| Brand: | Zurn Wilkins |
| Category: | Backflow Prevention, 350 Series |
| Size Range: | 65-300mm |
| Other Sizes: | |
| 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.
Zurn Wilkins - 350L100
Zurn Wilkins - 350L100
Zurn Wilkins - 350L100
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
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 Wilkins - 350L - 65mm, 80mm 100mm - Flow Rates
MODEL 350 150mm & 200mm (STANDARD & METRIC)
Zurn Wilkins - 350L - 150mm, 200mm - Flow Rates
MODEL 350 250mm & 300mm (STANDARD & METRIC)
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
Dimensions and Weights (Do not include pkg.)
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 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) |
Model 350/375L Repair Kit - Check Rubbers only (Suits Ductile and Stainless)
| 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 |
Model 350/375L - Repair Kit - Check Rubbers only (Suits Ductile and Stainless)
| 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 |
Model 350/375L - Repair Kit - Check Rubbers only (Suits Ductile and Stainless)
| 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 |
Model 350/375L - Repair Kit - Check Rubbers only (Suits Ductile and Stainless)
| 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
Check Assembly
| 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 |
Check Retainers
1. 3507-14F
2. 3507-14G
3. 3509-14B
4. 3509-140
5. 3510-14B
6. 3510-140
| Pos. | Product Code | Size | Description |
|---|---|---|---|
| 1 | 3507-14F | 65-80mm | Seat Retainer #1 Check |
| 2 | 3507-14G | 65-80mm | Seat Retainer #2 Check |
| 3 | 3509-14B | 100mm | Seat Retainer #1 Check |
| 4 | 3509-140 | 100mm | Seat Retainer #2 Check |
| 5 | 3510-14B | 150mm | Seat Retainer #1 Check |
| 6 | 3510-140 | 150mm | Seat Retainer #2 Check |
Zurn Wilkins - 350L Series, Ductile Iron - Backflow Preventer
Medium Hazard, High-Performance, Low Head Loss Backflow Preventer
Zurn Wilkins - 350L100
| 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.
Zurn Wilkins - 350L100+S
| 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.
Zurn Wilkins - 350L100+SV
| 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.
Zurn Wilkins - 350L100+SBV
| 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
Zurn Wilkins - 350SPD100
| 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.
Zurn Wilkins - 350SPD100+S
Zurn Wilkins - 350SPD100+SV
Zurn Wilkins - 350SPD100+SBV
| 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.
Zurn Wilkins - 350DAL200
| 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
Zurn Wilkins - 350ASTL100
| 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.
Zurn Wilkins - 350ASTDAL200
| 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
Zurn Wilkins - YS100
| 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 |
NRS080
| 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 |
BV100
| 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 |
RSM100
| 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.
100WS2000
| 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.
RGGF100
| 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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