Zurn Wilkins - 375LXL Series - Backflow Preventer 32-50mm

The Zurn Wilkins 375 Series Backflow Preventer is a High Hazard, High-Performance Low Head Loss Backflow Preventer that features a lightweight ductile iron body, offering durability and easy installation. Constructed with corrosion-resistant low-lead materials, as well as all-plastic and stainless-steel components, this backflow preventer guarantees long-lasting reliability, ensuring a secure and efficient water system. this is also AS/NZS listed.

Typical Application

Designed for installation on potable water lines to protect against both back siphonage and backpressure of contaminated water into the potable water supply. Reduced Pressure Zone Device Assembly shall provide protection where a potential health hazard exists. (High Hazard)

Standards compliance

• Australian Watermark (AS/NZS 2845.1) Certified Lic. 1379

Operating Parameters

Maximum working water pressure: 1200kPa

Maximum working water temperature: 82°C

Hydrostatic test pressure: 2400kPa

Materials

Housing Reinforced: Nylon

Fasteners: Stainless Steel, 300 Series

Elastomers: Silicone, Buna Nitrile

Internals: Delrin, Nylon

Springs: Stainless steel, 300 series

Tailpieces: Cast Bronze, Lead-Free

Struts: Stainless steel, 300 series.

End connections: Male Threaded BSPT

Test connections: 1/4" SAE 45° Flare

Flow Characteristics

Relief Valve Discharge Rates

The Reduced Pressure Principle Backflow Preventer shall be Australian Watermark Certified (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. The Reduced Pressure Principle Backflow Preventer shall be a ZURN WILKINS Model 375.

Typical Installation

Dimensions and Weights