Description
Damcos VPI-C 160G0422 Valve Position Indicator
Product Overview
The Damcos VPI-C 160G0422 is a valve position indicator used in Damcos hydraulic valve remote-control systems. Its purpose is to provide position feedback from a remotely actuated valve so that valve status can be monitored at the control station or incorporated into the vessel’s valve-control architecture. Unlike the hydraulic actuator itself, the VPI-C is primarily a position-feedback component. It does not generate the hydraulic force required to move the valve. References consistently identify 160G0422 as the VPI-C Valve Position Indicator within the Damcos product family.
The Damcos VPI-C 160G0422 is associated with a 1:150 gear ratio and a maximum continuous load of 0.2 W in available technical listings. The low-power characteristic is significant when the indicator is integrated into sensitive valve-position feedback circuits, particularly on marine installations where long control-system wiring and limited interface power can matter.
In practical terms, the VPI-C sits between the mechanical position of a Damcos-controlled valve and the vessel’s monitoring/control system. It should therefore be evaluated together with the actuator, valve interface, position-feedback wiring, and associated VRCS electronics. A replacement VPI from another Damcos variant should not be approved simply because the housing looks similar. The VPI-C, VPI-E, and VPI-V designations represent different indicator arrangements, and the exact feedback interface must match the existing installation.
Product Introduction
Valve control becomes difficult to troubleshoot when the hydraulic actuator moves correctly but the control system receives an incorrect position signal. The Damcos VPI-C 160G0422 addresses that feedback layer by translating valve movement into position indication for the associated remote-control system. The documented 1:150 gear ratio and 0.2 W maximum continuous load are useful identifiers when checking an existing installation.
For a Damcos VRCS retrofit or legacy replacement, the important task is matching the complete position-indicator arrangement, not merely the 160G0422 number. Confirm the actuator interface, mechanical mounting, feedback wiring, indicator version, and original system documentation before installation.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer / Brand | Damcos / Danfoss System Hydraulik |
| Model | VPI-C |
| Part Number | 160G0422 |
| Product Type | Valve Position Indicator |
| Product Family | Damcos VPI |
| Primary Function | Valve position indication / feedback |
| Application | Damcos Valve Remote Control System |
| Gear Ratio | 1:150 |
| Maximum Continuous Load | 0.2 W |
| Output | Electrical position feedback |
| Communication Protocol | None; position-feedback interface |
| Firmware | None |
| Installation | Integrated with compatible Damcos valve/actuator position-indication assembly |
| Hydraulic Actuation | Provided by associated actuator, not by the VPI-C |
| Operating Temperature | Exact specification not sufficiently verified |
| Protection Rating | Exact specification not sufficiently verified |
| Maximum Working Pressure | Exact specification not sufficiently verified for the complete VPI-C assembly |
The 1:150 gear ratio and 0.2 W maximum continuous load are repeatedly associated with the 160G0422 VPI-C in available product references. Other commercial sources publish additional values such as pressure and temperature limits, but these have not been treated as confirmed specifications for the exact assembly.
Damcos VPI-C 160G0422
Major Features / Practical Advantages
Dedicated valve-position feedback
The primary purpose of the VPI-C is position indication. It allows the remote-control system to determine the position of the associated valve rather than relying solely on a hydraulic command being issued to the actuator.
That distinction is important during fault diagnosis. A valve can receive the correct hydraulic command while its feedback mechanism, mechanical linkage, or electrical circuit fails. The VPI-C belongs to that feedback chain.
1:150 mechanical ratio
The documented 1:150 gear ratio is one of the most useful identification characteristics for procurement. It should be compared with the existing VPI assembly before replacement because position-indicator versions can have different mechanical arrangements.
Low-power feedback circuit
A maximum continuous load of 0.2 W is associated with the VPI-C 160G0422. This is particularly relevant when the indicator is connected to a low-power monitoring or feedback circuit. The replacement interface should therefore be checked electrically rather than assuming that any general-purpose position sensor will work.
Designed for Damcos VRCS installations
The VPI-C is listed alongside Damcos hydraulic actuators, solenoid valves, local power units, and other valve-control components. This places it within a dedicated marine hydraulic valve-control ecosystem rather than the general PLC instrumentation category.
