1. What is a Gate Valve?
Gate Valve is an industrial valve designed to completely close or open the flow in a piping system. When the valve is open, the fluid flow is unobstructed; when the valve is closed, the valve disc completely blocks the fluid, ensuring safe and efficient operation.
Gate valves are used in many industries: water treatment, steam, oil and gas, chemicals, food and many other fields.
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2. Gate Valve Structure
A standard gate valve typically includes:
Valve body : Pressure resistant and directly connected to the piping system.
Valve disc : Open/close to control flow.
Valve stem : Connected to the valve disc, transmits motion from the handwheel.
Valve cover : Covers and protects the inside of the valve.
Steering wheel : Controls operating operations.
Sealing gasket : Prevents fluid leakage.

3. Advantages of Gate Valves
Fully open/close, high tightness.
Maximum open flow, no significant pressure drop.
Simple structure, easy to install and maintain.
Durable material, resistant to high pressure and temperature.
4. Applications of Gate Valves
Gate valves are commonly used in:
Water & wastewater treatment industry .
Steam and heat systems .
Petroleum and chemical industry .
Food manufacturing & processing plant .
Heavy industries : cement, metallurgy, energy.
5. Featured Product: Flanged Steel Gate Valve PN40 – SON Industrial
SON Industrial offers PN40 flanged steel gate valves with high pressure and temperature resistance, suitable for demanding industrial systems.
Specifications:
Model : Steel gate valve PN40
Size : DN40 – DN300
Valve body material : Steel
Connection : Flange PN40
Working pressure : PN40
Working temperature : –29°C to 425°C
Conclude
Gate valves are important devices that help control fluids in many industries. With the ability to withstand high heat and pressure, SON Industrial’s PN40 flanged steel gate valve is the optimal choice to ensure stable, durable and safe system operation.