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Zurn Wilkins - 350L Series - Backflow Preventer

Deeco - Zurn Wilkins - 350L Series - Product Image
Brand: Zurn Wilkins
Category: Backflow Prevention, 350 Series
Size Range:

65-300mm

Other Sizes:

20,25mm

32-50mm

Connection:

Flanged to AS2129 Table D/E

Product Description

The Zurn Wilkins 350L series is a high-performance backflow preventer with low head-loss design, short lay length, lightweight ductile iron body with corrosion resistant low lead. All plastic and stainless-steel internal components.
65-300mm Flanged AS2129 Table D/E.

Features and Benefits

  • Short lay length for small space installation
  • Reliable performance and improved flow characteristics from patented Compound check
  • Available in flanged, grooved or grooved x flanged end connections for installation versatility.
  • No threads or taps in body or cover, eliminating exposure to corrosion.
  • Single access cover reduces maintenance down time.

Typical Application

Designed for installation on potable water lines to protect against both back siphonage and backpressure of polluted water into the potable water supply. The Model 350 shall provide protection where a potential health hazard exists (Medium Hazard).

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 Table D/E.

Materials

  • Main Valve Body: Ductile Iron ASTM A536 Grade 4
  • Access Covers: Ductile Iron ASTM A536 Grade 4
  • Coatings: Fusion Epoxy
  • Fastners: Stainless Steel 304
  • Internals: Stainless Steel 304
  • Seal Ring: EPDM
  • O-ring: Buna Nitrile
  • Springs: Stainless Steel 17-7

Flow Characteristics

MODEL 350 65mm, 80mm & 100mm (STANDARD & METRIC)

Zurn Wilins - 350L - 65,80,100mm - Flow Rates

Zurn Wilkins - 350L - 65mm, 80mm 100mm - Flow Rates

MODEL 350 150mm & 200mm (STANDARD & METRIC)

Zurn Wilins - 350L - 150,200mm - Flow Rates

Zurn Wilkins - 350L - 150mm, 200mm - Flow Rates

MODEL 350 250mm & 300mm (STANDARD & METRIC)

Zurn Wilins - 350L - 250,300mm - Flow Rates

Zurn Wilkins - 350L - 250mm, 300mm - Flow Rates

Technical Specifications

The Double Check Backflow Prevention Assembly shall be certified to NSF/ANSI 61, ASSE® Listed 1015, and supplied with full port gate valves. The main body and access cover shall be epoxy coated ductile iron (ASTM A 536), the seat ring and check valve shall be NORYL™, the stem shall be stainless steel (ASTM A 276) and the seat disc elastomers shall be EPDM. The checks shall be accessible for maintenance without removing the device from the line. The Double Check Backflow Prevention Assembly shall be a ZURN WILKINS Model 350.


Dimensional Drawing

Zurn Wilins - 350L - 65,80,100,150mm - Gate Valve
Zurn_Wilkins_Butterfly_Valves
Zurn_Wilkins_350L_Butterfly_Valves

Dimensions and Weights (Do not include pkg.)

Zurn Wilins - 350L - Dimensions and Weights

Typical Installation

Local codes shall govern installation requirements. 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 - 350L - Typical Installation

Zurn Wilkins - 350L/375L Series - 65-300mm - Repair Kits

Product Code Size Description
RK212-350 65-80mm Model 350/375L - Repair Kit - Check Rubbers only (Suits Ductile and Stainless)
RK4-350 100mm Model 350/375L - Repair Kit - Check Rubbers only (Suits Ductile and Stainless)
RK6-350 150mm Model 350/375L - Repair Kit - Check Rubbers only (Suits Ductile and Stainless)
RK8-350 200-300mm Model 350/375L - Repair Kit - Check Rubbers only (Suits Ductile and Stainless)
212-350-R
Pos. Description Qty
1 Seal Ring for Check Assembly #1 1
2 Seal Ring for Check Assembly #2 1
3 O-Rings for Poppet Bolt 2
4 O-Ring for #1 Check 1
5 O-Ring for #2 Check 1
RK4-350
Pos. Description Qty
1 Seal Ring for Check Assembly #1 1
2 Seal Ring for Check Assembly #2 1
3 O-Rings for Poppet Belt 8
4 O-Rings for Checks 2
5 O-Rings for AST valves 2
RK6-350
Pos. Description Qty
1 O-Ring for #1 Check 1
2 O-Ring for #2 Check 1
3 O-Rings for Poppet Bolt 8
4 Seal Ring for Check Assembly #1 1
5 Seal Ring for Check Assembly #2 1
6 Lubricant 2
RK8-350
Pos. Description Qty
1 O-Ring for #1 Check 1
2 O-Ring for #2 Check 1
3 O-Rings for Poppet Bolt 8
4 Seal Ring for Check Assembly #1 1
5 Seal Ring for Check Assembly #2 1


