3L
Pressure Relief Valves with Test Lever
Series 3L Pressure Relief Valves are used in residential applications to protect against excessive pressure on domestic storage tanks, tankless water heaters, and solar heating applications. They have a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring, and test lever. Model 3L-Z9 has a stainless steel lever and pin for outside solar applications. ANSI Z21.22 approved, ASME rated, and design certified and listed by CSA. Can be used with Watts Series 210 gas shutoff valve. Pressure Range: 75 to 150psi (5.27 to 10.34 bar). Standard Pressure Settings: 75, 100, 125, and 150psi (5.17, 6.90, 8.61, and 10.34 bar).
Features
- Valve protects storage tanks and tankless water heaters from excessive pressure
- Furnished with test lever
- 1/2 in. (15mm)
- Model available for outdoor solar applications
Literature
Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:
| ASSE | CSA | FM Approvals | NSF |
| UL | ULC | USC | WQA |