Siemens 658-0012 2-Way Angle Union Valves,
This Powertop 2-Way Angle Union Valve is designe to control the flow of steam,
water and ethylene glycol solutions with normally open action.
This valve is 1″ in size, has a flow rate of 10 Cv,
a spring range of 2 to 6 psi,
and an equal percentage flow characteristic.
Other features of this valve include an actuator that can rotate to facilitate piping control from different directions,
equal percentage plugs and long stroke for controllability,
and a large diaphragm area for control accuracy and tight close-off.