- This 1 inch boiler pressure relief valve is used in hot water space heating boiler applications to protect against excessive pressure on all types of hot water space heating boiler equipment
- It consists of an iron body construction with expanded outlet drain connections for hot water space heating boilers, non-metallic disc-to-metal seating, stainless steel spring, and test lever
- It offers large discharge capacity, resists corrosive water conditions, resists sticking and freezing, and prevents water and sediment from being trapped in the seat
- It is designed for emergency safety relief, not as an operating control
- The pressure relief is set at 30 PSI ( 2068 kPa) with corresponding high pressure ratings up to 1,300,000 BTU/hr
| Body Type | Iron — Bronze Outlet | |
| BtuH | 1,300,000 | |
| Conn. Size | 1″ | |
| Inlet Conn. | 1″ | |
| Model # | 740-030 1 | |
| Outlet Conn. | 1-1/4″ | |
| Pressure Setting | 30* | |
| Shipping Weight | 2.90 | |
| Shipping Weight | 4.00 | |
| Shipping Length | 7.80 | |
| Shipping Height | 3.70 |
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