Spades
& Ring Spacers
FLANGES
CONTENTS
Overview
Spades & Ring Spacers — Manufacturers & Suppliers in India
Manibhadra Metals is a trusted manufacturer, supplier, stockist, and exporter of ANSI / ASME B16.48 Spades & Ring Spacers in India. We supply Carbon Steel, Stainless Steel, Alloy Steel, Duplex, Super Duplex, Inconel, Monel, Hastelloy, and other special-alloy Paddle Blinds, Paddle Spacers, Spades, and Ring Spacers for industrial piping systems.
A Spade and Ring Spacer is a two-piece pipeline isolation arrangement installed between mating flanges. The solid Spade or Paddle Blind blocks the flow, while the open Ring Spacer allows normal flow. Unlike a Spectacle Blind, both components are separate, making them suitable for large-diameter pipelines and systems requiring occasional isolation.
Our ASME B16.48 Spades & Ring Spacers are available in Class 150, 300, 600, 900, 1500, and 2500, with Raised Face (RF), Ring Type Joint (RTJ), standard, and customized designs. They are widely used in oil & gas, refineries, petrochemical plants, offshore systems, power plants, and industrial piping.
Manibhadra Metals can supply Spades & Ring Spacers with PMI, ultrasonic and dimensional inspection, NACE compliance, EN 10204 3.1/3.2 MTC, and third-party inspection according to project requirements.
| ASME B16.48 Spades & Ring Spacers – Quick Specification Reference | |
|---|---|
| Size Range | ½″ (15 NB) to 48″ (1200 NB) • DN10–DN5000 |
| Standards | ASME B16.48, ASME B16.5, ASME B16.47 Series A & B, EN 1092, DIN, BS, JIS, MSS SP-44, API 605, AWWA C207 & GOST |
| Pressure Ratings | ANSI Class 150, 300, 600, 900, 1500 & 2500 • DIN PN6–PN64 • JIS 5K–63K • EN/UNI 6–40 Bar |
| Available Types | Spades, Paddle Blinds, Paddle Blanks, Ring Spacers and Paddle Spacers |
| Face Types | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Male-Female and Tongue & Groove |
| Manufacturing | Plate or Forged • Heat Treated & Machined • Standard and Custom Drawings |
| Surface Finish | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Passivation, Cold & Hot-Dip Galvanized |
| Testing | PMI, Ultrasonic, X-ray, Magnetic Particle, Spectrographic and Dimensional Inspection |
| Certificates | EN 10204 3.1 / 3.2 MTC, Raw Material Certificate, NACE MR0103, NACE MR0175 and Third-Party Inspection |
| Applications | Oil & Gas, Refineries, Petrochemical Plants, Power Plants, Offshore Systems and Industrial Piping |
Overview
How Spades & Ring Spacers Flanges Work
1
Ring Spacer Allows Normal Flow
During normal pipeline operation, the Ring Spacer or Paddle Spacer is installed between two mating flanges. Its open bore aligns with the pipeline bore, allowing process fluid or gas to flow freely through the piping system.
2
Pipeline Prepared for Isolation
When maintenance, inspection, or shutdown is required, the pipeline section is safely shut down, depressurized, and prepared for isolation. The flange joint is loosened as required so the Ring Spacer can be removed from between the mating flanges.
3
Spade Provides Positive Isolation
The Ring Spacer is replaced with a solid Spade, Paddle Blind, or Paddle Blank. Unlike the open Ring Spacer, the Spade completely blocks the pipeline bore, providing a visible and positive mechanical barrier between the upstream and downstream sections.
4
Ring Spacer Restores Normal Flow
After maintenance is completed, the Spade is removed and the Ring Spacer is reinstalled with the required gaskets. The flange joint is then reassembled and tightened according to the applicable procedure, allowing the pipeline to be safely returned to normal service.
PRICE TABLE
Spades & Ring Spacers 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 Spades & Ring Spacers Flanges, please contact our sales team directly.
