Neoprene Faced Plain Phenolic Flange Insulation Gasket Kit have been used as standard ''flat'' isolating gaskets in the oil and gas industries for many years. Soft neoprene rubber sheets are factory applied to both sides of a laminated phenolic retainer providing
SS316 Core Flange Isolating Gasket kits is a high reliability gasket used for both isolating and general sealing purposes in Very Critical Services. The gasket has a proven track record of integrity in aggressive sealing situations. Flange Isolating Gasket for High Pressure is suitable in all services up to and including ANSI 2500# and API 10,000# classes. Flange Isolating Gasket for High Pressure is designed for service where the cost of gasket failure cannot be tolerated. Flange Isolating Gasket for High Pressure gasket consists of a PTFE (Teflon) spring-energized face seal, or an elastomeric o-ring, seated in an isolating laminate, which is permanently bonded to a high-strength stainless steel 316 metal gasket core.
Polyimide refers to a class of synthetic polymers. Adding polyimide produces a PTFE compound that is lower in friction than all of those previously described. It is non-abrasive, making it a good choice for applications involving softer mating surfaces like steel, aluminium, or other plastics. Polyimide filled PTFE therefore suits dry running and stop-start applications particularly well. However, polyimide is the priciest of the PTFE fillers.
FKM (Viton™) comes standard in a 75 +/-5 Durometer Shore A Hardness with a light cloth finish. FKM (Viton™) is rated for use in applications involving temperatures up to +450 F constant or +500 F intermittent. FKM (Viton™) also offers excellent chemical, gas & oil resistance which makes it a good choice for a variety of applications.
Fluorocarbon rubber has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. Low temperature resistance is normally not favorable and for static applications is limited to approximately –15°F (–26°C) although in certain situations it is suitable down to –40°F (–40°C)
Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250 F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit excellent tensile strength and abrasion resistance properties
Silicone rubber cord is an ideal sealing material due to its consistent compressibility across a broad range of temperatures (-40°C up to +200°C). Commonly used in precision sealing applications where exact size o-rings are unavailable, this material offers fantastic flexibility, excellent electrical insulation and can also be bonded through the use of specific adhesives (sold separately). Supplied in coils, cut lengths or as vulcanised o rings, silicone cord is available various diameters. As standard, we supply this cord in white, blue, translucent and red oxide, but other colours are available upon request. For hygiene critical applications, we also offer this product in blue, metal detectable grade.
Aramid Fiber Packing with PTFE impregnated is an interlace, square braid packing manufactured from Kevlar Aramid fibres impregnated with PTFE dispersion and specially treated with a silicon-based compound for quick and easy break-in. Aramid fiber offers a unique combination of extremely high tensile strength, lasting resilience, low thermal expansion, low coefficient of friction and wide chemical resistance.
Jacketed gaskets are normally supplied with a non-asbestos, high temperature filler. The standard filler is normally sufficient for applications up to 900°F (482°C). Other soft fillers are available for higher temperatures or special applications. Standard metals used to make jacketed gaskets, regardless of the type, are aluminum, copper, the various brasses, soft steel, nickel, Monel, Inconel, and stainless steel types 304, 316, 321, 347, 410. The choice of metal used for the jacketed part of gasket would depend upon the service conditions being encountered.
PTFE Bronze Filled is the most common metal filler and it is dark brown in color. Bronze filler has excellent wear, creep resistance, and higher thermal conductivity than glass fiber with PTFE. Adding bronze in percentages between 40 and 60% can increase wear. PTFE Bronze-filled has poor chemical resistance in the presence of acids and alkali. PTFE Bronze-Filled is machined and used in bearings at high speeds when shafts are not hardened. It is useful in applications with higher mechanical loads and higher speeds rubbing contact points where bronze-filled supplies the strength and conductivity to carry away excess and unwanted heat. Used in hydraulic systems, superb for linear bearing, slides, guide ways, bearing rings, piston rings and wear pads., etc