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When ordered as part of a meter system with a Register, Liquid Controls control valves are bolted onto the meter and wired to the Register at the factory. Electronic control valves can also be ordered separately and retrofitted onto meter systems already in service. These valves will need to be piped and wired in the field. For piping instructions, refer to the valve manual. This manual includes wiring instructions for the valves.

 

Liquid Controls offers single-stage and two-stage electronic valves. Single stage valves have one solenoid valve (S1) and two positions—an open position and a closed position. Two-stage valves have two solenoid valves (S1 & S2) and three positions—open, closed, and dwell flow. Dwell flow is a low flow rate setting controlled by the S2 solenoid and initiated shortly before the register reaches a preset value.

 

 

This chapter covers:

 

•Single-Stage Valves

•Two-Stage Valves

•Valve Installation