Track ball valve

SONY DSC

Product Introduction

Track ball valve is a kind of on-off valve, with guide groove and pin installed in the stem , Its ball lower shaft adopts sphere construction and supported by valve bottom and the ball upper end is equipped with limit pin , matching up with the stem pin . The guide pin installed with yoke , contacted with the guide groove . When opened the valve through hand wheel or actuator , The stem is  rising along with guide groove , and ball swings the direction which separates from the seat in action of stem pin . When stem rises to  n the corner of guide groove , Stem drives ball rotating and continues to lift till valve is fully opened in action of guide pin . the  movement track of stem and ball is just on the contrary when valve closing . This track ball valve is full-port , with low flow resistance  and reliable sealing performance which widely used in solid particle medium , such as Coal Water Slurry , Black Water etc.

Design Specifications

Design&Manufacturing：ASME B16.34、API 608、GB/T 12237

End to end：ASME B16.10、GB/T 12221

End Connection ：ASME/ANSI B16.5；ASMEB16.25&HG20615；GB；JB；JIS；BS；DIN

Inspection & Test ：ASME B16.104；API 598；GB/T 26480

Product Design Features

Swing type Ball, Friction-free opening and closing

Single-seat design to avoid the risk of abnormal high pressure in the middle cavity of double seated valve

Hardening Treatment on ball and seat surface to achieve good sealing performance in harsh working condition

Top entry design ,Online maintenance

Low torque feature for choosing economic actuator

Blow-out proof stem

Extended bonnet design to meet the safety requirements of packing in cryogenic service

Injectable packing design to achieve the on-line maintenance of sealant injection on stem packing

Material

Product Range

Nominal Diameter：2”~28”（DN250~700）

Pressure Range：ANSI/ASME150Lb~2500Lb(PN16~420Mpa)

Suitable Temperature：-29~538℃

Operation ：Manual ,Bear Box, Electric, Pneumatic