Fully welded ball valve

FREE-Valve's 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 ,alkaili etc

Driving method : electric ,handle,worm gear etc .

Application industry:

centralized heating, coal gas pipe, waste gas treatment system, heat supply system