174A-135 1 1/4
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This 1 1/4 inch boiler pressure relief valve is used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a bronze body construction with NPT threaded female inlet and NPT threaded female outlet (drain) connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. It resists corrosive water conditions, 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 135 psi (551.6 kPa) with corresponding high pressure ratings up to 5,758,000 BTU/hr.
Features
- Spring loaded
- Soft seated
- Bronze body
- Automatic reseating
| Specifications | |
|---|---|
| Body Material | Bronze |
| Brand | Watts |
| EAN | 098268013801 |
| Inlet Connection Size | 1 1/4 IN |
| Inlet Connection Type | Female Threaded |
| Inlet Thread Type | NPT |
| Lead Free | NO |
| Maximum Working Pressure-PSI | 101 |
| Outlet Connection Size | 1 1/4 IN |
| Outlet Connection Type | Female Threaded |
| Outlet Thread Type | NPT |
| Part Number | 0276054 |
| Pressure Range | 30 to 150 PSI |
| Pressure Relief Setting-PSI | 135 |
| Series | 174A |