Wilkins TG-5 | 5-Valve Backflow Prevention Assembly Test Kit
Wilkins TG-5 | 5-Valve Backflow Prevention Assembly Test Kit is backordered and will ship as soon as it is back in stock.
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Wilkins TG-5 | 5-Valve Backflow Prevention Assembly Test Kit
The Zurn Wilkins TG‑5 is a 5‑valve differential pressure test kit engineered for testing backflow prevention assemblies. It performs all recognized testing procedures for Reduced Pressure Principle Assemblies, Double Check Valve Assemblies, and Pressure Vacuum Breakers, ensuring compliance with ASSE, AWWA, and FCCCHR standards.
Key Specifications:
| Maximum Working Pressure | 200 psi |
| Temperature Range | 35°F to 150°F |
| Gauge Dial | 4½" diameter, 0–15 PSI scale |
| Accuracy | ±0.2 PSI differential (descending) |
| Warranty | 5 years against defects in materials and manufacturing |
Features & Benefits:
- Comprehensive Testing: Performs all known backflow assembly testing procedures
- Durable Construction: Thermoplastic gauge body, brass fittings, stainless steel internals, and Buna nitrile hoses
- High Accuracy: ±0.2 PSI differential accuracy ensures reliable test results
- Portable Design: Supplied with a rugged molded plastic carrying case
- Certified Calibration: Gauges tested to standards traceable to the National Bureau of Standards
What's Included:
- 5‑valve differential pressure gauge assembly
- 4½" gauge dial (0–15 PSI scale)
- 200 PSI line pressure gauge
- Three 5' color‑coded hoses and one 4' bleed tube
- Porous brass filters and molded plastic carrying case
- Calibration certificate and laminated instruction sheet
Comparison of Backflow Testing & Prevention Products:
| Feature | TG‑5 Test Kit | Wilkins 720A PVB | Wilkins AG‑10 |
|---|---|---|---|
| Type | 5‑valve differential pressure test kit | Pressure Vacuum Breaker Assembly | Air Gap Adaptor Fitting |
| Application | Testing RP, DC, and PVB assemblies | Prevents back‑siphonage in irrigation/plumbing | Provides code‑approved physical air gap |
| Pressure Rating | 200 psi | 175 psi | — |
| Temperature Range | 35°F to 150°F | 33°F to 140°F | — |
| Construction | Thermoplastic gauge body, brass fittings, stainless internals | Bronze body, stainless steel springs | PVC body, fits Wilkins backflow assemblies |
How to Install the TG‑5:
- Inspect the kit: Verify that the gauge, hoses, fittings, and filters are included and free of damage before use.
- Connect hoses: Attach the color‑coded hoses (high side, low side, bypass) to the appropriate test cocks on the backflow assembly being tested.
- Bleed air: Use the bleed needle valves to purge air from the hoses and gauge before starting any test procedure.
- Position the gauge: Hold the differential pressure gauge at the same level as the valve being tested to ensure accurate readings.
- Follow procedures: Conduct the appropriate test (RP, DC, or PVB) according to local code requirements and the laminated instruction sheet provided.
How to Maintain the TG‑5:
- Annual calibration: Have the gauge rechecked for calibration annually to maintain ±0.2 PSI accuracy.
- Clean filters: Remove and clean the porous brass filters regularly to prevent debris from affecting readings.
- Inspect hoses: Check the Buna nitrile hoses for cracks or wear; replace if damaged to avoid leaks.
- Protect the gauge: Store the kit in its molded plastic carrying case when not in use to prevent damage.
- Service components: Replace worn needle valve seats or fittings with genuine Zurn Wilkins parts to maintain performance.
FAQ
Q: What Types of Backflow Assemblies Can the TG‑5 Test?
A: It can test Reduced Pressure Principle Assemblies, Double Check Valve Assemblies, and Pressure Vacuum Breakers.
Q: How Often Should the TG‑5 Be Calibrated?
A: Gauges should be rechecked for calibration annually to maintain accuracy.
Q: What Is the Accuracy of the TG‑5?
A: The TG‑5 provides ±0.2 PSI differential accuracy (descending).
Q: Does the Kit Include Hoses and Fittings?
A: Yes. It includes three 5' color‑coded hoses, one 4' bleed tube, SAE flare fittings, and cleanable brass filters.
Q: Is the TG‑5 Portable?
A: Yes. It comes with a durable molded plastic carrying case with external fitting compartments for easy transport.
NOTICE: Always follow local codes and testing requirements when using backflow test kits. Annual calibration is required to maintain accuracy and compliance.
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The Zurn Wilkins TG‑5 Backflow Prevention Assembly Test Kit is designed for testing Reduced Pressure Principle Assemblies, Double Check Valve Assemblies, and Pressure Vacuum Breakers. It ensures compliance with ASSE, AWWA, and FCCCHR standards.
Key Installation Requirements:
- Connect hoses securely to test cocks before pressurizing
- Use differential pressure gauge with 5 soft‑seated needle valves
- Flush test cocks before attaching hoses to remove debris
- Maintain proper calibration of gauge (annual recheck required)
- Follow local codes and testing requirements
Important Notes Before Installing/Using:
- Do not operate without proper training or certification
- Always depressurize system before disconnecting hoses
- Relief valve opening point must be observed and recorded
- Check valves must hold tight against reverse flow
- Always refer to the official Zurn Wilkins TG‑5 Spec Sheet for specifications
Basic Installation & Testing Overview:
- Flush water through test cocks #1–#4 to remove foreign material
- Connect high side hose to #2 test cock and low side hose to #3 test cock
- Bleed air from hoses and gauge using bleed needle valves
- Close #2 shutoff valve and observe pressure drop across #1 check valve
- Bypass water between #2 and #3 test cocks to observe relief valve opening
- Test #2 check valve for tightness against reverse flow
- Record static pressure drop across #1 check valve (≥5.0 psid required)
- Complete additional tests for Double Check Valve and Pressure Vacuum Breaker assemblies as outlined in manual
For complete step‑by‑step instructions, download the official Zurn Wilkins TG‑5 Installation & Testing Manual.
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