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| SR NO | DESCRIPTION | PIPING MATERIAL CLASS | QTY | PRICE (USD$) |
|---|---|---|---|---|
| 1 | RING SPACERS : 4 NPS, CL.150#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A01E | 62 NOS | $75.00 |
| 2 | RING SPACERS : 3 NPS, CL.150#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A01E | 30 NOS | $42.00 |
| 3 | RING SPACERS : 2 NPS, CL.150#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A01E | 12 NOS | $8.00 |
| 4 | RING SPACERS : 1/2 NPS,CL.150#, RF,SMF( Ra=3.2 -6.3μm), NACE MR-0175/ISO 15156, ASTM A516 GR.70 N (FIG.8, ASME B16.48) | A01E | 4 NOS | $7.10 |
| 5 | RING SPACERS : 8 NPS, CL.300#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A03E | 4 NOS | $20.20 |
| 12 | RING SPACERS : 2 NPS, CL.150#, RF, SMF ( Ra=3.2 -6.3μm ),ASTM A 516 GR.60, GALV. TO A153(FIG.8, ASME B16.48) | G01A | 5 NOS | $80.00 |
| 7 | RING SPACERS : 4 NPS, CL.300#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A03E | 9 NOS | $10.00 |
| 8 | RING SPACERS : 2 NPS, CL.300#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A03E | 4 NOS | $30.00 |
| 9 | RING SPACERS : 3/4 NPS, CL.300#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A03E | 12 NOS | $25.00 |
| 6 | RING SPACERS : 6 NPS, CL.300#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A03E | 5 NOS | $29.00 |
| 10 | RING SPACERS : 6 NPS, CL.600#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A06E | 3 NOS | $29.90 |
| 11 | RING SPACERS : 2 NPS, CL.600#, RF, SMF ( Ra=3.2 - 6.3μm ), NACE MR-0175/ISO 15156, ASTM A 516 GR.70 N, (FIG.8, ASME B16.48) | A06E | 7 NOS | $70.00 |
SPECIFICATION TABLE
Spades & Ring Spacers Flange Specifications Chart
Explore the complete specifications of ASME B16.48 Spades & Ring Spacers manufactured by Manibhadra Metals, including size range, pressure ratings, international standards, face types, surface coatings, manufacturing process, testing, certifications, and available configurations. Our Spades, Paddle Blinds, Ring Spacers, and Paddle Spacers are manufactured to meet ASME, ANSI, DIN, EN, BS, JIS, MSS, AWWA, GOST, and other applicable standards for reliable positive isolation in oil & gas, petrochemical, refinery, power, and industrial piping systems.
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| Spades & Ring Spacers Specification Reference | |
|---|---|
| ASME B16.5 Spade Flange Size Chart | 1/2" (15 NB) to 48" (1200 NB) DN10~DN5000 |
| Spade Flange Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Spade Flange |
| JIS Stainless Steel Ring Spacers | 5K, 10K, 16K, 20K, 30K, 40K, 63K Spade Flange |
| UNI Paddle Spacers | 6Bar 10Bar 16Bar 25Bar 40Bar Spade Flange |
| Spade Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Spade Flange, ASME Spade Flange, BS Spade Flange, DIN Spade Flange, EN Spade Flange, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Spade Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Spade Flange |
| EN ANSI B16.48 Ring Spacers | 6Bar 10Bar 16Bar 25Bar 40Bar Spade Flange |
| Test Certificates of ANSI B16.48 Ring Spacers |
EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc. |
| Coating of SS Ring Spacers | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Spade Flange |
| Most Common Types of Spade Flange | Forged / Threaded / Screwed / Plate |
| Production Technique | Forged, Heat Treated and Machined |
| Connect Type / Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Special Design for ANSI B16.48 Class 150 Paddle Blanks |
As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2") to 200 NB (8") Equal and Reducing Configurations |
| Test | Direct-reading Spectrograph, Hydrostatic Testing Machine, X-ray Detector, Ultrasonic Flaw Detector, Magnetic Particle Detector |
| Equipment | Press Machine, Bending Machine, Pushing Machine, Electric Bevelling Machine, Sand-blasting Machine, etc. |
| Origin of Carbon Steel Paddle Spacers | Indian / West Europe / Japan / USA / Korean |
| Manufacturer of ANSI B16.48 Class 150 Paddle Blanks |
ANSI, DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE, etc. Spade Flange: BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange |
