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Gate Valve

Browse our high-performance industrial valves engineered for excellence.

Gate valve manufacturers in USA 

SVR Global designs, and tests gate valves for industrial and municipal systems that require full bore isolation and shutoff. Our facilities operate in the United States, giving customers shorter lead times, direct engineering support, and compliance with domestic sourcing requirements for gate valve manufacturing.

What Is a Gate Valve?

The gate valve is an example of a shut-off valve whereby there is a moveable disc known as the gate that moves vertically in the flow path, allowing full passage of flow or blocking the flow completely. This type of valve is designed for isolation use because it may develop vibrations when partially opened.

How Gate Valve works?

The handwheel or actuator turns, moving the stem up or down. This action, in turn, moves the gate up or down within the valve body. When the valve is open, the gate rests off the flow path to ensure straight-line flow without any turbulence or pressure loss. When the valve is closed, the gate seals onto the valve body.

Components of a Gate Valve Assembly:

  • Valve body - houses the flow passage and gate

  • Gate (wedge or disc) - the moving element that opens or blocks flow

  • Seat - the sealing surface the gate presses against when closed

  • Stem - connects the handwheel or actuator to the gate

  • Bonnet - encloses the stem and gate mechanism, sealing the valve interior

  • Packing - seals the stem against leakage at the bonnet

Types of Gate Valves We Manufacture:

  • Bellow Seal Gate Valve

  • Double Disc Gate Valve

  • Forged Steel gate Valve

  • Non Rising Stem Gate Valve

  • Pressure steel gate valve

  • Rising stem gate valve

Gate Valve Actuation Options:

  • Manual (Handwheel) Operation

The most common actuation method for gate valves, suited to applications where the valve is operated infrequently and doesn't require remote or automated control.

  • Electric Actuated Gate Valve

Utilize an electric motor for opening and closing the valve, which is appropriate for a remote control system that requires automation due to the impracticality of manual control or large valves needing greater torque than manual actuation.

  • Pneumatic Actuated Gate Valve

Use compressed air to operate the gate, offering faster cycling than electric actuation and simple integration into automated control systems.

  • Gear Operator Options

Bevel gear or worm gear operators reduce the torque needed to operate large or high-pressure gate valves manually, making handwheel operation practical on bigger valve sizes.

Materials Used in Gate Valve Construction:

  • Cast Steel and Carbon Steel Gate Valve

Used for standard industrial isolation service where cost efficiency matters more than corrosion resistance, common in oil, gas, and general process piping.

  • Stainless Steel Gate Valve

Used for corrosion resistance in chemical, high-purity, and sour service applications.

  • Bronze and Brass Gate Valve

Used in lower-pressure water and plumbing applications, often in smaller valve sizes.

  • Ductile Iron and Cast Iron Gate Valve

Common in water distribution and wastewater systems due to their durability and cost efficiency at larger sizes.

  • Alloy Options for Corrosive Service

Materials such as Monel, Hastelloy, and duplex stainless steel are used in highly corrosive or high temperature process environments where standard steel or iron would degrade.

Gate Valve Sizing and Specifications:

  • Valve Size Range

Standard offerings typically span 1/2" through 96" nominal pipe size, with smaller sizes common in plumbing and process piping and larger sizes used in water transmission mains.

  • Pressure Class and Temperature Ratings

Gate valve pressure classes commonly range from 125 to 2500 ANSI class, with temperature ratings dependent on body material and seat design, typically from -20°F up to 800°F for standard metal-seated designs.

  • Pressure Seal Bonnet Designs for High Pressure Service

Pressure seal bonnets use process pressure to help maintain the bonnet seal, making them well suited to high pressure, high temperature applications such as steam and power generation service.

Gate Valve Bonnet Types:

  • Bolted Bonnet

Uses bolts to secure the bonnet to the valve body, offering a straightforward design suited to a wide range of pressure classes and easy disassembly for maintenance.

  • Screwed Bonnet

Uses a threaded connection between the bonnet and body, common in smaller valve sizes and lower-pressure applications.

