"Boss" Ground Joints "EZ-Boss" Ground Joints

STEM	WING NUT	SPUD	MALE STEM
		Female Spud          Male Spud      Double Spud

GROUND JOINT Positive Metal-to-Polymer Seal

WASHER TYPE

The leakproof seal in the "Boss" Coupling is affected in the Ground Joint Style by a soft-to-hard-polymer connection when the rounded head of the stem is in firm contact with the beveled polymer insert in the Spud.  Job down time to replace lost or deteriorated washers is eliminated and the sealing efficiency is not affected by dirt, grime or by normal wear through repeated use.

In the washer type coupling, the seal is made by a Klinger nylon, Nitrile bonded, Kevlar reinforced washer between wide flat surfaces on the Stem and Spud.  A tight connection is made, without turning the hose by rotating the Wing Nut and hammering it tight.  The washer type is the original "Boss" coupling, superseded by the "GJ-Boss" coupling, providing a Ground Joint Seal in place of a washer type seal.

The Spud part of the coupling serves as one half of the connection and is usually fixed permanently to the equipment.  The Stem and Nut attached (clamped) to the steam hose is the other half.  The two halves are connected or disconnected by rotating the Wing Nut on the Spud, to achieve a mechanical as well as a pressure seal.

SERVICES:
All-Purpose Hose Couplings, universally recommended for steam hose connections.  They are also widely used with equal efficiency for high or low pressure Air, Water, Liquid Petroleum Gas, Fluid Petroleum Products, Chemicals, Potable Fluids and almost any other type of fluid or gas.  They can be applied to all types of rubber, synthetic, plastic, metallic (with special stems) or semi-metallic hose.  Consult Factory for specific media capabilities.

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