Our plastic Ultem tube plugs are made with Ultem nut and bolt assembly. Ultem is a fiberglass reinforced resin. We manufacture the collar and washers are made from a non-water soluble hard plastic called Hytrel™ and the silicone parts are of a vulcanized silicone rubber.

There are no metal parts to this tube plug, eliminating the concern of any galvanic action inside the tubes which can lead to pitting and premature deterioration of the tubes.

These plugs are offered in either a double size (two silicone parts) or a single size (one silicone part). The single plugs are recommended for lower pressures and the doubles are for pressures between 60 psi and 150 psi.

Please refer to the questions and answers section for more information.