Product Description :

The Model DDX deluge valve is a hydraulic piston-operated, mechanical-type deluge valve. The valve is designed for use as a primary control valve in the deluge, reaction, or special types of fire protection systems. Following the operation, the valve can be reset externally.

When the side chamber of the Reliable Model DDX Deluge Valve China is pressurized. The hydraulic supply pressure acts on the piston and pushrod assembly and simultaneously on the underside of the clapper. The resultant force of the supply pressure acting on the piston/pushrod is multiplied by the mechanical advantage of the lever . It is more than sufficient to hold the clapper closed against normal supply pressure surges.

When a releasing device vents the pushrod to the atmosphere through the chamber’s outlet. The pushrod chamber pressure falls instantaneously.

Features :

• Straight through design, low friction loss.
• Mechanical valve with latching clapper.
• The intermediate chamber is built into the seat.
• The deluge valve is Externally resettable