  • Welded Bonnet

Permanently joins the bonnet to the body through welding, eliminating a potential leak path and suited to high-pressure or high temperature service where the valve isn't expected to be disassembled.

  • Union Bonnet

Uses a union nut to connect the bonnet to the body, allowing easier removal for inspection or maintenance while maintaining a tight seal.

Gate Valve Seat Types:

Metal Seated Gate Valve

Use a metal to metal seal between the gate and body seat, suited to high temperature service and applications where elastomer seats would degrade.

Soft Seated (Resilient Seat) Gate Valve

Use an elastomer or rubber seating surface for tighter, lower leakage shutoff at lower pressures and temperatures, common in water distribution valves.

Gate Valve Standards and Ratings:

  • API 600 Compliance

  • ASME B16.34 Pressure-Temperature Ratings 

  • AWWA C500/C509/C515 for Water Service 

  • MSS SP-70 Standard 

  • NSF 61/372 Certification for Potable Water 

Installation and Maintenance of Gate Valves:

Wear Points for Gates

The wear points of gate valves include the seat, gate, stem threads, and packing. These are normally due to cycling of the valve, debris in the line, and incorrect partial-opening procedures.

Gate Valve Maintenance Plan

Maintenance activities on the gate valve involve the following: checking the packing; lubricating the stem; and checking the seat condition. Regularly exercising the gate valve through full stroke is necessary to ensure proper functioning.

Troubleshooting Gate Valve Leakage/ Sticking

Common causes of leaks in gate valves include worn or damaged seat, foreign material in between the gate and seat, and worn out packing. Causes of sticking of gate valves include worn stem threads, lack of lubrication, and corrosion in the bonnet.


Pressure Seal Gate Valve

Pressure Seal Gate Valve

Pressure Seal Gate Valve Body: WCB, WC6, WCC, CF8, CF8M, A105, F22, F304, F316 Seal Facing: Stellite Wedge: WCB, Stainless Steel Stem: A182 F6, F304, F316 Back Seat Facing: Stellite Gasket: Stainless Steel+Graphite Bonnet: A105, F22, F304, F316 Bonnet Bolt: A193 B7 Bonnet Nut: A194 2H Stem Packing: Graphite Split Ring: A105, F22, F304, F316 Cover: A105, F22, F304, F316 Lantern Ring: A182 F6a, A276 410 Gland Flange: WCB, CF8 Gland Eyebolt: A193 B7, A183 B16, , A183 B8 Gland Nut: A194 2H Yoke: WCB, CF8 Gear Box: Ductile iron Nominal Diameter: DN50 to DN250 Nominal Pressure: Class1500 to Class2500 End Connection: Flanged, Buttweld, Threaded or Welded Dimension Class1500 Unit: mm DN d D D1 L H W 50 47 216 92 368 510 280 65 57 244 105 419 560 300 80 70 267 127 470 620 350 100 92 311 157 546 728 400 125 111 375 186 673 870 450 150 136 394 216 705 1000 500 200 178 483 270 831 1130 750 250 222 585 324 991 1360 900  

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Double Disc Gate Valve

Double Disc Gate Valve

Double Disc Gate Valve 1. Body: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel 2. Drain Box: Cast iron, Ductile Iron 3. Disc: Carbon Steel, Stainless Steel, Brass 4. Top Wedge: Carbon Steel, Stainless Steel, Brass 5. Stem Nut: Ductile iron, Brass 6. Stem: Cast iron, Ductile iron 7. Bonnet: Cast Iron, Ductile iron 8. Packing: PTFE, Graphite 9. Gland: PTFE, Graphite 10. Gear Actuator: Cast Iron, Ductile Iron 11. Dispersing Plug: Cast Iron, Ductile Iron 12. High Intensity Spring: Carbon Steel, Stainless Steel, Brass 13. Orbit Roller: Carbon Steel, Stainless Steel, Brass Nominal Diameter: DN40 to DN800 Nominal Pressure: PN200 to PN500 Design and Manufacture: API600, ASME B16.34 Face to Face Dimension: ASME B16.10 Buttweld Dimension: ASME B16.25 Inspection and Test: API598 Dimensions PN10 Unit:mm DN L D D1 D2 H H1 D O 40 165 150 110 84 257 302 160 50 180 165 125 99 289 346 180 65 195 185 145 118 334 408 180 80 210 200 160 132 377 465 200 100 230 220 180 156 433 542 200 125 255 250 210 184 527 662 240 150 280 285 240 211 596 754 240 200 330 340 295 266 772 984 320 250 380 395 350 319 904 1168 320 300 420 445 400 370 1045 1357 400 350 450 505 460 429 1177 1542 400 400 480 565 515 480 1345 1759 500 450 510 615 565 530 1497 1972 500 500 540 670 620 582 1648 2173 600 600 600 780 725 682 1830 2458 600

