What the SKF 24-0159-6024 Is
The SKF 24-0159-6024 is the universal piston detector for VPK and PSG1 series progressive lubrication distributors. It installs into the distributor body through a pressure-resistant adapter and senses each piston movement magnetically without contacting the piston or the pressurized lubricant. The detector outputs an electrical pulse for every completed piston stroke, allowing a controller or PLC to confirm that the divider is cycling correctly and to raise a fault if pulses stop or arrive too slowly.
SKF and Vogel are trademarks of their respective owners.
This is an aftermarket sensor, not manufactured, sponsored, or endorsed by SKF.
24-0159-6024 designations are for cross-reference identification only.
Specifications
| Part number | 24-0159-6024 aftermarket cross-reference |
| Type | Universal piston detector, 3-wire DC |
| Distributors | VPK and PSG1 progressive distributors |
| Supply | 10-36 V DC |
| Sensing | Magnetic non-contact through pressure-resistant adapter |
| Self-calibration | Yes |
| Mounting thread | M10 x 1 per VPK/PSG1 table |
| Cable socket | M12 x 1 in some documentation |
| Pressure | 350-400 bar per documentation, confirm drawing |
| Housing | Stainless steel 1.4016 |
| Active area | 1.4404 |
| Plug material | PEI |
| Temperature | Approximately -40 to +85 degrees C |
How the Detector Reads the Divider
The detector senses the piston magnetically through the closed adapter wall, so there is no contact with the piston and no contact with the pressurized lubricant. Each completed piston movement produces one electrical pulse sent to the controller. The controller or PLC uses these pulses to confirm the divider is cycling, count strokes, and raise a fault if pulses stop or arrive too slowly, which can indicate blockage, an empty reservoir, pump failure, or a stuck piston.
Universal 3-Wire or Bipolar 2-Wire
The 6024 is the 3-wire DC version with a supply range of 10-36 V DC and suits fixed installations with conventional controller inputs. It is the version to choose when cable-break monitoring is required. Match the interface, PNP sourcing or other, to the controller wiring.
The 24-0159-6022 is the 2-wire bipolar version for the same distributor family. Signal voltage can be applied to either of the two pins, which suits mobile equipment such as vehicles, agricultural machinery, and construction machinery where polarity or plug orientation is less convenient. It offers no cable-break monitoring.
Sibling detectors for other families include the 24-0159-6025 for VP and PSG2 distributors and the 24-0159-6026 for PSG3 distributors. Different distributor families need different detector numbers and adapters. The detector alone is not universal across brands or families.
The M10 x 1 Thread and the M12 Socket
The VPK/PSG1 documentation table lists an M10 x 1 detector mounting thread. M12 x 1 refers to the cable socket arrangement in some documentation, not the mounting thread. Do not confuse the two, and confirm against the current drawing before installation.
Related Parts
For complete distributor assemblies, see the VPKM modular progressive distributors line. These distributors accept piston detectors for cycle confirmation and fit multi-point lubrication layouts.
For downstream confirmation of lubricant movement, consider flow monitors. A piston detector confirms divider cycling, while a flow monitor helps verify actual lubricant delivery beyond the divider.
For system-level information, review our guide to centralized lubrication systems. To request pricing or check compatibility, use the quotation form and a support engineer will respond.
Frequently Asked Questions
What is this detector?
It is an aftermarket replacement piston detector cross-referenced to SKF 24-0159-6024. It confirms mechanical cycling of VPK and PSG1 progressive distributors.
Which distributors does it fit?
It fits VPK and PSG1 progressive lubrication distributors. Other distributor families need different detector numbers and adapters.
How does it sense without contact?
It installs through a pressure-resistant adapter and senses the piston magnetically. The detector never contacts the piston or the pressurized lubricant.
What is the pulse signal used for?
Each completed piston movement produces one electrical pulse. The controller counts pulses and raises a fault if they stop.
Should I choose the 6024 or 6022?
The 3-wire 6024 suits fixed installations and supports cable-break monitoring. The 2-wire 6022 suits mobile equipment with less convenient polarity.
Which detector fits other distributor families?
The 24-0159-6025 fits VP and PSG2 distributors. The 24-0159-6026 fits PSG3 distributors.
Is manual adjustment needed after install?
No manual sensing-distance adjustment is needed. The detector self-calibrates over several distribution strokes after installation.
What pressure rating applies?
SKF documentation shows 350 bar in VPK documentation and 400 bar in secondary listings. Use the rating from the applicable drawing for your adapter and distributor combination.
What should I check when there is no signal?
Confirm the correct VPK/PSG1 adapter and seating, distributor family, and supply. Check wiring and pinout, controller input type, and run several strokes for self-calibration.
How do I order or get support?
IsoHiTech Lubrication Systems, founded in 2023, engineering since 2006, builds and supports every unit. Email inquiry@isohitech.com for specifications and a quotation.
Use the quotation form to start an order. A support engineer will confirm the distributor family and wiring.
