China plug valve manufacturer,factory and supplier-Plug valves

contact us



Address: NO.720, Suide Road, Jiading District,Shanghai, China.


General twin seal plug valve


  • Port size:DN50-DN900;2''-36''
  • Pressure:150LB ~ 900LB
  • Medium:Water,steam,oil,gas
  • Temperature :-40~180ºC
  • Body material:Carbon Steel, Stainless Steel,forged steel
  • Description:China general valve,plug valve manufacturer,factory and supplier.
China General twin seal plug valve manufacturer,factory and supplier for general valve with full bore and reduced bore.The action of two sealing vanes of General twin seal plug valve mounted on the cock is the key to the working principle of the double block and bleed valve.The two separate sealing vanes of General twin seal plug valve are compressed on upper and lower ends of the valve bore(double block], and when the valve is closed, the bleed valve will be opened to check the sealing effect(bleed].

General twin seal plug valve Specification:

Design standard :API 6D
Product scope :
1.Pressure scope :CLASS 150Lb~900Lb
2.Nominal diameter : NPS 2~36″
3.Body material:A105、LF2、F304、F316、F304L、F316L、F51,WCB、LCB、WCC、CF8、CF8M、CF3、CF3M、A890 4A etc.
4.End connection :RF RTJ BW
5.Drive device: Lever, Gear box, Electric, Pneumatic, hydraulic device, Pneumatic-hydraulic device

General twin seal plug valve feature:

1. In the ​General twin seal plug valve's opening/closing process, there is no contact between the sealing surfaces of the valve body and the vane, so the sealing surfaces suffer neither friction nor wear, contributing to the general twin seal plug valve's long service life and small opening/ closing torque;

2. For the ​General twin seal plug valve's maintenance, there is no need to remove the valve from the pipeline but just remove its bottom cover to replace the vane pair, thus very easy for the maintenance;

3. The ​General twin seal plug valve's body and plug are full-bore so that the medium can flow through the valve without any flow resistance.and it's also possible to clean the pipeline to overcome the shortcomings of the reduced port valve;

4. The ​General twin seal plug valve's cavity is plated with hard chrome and the sealing area is hard and smooth;

5. The elastic seal on the vane is made of the fluorine rubber and molded and formed in a groove of the vane surface.The fireproof metal-to-metal seal is used as the backing of the elastic seal;

6. The valve is provided with an automatic bleed device(optional) which can prevent the abnormal pressure rise of the valve cavity and check the valve's effect after the valve is completely closed;

7. The ​General twin seal plug valve's opening/closing indicator is in sync with the opening/closing position and can accurately display the valve's opening/closing status.