Chemical Grade 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 Chemical grade flat gate valve meet your needs and do better.
• Check raw materials before production at Chemical grade flat gate valve.
• Spot checks are carried out during the processing of Chemical grade flat gate valve.
• 100% inspection of Chemical grade flat gate valve before shipment.
• Provide a one-year service for the products provided by Chemical grade 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: What is a chemical valve?

A: The chemical valve is an important accessory for controlling the flow of media on the chemical pipeline. The detailed principle and structural section view refer to the relevant information books. The valve is composed of three parts: the valve body, the opening and closing mechanism and the valve cover.

Q: What are the common problems?

A: 1. Flange and thread leakage at the connection of the pipeline;

2. Packing culvert leakage, waist pad leakage and valve stem can not move;

3. Between the valve core and the seat is not tightly closed to form internal leakage.

Q: Chemical valve selection principle.

A: Under normal circumstances, the chemical industry uses the flow channel as a straight-through valve, the reason is that the flow resistance is small, and the valve with the cut-off and open medium is usually selected, such valves are easy to adjust the flow as a control flow valve, ball valves and plug valves are suitable for reversing shunt, and the closing parts slide along the sealing surface with the wiping function of the valve. Such words apply to media with suspended particles. Usually we see the use of more chemical valves are globe valves, ball valves, gate valves, safety valves, check valves, plug valves and so on. Chemical valve medium mainstream with chemical substances, containing acid and alkali corrosion media.

Q: How to improve the abrasion resistance of the material?

A: To improve the abrasion resistance of the material, heat treatment or surface spray welding process can be used.

For example, the use of nitriding can significantly improve the abrasion resistance of 20Cr13, 410 and other materials. Plasma spray welding can be used for a variety of powder alloy materials (WF331, WF311,WF312, etc.), which is conducive to surfacing to form multiphase compound structure and improve abrasion resistance.

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