Manual Pinch Valve

Product Description

Pinch valve manufacturers offer a wide range of design, performance, quality and service capabilities. Some sell only in their domestic markets, while others service customers on a global basis. As with all valves, a thorough understanding of process conditions is essential to selecting the correct pinch valve design and elastomer tube (also referred to as rubber sleeve or rubber muff) to obtain full value and longevity from this versatile product. When problems with conventional pinch valves arise, most can be attributed to elastomer failure as the sleeve is stretched and stressed during closure. This often results in the cutting of the sleeve around the pinch area, or incomplete closure resulting in high velocity wear and shortened sleeve life. In some cases, users are simply unaware that specialized elastomer constructs with reinforcement are required for negative pressure/vacuum conditions/good life of sleeve (***** to avoid pump damage from sleeve collapse on suction side) or for throttling control (reduced port/trim).