Check valves in pipelines permit liquids and gases to flow one way in a single direction. The correct flow forces the check valve open whilst reverse flow causes the valve to close. Check valves open at a designed minimum flow, or cracking pressure, for the valve to begin to operate.
Proco Products is a leading check valve manufacturer and supplier designing cost effective check valves to prevent the back flow of fluids and gases. Check valves protect systems from pressure surges damage to pumps and pipework and help efficient operation.
Check valve suppliers provide several types of valves, these include ball valves or metal flap check valves in which a disc pivots to prevent reverse flow. Proco Products supply rubber check valves which have the advantage of not only being durable and effective, but also reduce the likelihood of common maintenance problems seen in metal valves. Rubber duck bill check valves use a rubber diaphragm which remains closed until fluid or gas flow pressure is applied to open it. Unlike their metal swing or flap check valve counterparts, rubber check valves cannot rust, seize, or bind, typically increasing reliability and longevity. Similarly, rubber check valves do not suffer from mechanical wear, a factor which can negatively influence check valves manufactured from other materials.
A rubber check valve is a fully passive device requiring neither maintenance nor any source of outside power or manual assistance to operate. Proco Products manufactures rubber check valves to be quickly interchangeable with flap type check valves which eliminates seizing, rusting or binding in unwanted positions. Rubber check valves are made to work with ultra-quiet operation, do not warp or freeze and are designed to prevent standing water and eliminate trapped solids.
Proco Products manufactures check valves for industries such as water and wastewater, pulp / paper and mining. We supply check valves for use in sewage treatment plants, outfalls, tidal and pre-existing pipelines such as manholes and vaults.
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Flanged Rubber Duckbill Check Valve
In-Line Flanged Rubber Duckbill Check Valve
Sleeved Rubber Duckbill Check Valve
Slip-in Style In-Line Rubber Duckbill Check Valve
Proco Products are leading expansion joint manufacturers with an extensive inventory of expansion joints for piping and ducting systems. Our movement expansion joints are specially designed to have the ability to protect your equipment against a variety of stressors while also being low maintenance and durable for maximum efficiency. Proco Products are specially designed for industrial and commercial installations using pumping, piping or ducting which requires expansion or movement joints to deal with thermal expansion, vibration or ground movement. With a variety of designs in rubber, stainless steel or polytetrafluoroethylene (PTFE), our high-performance expansion joints ensure safe and reliable operations supporting system integrity, mitigating fatigue and reducing maintenance downtime.
Check out our extensive range of expansion joints below.