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ECPV-375B Pinch Valve, 3/8 ID x 5/8 OD tubing

Price: $ 384.00
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Part Number: 1182
Usually ships in: 2-3 weeks
Shipping weight: 6.00 lbs

  • 4-20mA or 1-5VDC control signal
  • Proportional flow control
  • Uses customer-supplied tubing
  • Zero backlash
  • 200 positions over full range
  • Direct drive without gears
  • For 5/8 inch OD tubing

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The ECPV-375-B Electronically Controlled Pinch Valve is a computer-controlled pinch valve which directly accepts a 4-20 mA or 1-5 VDC control signal. The ECPV accurately controls the flow of high-purity fluids, slurries, and other liquids and gases in pharmaceutical and biotechnology environments.

Customer-supplied tubing is inserted through the valve and connected to the process. The stainless steel rounded pinch element moves in 0.001 inch increments to precisely squeeze the tubing for accurate, proportional control.

High resolution produces outstanding process control. This is achieved by using a 8-bit analog-to-digital converter to process the control signal. A digital filter removes noise from the signal. The microprocessor converts the control signal to a valve position and directs the 200 step per revolution DC step motor to rotate a threaded stem. The pinch element moves up and down on the threaded stem to proportionally pinch the tube.

The ECPV has no backlash and no hysteresis. This greatly simplifies control programs. The valve is opened and closed by a zero-backlash screw mechanism. The step motor is directly connected to the valve without gears. The valve can also be operated manually.

Each valve comes complete with actuator and valve, mounting bracket, and instructions. Power supply, control signal and tubing are not included.

The reliable, low-maintenance design and heavy-duty construction reduce costly downtime.

All Hass Manufacturing products are backed by a five (5) year warranty, free technical support, overnight delivery of repair parts, and a lifetime satisfaction guarantee.



Type: Single-board microcontroller
Control: Open-loop
Inputs: 4-20 mA current or 1 - 5 VDC voltage for position. Jumper selectable.
Input Impedence:
4-20mA selected: 250 Ohm
1-5 VDC selected: 3300 Ohm
Signal floats and has 1 MOhm isolation from analog circuit
Outputs: None
Modes: Full range, direct acting only
Digital filter on or off via jumper
Adjustment: None
Temperature: 32 F to 120 F (0 C to 49 C)
Humidity: 10 to 80% non-condensing
Enclosure: Stainless steel, general purpose
Power supply: 12-24 VDC, 1.5A (1043 Power Supply recommended)
Power: consumption 23 Watts maximum, 1 Watt typical


Type: DC step motor, 200 steps/revolution, 4 revolutions for full stroke
Resolution: 200:1 (0.5%)
Speed: jumper selectable: 60, 75, 100 and 150 steps/second
Torque: 57.5 oz-in peak


Type: Pinch,In-line
Tube size: 3/8 ID, 5/8 OD tubing
Stroke: Jumper selectable from 0.05 to 0.4 inch
Stroke time: Jumper selectable from 1.3 to 10.7 seconds
Number of turns: Jumper selectable, 1, 2, 4 or 8 turns, closed to full open
Pressure: Tubing dependent
Valve body material: Brass
Valve trim material: Type 303 stainless steel
Temperature: 0 - 250 Degrees F (-32 - 121 C)


Dimensions: 7.3 x 3.5 x 2.5
H x W x D

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Hass Manufacturing Company
371 NY Highway 351, Averill Park, NY  12018  USA
Tel (518) 674-8151  Fax (518) 674-8157

Information subject to change without prior notice.

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