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4
Specifications (contd.)
Valve Height
Valve Series
2-Way NC
2-Way NO
3-Way MP
075P
1.88" (48 mm)
2.19" (56 mm)
2.13" (54 mm)
100P
2.50" (64 mm)
2.81" (71 mm)
2.50" (64 mm)
150P
3.80" (97 mm)
N/A
3.78" (96 mm)
Enhancement Options
“Quiet” Option
Through the use of noise dampening materials on internal valve components, the noise generated at actuation of
the 075P and 100P pinch valves is reduced dramatically from approximately 72 dB to 52 dB. This optional feature
is recommended for applications in noise-sensitive environments, such as hospitals and certain laboratories.
Optical Sensor Position Feedback Option
An infrared optical sensor can be factory mounted on the pinch valve. The sensor detects the position of the valve
pusher/armature assembly and sends an electrical signal back to the controller confirming the open or closed valve
position. With no moving parts, this sensor has been designed for virtually unlimited life.
Available valve configurations: 100P series valves with normally closed and 3-way configurations. Not
available with normally open valves. 12 VDC and 24 VDC versions are offered.
Wiring: The entire valve and sensor assembly requires only three electrical wires:
: positive lead wire : negative lead wire : sensor feedback wire
Feedback signal:
•
NC valve not actuated at 12 VDC or 24 VDC: tubing closed, 0 milliamp current on signal
wire.
•
NC valve actuated at 12 VDC or 24 VDC:
-
Tubing open: 0 milliamp current on signal wire.
-
Tubing closed (i.e. failure): 20 milliamp current on signal wire.
Dimensions: the optical sensor adds 1 inch (25 mm) to the height of the pinch valve.