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Zurn Wilkins - 375L Series - Backflow Preventer

Deeco - Zurn Wilkins - 375L Series - Product Image
Brand: Zurn Wilkins
Category: Backflow Prevention, 375 Series
Size Range:

65-250mm

Other Sizes:

32-50mm

20-25mm

Connection:

Flanged AS2129 Table D/E

Product Description

The Zurn Wilkins 375 Reduced Pressure Principle Backflow Preventer provides high hazard protection for all applications. The flanged, epoxy coated ductile iron body is available with multiple shut-off valve options for installation versatility.

Features and Benefits

  • Short lay length for small space installation.
  • NRS, OS&Y, or Butterfly shut-off valves available.
  • Available in flanged, grooved, or grooved X flanged end connections for installation versatility.
  • Ideal for any backflow replacement.
  • Utilizes Zurn Wilkins low headloss Compound Check for reliable and superior performance.
  • No threads or taps in body or cover, eliminating exposure to corrosion.
  • Single access cover reduces down time.
  • No threads or taps in body or cover, eliminating exposure to corrosion.

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).

375L - Installation

Zurn Wilkins - 375L - Customer Installation

Standards Compliance

  • Australian Watermark and Standards Mark
  • UL Classified
  • FM Approved
Zurn Wilins - 350L - Standards Compliance

Technical Data

Operating Parameters

  • Max. Working Water Pressure: 1200kPa
  • Max. Working Temperature: 60°C
  • Hydrostatic Test Pressure: 2400kPa
  • End Connections: Flanges to AS2129

Materials

  • Main Valve Body Ductile Iron ASTM A536 Grade 4
  • Access Covers Ductile Iron ASTM A536 Grade 4
  • Coatings Fusion Epoxy
  • Fasteners Stainless Steel 300 Series
  • Internals Stainless Steel 300 Series, Noryl™
  • Seal Ring EPDM
  • O-ring Buna Nitrile
  • Springs Stainless Steel 300 Series
  • Sensing Line Stainless Steel, Braided Hose

Flow Characteristics

MODEL 375 RPZ 65mm, 80mm & 100mm (STANDARD & METRIC)

Zurn Wilkins - 375L - 65,80,100mm - Flow Rates

Zurn Wilkins - 375L-65mm, 80mm,100mm - Flow Rates

MODEL 375 RPZ 150mm, 200mm, 250mm (STANDARD & METRIC)

Zurn Wilkins - 375L - 150,200,250mm - Flow Rates

Zurn Wilkins - 375L-10mm, 200mm, 250mm - Flow Rates

Technical Specifications

Dimensional Drawing

Zurn Wilkins - 375L - 65,80,100,150mm - Gate Valve
Zurn Wilins - 375L - 65,80,100,150mm - Butterfly Valve

Zurn Wilins - 375L - 65,80,100,150mm - Butterfly Valve

Zurn_Wilkins_Butterfly_valve_Dimensional_Drawing

Dimensions and Weights (do not include pkg.)

Zurn Wilins - 375L - Dimensions and Weights

Typical Installation

Local codes shall govern installation requirements. To be installed in accordance with the manufacturers’ instructions and the latest edition of the Plumbing Code of Australia and/or AS/NZS 3500. 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.

Zurn Wilins - 375L - Typical Installation

Zurn Wilins - 375L - Typical Installation

Zurn Wilkins - 375L Series - Backflow Preventer - Device Only

Zurn Wilkins - 375L - How to Order
Product Code Size Description
375L065 65mm Zurn Wilkins Model 375 - 65mm - Flanged AS2129 Table D/E
375L080 80mm Zurn Wilkins Model 375 - 80mm - Flanged AS2129 Table D/E
375L100 100mm Zurn Wilkins Model 375 - 100mm - Flanged AS2129 Table D/E
375L150 150mm Zurn Wilkins Model 375 - 150mm - Flanged AS2129 Table D/E
375L200 200mm Zurn Wilkins Model 375 - 200mm - Flanged AS2129 Table D/E
375L250 250mm Zurn Wilkins Model 375 - 250mm -Flanged AS2129 Table D/E
Product Code Size Description
375L065+S 65mm Zurn Wilkins Model 375 with Y Strainer - 65mm - Flanged AS2129 Table D/E
375L080+S 80mm Zurn Wilkins Model 375 with Y Strainer - 80mm - Flanged AS2129 Table D/E
375L100+S 100mm Zurn Wilkins Model 375 with Y Strainer - 100mm - Flanged AS2129 Table D/E
375L150+S 150mm Zurn Wilkins Model 375 with Y Strainer - 150mm - Flanged AS2129 Table D/E
375L200+S 200mm Zurn Wilkins Model 375 with Y Strainer - 200mm - Flanged AS2129 Table D/E
375L250+S 250mm Zurn Wilkins Model 375 with Y Strainer - 250mm - Flanged AS2129 Table D/E
Product Code Size Description
375L065+SV 65mm Zurn Wilkins Model 375 with Y Strainer & Gate Valves - 65mm - Flanged AS2129 Table D/E
375L080+SV 80mm Zurn Wilkins Model 375 with Y Strainer & Gate Valves - 80mm - Flanged AS2129 Table D/E
375L100+SV 100mm Zurn Wilkins Model 375 with Y Strainer & Gate Valves - 100mm - Flanged AS2129 Table D/E
375L150+SV 150mm Zurn Wilkins Model 375 with Y Strainer & Gate Valves - 150mm - Flanged AS2129 Table D/E
375L200+SV 200mm Zurn Wilkins Model 375 with Y Strainer & Gate Valves - 200mm - Flanged AS2129 Table D/E
375L250+SV 250mm Zurn Wilkins Model 375 with Y Strainer & Gate Valves - 250mm - Flanged AS2129 Table D/E
Product Code Size Description
375L065+SBV 65mm Zurn Wilkins Model 375 with Y Strainer & Butterfly Valves - 65mm - Flanged AS2129 Table D/E
375L080+SBV 80mm Zurn Wilkins Model 375 with Y Strainer & Butterfly Valves - 80mm - Flanged AS2129 Table D/E
375L100+SBV 100mm Zurn Wilkins Model 375 with Y Strainer & Butterfly Valves - 100mm - Flanged AS2129 Table D/E
375L150+SBV 150mm Zurn Wilkins Model 375 with Y Strainer & Butterfly Valves - 150mm -Flanged AS2129 Table D/E
375L200+SBV 200mm Zurn Wilkins Model 375 with Y Strainer & Butterfly Valves - 200mm - Flanged AS2129 Table D/E
375L250+SBV 250mm Zurn Wilkins Model 375 with Y Strainer & Butterfly Valves - 250mm - Flanged AS2129 Table D/E



