Forged Steel Gate Valve Manufacturers
Class 800#, SWE, BWE, SCR, SCE, (FB) (RB)

A forged steel gate valve class 800 is a type of valve designed for high-pressure applications. It is constructed from forged steel, which is a material that has been heated and then shaped under high pressure to form a strong and durable component. The class 800 rating indicates that the valve is designed to withstand pressures of up to 800 pounds per square inch (psi).
The gate valve design features a gate or wedge-shaped disc that moves up and down within the valve body to control the flow of fluid through the valve. When the valve is fully open, the gate is completely removed from the flow path, allowing for unimpeded flow. When the valve is closed, the gate is lowered into position to block the flow path.
Forged steel gate valves class 800 are commonly used in industries such as oil and gas, chemical processing, and power generation, where high-pressure applications are common. They are designed to provide reliable and durable performance in challenging environments, and are often specified for use in applications where safety and reliability are critical.
Standard Material:
Sr. No. | Part Name | CS to ASTM | Alloy Steel to ASTM | Stainless Steel to ASTM |
---|---|---|---|---|
01. | Body | A105 | A350 LF2 |
A182 F5 | A182 F11 A182 F22 | A182 F9 |
A182 F304 | A182 F316 A182 F304L | A182 F316L |
02. | Bonnet | A105 | A350 LF2 | A182 F5 | A182 F11 | A182 F22 | A182 F9 | A182 F304 | A182 F316 | A182 F316 | A182 F316L |
03. | Studs | A193 B7 | A320 L7 | A193 B7 | A193 B7 | A193 B16 | A193 B16 | A193 B8 | A193 B8 | A193 B8 | A193 B8 |
04. | Gland | A182 F6A | A182 F6A | A182 F6A | A182 F6A | A182 F6A | A182 F6A | F-304 | F-316 | F-304L | F-316L |
05. | Gland Flange | A105 | A350 LF2 | A182 F5 A182 F11 | A182 F22 | A182 F9 | A182 F304 | A182 F316 | A182 F304L | A182 F316L |
06. | Nuts | A194 2H | A194 Gr.4 | A194 2H | A194 Gr.4 | A194 Gr.4 | A194 Gr.4 | A194 Gr.8 | A194 Gr.8 | A194 Gr.8 | A194 Gr.8 |
07. | Seat Ring | As Per Trim Material Combination | ||
08. | Wedge | As Per Trim Material Combination | ||
09. | Gasket | Spiral wound Stainless Steel Graphoil Filled | ||
10. | Packing | To Suit Service Conditions | ||
11. | Stem | As per Trim Material Combination | ||
12. | Yoke Sleeve | Al. Bronze bs 1400 Ab2C or Ni Resist to A439 D2 | ||
13. | Handwheel | DI A536 80-55-06 or MI/A338 | ||
14. | Name Plate | Aluminium / Steel | ||
15. |
Handwheel Retaining Nut |
Carbon Steel |
Body Material Combination with Body/Bonnet ASTMA F304H, F316H, F321, F347 also provided
Trim Material:
Trim No. | Seat Ring Face | Wedge Seat Face | Stem | Backseat Bush | Lantern Ring |
---|---|---|---|---|---|
01. | F6A/13% cr | F6A/13% cr | F6A/AISI410 | F6A/AISI410 | F6A/AISI410 |
02. | F304 | F304 | F304/AISI304 | F304/AISI304 | F304/AISI304 |
05. | STELLITE | STELLITE | F6A/AISI410 | F6A/AISI410 | F6A/AISI410 |
08. | STELLITE | F6A/13% Cr | F6A/AISI410 | F6A/AISI410 | F6A/AISI410 |
09. | MONEL | MONEL | MONEL | MONEL | MONEL |
10. | F316 | F316 | F316/AS1316 | F316/AS1316 | F316/AS1316 |
12. | 316+STELLITE | 316 | F316/AIS1316 | F316/AIS1316 | F316/AIS1316 |
13. | ALLOY 20 | ALLOY 20 | ALLOY 20 | ALLOY 20 | ALLOY 20 |
Test Pressure:
- Class : 800
- Shell Test (HYDROSTATIC) : 207 Bars | 3003 PSIG
- Seat Test (HYDROSTATIC) : 152 Bar | 2205 PSIG
- Seat Test (PNEUMATIC) : 6.9 Bar | 100 PSIG