A solid metal gasket that is softer than the mating flange material that is virtually ‘crushed’ into the flange face, creating a seal by filling imperfections and leak paths with gasket material. Under high sealing stress the gasket deforms but not the flange. They are used predominantly in the petrochemical industry (offshore oil platforms, refineries) due to the high service pressures required in their processes. Ring joint gaskets are machined to exact specifications and tight tolerances and come in a number of styles.
Oval type ring joint gaskets
Octagonal type ring joint gaskets
Plain type gaskets
Lens type ring gaskets
RX style ring joint gaskets
BX style ring joint gaskets
Wedge-shape type ring joint gaskets
Delta type ring joint gaskets
Soft iron, low carbon steel, 5Cr1/2Mo
304, 306, 347, 410 stainless steel
copper, aluminum, lead
Size: 1/2"~36"(DN15~DN900)
Pressure: PN2.5~PN160, Class150~Class2500
EN 1092-1, EN 1092-2, EN 1092-3, EN 1092-4
ASME B16.1, ASME B16.5, ASME B16.24, ASME B16.47A, ASME B16.47B
MSS SP-51
Spiral wound gaskets made by alternating a formed metal strip and a soft filler material to which form a gasket that produces a very effective seal when compressed between two flanges. The V-shaped windings of the metal strip acts as a spring, giving the gaskets greater resiliency under varying conditions.
The metal strip and filler materials of spiral wound gaskets can be changed, accommodating for different chemical compatibility requirements and fire safety is assured with selecting flexible graphite as the filler material.
Spiral wound gaskets may include a centering ring, an inner ring, or both. Spiral wound gaskets' outer centering ring ensures the gasket is centered within the flange and acts as a compression limiter. Spiral wound gasket inner rings provide additional radial strength, also reducing flange erosion while protecting the sealing element. The strength and resiliency of spiral wound gaskets make them the ideal choice in a variety of conditions and applications, and are used widely throughout refineries and chemical processing plants, also being very effective for power generation, pulp and paper, aerospace, and a variety of valve and specialty applications.
Spiral wound gaskets are manufactured to a number of specifications most notably being ASME B16.20 or EN 1514-2. Manufacture in accordance with the guidelines set forth in the ASME B16.20 or EN 1514-2 specifications plus many others to meet industry demands.
Basic type spiral wound gaskets
With inner ring type spiral wound gaskets
With outer ring type spiral wound gaskets
With inner ring & outer ring type spiral wound gaskets
Inner ring & outer ring
ASTM TP304, TP304L, TP316, TP316L, TP321
EN 1.4301, 1.4307, 1.4401, 1.4404, 1.4462
Carbon steel
INCOLOY® 800, INCOLOY® 825, INCOLOY® 600, INCOLOY® 625, INCOLOY® X750
MONEL® 400, Nickel 200, titanium
Sealing element
Flexible graphite, expanded graphite, PTFE, asbestos, non-asbestos, mica, ceramic fiber
Size: 3/8"~60"(DN10~DN1000)
Thickness: 2.5~7.5mm
Pressure: PN2.5~PN160, Class150~Class2500
EN 1092-1, EN 1092-2, EN 1092-3, EN 1092-4
ASME B16.1, ASME B16.5, ASME B16.24, ASME B16.47A, ASME B16.47B
MSS SP-51
It is made from Asbestos millboard, Expanded Graphite Ceramic, PTFE, etc. Filler, covered with thin metal jacket, such as stainless steel, carbon steel, copper, etc. Proper medium, pressure and temperature are decided by different materials we use. The highest temperature is 1300°C and the highest pressure is up to 100Mpa.
Single-Jacked gaskets
Wholly-Jacketed gaskets
Corded-Jacketed gaskets
Double-Jacketed gaskets
Jackets
ASTM TP304, TP304L, TP316, TP316L, TP321
EN 1.4301, 1.4307, 1.4401, 1.4404, 1.4462
Carbon steel, copper
Fillers
Soft asbestos millboard, ceramic fiber, PTFE, flexible graphite, non-asbestos
Size: 3/8"~60"(DN10~DN1000)
Pressure: PN2.5~PN160, Class150~Class2500
EN 1092-1, EN 1092-2, EN 1092-3, EN 1092-4
ASME B16.1, ASME B16.5, ASME B16.24, ASME B16.47A, ASME B16.47B
MSS SP-51
Ret ring with concentric serrations made of various types of metal. Used when bolting force is not sufficient to seal a flat gasket, because it contacts flange face only at serration peaks. Commonly used on valves and flanges attached to equipment. 3 types of cross section as per right table are available.
