Hancock Flow Control Blowdown Valve
Hancock Type 5525/5535 Flow Control Valve is a combination valve and flow control instrument equipped with a special micrometer dial and pointer which enable the operator to set the valve opening to within one hundredth of a turn of the handwheel. Any desired setting can be instantly duplicated. Each valve is fitted with a scientifically designed V-Port valve disc ensuring proportional flow throughout the entire lift of the stem. It is a hand-operated valve with a straight line flow characteristics. A separate shut-off seating surface, removed from the controlling V-Ports, eliminates the necessity of using a second valve for shut off purposes.