Factory wholesale Flanged Forged Steel High Pressure Valves - Wet alarm check valve UL/FM Approved – BESTOP

Features: Installation height of the valve according to customer’s requirement; The valves could be installed indoor or outdoor through wall as to customer’s requirement; Electrostatic Spraying both inside and outside of the body.

The wet alarm valve is designed for applications where the water is unlikely to freeze. The water staying pressurized in the pipes is released over the fire area after the sprinkler is activated due to fire. The pressurized water system is not only feed continuously, but also fills in the retard chamber. After the chamber is filled, the pressure switch on the chamber is actuated. The pressure switch sends the alarm information to the fire warning system or the automation system. After the pressure switch is actuated, the water is delivered to the water-motor gong and releases a mechanical alarm.They are used in wet line of sprinkler system,fire protection system

Size:121mm*58mm*112mm
Pipeline entrance:Φ22.5mm
Working temperature:-40℃-60℃
Pressure connection Nylon 1/2NPT(R21/2)thread
Factory setting:5-7PSI
Max working pressure:250PSI
Environment specifications The dust proof and water proof level is IP66
Differential pressure: Generally 1 PSI
Certificates available: UL/FM

Size:1/4” NPT
Pressure:0-300PSI/0-600PSI
Working temperature:0℃-80℃
Design standard: UL393/FM2311
Test standard:UL393/FM2311
Certificates available: UL/FM

Pressure:0-300PSI
Working temperature:0℃-100℃
Design standard: FM1055
Test standard:FM1055
Certificates available: UL/FM

1.Long service life with resilient seat cycling test at least 5000 times
2.Full size range can satisfy with customer’s different requirement
3.Our own foundry to guarantee fast delivery and quality
4.Multiple O-ring sealing structure to protect the stem under pressure during operation and maintenance, it causes no damage to the operator.