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Carbon Steel Forged Steel Ball Valve / Full Welded Ball Valve DN100-DN1200,extented stem,BW add Pipe,Extented Stem ball valve service underground pipeline
Quick Detail:
Size & Pressure :
150# DN100-DN1200
300# DN100-DN1200
600# DN100-DN1200
900# DN100-DN900
1500# DN100-DN500
2500# DN100-DN300
Bore: FULL BORE,REDUCE BORE
End: RF,RTJ,BW,
Body Material: forged A105N,LF2,F6A,F304,F316,F51,F53,F55 and others.
Extented Stem ball valve service underground pipeline
Description:
FULL WELDED BALL VALVE
1.Bow-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.
2.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
Carbon Steel Forged Steel Ball Valve / full welding Ball Valve DN100-DN1200 extented stem
