Damcos / Danfoss Valve Position Indicator VPI-E With Gear Ratio 1:0040
Damcos / Danfoss Valve Position Indicator VPI-E With Gear Ratio 1:0040Basically the valve position indicator is a precision gear motor with a display indicating the flow of a certain oil volume through the unit. The gear wheels rotate according to flow and flow direction of the fluid. A built-in mini gear box with a gear ratio chosen to suit the actuator displacement in question transfers the gear motor movement to the indicator shaft. There is no mechanical connection between the gear motor and the indicator shaft. The rotary movement of the hydraulic gear wheels is transferred to the indicator shaft by a magnetic clutch. This eliminates possible external leakages. An indicator arrow moves within a scale angle which is adjustable between 75° and 200°. A small indicator disc (flow indication) mounted firmly on the indicator shaft serves as leakage indicator.
Versions The VPI indicator is available in 5 versions:
VPI-V: Visual indication
VPI-E: Visual + electrical open/closed indication (switches)
VPI-C: Visual + electrical analog (potentiometer) indiction
VPI-CE: Double electrical function C+E
VPI-EE: Double electrical function E+E