Use connectors where ignitable gas and dust may be present, such as in refineries and silos. They are CSA certified for Class I, Division 2, Groups A, B, C, and D; and Class II, Division 2, Groups F and G. All have a chamber that withstands the pressure of an internal ignition—isolating it from spreading to the surrounding environment. They're rated IP66 and IP67 for protection from washdowns and temporary submersion.

Finger drawplates (sold separately) create a grip around plugs and sockets or receptacles, making it easier to pull them together tightly when mating.

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When used together, connectors maintain a watertight and corrosion-resistant NEMA 4X connection. All meet UL 1686 and are fully interchangeable with other UL 1686 configured and listed devices.

3W4P (three wire four pole) connectors have a ground pin that is included in the number of poles. They are marked 3W4P.

Receptacles include a mounting box with a conduit entry hub.

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These fittings are also known as hydraulic grease fittings.

Zinc-plated steel fittings have mild corrosion resistance. 303 stainless steel fittings are more corrosion resistant than brass fittings and have good chemical resistance. 400 nickel fittings are the most corrosion resistant and can be used in caustic environments, such as those involving salt water, sulfuric acid, and alkalies.

Fittings with a check valve prevent grease from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants.

PTF and NPTF (Dryseal) threads are compatible with NPT threads.

For technical drawings and 3-D models, click on a part number.