How will changing environmental regulations affect the design and use of check valves

Preventing media contamination or mixing. By preventing reverse flow, check valves prevent the mixing of different media between two reservoirs. For example, in ... Sprinkler head check valves also help to conserve the amount of water needed to fill the pipes each time the sprinklers begin running. By keeping the water in ... The Series 3600 Swing Check Valves prevent backflow in irrigation water control lines. Features: Cast aluminum body combines lightweight strength and corrosion ... Back-Check Valve Extension Set. Two flexible connectors with back-check valves. Read more Overview & Texts Description Two flexible connectors with back-check ... 244AB LF Brass EzPress Swing Check Valve. Horizontal “T” Pattern. Low Lead Brass Disc. AB1953, NSF/ANSI 61 & 372 Spec Sheet. 3/8" x 1/2" Check Valve - Compatible with Riser Mount Compressors: OL Advance Series, OL Plus Series, OLR Plus Series, Quiet Series. Double Check Valve Assemblies. Designed for use in non-health hazard cross-connections and continuous pressure applications subject to ... SMC pilot check valves permit flow in one direction and only allow reverse flow if supplied with an appropriate pilot signal. They are available in thread sizes ... The special check valve is a swing style check valve with a spring-loaded air cylinder that provides spring force assisted closing. Max Brass Push Check Assembly. SharkBite Max check valves are designed to prevent the reverse flow of water, compatible with PEX, copper, CPVC, PE-RT or HDPE ...