All Categories > Systems > Bladder Tanks > 2005
The standard hydraulic actuated valve assembly consists of a factory assembled and tested quarter turn full port ball valve to which a hydraulic actuator has been attached. The ball valve has a bronze body with 316 stainless steel ball and stem, or is of all stainless steel construction. Valve seats are glass-reinforced TFE. Inlet and outlet threads are female NPT and flanges are ANSI Class 150. All valves are rated 600 psi WOG. Stainless steel flanged valves are rated 285 psi WOG.
The hydraulic actuator is mounted directly to the ball valve using a mounting bracket. The housing of the actuator has a corrosion resistant exterior with a two-part epoxy coating providing extra protection against aggressive environments. The interior has a long life epoxy or of PTFE finish protecting all body parts against wear and corrosion. The hydraulic actuator is equipped with a visual valve position indicator and has the capability for manual override using a free handle, secured to the valve body with a length of chain. Water to drive the valve open is fed to the hydraulic actuator through ¼-inch to 1/2-inch pipe or tubing. A connection from the sprinkler system is usually made from a normally unpressurized port, such as the water motor alarm line on the alarm or deluge valve to power the hydraulic actuator. The water inlet to the hydraulic actuator is provided with a “Y” strainer and shut-off valve to allow depressurizing and resetting of the valve after use. In the event electric operation is required or preferred, a solenoid release is installed in the water supply line to the actuator, which will, on system actuation, allow water to flow into the actuator body and open the valve.
The Chemguard hydraulic concentrate control valve is designed for use with either a bladder tank or a balanced pressure proportioning system. The valve is used to automatically open the line supplying foam concentrate to a ratio controller. Except for those valves ordered with an electric solenoid, electrical power is not required for operation, only water pressure from a system that has been activated.
NOTE 1: If normal water supply pressure to actuator operating the valve is above 120 psi (8.3 bar), a water regulator (Part Number 7001)Is recommended to reduce actuator inlet pressure so that it does not exceed 120 psi (8.3 bar). Excessive water inlet pressure to the actuator can cause damage to the valve stem.
Note: Dimensions subject to change without notice.