The insert style Control Valve is designed to be installed between two flanges of a piping system. An inspection spool is recommended to allow removal of the control valve for routine inspection.

The Top Entry and Flanged Control Valves are designed to be mounted in the line as a part of the piping. The inspection spool allows the control valve to be removed easily for inspection.

Install with appropriate downstream safety device in accordance with all applicable regulations.

Standard instrumentation consist of a filter dryer, first and second stage regulation with appropriate relief valve. and a pneumatic controller. The pressure sense line should be mounted as far downstream as possible.

An amplifying relay is used when the pressure requirements for positive shut off exceed the controller output or when greater response time is required. The amplifying relay is mounted between the controller output and the diaphragm motor.

Instrumentation for flow control with pressure override consists of the standard instruments with a flow controller. orifice plate and high selector relay A more sophisticated dehydration assembly is also used.