Butt Welded Forged Steel Gate Valve

Butt Welded Forged Steel Gate Valve

Introduction
Forged steel butt weld end gate valve is a kind of most common open/close valve. It is mainly composed of valve body, disc, bonnet, valve gland, gasket, bolt and nut. This forged steel gate valve uses disc to connect or cut off medium in pipeline. Disc functions like a sluice gate to connect or cut off media, so it is called gate valve or sluice valve. The on-off component of gate valve is valve disc. The movement direction of disc is perpendicular to the flowing direction of fluid. Gate valve can only be opened or closed fully. Butt weld end gate valve can be widely applied as fluid regulating and intercepting equipment in various pipelines, such as tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and energy pipeline systems.

Classification
Forged steel threaded gate valve can be widely applied as fluid regulating and intercepting equipment in various pipelines, such as tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and energy pipeline systems.

Advantages of Forged Steel Butt Weld End Gate Valve
1. Sealing materials we applied to manufacturer forged steel gate valve are wear resistant.
2. Valve seat is replaceable, which makes maintenance more simple and convenient.
3. Twice shot blasting processing makes the forged steel valve look fine and smooth.
4. Numerical control processing is utilized on valve disc.
5. Valve body adopts precision casting technique.
6. Small torsion is needed to open butt weld end gate valve.
7. Lifelong technology service is provided for all our products.
8. Guarantee period of our products is 18 months.

Pressure: CLASS900~2500 PN16.0~42.0
1. Welded Bonnet/Pressure Sealed Bonnet
2. Reduced Port
3. Solid Wedge Gate
4. Flange Ends/Butt-Welding Ends

Technical Specification of Forged Steel Gate Valve

Technical Specification ASME/API GB/JB
Design Standard ASME B16.34/API600 GB/T12234 GB/T12224
Pressure-Temperature Rating ASME B16.34 GB/T12224
Face-Face ASME B16.10 GB/T12221 JB/T97-95
Flange Ends ASME B16.5 GB/T9113JB/T82.1~82.4
Buttwelding Ends ASME B16.25 GB/T12224
Inspection & Test API598 JB/T9092

Material List for Main Parts of Butt Weld End Gate Valve

  No. Part Name ASTM
Carbon Steel Tailess Steel Alloy Steel
1 Body A105 LF2/LF3 A182 F304 A182 F11/F22
2 Seat A182F6a A182F6a A182 F304 A182 F11/F22
3 Wedge A182F6a A182F6a A182 F304 A182F6a
4 Stem A276-410 A276-410 A276-304 A276-410
5 Gasket Graphite+304
6 Sealing Ring Graphite
7 Yoke A216-WCB A216-WCB A351 CF8 A216-WCB
8 Bonnet A105 LF2/LF3 A182 F304 A182 F11/F22
9 Bolt A193 B7 A320L7 A193 B8 A193 B16
10 Packing Graphite
11 Stem Bushing A276-410 A276-410 A276-304 A276-410
12 Gland A216-WCB A216-WCB A351 CF8 A216-WCB
13 Eye Blot A193 B7 A320 L7 A193 B8 A193 B7
14 Stem Nut A276-410
15 Hand Wheel A197 or A47-32510

Main Dimensions & Weight

Pressure Size Main Dimension of Butt Weld End Gate Valve   Weight(kg)
mm in. d LRF LBW LRTJ H W
WB PB WB PB
CLASS900 PN16.0 15 1/2 10 216 216 216 197 321 180 9.8 11.5
20 3/4 13 229 229 229 211 321 180 9.7 11.2
25 1 19 254 254 254 238 321 180 9.5 10.8
32 1-1/4 24 279 279 279 257 380 200 17.5 18
40 1-1/2 40 305 305 305 276 414 200 21.6 22
50 2 50 368 368 371 320 502 300 42.7 44
CLASS1500 PN26.0 15 1/2 10 216 216 216 197 321 180 9.8 11.5
20 3/4 13 229 229 229 211 321 180 9.7 11.2
25 1 19 254 254 254 238 321 180 9.5 10.8
32 1-1/4 24 279 279 279 257 380 200 17.5 18
40 1-1/2 40 305 305 305 276 414 200 21.6 22
50 2 50 368 368 371 320 502 300 42.7 44
CLASS2500 PN42.0 15 1/2 10 264 264 264 197 321 180 12.3 13
20 3/4 13 273 273 273 211 321 180 12.1 12.7
25 1 19 308 308 308 238 321 180 11.8 12.5
32 1-1/4 24 349 349 352.2 257 380 200 20.9 21.8
40 1-1/2 40 384 384 387.2 276 414 200 27.5 29.3
50 2 50 451 451 454.2 320 502 300 53.3 55.4
Note: H means the height when valve is fully opened.

Maintenance of Butt Weld End Gate Valve
1. Hand wheel, handle and transmission mechanism are not allowed for lifting things. Collision of them is strictly prohibited.
2. Please open the bypass valve in advance before opening the valve to balance the pressure differential and to decrease opening force.
3. If the valve opens and closes frequently, please lubricate it regularly (at least one time every month).
4. The valve for long-term storage should be checked regularly. The surface of the valve must be clear of dirt and coated with anti-rust oil.

Payment, Package and Delivery
1. Products can be paid by T/T, D/P, D/A, L/C or according to your requirement.
2. Forged steel butt weld end gate valves are packaged by standard exported wooden cases.
3. Our forged steel gate valves are transported by sea, railway or air.

Lanteky Valve Industry a professional manufacturer of forged steel gate valves in China. Our main products include ball valves, gate valves, globe valves, check valves, strainers and forged steel valves. Our butt weld gate valves are exported to Brazil, Argentina, Mexico, Canada, Russia, Kazakhstan, Indonesia, South Korea, Japan, Australia, Bulgaria, Spain, France, England, Sweden, Dubai, Arab, Pakistan, South Africa, etc.

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