DC-500 | Double Check Valve


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PN 10 - DN 20/25/40/50


The DC-500 double check valve is designed to provide the best protection and durability against back flow caused by negative or opposite pressure. Back flow may cause infiltration of chemicals, fertilizers and/or other pollutants into drinking water systems. The DC-500 is reliable and easily maintained, and does not require special tools. The DC-500 has two independent, easily replaceable, spring check valves in capsules. The DC-500 is recommended where the degree of pollution doesn't impose the use of an RP-500.

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Product Features

  • The DC-500 protects against backflow caused by backpressure or back-siphonage.
  • Approved by the leading Standards Authorities worldwide.
  • UV resistant.
  • Lightweight and economical; easy to maintain, no need for special tools except for a screwdriver.
  • Available in sizes: 3/4", 1", 1 1/2", 2", threaded BSP/NPT connections.

Materials and Corrosion Protection

  • Made of durable, non-corrosive plastic thermal resin material.
  • Stainless steel screws and springs.
  • Operating pressure up to 150 psi.

Application Range

  • Operating pressure up to 150 psi.
  • Maximum operating temperature: 44°C.
  • For irrigation systems, water handling applications, potable water lines and all other installations requiring protection against back-siphonage and backpressure of contaminated liquids.


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Last Updated on: Thursday, 01 August 2019