Single-plate Flat Gate Valve with Diversion Hole

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Technical Specification
Product name	Single-plate flat gate valve with diversion hole
Design reference	API	ASME
Design standard	API 6D	ASME B16.34
Structural length	API 6D	ASME B16.10
Flanged ends	ASME B16.5、ASME B16.47	ASME B16.5、ASME B16.47
Butt-welding ends	ASME B 16.25	ASME B 16.25
Test & inspection	API 6D	API598
Packing:	To be packed in suitable wooden cases as per client's option or customized
Shipping & Delivery:	20-25 days lead time; deliver by ship from Ningbo port or Shanghai port
Closure type	Single-plate flat gate valve
Notes: Serial valve connecting flange and butt-welding terminal size can be designed at customers'request. The material of the main parts and sealing surface of the valve can be designed and selected according to the actual working conditions or the special requirements of users.

 

 

1. Low flow resistance. The medium channel inside the valve body is straight through, the medium flows in a straight line, and the flow resistance is small.

2. Water hammer phenomenon is not easy to produce. The reason is that the opening and closing travel is longer and the closing time is long.

3. The medium can flow to either side in any direction, easy to install. Both sides of the gate valve channel are symmetrical.

4. Simple structure, easy maintenance, good manufacturing process, wide range of application.

 

 

• 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 Single-plate flat gate valve with diversion hole meet your needs and do better.
• Check raw materials before production at Single-plate flat gate valve with diversion hole.
• Spot checks are carried out during the processing of Single-plate flat gate valve with diversion hole.
• 100% inspection of Single-plate flat gate valve with diversion hole before shipment.
• Provide a one-year service for the products provided by Single-plate flat gate valve with diversion hole 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: There are several sealing pairs of valves, whether they are inlet seals or outlet seals?

A: The disadvantage is that the sealing pair has two sealing surfaces, and the conventional is the exit seal.

 

Q: When the valve is closed, can it automatically remove the high pressure in the inner cavity?

A: When the valve is closed, the high pressure in the inner cavity can be automatically removed to ensure the safety of use.

 

Q: Can it be used all day?

A: Fully enclosed structure, good protection performance, can adapt to all-weather requirements.

 

Q: There is no stroke indication of the valve?

A: The valve is provided with an indicator rod or an observation window to indicate the opening and closing of the valve.

 

Q: Why should the flange holes be arranged in the middle span?

A: The purpose of the span is to make the bolt more uniform when it is connected with the external nozzle by the external load, and the operation space is large, which is conducive to the fastening operation. There is also a very important reason is that when the medium in the tube leaks outwards through the gasket, the medium will not flow directly to the bolt, especially in the case of strong corrosive media on the bolt!

 

Q: Which media have forbidden copper requirements?

A: Acidic environment and in the air will corrode copper because of the formation of air galvanic cells, so copper sulfate ammonium carbonate, ammonium oxide, if in contact with copper and in a humid environment will "rust" generally heated with concentrated sulfuric acid or nitric acid corrosion of copper, acidic environment.

 

Q: What materials are suitable for valve stem nuts? Why?

A: Copper, high nickel cast iron, steel. Sufficient strength, low friction, low torque, corrosion resistance.

 

Q: What is the main purpose of sulfur resistance requirements for materials?

A: Prevent stress cracking and stress corrosion cracking of sulfides.

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