| B.S Standards | BS4504, BS3293, BS1560, BS10 |
| AS 2129 | Table D; Table E; Table H |
| ANSI, ASME, MSS, API & AWWA Standards | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| ANSI Standards | ANSI B16.5, ANSI B16.47 (API605), MSS SP44, ANSI B16.36, ANSI B16.48 |
| American Standard | American Standard (ANSI) |
| German Standard | German Standard (DIN) |
| British Standard | British Standard (BS) |
| DIN Standards | DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 Spade Flange |
| Other Standards | AWWA C207; EN1092-1; GOST12820; JIS B2220; KS B1503; SABS1123; NFE29203; UNI2276 |
| Spade Flange Uses & Applications |
Bitumen Upgraders Heavy Oil Refineries Nuclear Power Petrochemicals and Acids |
| Export to ANSI B16.48 Spades | Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc. |
| Material Test Certificates | Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103 and NACE MR0175 |
Materials
Spades & Ring Spacers Flange Material Grades
Explore the complete range of ASME B16.48 Spades & Ring Spacers manufactured by Manibhadra Metals in Carbon Steel, Stainless Steel, Alloy Steel, Duplex, Super Duplex, Titanium, Copper, Copper Nickel, Inconel, Hastelloy, Monel, Nickel, Aluminium, Incoloy, 254 SMO, and other special alloys. Our Spades, Paddle Blinds, Paddle Spacers, and Ring Spacers are supplied in accordance with ASTM, ASME, ANSI, DIN, EN, ISO, BS, and JIS standards for reliable positive isolation in high-pressure and critical piping systems.
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| Material | Standards & Grades |
|---|---|
| Copper Spades & Paddle Blinds | T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910, C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000, C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc. |
| Copper Nickel Spades & Paddle Blinds | ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600), Cupro Nickel 70/30 (C71500), UNS C71640 |
| Brass Spades & Paddle Blinds | 3602 / 2604 / H59 / H62 / etc. |
| Carbon Steel Paddle Spacers | ASTM/ASME A/SA105, A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield Carbon Steel ASTM A694 / A694 F52, F56, F60, F65, F70, F80 |
| Stainless Steel Paddle Blanks | ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409 |
| Alloy Steel Ring Spacers | ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91 |
| Titanium Spades & Paddle Blinds |
ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7 ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 | R52400/GR.7 | R53400/GR.12 | R56320/GR.9 | R56400/GR.5 |
| Inconel Spades & Paddle Blinds | ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, X750 |
| Alloy 20 Spades & Paddle Blinds | ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3 |
| Aluminium Spades & Paddle Blinds | 5052 / 6061 / 6063 / 2017 / 7075 / etc. |
| Nickel Spades & Paddle Blinds | ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC |
| Hastelloy Spades & Paddle Blinds | ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X |
| Monel Spades & Paddle Blinds | ASTM B564 / ASME SB564, Monel 400 (UNS N04400), Monel 500 (UNS N05500) |
| Duplex Spades & Paddle Blinds | S31803 / S32205, ASTM A182 Grades F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| Super Duplex Spades & Paddle Blinds | S32750 / S32760, ASTM A182 Grades F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| Nimonic Spades & Paddle Blinds | Nimonic 75, Nimonic 80A, Nimonic 90 |
| Incoloy Spades & Paddle Blinds | ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 |
| 254 SMO Spades & Paddle Blinds | ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547 |
| Other Spades & Ring Spacers Materials | Tin Bronze, Aluminium Bronze, Lead Bronze |
PRODUCT VARIANTS AND SPECIFICATIONS
Spades & Ring Spacers Material Types & Configurations
Explore our range of Spades, Paddle Blinds, Ring Spacers, and Paddle Spacers available in multiple pressure classes, materials, sizes, face types, and international standards for reliable pipeline isolation applications.