Basic type serrated metal gaskets
With outer ring type serrated metal gaskets
With outer ring and inner ring type serrated metal gaskets
Metals
ASTM TP304, TP304L, TP316, TP316L, TP321
EN 1.4301, 1.4307, 1.4401, 1.4404, 1.4462
Carbon steel
Sealing faces
Expanded graphite, PTFE
Size: 3/8"~60"(DN10~DN1000)
Pressure: PN2.5~PN160, Class150~Class2500
EN 1092-1, EN 1092-2, EN 1092-3, EN 1092-4
ASME B16.1, ASME B16.5, ASME B16.24, ASME B16.47A, ASME B16.47B
MSS SP-51
Exchanger series gasket is designed and manufactured for multi-pass heat exchangers. Pass ribs are welded to inner hoop of gasket or inner ring. 2 type of pass rids are available. Tube type or Metal jacket type.
Exchanger series gaskets are available for asbestos, non-asbestos, PTFE, graphite. For tongue and groove flange, stainless steel rod (SUS304, 316 3.2mm) fixed in circumferential groove of the inner hoop is also available on request.
Basic type heat exchanger gaskets
Basic with rod attached heat exchanger gaskets
Inner ring attached heat exchanger gaskets
Outer ring attached heat exchanger gaskets
Inner & outer ring attached heat exchanger gaskets
Hoops
ASTM TP304, TP304L, TP316, TP316L
EN 1.4301, 1.4307, 1.4401, 1.4404
Indicates fillers
Flexible graphite, expanded graphite, PTFE, asbestos, non-asbestos
EN 1092-1, EN 1092-2, EN 1092-3, EN 1092-4
ASME B16.1, ASME B16.5, ASME B16.24, ASME B16.47A, ASME B16.47B
MSS SP-51
PTFE is a fluoropolymer with exceptional chemical resistance and is the most widely used plastic in the sealing industry. The only known chemical products to attack PTFE are liquid alkaline metals and free fluorine. It has a fairly good temperature range to plus 260 °C, excellent electrical insulation properties, anti stick, impact resistance and low coefficient of friction.
Excellent corrosion resistance
Ideal choice for replacing asbestos material
Widely used in most applications
PTFE, expanded PTFE, modified PTFE
Size: 1/2"~96"(DN15~DN4000)
Thickness: 1.0~6.0mm
Pressure: PN2.5~PN63, Class75~Class900
EN 1092-1, EN 1092-2, EN 1092-3, EN 1092-4
ASME B16.1, ASME B16.5, ASME B16.24, ASME B16.47A, ASME B16.47B
MSS SP-51
Graphite's outstanding thermal stability, excellent compressibility and a superior chemical resistance makes it one of the best gasket materials in the sealing industry today. Due to graphite sheet being a lot more fragile than other gasket materials they must be handled and installed with care.
Graphite gaskets are cut from pure graphite sheet or graphite sheet with metal reinforcement, features excellent corrosion-resistance, high-and-low temperature resistance, good compression resilient and high intensity it can be used as sealing elements of pipe, valve, pump, pressure vessel, heat exchanger and condenser, etc. Other complex gaskets such as water gauge gasket and flange gasket with bolt holes are available.
Resistant to most medium
Environmentally compatible
Asbestos free & No health hazard
Easy to cut & bunch
Excellent chemical and temperature resistance
Graphites, reinforced graphites
Reinforcement materials: 304, 316, pure nickel
Size: 1/2"~96"(DN15~DN4000)
Thickness: 0.1~4.5mm
Pressure: PN2.5~PN63, Class75~Class900
EN 1092-1, EN 1092-2, EN 1092-3, EN 1092-4
ASME B16.1, ASME B16.5, ASME B16.24, ASME B16.47A, ASME B16.47B
MSS SP-51
Mainly the gaskets is made of NBR, polyacrylate rubber, silicon rubber, EPDM rubber, CR, NR or CPE through formulation-optimizing, mixing, sheeting, forming, and vulcanizing.
Supply range: Various "O" rings oil seals frame structure oil seals and shaped pieces.
It is applicable for dynamic and static sealing under temperature up to 250°C.
NBR, polyacrylate rubbers, silicon rubbers, EPDM rubbers, CR, NR or CPE
Size: 1/2"~96"(DN15~DN4000)
Thickness: 1.0~6.0mm
Pressure: PN2.5~PN63, Class75~Class900
EN 1092-1, EN 1092-2, EN 1092-3, EN 1092-4
ASME B16.1, ASME B16.5, ASME B16.24, ASME B16.47A, ASME B16.47B
MSS SP-51