Super Duplex Valve

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Super duplex valve manufacturer in USA

Super duplex valves engineered for high pressure, high corrosion service environments across the United States. SVR Global produces gate, globe, ball, check, and butterfly valves in super duplex stainless steel grades, built to hold tight tolerances under sustained mechanical and chemical stress.

What is a Super Duplex Valve?

The super duplex valve is made up of a stainless steel that is made up of a two-phase composition, which consists of equal amounts of ferrite and austenite phases. The strength of the steel is a result of the mixture of the two and hence is stronger than the single-phase austenitic stainless steel and more tough than single-phase ferritic stainless steel. It is more resistant to yield strength than the standard austenitic stainless steels. Its other advantages include resistance to pitting, crevice, and chloride stress corrosion.

Materials and Grades:

SVR Global manufactures valves using the following super duplex and duplex grades:

UNS S32750 / F53 (SAF 2507)
UNS S32760 / F55
UNS S32550 / F61
UNS S32205 / F60 (duplex)
UNS S31803 (duplex)

Each casting and forging is traceable, with mill test certificates and material verification available on request.

Manufacturing Process of Super duplex valve:

Material Sourcing & Verification - Raw duplex and super duplex billets, bars, and castings are sourced and verified against ASTM/ASME chemical composition requirements.
Casting/Forging - Bodies and components are cast or forged to the required pressure class and dimensional specification.
Machining - CNC machining ensures that the port, flange face, and stem bore is within tolerance.
Heat Treatment - The solution annealing and controlled cooling processes ensure that the balanced austenite to ferrite ratio is achieved for corrosion resistance purposes.
Assembly - Ball, seats, stems, and trim are assembled and torqued to specifications.
Testing - Hydrostatic shell test, seat leakage test, and Non-destructive testing (NDT: radiographic, penetrant or ultrasonic test) are carried out.
Marking & Packaging - Valve is marked according to ASME B16.34 or client specification standards.

Super Duplex Technical Specifications:

Parameter	Range
Size	1/4" to 72"
Pressure Class	150 to 2500 (ANSI); PN10 to PN450
End Connections	Flanged, buttweld, socket weld, threaded, wafer, lug
Operation	Handwheel, gear, lever, pneumatic actuator, electric actuator
Standards	API 6D, API 600, API 602, ASME B16.34, ISO 17292, AWWA

Industries We Serve:
Oil & Gas Production and Processing – Valves for wellheads, pipelines and processing facilities dealing with crude oil, natural gas and water produced along with hydrocarbons.
Offshore and Subsea Platforms – Valves that are designed to resist exposure to sea water and subsea high pressure.
Marine and Ship Building – Valves used for ballast, bilge and sea water systems.
Chemical Processing – Valves used for processing systems dealing with acid, alkali and other chemicals.
Desalination & Water Treatment – Valves for RO trains, intake systems and high chloride content water systems.
Power Generation – Valves for steam system and cooling water system.
Mining and Mineral Processing – Valves for slurry, tailings and other abrasive fluids.
Pulp and Paper – Valves for bleaching systems and chemical heavy processing systems.
Refining – Valves for high pressure and high temperature pipelines.
Coating and Surface Finish Options:
Passivation - strengthens the natural oxide layer for better corrosion resistance
Electropolishing - smooths the surface to reduce pitting and improve cleanability
Bead blasting - uniform matte finish, often a pre-coating step
Polished finish - low-roughness surface for smooth flow contact
PTFE/PFA lining - added chemical resistance for wetted parts
Epoxy coating - external protection against atmospheric corrosion
Zinc/nickel plating - used on external fasteners and components
Anti galling coating - prevents stem seizing during repeated operation
Surface roughness control (Ra) - specified per application for fouling and inspection needs

Super Duplex Plug Valve

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Super Duplex knife Gate Valve

Super Duplex knife Gate Valve Body: SAF2507, SS2507 Knife: SS304, SS316 Disc: SS304, SS316L Wedge: SS304, SS316, SS316L Packing: PTFE Seal Ring: Polyurethane, EPDM, NBR, VITON Yoke: SS304, SS316 Packing Gland: CF8, WCB Nominal Size: DN50 to DN450 Nominal Pressure: Class150 to Class300, PN10 End Type: Wafer Type, Lug Type Actuation: Handwheel, Electric Actuated, Pneumatic Actuated Dimensions Unit: mm PN10 DN L D D1 D2 D0 N-Th d h1 50 48 165 125 99 180 4-M16 Φ18 290 65 48 185 145 118 200 4-M16 Φ18 330 80 51 200 160 132 200 8-M16 Φ18 358 100 51 220 180 156 240 8-M16 Φ18 378 125 57 250 210 184 260 8-M16 Φ18 428 150 57 285 240 211 280 8-M20 Φ23 490 200 70 340 295 266 300 8-M20 Φ23 588 250 70 395 350 319 320 12-M20 Φ23 690 300 76 445 400 370 350 12-M20 Φ23 815 350 76 505 460 429 400 16-M20 Φ23 890 400 89 565 515 480 450 16-M24 Φ27 980