Zurn Wilkins - 350L/375L Series - 65-300mm - Spare Parts

350L - Spare Parts
Pos. Product Code Size Description
1 3507-300 65-80mm Check Assembly #1
2 3507-300A 65-80mm Check Assembly #2
3 3509-300A 100mm Check Assembly #1
4 3509-300B 100mm Check Assembly #2
5 3510-300A 150mm Check Assembly #1
6 3510-300B 150mm Check Assembly #2
7 3512-300A 200-300mm Check Assembly #1
8 3512-300B 200-300mm Check Assembly #2

Zurn Wilkins - 350L Series, Ductile Iron - Backflow Preventer

Medium Hazard, High-Performance, Low Head Loss Backflow Preventer

Product Code Size Description
350L065 65mm Medium Hazard, Double Check Backflow Preventer - Model 350 - Flanged to AS2129 Table D/E
350L080 80mm Medium Hazard, Double Check Backflow Preventer - Model 350 - Flanged to AS2129 Table D/E
350L100 100mm Medium Hazard, Double Check Backflow Preventer - Model 350 - Flanged to AS2129 Table D
350L150 150mm Medium Hazard, Double Check Backflow Preventer - Model 350 - Flanged to AS2129 Table D/E
350L200 200mm Medium Hazard, Double Check Backflow Preventer - Model 350 - Flanged to AS2129 Table D/E
350L250 250mm Medium Hazard, Double Check Backflow Preventer - Model 350 - Flanged to AS2129 Table D

Note: Strainer and Valves are supplied loose, not including dressing sets or assembly.

Product Code Size Description
350L065+S 65mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer - Flanged to AS2129 Table D/E
350L080+S 80mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer - Flanged to AS2129 Table D/E
350L100+S 100mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer - Flanged to AS2129 Table D
350L150+S 150mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer - Flanged to AS2129 Table D/E
350L200+S 200mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer - Flanged to AS2129 Table D/E
350L250+S 250mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer - Flanged to AS2129 Table D

Note: Strainer and Valves are supplied loose, not including dressing sets or assembly.

Product Code Size Description
350L065+SV 65mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Gate Valves - Flanged to AS2129 Table D/E
350L080+SV 80mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Gate Valves - Flanged to AS2129 Table D/E
350L100+SV 100mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Gate Valves - Flanged to AS2129 Table D
350L150+SV 150mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Gate Valves - Flanged to AS2129 Table D/E
350L200+SV 200mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Gate Valves - Flanged to AS2129 Table D/E
350L250+SV 250mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Gate Valves - Flanged to AS2129 Table D

Note: Strainer and Valves are supplied loose, not including dressing sets or assembly.

Product Code Size Description
350L065+SBV 65mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Butterfly Valves - Flanged to AS2129 Table D/E
350L080+SBV 80mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Butterfly Valves - Flanged to AS2129 Table D/E
350L100+SBV 100mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Butterfly Valves - Flanged to AS2129 Table D
350L150+SBV 150mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Butterfly Valves - Flanged to AS2129 Table D/E
350L200+SBV 200mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Butterfly Valves - Flanged to AS2129 Table D/E
350L250+SBV 250mm Medium Hazard, Double Check Backflow Preventer - Model 350 + Y Strainer + Butterfly Valves - Flanged to AS2129 Table D



Zurn Wilkins - 350SPD Series, Stainless Steel - Backflow Preventer

Medium Hazard, High-Performance, Low Head Loss, Corrosion Resistant Backflow Preventer

Product Code Size Description
350SPD100 100mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350SPD - Flanged to AS2129 Table D
350SPD150 150mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350SPD - Flanged to AS2129 Table D/E

Note: Strainer and Valves are supplied loose, not including dressing sets or assembly.

