This John Guest imperial single check valve is made of acetal copolymer and has tube connectors. This imperial single check valve is suitable for use with liquids. It restricts the flow of liquids and other loose materials to one direction through a pipe or passageway. It is a push-to-connect fitting that accepts the insertion of nylon, soft nylon and polyurethane tube fittings. It is made of acetal copolymer plastic, which has low moisture absorption, high tensile and flexural strength, and is hard and fatigue resistant. The working pressure for this fitting is up to 145 pounds per square inch (psi). This fitting meets National Sanitation Foundation (NSF)/American National Standards Institute (ANSI) standards 14, 51, and 61 for plastic piping systems, food equipment materials, and use with drinking (potable) water.
Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. Push-to-connect compression fittings do not require tools or sealants, and are useful in installations where a heat source, such as a soldering torch, is prohibited. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size, and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).
John Guest manufactures push-to-connect fittings and pipe and plastic plumbing systems. The company, founded in 1961, is headquartered in Great Britain and meets International Organization for Standardization (ISO) standard 9001.
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Imperial single check valve to prevent flow reversal in a liquid piping system
Accepts nylon and polyurethane tube fittings
Made of acetal copolymer plastic for low moisture absorption and high tensile and flexural strength
Working pressure of up to 145 psi
Meets NSF/ANSI standards 14, 51, and 61 for quality assurance
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