McDonnell & Miller 181525 250-3/4-50 Relief Valve, 3/4" NPT
McDonnell & Miller 181525 250-3/4-50 Relief Valve, 3/4" NPT
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Apply for Trade Account & Terms →| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 181525 |
| Model Designation | 250-3/4-50 |
| Connection Size | 3/4" NPT |
Safeguard your hydronic heating system against dangerous over-pressurization with the McDonnell & Miller 181525 relief valve. Engineered for precise calibration, this model 250-3/4-50 unit serves as a critical safety component, automatically discharging fluid to maintain internal system integrity when pressure limits are exceeded.
This valve utilizes a high-tension spring mechanism to keep the seat tightly sealed during normal operation. If the system pressure hits the relief set point, the valve lift action facilitates rapid venting, preventing potential damage to boilers, piping, and connected equipment before resetting once pressure returns to safe levels.
Key System Performance Baselines:
- Pressure Calibration: Factory set to ensure accurate response to system over-pressure events.
- Connection Standard: Features a standard 3/4" NPT threaded inlet for easy installation into existing hydronic piping.
- Durability Rating: Constructed with robust materials to withstand high-temperature hydronic environments.
⚠️ Application Profile: Suitable for residential and commercial hot water boilers, hydronic space heating loops, and industrial fluid pressure relief applications requiring a 3/4" connection.
