1)      Introduction

Butterfly valve is mainly composed of valvebody, shaft, disc, sear and drive mechanism (handle,worm gear and worm device, pneumatic or electric actuator), etc, on the drivingmechanism and disc drive shaft to achieve the purpose of the opening andclosing and control flow.

Which can be widely used in petroleum,chemical, food, medicine, paper making, water and electricity, shipbuilding,water supply and drainage, metallurgy, energy, such as the pipeline system,applicable to a variety of corrosive gas, liquid, half liquid and solid powdermedium..

2)      Characteristics

Simple and compact structure,smalland light, easy transportation, installationand disassembly.

90°opening and closing, switch is quick. Minimized operating torque,energy saving.

Good sealing performance, long service lifeand can achieve zero leakage.

Choose different parts material, can beapplied to a variety of media.

Flow characteristic similar to linear,adjust good performance.