Additional Accessories

Zurn Y strainer
Prooduct Code Size Description
YS065 65mm Flanged Y Strainer FBE Coated - 65mm
YS080 80mm Flanged Y Strainer FBE Coated - 80mm
YS100 100mm Flanged Y Strainer FBE Coated - 100mm
YS150 150mm Flanged Y Strainer FBE Coated - 150mm
YS200 200mm Flanged Y Strainer FBE Coated - 200mm
Gate Valve
Prooduct Code Size Description
NRS065 65mm Gate Valve Flange / Flange - 65mm
NRS080 80mm Gate Valve Flange / Flange - 80mm
NRS100 100mm Gate Valve Flange / Flange - 100mm
NRS150 150mm Gate Valve Flange / Flange - 150mm
NRS200 200mm Gate Valve Flange / Flange - 200mm
Butterfly Valves - Image
Prooduct Code Size Description
BV050 50mm Wafer Butterfly Valve - 50mm
BV065 65mm Wafer Butterfly Valve - 65mm
BV080 80mm Wafer Butterfly Valve - 80mm
BV100 100mm Wafer Butterfly Valve - 100mm
BV150 150mm Wafer Butterfly Valve - 150mm
BV200 200mm Wafer Butterfly Valve - 200mm
BV250 250mm Wafer Butterfly Valve - 250mm



Repair Kits

Product Code Size Description
RK212-375 65-150mm Model 375 Relief Kit - Complete (suits Ductile and Stainless)
RK212-375R 65-150mm Model 375 Relief Kit - Rubber Only (suits Ductile and Stainless)
RK8-375 200-250mm Model 375 Relief Kit - Complete (suits Ductile and Stainless)
RK8-375R 200-250mm Model 375 Relief Kit - Rubber Only (suits Ductile and Stainless)
RK212375-Product image
Pos. Description Qty
1 Diaphragm 1
2 Relief Valve Spring 1
3 O-Ring for Upper Plunger 1
4 Seal Ring for Relief Valve 1
5 O-Ring for Seat 1
6 O-Ring for Relief Valve 1
7 Lubricant 1
RK212375R-Product image
Pos. Description Qty
1 Diaphragm 1
2 Seal Ring for Relief Valve 1
3 O-Ring for Upper Plunger 1
4 O-Ring for Seat 1
5 O-Ring for Relief Valve 1
6 Lubricant 1
RK8-375 - how to order image
Pos. Description Qty
1 Relief Valve Spring 1
2 Seal Ring for Relief Valve 1
3 O-Ring for Relief Valve Seat 1
4 O-Ring for Relief Valve 1
5 Diaphragm 1
6 O-Ring for Upper Plunger 1
RK8-375R - how to order image
Pos. Description Qty
1 Diaphragm 1
2 Seal Ring for Relief Valve 1
3 O-Ring for Relief Valve Seat 1
4 O-Ring for Relief Valve 1
5 O-Ring for Upper Plunger 1
6 Lubricant 1



Spare Parts

375L - Spare Parts - How to Order
Pos. Product Code Size Description
1 3707-300 65-80mm Check Assembly #1
2 3507-300A 65-80mm Check Assembly #2
3 3709-300 100mm Check Assembly #1
4 3509-300B 100mm Check Assembly #2
5 3710-300 150mm Check Assembly #1
6 3510-300B 150mm Check Assembly #2
7 3712-300 200-300mm Check Assembly #1
8 3512-300B 200-300mm Check Assembly #2
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