SPECIFICATIONS

The Double Check Valve Backflow Preventer shall be Australian Watermark Approved (AZ/NZS 2845.1), rated to 82°C and supplied with male pipe thread tailpieces. The main body shall be Bronze for sizes 3/4" & 1", and Nylon for sizes 1-1/4" to 2". The housing shall be reinforced Nylon and the seat disc elastomers shall be silicone (FDA Approved). The first and second checks shall be accessible for maintenance without removing the device from the line. The Double Check Valve Backflow Preventer shall be a WILKINS Model 350.

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ENGINEERING SPECIFICATION - MODEL 350

• Designed for installation on potable water lines
• Protects against both back siphonage and back pressure of polluted water into the water supply
• Assembly provides protection where a potential health hazard does exist (Medium Hazard)
• The Double Check Valve Backflow Preventer is Australian Watermark Approved (AZ/NZS 2845.1)
• The Double Check Valve Backflow Preventer is rated to 80°C
• The Double Check Valve Backflow Preventer is supplied with female pipe thread tail pieces
• The main body is Bronze for sizes 20mm and 25mm, and Nylon for sizes 32mm to 50mm
• The housing is reinforced Nylon and the seat disc elastomer’s are silicone
• The first and second checks are accessible for maintenance without removing the device from the line

STANDARDS COMPLIANCE

• Australian Watermark (AS/NZS 2845.1) Approved Lic. 1379
• Type Tested AS/NZS 4020 Lic. 20111

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PRODUCT INFORMATION

FLOW RATES

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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Dimensional Data (mm) are Subject to Manufacturing Tolerances and Change Without Notice

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OUTDOOR & INDOOR INSTALLATION

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