Rising Stem Gate Valve

Product Introduction

The closure element of a wedge gate valve is a wedge-like shape. The purpose of using a wedge shape is to increase the auxiliary sealing load, so that metal-sealed wedge gate valves can seal under both high and low medium pressure. In this way, the potential sealing degree that a metal-sealed wedge gate valve can achieve is higher than that of an ordinary metal-sealed parallel gate valve.

product advantages

1. The sealing principle of a wedge gate valve relies on the tight engagement between the two sealing surfaces on the wedge gate and the two sealing surfaces on the valve body.

2. The valve body of a wedge gate valve is equipped with a guiding mechanism to prevent the gate disk from rotating when opening or closing, thus ensuring that the sealing surfaces are properly aligned. This design ensures that the gate disk does not contact the valve seat before reaching the closed position, thereby reducing wear on the sealing surfaces.

3. The use of a wedge gate aims to increase the auxiliary sealing load so that metal-sealed wedge gate closing valves can seal both high and low medium pressures. When, turning the valve stem clockwise makes the gate’s sealing surface and the valve body’s sealing surface closely fit to achieve sealing condition. 4. Wedge gate valves include: Manually/pneumatically operated wedge gate valves, resilient-gate wedge gate valves, high-performance wedge gate valves, special-material wedge gate valves, fine-adjustment wedge gate valves, stabilized-sealing wedge gate valves.

• Design Standard: API 600 / API602 / API 6D

• End Flange: ASME B16.5/JIS B2212/DIN 2543

• Face to Face: ASME B16.10 / JISB2002 / BS EN558-1

• Inspection and testing: API598

• Petrochemical industry‌: Gate valves have excellent sealing performance for high-temperature and high-pressure applications, and are often used in gas and liquid transmission pipelines.

• Thermal power generation‌: Gate valves are used in boiler feed water and steam turbine control systems because of their advantages of excellent sealing and small flow resistance.

• Nuclear industry‌: Gate valves can withstand strong corrosion, high temperature and high radiations, which are often used in nuclear industries such as nuclear power plants.

To sum up, gate valves have significant advantages in cutting off and regulating medium flow, and are suitable for a variety of industrial scenarios, especially in high-temperature, high-pressure, and corrosive environments.

Rising Stem gate valve

1) Design Standard: API 600.API602.API6D.DIN 3352.GB/T12234

2) End Flange: ASME B16.5.JIS B2212.DIN 2543,GB9113

3) Size: 1/2"-24"

4) Pressure: 150lb~1500lb

5) Temperature: -196℃~425℃

6) Materials: Carbon steel,Stainless steel

7) Suitable Medium: Water,Oil,Gas,Steam

Q1: Do gate valves have low fluid resistance?

A1: The medium channel inside the gate valve body is straight, and the flow direction does not change when the medium flows through, so the fluid resistance is small‌.

Q2: Is the opening and closing torque of the gate valve large?‌

A2: When the gate valve is opened and closed, the movement direction of the gate plate is perpendicular to the direction of medium flow, which is more labor-saving than the gold valve.

Q3: Is the flow direction of gate valve medium restricted?‌

A3: The medium can flow in any direction from both sides of the gate valve, which is suitable for pipelines where the medium flow direction may change.

Q4: Is the gate valve sealing performance good?

A4: When fully opened, the sealing surface is less eroded, it is suitable for high-pressure environments.