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Forged Steel gate Valve

Forged Steel gate Valve

Forged Steel gate Valve Body: A105, F304, F316, F11 Seat: F6a+Stellite Wedge: F6a,F304, F316 Stem: Stainless Steel Bonnet: A105, F304, F316, F11 Packing: Graphite Gland: Stainless Steel Gland Flange: A105, F304, F316, F11 Stem Nut: Steel Handwheel: Iron Lock Nut: A194 2H Nut: A194 2H Bolt: A193 B7 Pin: A276 410 Bonnet Bolt: A193 B7 Nominal Diameter: DN15 to DN50 Nominal Pressure: Class800 to Class2500 End Connection: Socketweld, Buttweld, Flanged Dimension Class 800 Unit: mm DN L D L1 W H 15 79 21.8 9.6 100 151 20 92 27.1 12.7 100 158 25 111 33.8 12.7 125 185 32 120 42.6 12.7 160 239 40 120 48.7 12.7 160 243 50 140 61.1 15.9 180 279

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NRS Carbon steel Gate Valve

NRS Carbon steel Gate Valve

NRS Carbon steel Gate Valve Body: Carbon Steel Wedge: Carbon Steel Stem Nut: Brass, Bronze Stem: Stainless Steel Gasket: EPDM, Graphite Bonnet: Carbon Steel Locating Ring: Carbon Steel O Ring: EPDM Bolts: Carbon Steel Handwheel: Carbon Steel, Ductile Iron, Cast Iron Gland: Carbon Steel O-Ring: EPDM Nuts: Carbon Steel Washer: Carbon Steel Bolts: Carbon Steel Nominal Diameter: DN40 to DN400 Nominal Pressure: Class150 to Class2500, PN10 to PN420 End Connection: Flanged, Buttweld, Socketweld Dimension PN16 Unit: mm DN L D C B n-d b f W H 40 165 150 110 84 4-19 18 3 160 265 50 178 165 125 99 4-19 19 3 160 280 65 190 185 145 119 4-19 19 3 160 305 80 203 200 160 133 8-19 19 3 180 350 100 229 220 180 154 8-19 19 3 200 390 125 254 250 210 184 8-19 19 3 250 470 150 267 285 240 210 8-23 19 3 250 525 200 292 340 295 265 12-23 20 3 300 630 250 330 405 355 319 12-28 22 3 350 780 300 356 460 410 370 12-28 24.5 4 350 870 350 381 520 470 429 16-28 26.5 4 480 1100 400 406 580 525 480 16-31 28 4 480 1200

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NRS Ductile Iron Gate Valve

NRS Ductile Iron Gate Valve

NRS Ductile Iron Gate Valve Body: Ductile Iron Seat: Bronze Disc: Ductile iron Stem Nut: Brass Stem: Stainless Steel Gasket: SS420 Hexagonal Head Bolt: Carbon Steel Bonnet: Ductile iron Mid Gasket: EPDM O Ring: EPDM Stem Packing: PTFE Gland: Ductile iron Hexagonal Bolt: Carbon Steel Handwheel: Ductile Iron Hexagonal Head Bolt: Carbon Steel Nominal Diameter: DN40 to DN400 Nominal Pressure: Class150 to Class1500, PN10 to PN64 End Connection: Flanged, Buttweld, Socketweld Dimension PN10 Unit: mm DN L H n-d D2 D1 D 40 140 310 4-19 86 110 150 50 150 330 4-20 100 125 165 65 170 350 4-20 120 145 185 80 180 428 8-20 135 160 200 100 190 513 8-20 155 178 220 125 200 625 8-20 185 210 250 150 210 703 8-23 210 240 285 200 230 952 8-23 265 295 340 250 250 1150 12-23 320 350 395 300 270 1314 12-23 370 400 445 350 290 1450 16-23 435 460 505 400 310 1514 16-28 485 515 565  

