Pinch valve technology, design features and quality employed to manufacture Pinch valves range from conventional design suppliers to those offering highly engineered designs, a comparison of features among major manufacturers of pinch valves from India and around the globe helps in the decision making process.

Major improvements with continuous R & D in making rubber sleeve resistance to abrasion, chemicals, temperature, Corrosion & high pressure. Due to this Pinch vales are now suitable for most tough applications & one of the reasons for increased usage is the availability of gear operated pinch valve, chain operated pinch valve, pneumatic On/Off pinch valve and throttling control pinch valves  along  with normal manual operated pinch valves. Other improvements include the automatic sensing  rubber sleeve wear  / failure as well as double layered reinforcement for extended rubber sleeve life.  Specialized constructs like having reinforced lugs on either side of the sleeve also allows for operation on the suction side of a pump and in vacuum conditions without collapse.

The initial purchase price of pinch valve is just one portion of the total ownership cost of the valve. As abrasive and corrosive media wear the rubber sleeve ( which is also called as pinch valve liner, rubber muff, rubber tube or pinch valve hose) it must be replaced. Elastomer quality, price, and frequency of pinch valve sleeve replacement are a major part of maintenance & costing, which also includes removal of damage rubber sleeve and reinstalling with a new one. The downtime, repair, product loss, contamination, clean up, and other factors per each sleeve replacement time. Accordingly, paying a bit more for quality of fantastic reinforced rubber sleeves molded with actual virgin polymer compound for simply avoiding the recurring maintenance cost.

Pinch valves are full bore valves having designs suited to industrial and municipal services in India and worldwide where abrasive, corrosive, clogging slurry, sludge, liquid or bulk solids are processed. Pinch valves offer a cost-effective alternative to other metal - metal ball, plug, gate, and diaphragm valves that do not offer comparable mechanical advantage, chemical resistance, effective shut-off, or 100% full flow like in case of pinch valves.

Pinch valve users should always understand the process conditions to selecting the correct Pinch valve rubber sleeve to obtain full value and life. When problems with Pinch valves arise, It is only because of  elastomer failure as the rubber sleeve is stretched and stressed during closure. This often results in the cutting of the rubber 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 rubber sleeves with good quality double reinforcement are required for negative pressure / vacuum conditions and good life of sleeve or to avoid pump damage from sleeve collapse on suction side.