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Super Duplex Globe Valve

Super Duplex Globe Valve Body: Super Duplex Stainless Steel 4A, 5A, 6A, F53, F55, Duplex Stainless Steel, Alloy 20, Hastelloy, Titanium, Stainless Steel, Carbon Steel Disc: A182 F51, F53, F55 Disc Nut: A182 F51, F53, F55 Stem: A182 F51, F53, F55 Nut: A194.4 Bolt: A193 B16 Gasket: Stainless Steel+Graphite Backseat: A182 F51, F53, F55 Bonnet: A890 4A, A890 5A, A890 6A Packing: Graphite, PTFE Pin: A182 F6a Gland: A182 F316L Gland Follower: A351 CF8 Stem Nut: Copper Alloy Nominal Size: 1/4″ to 2″ Nominal Pressure: Class800 to Class2500 Actuation: Handwheel, Electric Actuated, Pneumatic Actuated Dimensions Unit: mm Class800 Size d L H(Open) W 1/4″ 8 79 176 100 3/8″ 10 79 176 100 1/2″ 13 92 176 100 3/4″ 17 111 212 125 1″ 23 130 230 160 1 1/4″ 30 152 254 160 1 1/2″ 37 172 294 180 2″ 46 200 327 200

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Super Duplex Gate Valve

Super Duplex Gate Valve Body: Super Duplex 5A Stainless Steel, Duplex Stainless Steel, Alloy 20, CN7M, Hastelloy, Carbon Steel, WC6, WC9,C5, C12, LCB, CF3M Bonnet, Gate: Duplex Stainless Steel, Super Duplex Stainless Steel, Alloy 20, CN7M, Hastelloy, Carbon Steel, WC6, WC9, C5, C12, LCB, CF3M Trim: SS304, SS316, SS304L, SS316L, 13%Cr.Steel, Stellite, Hastelloy, Alloy 20, Duplex Stainless Steel, Super Duplex Stainless Steel Gland Packing: Graphite, PTFE Nominal Size: DN15 to DN500 Nominal Pressure: PN 1.0 to 25 Mpa, Class 150 to 2500 End Connections: Flanged, Socketweld, Buttweld Actuation: Handwheel Operated, Electric Actuated, Pneumatic Actuated Dimensions Unit: mm PN16 DN L D D1 D2 b Z-d f H H1 D0 15 130 95 65 45 14 4-14 2 220 240 120 20 150 105 75 55 14 4-14 2 255 284 140 25 160 115 85 65 14 4-14 2 275 303 160 32 180 135 100 78 16 4-18 2 280 321 180 40 200 145 110 85 16 4-18 3 300 352 200 50 250 160 125 100 16 4-18 3 358 438 240 65 265 180 145 120 18 4-18 3 375 450 240 80 280 195 160 135 20 8-18 3 438 528 280 100 300 215 180 155 20 8-18 3 502 620 320 125 325 245 210 185 22 8-18 3 612 753 360 150 350 280 240 210 24 8-23 3 676 847 360 200 400 335 295 265 26 12-23 3 820 1039 400 250 450 405 355 320 30 12-25 3 969 1245 450 300 500 460 410 375 30 12-25 3 1142 1472 560 350 550 520 470 435 34 16-25 4 1280 1450 640 400 600 580 525 485 36 16-30 4 1452 1887 640

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Super Duplex Dual Plate Check Valve

Super Duplex Dual Plate Check Valve Body: Super Duplex Stainless Steel 4A, 5A, 6A, Duplex Stainless Steel, Alloy 20, CN7M, Hastelloy, Carbon Steel, WC6, WC9, C5, C12, LCB, CF3M Disc: Super Duplex Stainless Steel, Duplex Stainless Steel, Alloy 20, CN7M, Hastelloy, Carbon Steel, WC6, WC9, C5, C12, LCB, CF3M, Super Duplex Stainless Steel 4A, 5A, 6A Trim: SS304, SS316, SS304L, SS316L, 13%Cr.Steel, Stellite, Hastelloy, Alloy 20, Duplex Stainless Steel, Super Duplex Stainless Steel Gland Packing: Graphite, PTFE Nominal Size: DN50 to DN600 Nominal Pressure: PN 1.0 to 25 Mpa, Class 150 to 2500 Dimensions Unit: mm PN16 DN D D1 D2 L R T 50 102 65 32 54 29 25 60 121 78 42.1 60 36 29.3 80 134 94 82 67 43.4 27.7 100 171 117 97.5 67 55.6 26.7 125 193 145 111.8 83 67.6 38.6 150 219 171 127 95 78.6 46.3 200 276 222 161.7 127 104.4 66 250 336 276 213.4 140 128 70.7 300 406 327 237.9 181 156.7 102 350 448 375 312.2 184 179.8 89.2 400 511 416 351 191 198.4 92.5

