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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 installed and less maintenance work .
Benefits
1.Valve body material is the same as the pipe material , so they will not occur transformation due to unbalanced stress .
2.Face to face dimensions can be made according to customer requirement.
3.Material of valve seat is made up of PTFE+20%C sealing 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.
4.The ball body has a 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
Material of 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 gas pipe, waste gas treatment system, heat supply system