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NRS Cast Iron Gate Valve

NRS Cast Iron Gate Valve

NRS Cast Iron Gate Valve Body: Cast Iron Seat: Bronze Disc: Cast Iron Stem Nut: Stainless Steel Stem: Stainless Steel Gasket: SS420 Hexagonal Head Bolt: Carbon Steel Bonnet: Cast Iron Mid Gasket: EPDM O Ring: EPDM Stem Packing: PTFE Gland: Cast iron Hexagonal Bolt: Carbon Steel Handwheel: Cast Iron, Ductile Iron Hexagonal Head Bolt: Carbon Steel Nominal Diameter: DN40 to DN400 Nominal Pressure: Class150 to Class1500, PN10 to PN64 End Connection: Flanged, Buttweld, Socketweld Dimension PN10 Unit: mm DN L H n-d D2 D1 D 40 140 310 4-19 86 110 150 50 150 330 4-20 100 125 165 65 170 350 4-20 120 145 185 80 180 428 8-20 135 160 200 100 190 513 8-20 155 178 220 125 200 625 8-20 185 210 250 150 210 703 8-23 210 240 285 200 230 952 8-23 265 295 340 250 250 1150 12-23 320 350 395 300 270 1314 12-23 370 400 445 350 290 1450 16-23 435 460 505 400 310 1514 16-28 485 515 565

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Rising Stem Stainless Steel Gate Valve

Rising Stem Stainless Steel Gate Valve

Rising Stem Stainless Steel Gate Valve Body: SS304, SS316, CF8, CF8M, F304, F316 Gate: SS304, SS316, CF8, CF8M, F304, F316 Stem: Stainless Steel, Bronze Gasket: Graphite+Stainless Steel, PTFE Bolt: Stainless Steel Nut: Stainless Steel Back Seat: Steel Bonnet: Stainless Steel Packing: Graphite, PTFE Gland: Steel Gland Flange:Stainless Steel Pin: Stainless Steel Eye Bolt: A193 B7 Gasket: Graphite+Stainless Steel, PTFE Nut: Stainless Steel Oil Filler: Steel Stem Nut: Ductile iron, Bronze Gland Nut: A194 2H Handwheel: Ductile iron, Carbon Steel, Stainless Steel Lock Nut: Stainless Steel Nominal Diameter: DN50 to DN300 Nominal Pressure: Class150 to Class2500, PN16 to PN64 End Connection: Flanged, Buttweld, Socketweld Dimension PN16 Unit: mm DN L D D1 D2 W N-фd B H 50 178 165 125 99 178 4-ф19 20 380 65 190 185 145 118 178 4-ф19 20 430 80 203 200 160 132 200 8-ф19 22 485 100 229 220 180 156 200 8-ф19 24 615 125 254 250 210 184 250 8-ф19 26 700 150 267 285 240 211 280 8-ф22 26 835 200 292 340 295 266 300 12-ф22 30 1010 250 330 405 355 319 360 12-ф25 32 1220 300 356 460 410 370 400 12-ф28 32 1435

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Rising Stem Ductile Iron Gate Valve

