Alloy Steel Flat Gate Valve

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1. It has the advantages of simple and compact structure, reasonable design, reliable sealing, light and flexible operation, small size, smooth channel, low resistance, easy installation and easy disassembly.

2. When the valve is fully opened, the flow resistance coefficient is very small, and the valve will eliminate the function of the valve disc and the dirt on the sealing surface every time the valve is opened and closed.

3. The packing is made of flexible graphite ring and graphite packing, reliable sealing, light and flexible operation.

4. It is widely used in oil and water steam pipelines such as petrochemical industry and thermal power plants to connect or cut off the intermediate quality of pipelines. The sealing surface of the opening and closing device has compact structure and reasonable design.

• Our service tenet is customer first, service first. We will provide more accurate and efficient manufacturing and service according to customer requirements.
• We have a professional QC team to ensure that the products in Alloy steel flat gate valve meet your needs and do better.
• Check raw materials before production at Alloy steel flat gate valve.
• Spot checks are carried out during the processing of Alloy steel flat gate valve.
• 100% inspection of Alloy steel flat gate valve before shipment.
• Provide a one-year service for the products provided by Alloy steel flat gate valve to create value for customers.

• We have complete production technology and management.
• As a manufacturer our price is also good.

To be packed in suitable wooden cases as per client's

Q: Does the force applied to the handwheel need to be large?

A: No, the force applied to the handwheel will be ≤360N.

Q: What are the advantages of alloy steel compared with carbon steel?

A: Ordinary low-alloy steel has the following advantages over similar carbon steel:

1. High strength, good plastic toughness. Due to the action of alloying elements, its strength is 25%--50% higher than that of ordinary carbon steel, the elongation is 15%--23%, and the impact toughness at room temperature is higher than 60J/cm².

2. Good weldability. Due to the low carbon content and small alloying element content, its plasticity is good and its hardenability is low, and it is not suitable for quenching microstructure or cracks at the weld.

3. Good cold and hot pressure processing performance. Because of its good plasticity and small deformation resistance, it is not easy to crack after pressure processing.

4. Good corrosion resistance. It has higher corrosion resistance than carbon steel under various atmospheric conditions.

Q: What is the difference between alloy steel and carbon steel?

A: 1. Alloy steel has a wider range of applications, including aviation, aerospace, metallurgy, machinery manufacturing, petroleum, chemical and other fields.

2. Carbon steel is mainly used in low-end machinery, construction, manufacturing, light industry and other fields.

Q: How is the diameter of the handwheel determined?

A: The diameter of the valve handwheel is selected mainly according to the maximum torque on the valve stem or valve stem nut and the circumferential force that can be applied to the handwheel.

Q: How many types of valve covers are available?

A: Valve covers are usually divided into integral and separate types. The integral valve cover is not only a part of the pressure housing, but also connected with the valve stem nut as a support for the valve stem. Integral valve covers are usually used for small and medium diameter valves. The valve cover of the large-diameter valve is usually divided into two parts, and the part connected with the valve body is called the separate valve cover; The part connected to the stem nut is called the support.

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