Useful for legacy marine equipment
The 160G0422 reference continues to appear in Damcos spare-parts inventories and marine automation applications. That makes it relevant when maintaining older vessel valve remote-control systems where the original feedback hardware must be preserved rather than redesigning the entire control chain.
Related Products
- Damcos VPI-E 160G0421 — another Damcos Valve Position Indicator variant; the model should not be assumed electrically or mechanically interchangeable with VPI-C.
- Damcos VPI-V 160G0529 — VPI variant intended for valve position indication; documented with a different 250:1 gear ratio in available references.
- Damcos VPI — broader valve-position-indicator family used in Damcos valve remote-control systems.
- Damcos BRC — balanced rotary actuator family that provides the hydraulic movement being monitored by position-indicator hardware.
- Damcos BRCF — single-acting spring-return rotary actuator family.
- Damcos LPU — local power-unit family used with Damcos hydraulic valve-control arrangements.
- Damcos MD1D — solenoid-operated directional-control valve family used in hydraulic valve-control circuits.
- Damcos PD 622 — P-NET interface hardware associated with Damcos electronic valve-control systems.
FAQ
What is the Damcos VPI-C 160G0422?
It is a Damcos Valve Position Indicator used to provide position feedback for valves in Damcos hydraulic valve remote-control systems.
What is the gear ratio of 160G0422?
Available technical references identify the VPI-C 160G0422 with a 1:150 gear ratio.
What is the maximum continuous load?
The published value associated with the VPI-C 160G0422 is 0.2 W maximum continuous load.
Is VPI-C an actuator?
No. The VPI-C is a position-indication component. The hydraulic actuator supplies the mechanical movement that the indicator monitors.
Can I replace VPI-C 160G0422 with VPI-E 160G0421?
Do not assume direct interchangeability. Both are Damcos VPI-family components, but their exact feedback and mechanical configurations need to be matched to the installed valve actuator and control system. The 160G0421 is separately identified as VPI-E, while 160G0422 is VPI-C.
Can I hot-swap the VPI-C?
No. This is not a plug-in electronic I/O module. Replacement involves the physical valve/actuator feedback assembly. The associated valve-control equipment should be placed in the appropriate maintenance condition, and mechanical movement and electrical feedback circuits should be isolated according to the vessel’s procedure.
Does the VPI-C have firmware?
No. The VPI-C is a position-indication device rather than a programmable controller. There is no user firmware version or PLC configuration associated with the indicator itself.
Does the 160G0422 provide 4–20 mA output?
Available sources identify the unit as an electrical valve-position indicator, but the exact signal-conditioning arrangement for a particular 160G0422 installation is not sufficiently documented in the public material reviewed. Do not assume a 4–20 mA interface without checking the original wiring diagram and associated Damcos electronics.
What should I check before purchasing a replacement?
Confirm the VPI-C model, 160G0422 part number, gear ratio, complete indicator assembly, actuator interface, mechanical mounting, feedback wiring, and actual electrical interface. For an older vessel, photographs of the installed indicator and its nameplate are worth obtaining before ordering.
Procurement Note
The Damcos VPI-C 160G0422 is a relatively small component, but its position in the valve feedback chain makes correct identification important. A replacement that fits mechanically but produces the wrong feedback behavior can create a misleading valve-status indication.
Before approving procurement, verify:
- Damcos VPI-C model marking.
- 160G0422 part number.
- 1:150 gear ratio.
- 0.2 W maximum continuous load requirement.
- Mechanical connection to the existing actuator.
- Valve rotation and indicator travel.
- Electrical feedback wiring and interface.
- Associated Damcos VRCS hardware.
- Physical condition and evidence of testing.
- Whether the supplied item is the indicator alone or a complete VPI assembly.
One practical point: listings for 160G0422 sometimes describe the item as a complete indicator assembly, while other listings show the VPI-C together with additional assembly components. Confirm exactly what is included in the supplied unit before comparing quotations.
For legacy marine valve-control systems, matching the installed mechanical and electrical feedback arrangement is more important than matching the general description “valve position indicator.”
