SPECIFICATIONS

The Reduced Pressure Principle Backflow Preventer shall be Australian Watermark Approved (AS/NZS 2845.1), rated to 82°C and supplied male pipe thread tailpieces. The main body shall be Nylon and the seat disc elastomers shall be silicone. If installed indoors, the installation shall be supplied with an air gap adapter. The Reduced Pressure Principle Backflow Preventer shall be a WILKINS Model 375

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ENGINEERING SPECIFICATION - MODEL 375

• Designed for installation on potable water lines
• Protects against both backsiphonage and backpressure of contaminated water into the water supply
• Assembly provides protection where a potential health hazard exists (High Hazard)
• The Reduced Pressure Principle Backflow Preventer is Australian Watermark Approved (AZ/NZS 2845.1)
• The Double Check Valve Backflow Preventer is rated to 82°C
• The Double Check Valve Backflow Preventer is supplied with male pipe thread tailpieces
• The main body is Nylon and the seat disc elastomers are silicone
• If installed indoor, the installation should be supplied with an air gap adapter.
• Unless otherwise specified, the assembly should be mounted at a minimum of 300mm and maximum of 762mm above adequate drains with sufficient side clearance for testing and maintenance

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STANDARDS COMPLIANCE

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PRODUCT INFORMATION

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FLOW RATES

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Please note: The pressure losses depicted in these tables are for the device only and not the complete assembly

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DIMENSIONAL DATA

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TYPICAL INSTALLATION

Local codes shall govern installation requirements. To be installed in accordance with the manufacturers’ instructions and the latest edition of the Uniform Plumbing Code. Unless otherwise specified, the assembly shall be mounted at a minimum of 12” (305mm) and a maximum of 30” (762mm) above adequate drains with sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged.

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