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Super Duplex Swing Check Valve

Super Duplex Swing Check Valve Body: Super Duplex Stainless Steel 4A, 5A, 6A, Duplex Stainless Steel, Alloy 20, CN7M, Hastelloy, Carbon Steel, WC6, WC9, C5, C12, LCB, CF3M Disc: Super Duplex Stainless Steel, Duplex Stainless Steel, Alloy 20, CN7M, Hastelloy, Carbon Steel, WC6, WC9, C5, C12, LCB, CF3M, Super Duplex Stainless Steel 4A, 5A, 6A Trim: SS304, SS316, SS304L, SS316L, 13%Cr.Steel, Stellite, Hastelloy, Alloy 20, Duplex Stainless Steel, Super Duplex Stainless Steel Gland Packing: Graphite, PTFE End Connections: Flanged, Socketweld, Buttweld Actuation: Handwheel Operated, Electric Actuated, Pneumatic Actuated Nominal Size: DN40 to DN400 Nominal Pressure: PN 1.0 to 25 Mpa, Class 150 to 2500 Dimensions Unit: mm PN16 DN L H 40 180 129 50 200 147 65 240 161 80 260 178 100 300 190 125 350 265 150 400 285 200 500 345 250 600 394 300 700 420 350 800 455 400 900 520

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Super Duplex Floating Ball Valve

Super Duplex Floating Ball Valve Body : Super Duplex Stainless Steel Ball: Super Duplex Stainless Steel Seats: PTFE, HDPE, RPTFE, PPL Seals : EPDM Stem : Super duplex stainless steel Nominal Size: DN50 to DN200 Nominal Pressure: Class150 to Class2500, PN16 to PN63 Dimensions Unit: mm Class150 DN d L(RF) d1 d2 D b n-Фd H W 50 51 216 92 127 165 23 8-Ф19 140 200 65 64 241 105 149 190 26 8-Ф22 160 290 80 76 283 127 168.5 210 29 8-Ф22 180 290 100 102 305 157 200 254 32 8-Ф22 208 360 125 127 381 186 235 279 35 12-Ф22 220 600 150 152 403 216 270 318 37 12- Ф22 290 800 200 203 502 270 330 381 42 12- Ф25 300 1000

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Super Duplex Trunnion Ball Valve

Super Duplex Trunnion Ball Valve Body : Super Duplex Stainless Steel Ball: Super Duplex Stainless Steel Seats: PTFE, HDPE, RPTFE, PPL Seals : EPDM Stem : Super duplex stainless steel Nominal Size: DN50 to DN400 Nominal Pressure: Class150 to Class2500, PN16 to PN63 Dimensions Unit: mm Class150 DN d L(RF) d1 d2 D b n-Фd H W 50 51 216 92 127 165 23 8-Ф19 176 350 65 64 241 105 149 190 26 8-Ф22 200 400 80 76 283 127 168.5 210 29 8-Ф22 215 400 100 102 305 157 200 254 32 8-Ф22 252 500 150 152 403 216 270 318 37 12-Ф22 330 1000 200 203 502 270 330 381 42 12-Ф25 448 300 250 254 568 324 387.5 445 48 16- Ф 29 505 350 300 305 648 381 451 521 51 16- Ф 32 556 400 350 337 762 413 514.5 584 54 20- Ф 32 620 500 400 387 838 470 571.5 648 58 20- Ф 35 700 500

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Super Duplex Lug Butterfly Valve

Super Duplex Lug Butterfly Valve Body: Super Duplex S2507, UNS S32750, UNS S32760, UNS S32950 Bushing: PTFE Seat: PTFE, VITON, EPDM Shaft: Stainless Steel Disc: Stainless Steel, Carbon Steel Shaft: Stainless Steel O Ring: NBR Dual Plate: Stainless Steel Rivel: Aluminium Swing Bolt: Alloy Steel Nut: Steel Lever: Iron Nominal Size: DN50 to DN300 Nominal Pressure: PN10 to PN64, Class150 to Class2500 Dimensions Unit: mm Class150 DN L фK N-фD 50 43 125 4-ф18 65 46 145 4-ф18 80 46 160 8-ф18 100 52 180 8-ф18 125 56 210 8-ф18 150 56 240 8-ф22 200 60 295 8-ф22 250 68 350 12-ф22 300 78 400 12-ф22  

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