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zhejiang Moenda Valves Co.,Ltd

valves, ball valves, globe valves, globe valve, ball valve, Manufacturer and Supplier - China

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Information for Buyer

  • zhejiang Moenda Valves Co.,Ltd
  • Business Type: Manufacturer
  • OEM Service: No
  • Register Time: 2012-02-02

  • (Lishui/wenzhou, China) Map
  • Phone: +86/577-66991859
  • Contact Person: Zhejiang Moenda Valves Co.,Ltd

Products Detail

trunnion mounted ball valve (07)

  • Business Information:

Product Feature:

Casting steel trunnion mounted ball valve

Blow-out proof stem : For the purpose of preventing the stem from flying off resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In addition,in order to prevent leakage resulting from burnout of packing set of the stem in a fire,thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body.Thus an inverse seal seat is formed which will prevent leakage and avoid accident.



Lock: Locks can be used to lock the manual valve when it is fully open or closed so as to prevent non-working personnel from pulling the handle which may result in misoperation of valve.It can also avoid opening or closing of valve resulting from the shock from pipelines or unpredictable factors that may cause an accident.For working pipelines such as combustible and explosive oil,gas and chemical medium,or for field piping site,the locking mechanism is especially useful.



Anti-fire safe design: When the trunnion ball valve be used normally,its sealed by seat and ball surface,seat retainer sealed by O-ring and body,this is soft sealed and reliable sealing.When the seat and O-ring are burnt,the seat retainer and body will be sealed by expanded graphite.Thus act anti-fire safe purpose.



Anti-static device: In order to prevent friction among ball,stem and PTFE that generates static electricity which may light the combustibles and explosives that cause an accident,in this ball valve,static-conduction spring is set between the stem and the ball,the stem and the body.Thus static electricity is conducted to ground and system safety is secured.



Free leakage of body Sealed construction: The connective position of valve body and bonnet is double sealed by gasket and O-ring,on this base,such factors as fire,high temperature,shock and uneven opening or closing of the torque all cannot induce external leakage.

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