| Actuator Type | : | Lever Handle |
| Body Material | : | Copper Silicone Alloy |
| Connection Type | : | FNPT |
| Dimensions | : | 2-3/4 in L x 4-1/2 in H |
| Media | : | Water |
| Nominal Size | : | 3/4 in |
| Pressure Rating | : | 125 psi |
| Series | : | LF174A Series |
| Temperature Rating | : | 250 deg F |
This 3/4 in lead-free 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 is designed for emergency safety relief, not as an operating control. It consists of a lead-free body construction with FNPT threaded inlet and FNPT threaded 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. The pressure setting is 125 psi (862 kPa), with corresponding ratings of 2070000 Btu/hr.
WATTS® Water Pressure Relief Valve, LF174A Series, 3/4 in Nominal, FNPT Connection, 125 psi Pressure, Media: Water, Lever Handle Actuator, Copper Silicone Alloy Body, 250 deg F, Dimensions: 2-3/4 in L x 4-1/2 in H
- Safety relief valves for pressure protection only of all types of hot water heating boiler equipment
- Seat located above drain, water can't be trapped and sediment can't foul seat
- Non-mechanical seat-to-disc alignment will not stick or freeze
- Water seal of high-temperature resisting material isolates spring working parts from water during relief
- Non-metallic disc-to-metal seating
- 2070000 Btu/hr nominal capacity