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

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.