SKF VPK Modular Grease Feeder System

Aftermarket VPK Modular Grease Feeder System

This guide covers the aftermarket VPK modular grease feeder system, cross-referencing the SKF VPK progressive metering family. SKF is a trademark of its respective owner. These are aftermarket feeder components, not manufactured, sponsored, or endorsed by SKF. VPK designations are for cross-reference identification only. The feeder takes lubricant from your main pump and meters the right amount to each point. The system is built from building-block sections, so you can size the feeder to the number of points you need to serve.

How the Progressive System Works

The pump sends pressure to the feeder. The first piston moves and feeds its outlets, then the next piston moves, and each piston operates in order until all points are fed. The cycle repeats from the first piston. No point is missed or overfed, because flow to each outlet happens in sequence. If a point or line is blocked, the cycle stalls so the blockage can be detected by a monitoring device.

Section Building Blocks

Oil and Grease Service

This feeder family works with both lubricant types. Grease up to NLGI 2 is typical for many installations. Oil viscosity and temperature affect cycling speed and reliable metering, so confirm the lubricant type and operating condition before ordering. The section mix and outlet count depend on whether the system is running oil or grease at the expected temperature.

VPKM or VPKG

The family comes in metric and inch thread versions. VPKM uses M10 x 1 port threads, and VPKG uses G 1/8 port threads. Match the thread version to your existing tubing and fittings. For the metric-thread product details, see the VPKM metric distributor page. For the wider system context, see progressive lubrication systems.

What to Confirm Before Ordering

Confirm the section count and outlet count for your lubrication points. Confirm the T and S section mix for your dose map, because the two section volumes are different. Confirm the thread version, metric or inch. Confirm pump flow and pressure so the feeder cycles correctly with your supply. Confirm whether you need the feeder alone or a complete loop with monitoring. Check your supply side at grease pump. If your point count or section mix is fixed, contact the team with the values before you order.

Frequently Asked Questions

How many points can one feeder serve?

One feeder serves 6 to 20 outlets depending on the section count. The outlet count is always two per section.

What is a section?

A section is a building block with its own piston and two outlets. Sections are added to reach the needed outlet 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 I change sections later?

The modular design allows reconfiguration of sections. Confirm the new configuration before changing an existing feeder.

What happens if a point is blocked?

The progressive cycle stalls when a point is blocked. The stall can be detected by a monitoring device.

What is the difference between VPKM and VPKG?

VPKM uses metric M10 x 1 threads. VPKG uses inch G 1/8 threads.

Does the feeder include a pump?

No, the feeder meters lubricant but does not include a pump. The pump supplies the lubricant to the feeder.

Can it run oil or grease?

The feeder runs oil or grease. Confirm the lubricant type before ordering.

How is a stall detected?

A stall is detected by cycle monitoring or a cycle indicator. Confirm the monitoring option you need.

Who builds these feeder components, 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 point count and section mix.