Connectors

An integral part of grease guns, grease gun connectors come in many variations, suitable for different applications. Cromwell stocks a wide range of grease gun hydraulic connectors with brands like Stephens and our own brand Kennedy, so you'll be sure to find the right grease gun connector you require.

What are grease gun connectors?

Essentially grease gun connectors, also know as grease gun couplers link the hose or extension to the grease fitting head. They allow the gun to then dispense the lubricant. They are integral to lubrication systems and come in a variety of types and sizes to accommodate the correct fitting to the lubrication system being used.

Why grease gun connectors?

Designed to direct the flow and control the dispensing of grease, grease connectors are a simple way of avoiding spillages or unwanted mess when handling grease.

When are grease gun connectors used?

Grease gun connectors are commonly used in any industry in which grease is often used and needs to be dispensed in a controlled manner. This includes the manufacturing, automotive, maintenance and engineering environments and industries.

How do grease gun connectors work?

Every type of grease gun connector has a female or SAE standard thread. This connects the hose or extension to the coupler and are a standard size compatible with all grease guns. The opposite end is fitted to the head of the grease nipple which holds the connector securely. The connector contains jaws typically three or four sealing the fitting and allowing grease to be pumped through from the grease gun.

Types of grease gun connector

There are various types of grease gun connector, below are the most common types available as well as their features and benefits.

• Hydraulic - These are the most common type of grease gun connector and usually come with a new grease gun as part of the package. They are cylindrical in shape and feature jaws to seal the grease fitting head.

• Standard button head - Standard button head couplers are compatible with standard button head grease fittings and feature steel or rubber inserts.

• Giant button head - These connectors are used to grease giant button head fittings and feature rubber or steel inserts.

• Metric button head - Designed to grease metric button head fittings, these connectors feature a smaller clearance than traditional couplers providing a tighter seal.

Considerations when choosing a grease gun connector

• The type of grease head fitting - Standard fittings will require a standard coupler, whereas button head fittings require a button head coupler.

• The size of the grease head fitting - Ensure that the sizing of the coupler is compatible with the sizing of the grease head fitting.

Grease connector jargon buster

We awant to make it easy for you to shop our range of grease connectors, so we've outlined some key terms that will help you make a confident purchasing decision when browsing our wide range of products.

What are SAE standards?

SAE stands for the Society of Automotive Engineers and is a professional association which aims to standardise measurments, components and standards in the automotive, aerospace and commercial vehicle industries.

FAQs

Why does my grease gun get stuck in the fitting?

This can be a problem caused by clogged zerk fittings inhibit the grease pass through causing a pressure build up. Unscrewing the hose is a way to relase the pressure and release the fitting. You can then clean out the zerk using a solvent.