Application - TEWASPRAY

TEWASPRAY products were widely used in the fire sprinkler sprinkler system,the water flow switch shall respond to water flow in the specified direction after a preset time delay that is field adjustable and pressure switch shall be actuated and alarm next device when there is a condition fire. The supervisory switch can be used to monitor fire protection valves tosupervise it's in correct position.

ZONE CONTROL ASSEMBLY

Zone control assembly are designed to operate utilizing electrical service for actuation.A sprinkler system must be capable of shut down after the fire has been controlled,and for periodic maintenance and modification.Control valves can provide this function.In the simplest system a single shut-off valve may be located at the point wherethe water supply enters the building.Zone Control Assembly is to...

SUPERVISORY SWITCH OF PRETECTION VALVE

Supervisory switch is used to monitor the open position of an OS&Y (outside screw and yoke) typegate valve. Switches shall be mounted so as not to interfere with the normal operation of the valveand shall be adjusted to operate with two revolutions of the valve control or when the stem has moved no more than one-fifth of the distance from its normal position.

ALARM VALVE AND PRESSURE SWITCH

he alarm check valve is a water flow alarm device designed for vertical installation in the mainsupply to a wet pipe sprinkler system. When a flow of water from the system equals or exceedsthat of a single sprinkler, the valve is to actuate a fire alarm.The pressure switch shall be actuated when the alarm line pressure rised.