With over 90 years experience, Henning Gasket & Seals knows what it takes to provide high-quality, outstanding customer service. We distribute standard spiral wound gaskets from name brands such as Garlock® and Flexitallic®. With our large inventory of material and competitive pricing, we have one of the highest customer ratings in the country.
No matter how big or small the job, we will treat you and your business with the respect you deserve. We have a high customer retention rate and we guarantee everything we manufacture and distribute. We know that you will be 100% satisfied with our product and we stand by our commitment to provide you with friendly and knowledgeable customer service.
Spiral Wound Gaskets are one of the best all-around seals, offering a low-cost solution that combines fire resistance and the ability to handle temperature and pressure fluctuations. Multiple wraps of metal and filler in the spiral create barriers that reduce the possibility of leaks. Widely used throughout refineries and chemical processing plants, spiral wound gaskets are also effective for power generation, aerospace, and a variety of valve and specialty applications.
Garlock® FLEXSEAL Spiral Wound Gaskets seals pressures to 3000 psi and is suited to temperatures from cryogenic to 2000°F. Three styles are available:
Style RW: Utilizes a centering ring that accurately locates the gasket on the flange face, provides additional radial strength, and acts as a compression limiter. A general purpose gasket suitable for use with flat and raised face flanges up to and including Class 2500.
Style RWI: Fitted with an inner ring providing additional protection and helps prevent over compression of the winding. Recommended for higher pressure applications, for use with PTFE fillers, and when delineated by ASME B16.20.
Style SW: Spiral winding only. The inner and outer diameters are reinforced with several plies of metal without filler to give greater stability and prevent buckling. It is suitable for tongue and groove, male-female, or groove-to-flat face flanges. This style spiral wound gasket is also available with inner rings.
Flexitallic® Spiral Wound Gaskets are available with standard fillers of ceramic, flexible graphite, PTFE, or mica graphite. Additionally, Flexitallic has a proprietary. high temperature sealing material - Thermiculite® that ensures against thermal oxidation at temperatures in excess of +1800°F.
Style CG: Utilizes an external ring which accurately centers gasket on flange face, provides additional radial strength to prevent gasket blow-out and acts as a compression stop. A general purpose gasket suitable for use with flat face and raised face flanges up to and inclusive of class 2500.
Style CGI: Fitted with an internal ring which gives an additional compression limiting stop and provides heat and corrosion barrier protecting gasket windings and preventing flange erosion.
Style R: Inner and outer diameters are reinforced with several plies of metal without filler to give greater stability and better compression and sealing characteristics. Suitable for tongue and groove or male and female or grooved to flat face flange assemblies.
Style RIR: Solid inner metal ring acts as a compression stop and fills the annular space between flange bore and the inside diameter of the gasket. Designed to prevent accumulation of solids, reduce turbulent flow of process fluids and minimize erosion at flange faces. Suitable for male and female pipe flanges.
A spiral gasket can be made to almost any dimensions required, and with combinations of different fillers. To accomodate different chemical compatibility and temperature requirements, a selection from filler materials include ceramic (-350°F to 2000°F), flexible graphite (-350°F to 850°F), PTFE (-400°F to 500°F), mica graphite (-350°F to 600°F).
Recently, a new woven & compressed graphite foil gasket sheet material has come to market using a patented graphite foil technology. Metallic spring strands are woven across one another to actuate the gasket through each thermal cycle continually adjusting to the expansion and contraction that leaves other compressed gasketing lifeless. Some have found this new gasket sheet replaces spiral wound gaskets, removing the spiral leak path and by eliminating the need for a compression ring (to prevent crushing).
Our customer service department is able to assist in making the correct spiral wound gasket selection for your application. Contact us today for fast, free quotes.