Production Introduction
The all-weldedball valve is an open-close type control valve. The series of ball valvesadopts all-welding, and the forged valve body has a uniform structure and grainstructure, thereby avoiding shrinkage holes and pore defects of the cast valvebody.
The seatsealing structure adopts multi-stage sealing (patent) technology, the valve hasdouble blocking and venting function, and is equipped with a secondaryemergency sealing grease structure design to ensure leakage of the valve seatand the stem.
These valves offer increased reliability,tightness, higher strength and longer life, and are used in a wide range ofoil, gas and delivery systems.
Product Design Specification
Design&Manufacturing:API6D;GB/T 19672;GB/T30818
End to end :API 6D;GB/T19672
End connection :ASME/ANSI B16.5 & B16.47a & B16.25;GB;JB;HG;JIS;DIN
Inspection& Test :API 6D ;GB/T19672;GB/T 30818
Product Features
The material is completely forged, and the middle part is welded to prevent leakageof the medium.
Fireproof design in accordance with API 607 / API 6FA
Full bore or reduced diameter design
Anti-staticdesign, in line with API6D
The support plate fixes the ball to ensure the pure torque of the stem
Medium cavity over pressure automatic venting
Blow-out proof stem, valve stem multi-stage seal
Seat and stem with emergency grease seal construction and device
Floating double seat, multi-stage sealing seat structure
Flexible switch, easy to operate, long life, maintenance free
Double blocking double bleed (DBB) structure
Valve stem lengthened buried design
Optional double piston effect seat
Mechanical limit of valve switch position
Combination Of Material
Shell | Ball | Seat Ring | Stem |
CS (A105,A350,LF2,A694) | CS+ENP SS DSS(A182 F51) | CS+ENP SS DSS(A182 F51) | CS/AS+ENP SS DSS(A182 F51) |
SS&DSS (A182 F304,F316,F316L,F51) | CS+ENP SS DSS(A182 F51) | CS+ENP SS DSS(A182 F51) | CS/AS+ENP SS DSS(A182 F51) |
Product Range
Nominal Diameter:2"~56"(DN50~DN1400)
Pressure Range:ANSI/ASME150Lb~2500Lb(PN16~420Mpa)
Suitable Temperature:-46~150℃
Operation:Manual ,Gear Box, Electric, Pneumatic, Hydraulic ,Gas-liquidlinkage,
Electro-hydraulic linkage.