Worm Fully welded ball valve
FREE-Valve’s Worm Fully Welded Ball Valve are widely used in almost all the industry.Compared to the general casting ball valve,fully welded ball valve have a highly performance and longer life time .It was widely used in city gas ,city heat supply ,oil chemical industry,ship building ,steel ,power plant etc . Fully welded ball valve can be reliable run in the long time ,easy to be installedand less maintenance work .
Benefits
- Valve body material is the same as the pipe material , so they will not occur transformation due to unbalanced stress .
- Face to face dimensions can be made according to customer requirement.
- Material of valve seat is made up of PTFE+20%Csealing ring and metal sealing,which can adapt to the change of pressure and temperature,So the leakage will not occur during the pressure and temperature range.
- The ball body hasa highly machining precision due to the tracking of computer detector,so the ball valve was shut off/shut on conveniently.
Valve Specification
Type : FRQ61FC,FRQ361FC
Size Range:NPS2~NPS48, DN50~DN1200
Pressure Range:Class150~Class600,1.6MPa~4.0MPa
Materialof valve body: A105,F304,F316
Connect Method :welding
Work Temperature:-29℃≤t≤180 ℃
Design standard:ASME B16.34,API6D
Test and Inspect:API598
Face to Face:ASME B16.10
Medium:Water ,oil ,gas ,acid ,alkaili etc
Driving method: electric ,handle,worm gear etc .
Application industry:
centralized heating,coal gaspipe, waste gas treatment system, heat supply system
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