Automatic Control Valve

The Nutech ACV models F200 and F2200 are single chamber basic valves that incorporated a e-pies and diaphragam assembly. This assembly is the only moving part within the valve allowing it to open, close or modulated as commanded by the pilot control system.

Pressure Relief Valve : 200

Pressure Sustaining / Check – Differential Pressure Sustaining / Check / Solendoid on/off

Valve Function :

Maintain Constant upstream pressure (inlet to outlet) by relieving excess pressure.

Installed on by-pass line, mainline pressure is accurately controlled by relief of excess pressure. Installed in a mainline it prevents upstream pressure from dropping below a present minimum.

Installed in a mainline it prevents upstream pressure from dropping below a preset minimum. Solenoid override of sustaining function allows for electrical on-off operation.

Pressure Reducing valve – 300

Pressure Sustaining / Check – Surge / Solenoid on/off / low Flow By-Pass

Valve Function :

Reduces Higher inlet pressure to constant lower outlet pressure (Adjustable)

Automatically reduces a higher inlet pressure to a constant lower outlet pressure regardless of changing flow rate and/or varying inlet pressure. Refer to ACV – 300 for dead-end equipment.

Pressure Reducing / Rate of flow – 400

Valve Function :

Limit flow rate to a constant present maximum (Adjustable). Maintain a constant flow rate, adjustable, regardless, of functions in line pressure. The rate of flow pilot senses the diffrential pressure across a thin edged orifice plate mounted in the valve inlet flange. It responds to changes in pressure and modualates the main valve to maintain the desired flow.

Modulting-Float Valve : 500

Valve Function :

Maintains a constant liquid level in a tank.
Remote mounted pilot is sensitive to slight changes in level and controls main valve :
Opens when level drops
Closes when level rises
The ACV 500 maintains a constant level in storage tanks and reservoirs. Valve controlled flow into the tank is proportional to