Products Introduction

The series of valveuses three eccentric structure , when valve opened , the seat sealing surface separatesfrom the body sealing surface , to avoid the relative friction between seals ,greatly increasing the service life of valve . when valve closed , valve stemprovides the torque , to make between seals form enough seal special pressureand keep the reliable seal. Large stem diameter ca overcome seal bring advancereactions from pipeline vibration or pressure fluctuations , furtherly improvethe reliability of valve seal it's known that three eccentric sealing principlebelongs to a mandatory seal further turns stem , it will increase seal specialpressure , and sealing ring in 360 circle special pressure distribution is even,won’t appear local special pressure too high leads to materials plasticdeformation phenomenon.

Sanbora design and manufacture cryogenic butterly valve,body has twokinds of structure : flange connection , butt weld connection (with maintenanceorifice),  with the body of the overhaulorifice online service for trims , making maintenance work become usually simple, be helpful for the use of resources and save maintenance cost . This seriesof valve has good seal performance , high reliability , light weight , compactstructure , and no need worry about the phenomenon of body cavity pressureabnormal increase , is the ideal valve of transporting cryogenic medium , whichcan be widely used in liquefied natural gas ( LNG ) , aerospace and other areasof low temperature condition.

Production Design Specification

Design & Manufacture：API 609； BS 6364；ASME B16.34；MESC SPE 77/200； MSS SP-134； JB/T 12623

End to End ： API 609

Flange connection：ASME B16.5；ASME B16.25；HG；GB；JB；JIS；EN；DIN

Inspection & Test ：API 598/BS 6364； MESC SPE 77/200； MSS SP-134；JB/T 12622

Product Features

Anti0blow out stem design ,with live load andthe adjustable packing seal structure

Three eccentric structure, have no the relativefriction between seals, greatly prolongs the service life of valve

The body of the overhaul orifice can bring trimonline service, lower down maintenance cost

Heightening bonnet structure, preventing theeffect of low temperature medium by packing, avoiding stem not scratched

Lip-seal stem sealing ring provides a primaryseal with fugitive emission graphite packing design

Height adjustable drip board structure, to makethe cold insulation space is not restricted

Low leakage is available upon request, detailtechnical requirements please refer to the low leakage sample

Main Components Parts Combination

Note: Material can be optional upon request

Products Range

Nominal Size：4"~40"(DN100~1000)

Pressure Rating：ANSI/ASME150Lb~900Lb(PN16~150MPa)

Appliable Temperature：-196~-150 ℃

Operation：Manual ,Gear ,Electric, Pneumatic