The specially designed valve incorporated in the gland allows air to enter the drum when the pump is operating, then automatically closes on the completion of pumping, thereby eliminating fumes or odors from leaving the drum and polluting the atmosphere/workspace.
The Glands are available in stainless steel, polypropylene and brass.
The lower part of the Gland is interchangeable, this allows the Gland in Polypropylene to be used for both standard and buttress threaded drums. Specify required thread when ordering. Glands are available in sizes to fit both Sealless and Mechanical Seal Tubesets.