Rising Stem Ductile Iron Gate Valve

Rising Stem Ductile Iron Gate Valve Body: Ductile Iron Seat Ring: SS304, SS316 Wedge Face Ring: SS304, SS316 Wedge: Ductile Iron Stem: Stainless Steel Body Gasket: Graphite Bolts: Steel Nuts: Steel Bonnet: Ductile Iron Back Seat Bushing: Brass Packing: Graphite Packing Gland: Brass Gland Follower Bolts: Steel Gland Follower Nuts: Steel Gland Follower: Ductile Iron Yoke Bushing: Brass Yoke Bushing Nut: Ductile Iron Screw: Steel Handwheel: Ductile Iron Handwheel Nut: Ductile Iron Yoke: Ductile Iron Nominal Diameter: DN50 to DN300 Nominal Pressure: Class150 to Class2500, PN10 to PN64 End Connection: Flanged, Socketweld, Buttweld Dimension PN16 Unit: mm DN L D Dk D 0 n-фd b H 50 178 165 125 178 4-ф19 20 380 65 190 185 145 178 4-ф19 20 430 80 203 200 160 200 8-ф19 22 485 100 229 220 180 200 8-ф19 24 615 125 254 250 210 250 8-ф19 26 700 150 267 285 240 280 8-ф22 26 835 200 292 340 295 300 12-ф22 30 1010 250 330 405 355 360 12-ф25 32 1220 300 356 460 410 400 12-ф28 32 1435

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Rising Stem Carbon Steel Gate Valve

Rising Stem Carbon Steel Gate Valve

Rising Stem Carbon Steel Gate Valve Body: Carbon Steel Gate: Carbon Steel Stem: Stainless Steel Gasket: Graphite+Stainless Steel, PTFE Bolt: A193 B8 Nut: Carbon Steel Back Seat: Steel Bonnet: Carbon Steel Packing: Graphite, PTFE Gland: Steel Gland Flange: Carbon Steel Pin: Stainless Steel Eye Bolt: A193 B7 Gasket: Graphite+Stainless Steel, PTFE Nut: Carbon Steel Oil Filler: Steel Stem Nut: Ductile iron, Bronze Gland Nut: A194 2H Handwheel: Ductile iron, Carbon Steel, Stainless Steel Lock Nut: Carbon Steel Nominal Diameter: DN50 to DN300 Nominal Pressure: Class150 to Class2500, PN16 to PN64 End Connection: Flanged, Buttweld, Socketweld Dimension PN16 Unit: mm DN L D D1 D2 W N-фd B H 50 178 165 125 99 178 4-ф19 20 380 65 190 185 145 118 178 4-ф19 20 430 80 203 200 160 132 200 8-ф19 22 485 100 229 220 180 156 200 8-ф19 24 615 125 254 250 210 184 250 8-ф19 26 700 150 267 285 240 211 280 8-ф22 26 835 200 292 340 295 266 300 12-ф22 30 1010 250 330 405 355 319 360 12-ф25 32 1220 300 356 460 410 370 400 12-ф28 32 1435

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DETAILS
Rising Stem Cast Iron Gate Valve

Rising Stem Cast Iron Gate Valve

Rising Stem Cast Iron Gate Valve Body: Cast Iron Seat Ring: Bronze Wedge Face Ring: Bronze Wedge: Cast Iron Stem: Brass Body Gasket: Graphite Bolts: Steel Nuts: Steel Bonnet: Cast Iron Back Seat Bushing: Brass Packing: Graphite Packing Gland: Brass Gland Follower Bolts: Steel Gland Follower Nuts: Steel Gland Follower: Ductile Iron Yoke Bushing: Brass Yoke Bushing Nut: Bronze Screw: Steel Handwheel: Cast Iron Handwheel Nut: Ductile Iron Yoke: Cast Iron Nominal Diameter: DN50 to DN300 Nominal Pressure: Class150 to Class2500, PN10 to PN64 End Connection: Flanged, Socketweld, Buttweld Dimension PN16 Unit: mm DN L D Dk D 0 n-фd b H 50 178 165 125 178 4-ф19 20 380 65 190 185 145 178 4-ф19 20 430 80 203 200 160 200 8-ф19 22 485 100 229 220 180 200 8-ф19 24 615 125 254 250 210 250 8-ф19 26 700 150 267 285 240 280 8-ф22 26 835 200 292 340 295 300 12-ф22 30 1010 250 330 405 355 360 12-ф25 32 1220 300 356 460 410 400 12-ф28 32 1435

In Stock
DETAILS
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