Work Supports / Double Acting, Position Sensing
Position Sensing Circuit Design and Parameters
Recommended Pneumatic Circuit Design n Use Vektek Air Sensing Control Kit (Model # 50-8240-00). n Parallel circuit design with minimum of 0.125" inside diameter feed line size. n Circuit design should be simple and free from flow restrictions that can cause excessive pressure drop. n The maximum number of Return Position Sensors in one circuit is a function of the circuit design and pressure drop over the length of the
Air Sensing Control Kit 50-8240-00
B-26
Air Pressure Sensor Switch
Gauge
Work Supports With Return Position Sensors
Air Supply
Flow Control Valve
Air Pressure Regulator
circuit path. Vektek has tested 10 devices plumbed in parallel with excellent results.
ILS100218 REV B
Recommended System Setup: n Set air pressure regulator to 12 psi when all Work Supports in the system are in the retracted position. n Adjust and set air flow control so that air
Return Position Sensor Logic
pressure falls to 3 psi when the work support at the furthest point of the pneumatic circuit is in the extended position and all other supports in the circuit are retracted.
n Set the air pressure sensor “Retract” switch point to 10 psi. n Set the air pressure sensor “Extend” reset switch point to 5 psi.
Work Support Position
Custom Contact Spring Cavity Dimensions
Standard Spring
Wire Ø
Free Length
Rate (lbs/in)
Work Support Series
A B C D OD
10-0208-00 1.13 0.51 0.46 0.38 0.48 0.045 1.50 10-0208-01 1.69 0.51 0.46 0.38 0.48 0.051 2.25
9.4
9.3 10-0212-00 1.13 0.68 0.62 0.47 0.59 0.055 1.56 10.0 10-0212-01 1.78 0.68 0.62 0.47 0.60 0.059 2.5 9.6
NOTE: Vektek recommends only 17-7 stainless steel springs. Too light of custom spring force may not actuate the plunger, especially if a custom contact bolt is used. Too heavy of a custom spring may cause damage to the device’s internal components. Vektek cannot guarantee that custom springs will provide proper plunger actuation.
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800-992-0236
© Vektek, January 2023
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