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The Matco-Norca 523S05 is a spring-loaded PVC check valve engineered to prevent backflow and siphoning in plumbing systems. It features 1" socket × socket solvent weld connections, a stainless steel spring, and an EPDM seal. Rated for 150 PSI at 73.4°F (23°C) per Matco-Norca, with some distributors listing 200 PSI at 77°F, it is suitable for swimming pools, hot tubs, spas, agricultural irrigation, solar installations, and light industrial applications. The valve has a 0.5 PSI crack pressure and operates maintenance-free.
The Matco-Norca 523S05 is a spring-loaded PVC check valve engineered to prevent backflow and siphoning in plumbing systems. It features 1" socket × socket solvent weld connections, a stainless steel spring, and an EPDM seal. Rated for 150 PSI at 73.4°F (23°C) per Matco-Norca, with some distributors listing 200 PSI at 77°F, it is suitable for swimming pools, hot tubs, spas, agricultural irrigation, solar installations, and light industrial applications. The valve has a 0.5 PSI crack pressure and operates maintenance-free.
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