53L
Pressure Relief Valves with Test Lever
Series 53L Pressure Relief Valves are used in residential applications to protect against excessive pressure on domestic storage tanks and tankless water heaters. They have a bronze body construction with NPTF threaded male inlet and NPTF threaded female (drain) outlet connections, stainless steel spring, and test lever. ANSI Z21.22 approved, design certified and listed by CSA. Pressure Range: 75 to 175 psi (5.2 to 12.1 bar). Standard Pressure Setting: 75 psi (516.7 kPa). Optional Settings: 100, 125, and 150 psi (6.9, 8.6, and 10.3 bar); also available at 50 psi (3.45 bar) setting.
Features
- Valve protects domestic storage tanks and tankless water heaters from excessive pressure
- Furnished with test lever
- ½ in NPTF
- Model available for outdoor solar applications
Literature
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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 |