ASME B16.5 Spade Flange
Black finish, DN50, PN50 Spade / Paddle Blind manufactured in ASTM A350 LF2 for pipeline isolation applications.
ASME B16.5 Ring Spacer Flange
1½ Inch, 300# Ring Spacer manufactured in ASTM A182 material for use between compatible piping flanges.
ANSI B16.48 Blind Spade Flange
300LB ASTM A515 Paddle Blind designed as a solid line blank for positive pipeline isolation in accordance with ANSI / ASME B16.48 requirements.
ASME B16.47 Series A Spade & Ring Spacer
DN150, PN50 Spacer Ring and Blind Flange manufactured in ASTM A182 F316 for large-diameter and critical piping applications.
ASME B16.47 Series B Spade & Ring Spacer
DN400, PN150, Flat Face Spacer Ring manufactured in ASTM A350 LF2 Class 1 for pipeline isolation applications.
ASME B16.48 Class 150 Ring Spacer
DN750 Flat Face Ring Spacer / Spade Flange manufactured in ASTM A350 LF2 Class 1 for large-diameter piping systems.
ASME B16.5 Class 300 Ring Spacer
2 Inch, 300LB Spade Spacer / Ring Spacer manufactured in ASTM A182 F304 stainless steel for high-pressure piping applications.
EN 1092-1 Type 02 Spade & Ring Spacer
DN50, PN50 ASTM A182 F316 Spacer Ring and Blind designed for industrial pipeline isolation applications.
EN 1092-2 PN16 Spacer Ring
PN16 Pipe Flange Spacer Ring designed for installation between compatible EN 1092 flange connections.
Forged Paddle Spacer Flange
Forged Paddle Spacer designed to maintain normal pipeline flow and provide a removable arrangement for line isolation systems.
AWWA C207 Class D Paddle Spacer
Class D Paddle Spacer designed for compatible AWWA C207 flange connections and large-diameter piping applications.
MSS SP-44 Spade & Ring Spacer
Spade and Ring Spacer configuration for compatible MSS SP-44 flange connections in industrial and large-diameter piping systems.
DIMENSIONS TABLE
Spades & Ring Spacers Flange Dimensions
The Paddle Blank & Ring Spacer Dimensions Chart provides detailed dimensional information for ASME B16.48 Spades, Paddle Blanks, Paddle Spacers, and Ring Spacers across various nominal pipe sizes and pressure classes, including Class 150, 300, 600, 900, 1500, and 2500. It includes key measurements such as NPS, outside diameter (A), inside diameter (B), center-to-end dimension (C), thickness (t), and handle width (W). Nominal pipe sizes are shown in inches, while dimensional values are provided in millimetres (mm) to assist with product selection, pipeline isolation, and piping system requirements.
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DIMENSIONS TABLE
Class 150 Spades & Ring Spacers Flange Dimensions Chart
Dimensions for Class 150 Paddle Blanks (Spades) and Paddle Spacers (Ring Spacers) from NPS 1/2″ to 24″. All dimensional values A, B, C, t, and W are in millimetres (mm).
