Corrosion has long been natures most destructive element, but with HMS flange insulation products this costly profit robbing item can all but be eliminated. HMS engineered insulation products, of consistent high quality, can be used to control and confine electrolytic corrosion in almost every piping system.

HMS insulation products are manufactured from materials with superior high dielectric strength, low water absorption and chemical stability to maintain the high quality required in refinery and chemical plant applications. Hydrocarbon exposure, weathering and salt water are no problem for HMS insulating materials.

HMS quality assurance and high production rate allow our customers to economically protect and lengthen the service life of equipment with little or no down time due to electrolysis.

HMS manufactures a full line of standard flange insulation sets including Type F (Ring) gaskets, Type E (Full Face) gaskets and Type D (API Ring Joint) gaskets.

HMS Type F and E gaskets are manufactured from 1/8" thick fabric based phenolic (Nema Grade CE) sheet with either no coating (plain faced) or a Nitrile rubber coating on both faces.

Compressed Non-Asbestos sheet with superior electrical insulation qualities are available on request.

It is recommended that a 1/16" thick service gasket be used on each side of the plain faced phenolic gasket to obtain an effective seal.

Either polyethylene or phenolic sleeves are available with these insulating sets. Polyethylene sleeves are standard and will be furnished unless otherwise specified. Teflon gaskets or envelopes are manufactured by HMS to the same exacting high standards and are available for high temperature or chemical corrosion damage prevention.