Aftermarket VPKM Modular Progressive Distributor
This page describes an aftermarket modular progressive distributor that cross-references the SKF VPKM. SKF is a trademark of its respective owner. This is an aftermarket distributor, not manufactured, sponsored, or endorsed by SKF. VPKM designations are for cross-reference identification only. The VPKM is a sectional progressive metering device for oil or grease. It feeds each point in a fixed order, and a blockage anywhere stops the cycle for fault indication.
Sections and Outlets
| 3 sections | 6 outlets |
| 4 sections | 8 outlets |
| 5 sections | 10 outlets |
| 6 sections | 12 outlets |
| 8 sections | 16 outlets |
| 10 sections | 20 outlets |
| Outlets per section | 1 or 2 |
Metering Volumes
T sections deliver about 0.05 cm3 per cycle per outlet. S sections deliver about 0.6 cm3 per cycle. Sections can be mixed to build different dose maps, so a single distributor can give a small dose to a lightly loaded bearing and a larger dose to a heavily loaded one. Max flow is 500 cm3/min. Max cycles are 200 per minute.
The dose map matters more than the outlet count when points have different needs. Record the section order and the outlet assignment of the existing distributor before ordering a replacement. A replacement with the same section mix keeps the delivered volumes per point unchanged.
Pressure and Lubricant
Oil systems operate from 30 to 200 bar. Oil with solenoid valve operates up to 150 bar. Grease systems operate up to 300 bar. Oil viscosity minimum is 12 cSt, with 20 to 1000 cSt as the recommended range. Grease can be NLGI 0, 1, or 2. Temperature range is -25 to +90 C.
VPKM and VPKG Threads
VPKM uses M10 x 1 metric inlet and outlet. VPKG uses G 1/8 inch threads. The thread version is fixed on each body, so an adapter is needed if the tubing standard differs. Match your existing tubing and fittings before ordering to avoid reworking lines. See the VPK system guide.
What to Confirm Before Ordering
Confirm section count and outlet count. Confirm T or S section mix. Confirm thread standard VPKM metric or VPKG inch. Confirm lubricant and pressure rating for your fluid. For more detail on system layout see progressive lubrication systems. If you are not sure about your configuration you can contact the team.
Frequently Asked Questions
What is the difference between VPKM and VPKG?
VPKM uses metric M10 x 1 threads. VPKG uses G 1/8 inch threads.
How many outlets can this distributor have?
Outlet count runs from 6 to 20 outlets. The count depends on section count.
What is the difference between T and S sections?
T sections meter about 0.05 cm3 per cycle. S sections meter about 0.6 cm3 per cycle.
Can sections be mixed on one distributor?
Yes, T and S sections can be mixed. This builds the dose map you need.
Can this distributor run oil or grease?
It can run oil or grease. Pressure ratings differ by lubricant type.
What happens if a point blocks?
The full cycle stops at the blocked point. This gives a fault indication for service.
Can I add sections later?
Modularity is part of the design. Confirm the new section configuration before you order.
What pressure rating applies for grease?
Grease systems operate up to 300 bar. Match this to your grease type.
What is the minimum oil viscosity?
Minimum oil viscosity is 12 cSt. Recommended range is 20 to 1000 cSt.
Who builds this distributor, and how do I get a quotation?
IsoHiTech Lubrication Systems, founded in 2023, engineering since 2006, builds and supports every unit. Email inquiry@isohitech.com for specifications and a quotation.
Contact the team with your section count and thread type.