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| NPS (Inch) |
Outside Dia A (mm) |
Inside Dia B (mm) |
Center to End C (mm) |
Thickness t (mm) |
Handle Width W (mm) |
|---|---|---|---|---|---|
| 1/2 | 45 | 16 | 126 | 3 | 32 |
| 3/4 | 54 | 21 | 131 | 3 | 32 |
| 1 | 64 | 27 | 136 | 3 | 32 |
| 1-1/4 | 73 | 42 | 145 | 6.4 | 32 |
| 1-1/2 | 83 | 48 | 145 | 6.4 | 32 |
| 2 | 102 | 61 | 155 | 6.4 | 32 |
| 2-1/2 | 107 | 73 | 170 | 6.4 | 32 |
| 3 | 133 | 89 | 170 | 6.4 | 32 |
| 3-1/2 | 159 | 102 | 202 | 9.7 | 38 |
| 4 | 172 | 114 | 202 | 9.7 | 38 |
| 5 | 194 | 141 | 225 | 9.7 | 38 |
| 6 | 219 | 168 | 225 | 12.7 | 38 |
| 8 | 276 | 219 | 267 | 12.7 | 38 |
| 10 | 337 | 273 | 322 | 15.7 | 44 |
| 12 | 406 | 324 | 357 | 19.1 | 44 |
| 14 | 448 | 356 | 378 | 19.1 | 44 |
| 16 | 511 | 406 | 410 | 22.4 | 44 |
| 18 | 546 | 457 | 427 | 25.4 | 51 |
| 20 | 603 | 508 | 455 | 28.4 | 51 |
| 24 | 714 | 610 | 512 | 31.8 | 51 |
DIMENSIONS TABLE
Class 300 Spades & Ring Spacers Flange Dimensions Chart
Dimensions for Class 300 Paddle Blanks (Spades) and Paddle Spacers (Ring Spacers) from NPS 1/2″ to 24″. All dimensional values A, B, C, t and W are in millimetres (mm).
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| NPS (Inch) |
Outside Dia A (mm) |
Inside Dia B (mm) |
Center to End C (mm) |
Thickness t (mm) |
Handle Width W (mm) |
|---|---|---|---|---|---|
| 1/2 | 51 | 16 | 129 | 6.4 | 32 |
| 3/4 | 64 | 21 | 136 | 6.4 | 32 |
| 1 | 70 | 27 | 139 | 6.4 | 32 |
| 1-1/4 | 79 | 42 | 150 | 6.4 | 32 |
| 1-1/2 | 92 | 48 | 150 | 6.4 | 32 |
| 2 | 108 | 61 | 158 | 9.7 | 32 |
| 2-1/2 | 127 | 73 | 177 | 9.7 | 32 |
| 3 | 146 | 89 | 177 | 9.7 | 32 |
| 3-1/2 | 162 | 102 | 205 | 12.7 | 38 |
| 4 | 178 | 114 | 205 | 12.7 | 38 |
| 5 | 213 | 141 | 240 | 15.7 | 38 |
| 6 | 248 | 168 | 240 | 15.7 | 38 |
| 8 | 305 | 219 | 281 | 22.4 | 38 |
| 10 | 359 | 273 | 333 | 25.4 | 44 |
| 12 | 419 | 324 | 363 | 28.4 | 44 |
| 14 | 483 | 356 | 395 | 31.8 | 44 |
| 16 | 536 | 406 | 422 | 38.1 | 44 |
| 18 | 594 | 457 | 450 | 41.1 | 51 |
| 20 | 651 | 508 | 480 | 44.5 | 51 |
| 24 | 772 | 610 | 540 | 50.8 | 51 |
DIMENSIONS TABLE
Class 600 Spades & Ring Spacers Flange Dimensions Chart
Dimensions for Class 600 Paddle Blanks (Spades) and Paddle Spacers (Ring Spacers) from NPS 1/2″ to 24″. All dimensional values A, B, C, t and W are in millimetres (mm).