Product Code Size Description
350SPD100+S 100mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350SPD + Y Strainer - Flanged to AS2129 Table D
350SPD150+S 150mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350SPD + Y Strainer - Flanged to AS2129 Table D/E
350SPD100+SV 100mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350SPD + Y Strainer + Gate Valves - Flanged to AS2129 Table D
350SPD150+SV 150mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350SPD + Y Strainer + Gate Valves - Flanged to AS2129 Table D/E
350SPD100+SBV 100mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350SPD + Y Strainer + Butterfly Valves - Flanged to AS2129 Table D
350SPD150+SBV 150mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350SPD + Y Strainer + Butterfly Valves - Flanged to AS2129 Table D/E



Zurn Wilkins - 350DAL Series, Ductile Iron - Double Check Detector Assembly

Testable double-check assembly with 20mm Sensus water meter and testable double-check assembly bypass with lockable ball valves.

Product Code Size Description
350DAL050 50mm Backflow Preventer Assembly and Detector Check - BSP Only
350DAL065 65mm Backflow Preventer Assembly and Detector Check - Ductile Iron, Flanged Only
350DAL080 80mm Backflow Preventer Assembly and Detector Check - Ductile Iron, Flanged Only
350DAL100 100mm Backflow Preventer Assembly and Detector Check - Ductile Iron, Flanged Only
350DAL150 150mm Backflow Preventer Assembly and Detector Check - Ductile Iron, Flanged Only
350DAL200 200mm Backflow Preventer Assembly and Detector Check - Ductile Iron, Flanged Only
350DAL250 250mm Backflow Preventer Assembly and Detector Check - Ductile Iron, Flanged Only



Zurn Wilkins - 350ASTL Series, Stainless Steel - Backflow Preventer - Device Only

Medium Hazard, High-Performance, Low Head Loss, Corrosion Resistant Backflow Preventer

Product Code Size Description
350ASTL100 100mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350ASTL - Grooved
350ASTL150 150mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350ASTL - Grooved
350ASTL200 200mm Medium Hazard, Stainless Steel, Double Check Backflow Preventer - Model 350ASTL - Grooved

Available in AS4087-2011 PN16 Flange/Flanges or Grooved Connections.



Zurn Wilkins - 350ASTDAL Series, Stainless Steel - Double Check Detector Assembly

Testable double-check assembly with 20mm Sensus water meter and testable double-check assembly bypass with lockable ball valves.

AON approved for Firelines.

Product Code Size Description
350ASTDAL100 100mm Backflow Preventer Assembly and Detector Check - Stainless Steel, Grooved
350ASTDAL150 150mm Backflow Preventer Assembly and Detector Check - Stainless Steel, Grooved
350ASTDAL200 200mm Backflow Preventer Assembly and Detector Check - Stainless Steel, Grooved

Available in AS4087-2011 PN16 Flange/Flanges or Grooved Connections.



