Product introduction
It is applicable to transport a variety of different types of industrial pipeline liquid and gas (including vapor), especially for the strong corrosive medium such as sulfuric acid, hydrofluoric acid, phosphorus acid, chlorine, alkali, aqua regia etc.
Performance parameter
Design specification: GB/T 12238/API 609/MSS SP-67
Drive mode: Manual and worm gear drive
Connection: Flange connection, wafer type
Nominal diameter: (DN) 15-1200mm
Nominal pressure: (PN) 1.0MPa, 1.6MPa
Applicable temperature: -50~180℃
Driving mode
Manual, worm gear drive, pneumatic, electric
Structure characteristic
1、Center line-type butterfly valve makes the whole butterfly plate and valve seat concentricity (central line) within 360° circumference. It has bi-directional sealing function and pressure and flow can be adjusted freely
2、Four loading elastic sealing can ensure the zero leakage in the inside and outside of the valve
a:he end surface of the shaft is adopted elastic O-ring and the combination of rigid gasket & elastic rubber blanket on the shaft shoulder
b:Shaft axis is adopted the combination of O-ring and metal bushing
c:Valve seat is embedded in a valve body groove with a elastic strip
3、Using elastic gasket to position accurately and has a simple structurer( Using O-ring is a security measures to prevent accidental leakage)
4、Lining integration of valve seat and valve body. When the valve gate is started Teflon valve seat and lining plastic butterfly valve plate will contact with medium. Valve gate can be bored the corresponding lining material’s corrosion and after using four loading sealing structure and adding elastic gasket of SI rubber with good temperature resistance and ageing resistance on the sealing surface zero leakage can be entirely achieved.
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