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| NPS (Inch) |
Outside Dia A (mm) |
Inside Dia B (mm) |
Center to End C (mm) |
Thickness t (mm) |
Handle Width W (mm) |
|---|---|---|---|---|---|
| 1/2 | 51 | 16 | 129 | 6.4 | 32 |
| 3/4 | 64 | 21 | 136 | 6.4 | 32 |
| 1 | 70 | 27 | 139 | 6.4 | 32 |
| 1-1/4 | 79 | 37 | 150 | 9.7 | 32 |
| 1-1/2 | 92 | 43 | 150 | 9.7 | 32 |
| 2 | 108 | 55 | 158 | 9.7 | 32 |
| 2-1/2 | 127 | 67 | 177 | 12.7 | 32 |
| 3 | 146 | 83 | 177 | 12.7 | 32 |
| 3-1/2 | 159 | 96 | 211 | 15.7 | 38 |
| 4 | 191 | 108 | 211 | 15.7 | 38 |
| 5 | 238 | 135 | 248 | 19.1 | 38 |
| 6 | 264 | 162 | 248 | 22.4 | 38 |
| 8 | 318 | 212 | 288 | 28.4 | 38 |
| 10 | 397 | 265 | 352 | 35.1 | 44 |
| 12 | 454 | 315 | 381 | 41.1 | 44 |
| 14 | 489 | 346 | 398 | 44.5 | 44 |
| 16 | 562 | 397 | 435 | 50.8 | 44 |
| 18 | 610 | 448 | 459 | 53.8 | 51 |
| 20 | 679 | 497 | 493 | 63.5 | 51 |
| 24 | 787 | 597 | 547 | 73.2 | 51 |
DIMENSIONS TABLE
Class 900 Spades & Ring Spacers Flange Dimensions Chart
Dimensions for Class 900 Paddle Blanks (Spades) and Paddle Spacers (Ring Spacers). All dimensional values A, B, C, t and W are in millimetres (mm).
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| NPS (Inch) |
Outside Dia A (mm) |
Inside Dia B (mm) |
Center to End C (mm) |
Thickness t (mm) |
Handle Width W (mm) |
|---|---|---|---|---|---|
| 1/2 | 60 | 16 | 134 | 6.4 | 32 |
| 3/4 | 67 | 21 | 137 | 6.4 | 32 |
| 1 | 76 | 27 | 142 | 6.4 | 32 |
| 1-1/4 | 86 | 37 | 151 | 9.7 | 32 |
| 1-1/2 | 95 | 43 | 151 | 9.7 | 32 |
| 2 | 140 | 55 | 174 | 12.7 | 32 |
| 2-1/2 | 162 | 67 | 186 | 12.7 | 32 |
| 3 | 165 | 83 | 186 | 15.7 | 32 |
| 4 | 203 | 108 | 217 | 19.1 | 38 |
| 5 | 244 | 135 | 259 | 22.4 | 38 |
| 6 | 286 | 162 | 259 | 25.4 | 38 |
| 8 | 356 | 212 | 307 | 35.1 | 38 |
| 10 | 432 | 265 | 370 | 41.1 | 44 |
| 12 | 495 | 315 | 401 | 47.8 | 44 |
| 14 | 518 | 346 | 412 | 53.8 | 44 |
| 16 | 572 | 397 | 440 | 60.5 | 44 |
| 18 | 635 | 448 | 471 | 66.5 | 51 |
| 20 | 696 | 497 | 501 | 73.2 | 51 |
| 24 | 835 | 597 | 571 | 88.9 | 51 |
DIMENSIONS TABLE
Class 1500 Spades & Ring Spacers Flange Dimensions Chart
Dimensions for Class 1500 Paddle Blanks (Spades) and Paddle Spacers (Ring Spacers) from NPS 1/2″ to 24″. All dimensional values A, B, C, t and W are in millimetres (mm).
