Two Stage Digital Control Valves

We are Manufacturer, Supplier, Exporter, Services Provider of Two Stage Digital Control Valves and our setup is situated in Pune, Maharashtra, India. Two Stage Digital Control Valve specifically designed for liquid loading systems and performs the following functions:

  • Rate of flow control – valve will modulate as necessary to prevent set point from being exceeded.
  • Two-stage shutdown for perfect batching.
Principle Of Operation

Typical Control Systems consist of three primary pieces of equipment: Flowmeter, Preset Batch Controller, and two-stage digital shut-off valve. The meter is the primary flow measuring device. The preset batch controller is used to determine the volume of liquid to be controlled by the valve at predetermined batch quantity setting. The sequential logic of the batch controlling mechanism control the solenoid pilots of the control valve.

The control valve is designed to close in two dist inct stages. As the preset counter reaches the pre-defined quantity, it closes the main valve & the first stage closure reduces the flow rate through the valve to minimum flow rate for safe stop at preset quantity.

Approximately 10 to 20 percent of the rated capacity of the meter. The preset trips the sequencing logic control output and the valve closes.

For instance, you may want one hundred Liters in a particular batch. You may also want a valve to close and slow down flow 25 Liters before the end. Your preset is 100, your Pre-warn is 25. When the start is activated, the valves energize simultaneously to start flow. When the totalizer reaches 75, the pre-warn solenoid valve drops out. When the totalizer reaches 100 the preset valve drops out. The preset values can be viewed or changed via the menu (when stopped).


Vermont make Two-Stage Valve is normally closed and designed for precise, accurate control and shut-off of batching operation. The valve controls a predetermined amount of product to guarantee smooth, positive shut-off.

Model Features
  • Opens on signal from preset Batch Controller
  • Limits the flow rate to meter capacity (adjustable)
  • Closes in two stages based on signals from preset Controller
  • Can be maintained without removal from the line
  • Factory tested and can be pre-set to your requirements
  • Modular Construction.
  • Fail-safe mode of operation.
  • Cable Entry : 3/4" B.S.Con., 4 nos.
  • Operating Environment Temperature : -20 °C to +60 °C
  • Humidity : 0 to 95% RH, non-condensing
  • Two-stage Digital control valves are suited for those Applications which require precise shutoff, such as truck or railcar loading or similar process batching operations.
  • Model : 2 DCV-AV-50
  • Type : 2 Way Solenoid Valve-AVCON
  • Action on De-energization : Normally Closed
  • Operation : Pilot Operated, Diaphragm
  • Body Material : CF 8M (SS316)
  • Internal Parts : S.S. 316
  • Diaphragm / Seat Material : VITON
  • Magnetic Construction : AISI430F Series
  • Body Size/Orifice : 2" / 50mm
  • Body Connection : Screwed to BSP
  • Operating Pressure Range(Bar(g.) : 0.5 - 10 Bar(g) 150 psi max.
  • Coil Voltage : 230 V AC 50 Hz
  • Operating Temp. Range(°C) : 0.00 to 150.00°C
  • Coil Enclosure : FLP-IIC Enclosure
  • Coil Class / Insulation : H
  • Coil Type : Molded
  • Coil Terminals : Screwed
  • Coil Power Rating : 18 VA/12 Watts
  • Cable Entry / Material : 1/2" NPT
  • Coil Voltage : 230 V AC 50 Hz