Additional Accessories

Epoxy Coated with Stainless Steel Screen. Flange/Flange - AS2129 Table D

Prooduct Code Size Description
YS065 65mm Flanged Y Strainer, FBE Coated, Flange/Flange - AS2129 Table D/E
YS080 80mm Flanged Y Strainer, FBE Coated, Flange/Flange - AS2129 Table D/E
YS100 100mm Flanged Y Strainer, FBE Coated, Flange/Flange - AS2129 Table D
YS150 150mm Flanged Y Strainer, FBE Coated, Flange/Flange - AS2129 Table D/E
YS200 200mm Flanged Y Strainer, FBE Coated, Flange/Flange - AS2129 Table D/E
YS250 250mm Flanged Y Strainer, FBE Coated, Flange/Flange - AS2129 Table D/E
Prooduct Code Size Description
NRS065 65mm Isolating Gate Valve c/w Handle Wheel and Non-Rising Stem. Full Bore AS4087 PN16. Flange / Flange
NRS080 80mm Isolating Gate Valve c/w Handle Wheel and Non-Rising Stem. Full Bore AS4087 PN16. Flange / Flange
NRS100 100mm Isolating Gate Valve c/w Handle Wheel and Non-Rising Stem. Full Bore AS4087 PN16. Flange / Flange
NRS150 150mm Isolating Gate Valve c/w Handle Wheel and Non-Rising Stem. Full Bore AS4087 PN16. Flange / Flange
NRS200 200mm Isolating Gate Valve c/w Handle Wheel and Non-Rising Stem. Full Bore AS4087 PN16. Flange / Flange
NRS250 250mm Isolating Gate Valve c/w Handle Wheel and Non-Rising Stem. Full Bore AS4087 PN16. Flange / Flange
Prooduct Code Size Description
BV050 50mm Wafer (Universal) Epoxy Coated CI Body, SS316 Disc, EPDM Seat, c/w Notched Lever Handle
BV065 65mm Wafer (Universal) Epoxy Coated CI Body, SS316 Disc, EPDM Seat, c/w Notched Lever Handle
BV080 80mm Wafer (Universal) Epoxy Coated CI Body, SS316 Disc, EPDM Seat, c/w Notched Lever Handle
BV100 100mm Wafer (Universal) Epoxy Coated CI Body, SS316 Disc, EPDM Seat, c/w Notched Lever Handle
BV150 150mm Wafer (Universal) Epoxy Coated CI Body, SS316 Disc, EPDM Seat, c/w Notched Lever Handle
BV200 200mm Wafer (Universal) Epoxy Coated CI Body, SS316 Disc, EPDM Seat, c/w Notched Lever Handle
BV250 250mm Wafer (Universal) Epoxy Coated CI Body, SS316 Disc, EPDM Seat, c/w Notched Lever Handle
Prooduct Code Size Description
RSM100 100mm Gate Valve - Table D/E Flange Type or Grooved - with Tamper Switch
RSM150 150mm Gate Valve - Table D/E Flange Type or Grooved - with Tamper Switch
RSM200 200mm Gate Valve - Table D/E Flange Type or Grooved - with Tamper Switch
SBOV100 100mm Grooved Butterfly Valve with Tamper Switch
SBOV150 150mm Grooved Butterfly Valve with Tamper Switch
SBOV200 200mm Grooved Butterfly Valve with Tamper Switch

Grooved Connection, High Performance Welding Strainer.

Prooduct Code Size Description
100WS2000 100mm Welding Strainer 500-2,000 l/m
150WS4000 150mm Welding Strainer ~4,000 l/m
150WS4500 150mm Welding Strainer ~4,500 l/m
150WS5000 150mm Welding Strainer 5,000 l/m
200WS6000 200mm Welding Strainer ~6,000 l/m
200WS6500 200mm Welding Strainer 6,500 l/m
200WS7000 200mm Welding Strainer 7,000 l/m
200WS7500 200mm Welding Strainer 7,500 l/m

To suit 350/375 ASTL Grooved backflow devices and grooved gate valves, butterfly valves or welding strainer.

Prooduct Code Size Description
GC100 100mm Roll Groove / Roll Groove Rigid Coupler - Galvanised
GC150 150mm Roll Groove / Roll Groove Rigid Coupler - Galvanised
GC200 200mm Roll Groove / Roll Groove Rigid Coupler - Galvanised
RGFA100 100mm Roll Groove Fixed Flange Adaptor - Table E - Galvanised
RGFA150 150mm Roll Groove Fixed Flange Adaptor - Table E - Galvanised
RGFA200 200mm Roll Groove Fixed Flange Adaptor - Table E - Galvanised
RGGF100 100mm Roll Groove Hinged Flange Adaptor - Table E - Galvanised
RGGF150 150mm Roll Groove Hinged Flange Adaptor - Table E - Galvanised
RGGF200 200mm Roll Groove Hinged Flange Adaptor - Table E - Galvanised

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