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| NPS (Inch) |
Outside Dia A (mm) |
Inside Dia B (mm) |
Center to End C (mm) |
Thickness t (mm) |
Handle Width W (mm) |
|---|---|---|---|---|---|
| 1/2 | 61 | 16 | 135 | 6.4 | 32 |
| 3/4 | 67 | 21 | 137 | 9.7 | 32 |
| 1 | 76 | 27 | 142 | 9.7 | 32 |
| 1-1/4 | 86 | 35 | 151 | 9.7 | 32 |
| 1-1/2 | 95 | 41 | 151 | 12.7 | 32 |
| 2 | 140 | 53 | 174 | 12.7 | 32 |
| 2-1/2 | 162 | 63 | 190 | 15.7 | 32 |
| 3 | 172 | 78 | 190 | 19.1 | 32 |
| 4 | 206 | 102 | 219 | 22.4 | 38 |
| 5 | 251 | 128 | 256 | 28.4 | 38 |
| 6 | 279 | 154 | 256 | 35.1 | 38 |
| 8 | 349 | 203 | 303 | 41.1 | 38 |
| 10 | 432 | 255 | 370 | 50.8 | 44 |
| 12 | 518 | 303 | 412 | 60.5 | 44 |
| 14 | 575 | 333 | 442 | 66.5 | 44 |
| 16 | 638 | 381 | 472 | 76.2 | 44 |
| 18 | 702 | 429 | 504 | 85.9 | 51 |
| 20 | 752 | 478 | 530 | 95.3 | 51 |
| 24 | 899 | 575 | 603 | 111.3 | 51 |
DIMENSIONS TABLE
Class 2500 Spades & Ring Spacers Flange Dimensions Chart
Dimensions for Class 2500 Paddle Blanks (Spades) and Paddle Spacers (Ring Spacers) from NPS 1/2″ to 12″. All dimensional values A, B, C, t and W are in millimetres (mm).
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| NPS (Inch) |
Outside Dia A (mm) |
Inside Dia B (mm) |
Center to End C (mm) |
Thickness t (mm) |
Handle Width W (mm) |
|---|---|---|---|---|---|
| 1/2 | 67 | 16 | 137 | 9.7 | 32 |
| 3/4 | 73 | 21 | 140 | 9.7 | 32 |
| 1 | 83 | 27 | 145 | 9.7 | 32 |
| 1-1/4 | 102 | 35 | 161 | 12.7 | 32 |
| 1-1/2 | 114 | 41 | 161 | 15.7 | 32 |
| 2 | 143 | 53 | 175 | 15.7 | 32 |
| 2-1/2 | 165 | 63 | 201 | 19.1 | 32 |
| 3 | 194 | 78 | 201 | 22.4 | 32 |
| 4 | 232 | 102 | 232 | 28.4 | 38 |
| 5 | 276 | 128 | 273 | 35.1 | 38 |
| 6 | 314 | 154 | 273 | 41.1 | 38 |
| 8 | 384 | 198 | 321 | 53.8 | 38 |
| 10 | 473 | 248 | 390 | 66.5 | 44 |
| 12 | 546 | 289 | 427 | 79.2 | 44 |
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 are Spades and Ring Spacers?
Manibhadra Metals manufactures and supplies Spades and Ring Spacers used for positive mechanical isolation in piping systems. A Spade, Paddle Blind, or Paddle Blank is a solid component used to block pipeline flow, while a Ring Spacer or Paddle Spacer has an open bore that allows normal flow through the pipeline.
What pressure classes of Spades and Ring Spacers does Manibhadra Metals supply?
Manibhadra Metals supplies ASME B16.48 Spades and Ring Spacers in Class 150, Class 300, Class 600, Class 900, Class 1500, and Class 2500, subject to the applicable size, material, design, and project specification.
Which materials are available for Spades and Ring Spacer?
Manibhadra Metals supplies Spades, Paddle Blinds, Ring Spacers, and Paddle Spacers in Carbon Steel, Stainless Steel, Alloy Steel, Duplex, Super Duplex, Titanium, Inconel, Incoloy, Hastelloy, Monel, Nickel, Copper, Copper Nickel, Aluminium, 254 SMO, and other special alloys.
What sizes of Spades and Ring Spacers are available?
Manibhadra Metals supplies ASME B16.48 Spades and Ring Spacers in a wide range of nominal pipe sizes. The applicable dimensional range depends on the pressure class and design. Customized dimensions can also be manufactured according to approved drawings and project specifications.
Why choose Manibhadra Metals for ASME B16.48 Spades & Ring Spacers?
Manibhadra Metals supplies ASME B16.48 Spades, Paddle Blinds, Paddle Spacers, and Ring Spacers in multiple materials, sizes, pressure classes, and configurations. We serve domestic and international industrial piping requirements with standard and customized line isolation products manufactured according to applicable specifications and customer requirements.
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