| Actuator Type | : | Lever Handle |
| Body Material | : | Iron |
| Connection Type | : | FNPT |
| Dimensions | : | 2-1/2 in L x 3-1/2 in H |
| Nominal Size | : | 3/4 in |
| Pressure Rating | : | 30 psi |
| Seat Material | : | Metal |
| Series | : | 374A Series |
| Temperature Rating | : | 250 deg F |
This 3/4 in pressure relief valve is used in hot water boiler applications to protect against excessive pressure on all types of hot water heating boiler equipment. It consists of a iron body with forged bronze inlet, non-metallic disc to metal seating and stainless steel spring. This valve 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 and should not be used as an operating control. The pressure setting is 30 psi for applications up to 550000 Btu/hr.
WATTS® Boiler Pressure Relief Valve, 374A Series, 3/4 in Nominal, FNPT Connection, 30 psi Pressure, Lever Handle Actuator, Iron Body, Metal Seat, 250 deg F, Dimensions: 2-1/2 in L x 3-1/2 in H
- 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