ANSI 300 Flanged Cast Steel Gate Valve

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Rising stem Cast Steel (WCB) ANSI 300 Flanged Gate Valve.

  • Heat resistant primer coating.
  • Media temperature rated to 315°C @ 38 Bar
  • ASTM A216 WCB + 13Cr  wedge.
  • Face to face comply with ANSI B16.10.
  • Design in accordance with API 600.
  • Handwheel Operation, 304 Stainless Steel Fasteners.
Model DN Pressure Range (at Ambient Temp) Media Temp Weight (kg)
GVWR3-050 50 0 to 50 Bar 315°C at 38 Bar 23
GVWR3-065 65 0 to 50 Bar 315°C at 38 Bar 35
GVWR3-080 80 0 to 50 Bar 315°C at 38 Bar 50
GVWR3-100 100 0 to 50 Bar 315°C at 38 Bar 71
GVWR3-150 150 0 to 50 Bar 315°C at 38 Bar 144
GVWR3-200 200 0 to 50 Bar 315°C at 38 Bar 209
GVWR3-250 250 0 to 50 Bar 315°C at 38 Bar 322
GVWR3-300 300 0 to 50 Bar 315°C at 38 Bar 482

ANSI300 Flanged Carbon Steel WCB Gate Valve

Model NPS L D D1 D2 b f z-⌀d
GVWR3-050 2" 216 165 127 92.1 20.7 2 8-19
GVWR3-065 2-1/2" 241 190 149.2 104.8 23.9 2 8-22
GVWR3-080 3" 283 210 168.3 127 27 2 8-22
GVWR3-100 4" 305 255 200 157.2 30.2 2 8-22
GVWR3-150 6" 403 320 269.9 215.9 35 2 12-22
GVWR3-200 8" 419 380 330.2 269.9 39.7 2 12-26
GVWR3-250 10" 457 445 387.4 323.8 46.1 2 16-29
GVWR3-300 12" 502 520 450.8 381 49.3 2 16-32

All dimensions in mm unless specified

ANSI300 Flanged Cast Steel Gate Valve Construction

No Part Name Material
1 Body ASTM A216-WCB
2 Seat ASTM A105 deposited 13Cr
3 Wedge Disc ASTM A216-WCB deposited 13Cr
4 Stem ASTM A182-F6a
5 Bonnet Bolt ASTM A193 Gr.B7
6 Bonnet Bolt Nut ASTM A194 Gr.2H
7 Gasket Flexible Graphite/304
8 Bonnet ASTM A216-WCB
9 Back Seat Bushing ASTM A276-420
10 Packing Flexible Graphite
11 Yoke ASTM A216-WCB
12 Stem Nut Copper Alloy
13 Axletree E51100
14 Handwheel Cast Iron

Size 50mm to 300mm
Body Carbon Steel (WCB)
Seat Metal
Pressure 50 Bar @ ambient
Operation Handwheel rising stem

  1. What is an ANSI 300 Flanged Cast Steel Gate Valve, and what is its primary function?

    • An ANSI 300 Flanged Cast Steel Gate Valve is a type of industrial valve designed to control the flow of fluids in a pipeline by raising or lowering a gate (a wedge-shaped disc) to open or close the passage. Its primary function is to provide on-off control for the flow of liquids and gases in high-pressure applications.
  2. How does a gate valve differ from other types of valves, and where is it typically used?

    • Gate valves differ from other valves by using a gate to control flow. They are commonly used in applications where a straight-line flow with minimal pressure drop is required. These valves are often found in industries such as oil and gas, petrochemical, power generation, and water treatment.
  3. Why is cast steel commonly used as the material for these valves?

    • Cast steel is preferred for gate valves due to its excellent strength, durability, and resistance to high temperatures and pressures. It also provides good corrosion resistance, making it suitable for various industrial applications.
  4. What are the key components of an ANSI 300 Flanged Cast Steel Gate Valve?

    • The main components include the body, bonnet, gate, stem, seat, and actuator (if applicable). The gate moves up and down within the valve body to control flow, while the stem connects the gate to the actuator for manual or automated operation.
  5. What is the ANSI 300 pressure rating, and what does it signify in terms of valve performance?

    • The ANSI 300 pressure rating indicates that the valve is designed to handle pressures up to 300 pounds per square inch (PSI). It signifies the valve's ability to withstand and control fluid flow under such pressure conditions.
  6. How do I determine the appropriate size of a gate valve for my specific application?

    • Valve size selection depends on factors like the pipe diameter, flow rate, and system pressure. Consult engineering standards, flow calculations, and manufacturer guidelines to choose the right valve size for your application.
  7. Are there different types of gate valves available in the ANSI 300 pressure class?

    • Yes, there are various types of gate valves, including rising stem and non-rising stem designs, as well as flexible wedge and solid wedge configurations. The choice depends on specific application requirements.
  8. What are the advantages of using a cast steel gate valve over valves made from other materials?

    • Cast steel gate valves offer superior durability, high-temperature resistance, and robust performance in high-pressure applications. They are also suitable for a wide range of corrosive fluids and harsh environments.
  9. Can a gate valve be used for both on-off and throttling applications?

    • Gate valves are primarily designed for on-off applications. While they can be used for throttling in some cases, they are not as well-suited for precise flow control as globe valves or butterfly valves.
  10. Are there any limitations or considerations when using gate valves in high-pressure or high-temperature environments?

    • When used in extreme conditions, gate valves may require additional considerations, such as selecting appropriate materials, regular maintenance, and ensuring proper sealing to prevent leakage. It's essential to follow manufacturer recommendations and industry standards for these applications.