN Blind Flanges, JIS Blind Flanges, PN10 Blind Flanges, PN16 Blind Flanges |
| Materials | Stainless Steel Blind Flanges, Carbon Steel Blind Flanges, Alloy Steel Blind Flanges, Aluminium Blind Flanges, Copper Blind Flanges, LF2 Blind Flanges, MS Blind Flanges |
| Special Blind Flanges | NPT Blind Flanges, Blind Flanges with NPT Thread, Blind Flanges with NPT Tap, Forged Blind Flanges, Threaded Blind Flanges, Grooved Blind Flanges, High Hub Blind Flanges |
| Industrial Types | Flat Face Blind Flanges, End Blind Flanges, Pipe Blind Flanges, Valve Blind Flanges, Mechanical Joint Blind Flanges |
| Spectacle & Paddle Types | Paddle Blind Flanges, Spade Blind Flanges, Slip Blind Flanges, Spider Blind Flanges |
| Configurations | Reducing Blind Flanges, Lap Joint Blind Flanges, Hub Blind Flanges, Orifice Blind Flanges, Slip-On Blind Flanges |
| Dimensions & Data | Blind Flange Material, Blind Flange Weight Chart, MS Blind Flange Weight, Gasket For Blind Flanges |
We Maintain Ready Stock Of Stainless Steel, Carbon Steel & Forged Blind Flanges In India
| Category | Available Types / Specifications |
|---|---|
| ASME / ANSI Standards | ASME B16.5 Blind Flanges, ANSI Blind Flanges, Blind Pipe Flanges, ASME Blind Flanges |
| Material Grades | Stainless Steel Blind Flanges, Carbon Steel Blind Flanges, Alloy Steel Blind Flanges, LF2 Blind Flanges, Aluminium Blind Flanges, Copper Blind Flanges, MS Blind Flanges |
| EN / DIN / JIS Standards | EN 1092 Blind Flanges, DIN Blind Flanges, JIS Blind Flanges, PN10 Blind Flanges, PN16 Blind Flanges |
| Raised Face & RTJ | Blind Flange Raised Face, BLRF Flanges, Raised Face Blind Flanges, RTJ Blind Flanges, Ring Joint Blind Flanges |
| Special Configurations | NPT Blind Flanges, Blind Flanges with NPT Thread, Blind Flanges with NPT Tap, Forged Blind Flanges, High Hub Blind Flanges |
| Industrial Applications | Pipe Blind Flanges, End Blind Flanges, Valve Blind Flanges, Mechanical Joint Blind Flanges, Gasket For Blind Flanges |
| Spectacle & Paddle | Paddle Blind Flanges, Spade Blind Flanges, Slip Blind Flanges, Spider Blind Flanges |
| Pressure Classes | Class 150 Blind Flanges, Class 300 Blind Flanges, Class 600 Blind Flanges, Class 900 Blind Flanges, Class 1500 Blind Flanges |
| Sizes & Configurations | 4 Inch Blind Flanges, 24 Inch Blind Flanges, 24" 300# Blind Flanges, 24" 600# Blind Flanges, Orifice Blind Flanges, Reducing Blind Flanges |
| Commercial Information | Blind Flange Material, Blind Flange Weight Chart, BLRF Flange Gasket, Blind Flange Dimensions |
TYPES
Explore Other Types Of Flanges
Discover a complete range of flange designs engineered for different pressure classes, piping systems, and industrial applications.
KNOWLEDGE BASE
Frequently Asked Questions
What is a Blind Flange?
A Blind Flange is a solid flange without a bore that is used to seal or terminate the end of a piping system, pressure vessel, or valve opening. It allows easy access for future inspection, maintenance, or expansion of the pipeline.
What are Blind Flanges used for?
Blind Flanges are commonly used to close the end of pipelines, isolate sections of piping, perform pressure testing, and provide future expansion points in industries such as oil & gas, petrochemical, power plants, water treatment, marine, and chemical processing.
What standards are Blind Flanges manufactured to?
Blind Flanges are manufactured according to international standards including ASME B16.5, ASME B16.47 Series A & B, EN 1092-1, DIN, BS, JIS, API, MSS, and AWWA depending on the application requirements.
What pressure classes are available for Blind Flanges?
Blind Flanges are available in Class 150, 300, 400, 600, 900, 1500, and 2500, as well as PN10, PN16, PN25, PN40, PN64, PN100, and JIS 5K, 10K, 16K, and 20K pressure ratings.
Why choose Manibhadra Metals for Blind Flanges?
Manibhadra Metals manufactures and supplies high-quality Blind Flanges in a wide range of materials, pressure classes, and international standards. Every flange is produced under strict quality control and can be supplied with EN 10204 3.1/3.2 certification, dimensional inspection reports, and worldwide export packaging.
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