Price: $ 425.00
The EPV-SS-1RS4 Electronic Proportional Valve is a low-cost, computer-controlled proportional valve which directly accepts a 4-20 mA or 1-5V DC control signal. The EPV performs better, costs less to install and less to operate than competitive valves. It is ideal for accurate control of liquid and gas flow.
A new control algorithm closes the valve on power-up with reduced torque then uses full torque for operation. This allows tight shut-off without sticking.
The EPV has no backlash and no hysteresis. This greatly simplifies control programs. The valve is opened and closed by a zero-backlash screw mechanism. A step motor is directly connected to the valve without gears. The valve can also be operated manually.
An adaptive digital noise filter eliminates dithering of the valve due to noisy control signals. This digital filter can be disabled via a switch on the circuit board.
The EPV actuator is connected to a high-quality needle valve by a stainless steel bellows coupling.
The compact size of the EPV makes it easier to handle, and allows it to be installed in smaller spaces. The EPV is about one-third the size of a pneumatic valve.
An EPV installation costs less than a comparable pneumatic control valve system. There is no need for compressed air, filters, regulators, I-P converters, or pneumatic air lines. Simply connect the EPV to the control signal and the power supply.
The EPV is backed by a five (5) year warranty. The reliable, low-maintenance design and heavy-duty construction reduce costly downtime.
The EPV-SS-1RS4 is made from type 316 stainless steel. It has 1/4 inch Swagelok fittings with a 0.172 inch port size and a Cv of 0.3.
Try our interactive valve sizing calculator to help you select the correct valve for your application.
The old instruction manual can be found here.
Updated March 1, 2016
Type: DC step motor, 200 steps/revolution, 4 revolutions for full stroke
Type: Needle, In-line
Dimensions: 8.0 x 3.5 x 2.5
Information subject to change without prior notice.
Copyright ©2022 Hass Manufacturing Company. All rights reserved.