Products
PQ340H Eccentric Half-ball Valve
Applications:
Double eccentric half-ball valve is the best device for transporting pulverized coal injection, air, fluid mixed with particles and solid mixed with powders mediums. It is a special valve used in refinery, mining manufacturing. The valve is suitable for middle and low pressure pipelines of petroleum, chemical industry, power, textile, paper-making, water conservancy, also it is used for transporting and shut-off and controlling the flows of sewage treatment, steam, air, coal gas, sand slurry and other slightly polluted fluid mediums.
Specifications:
Size: DN 40~600
Pressure: 0.6 Mpa~4 Mpa
Applicable temperature: -29℃~540℃
Applicable medium: fresh water, sea water, sewage, slurry, steam, gas, oil, etc.
Features:
Eccentric half-ball valve resolved the problem that valve could not be tightly closed caused by the slurry-like, liquid mixture, dust and other mediums deposited, fouled, obstructed in pipelines.
It is convenient to starting or closing the valve. The ball is separated from shell when starting, the torque is low, so that it is flexible to rotating. The shearing force generated from ball and seat could sweep of the dirty on sealing surface, so that valve could start or close fluently, the safety coefficient is high, the sealing performance is excellent.
The eccentric structure of sealing surface makes the ball surface automatically compensate abrasion so as to keep sealing performance and prolong service life.
