Spiral wound gaskets have the ability to recover under the action of fluctuating loads caused by process fluid pressure and temperature changes, flange face temperature variations, flange rotation, bolt stress relaxation, and creep. The gasket sealing element consists of a pre-formed metallic winding strip with layers of a softer, more compressible sealing material which, during compression, is densified and flows to fill imperfections in the flange surfaces. The metal strip holds the filler, giving the gasket mechanical resistance and resilience. The dimensional requirements of spiral wound gaskets are provided in ASME B16.20. These gaskets are widely used in piping and pressure vessel flange connections, in medium to high pressure and temperature duties.

TYPES OF SPIRAL WOUND GASKETS

Type R have wide range of materials for filler and metallic strip. They are standalone sealing element where the ID is reinforced with several layers of metal winding, filler material is the introduced to offer greater sealing ability. Widely used in tongue to groove, male to female and flat face to recess in vessels, valves and pumps.

Type CR have a solid metal outer ring used as a centring device and compression stop. They are mainly used on raised face and flat face flanges.

The centring ring is designed to guide the gasket on a bolted flange and provide radial strength.
Type RIR are same as type R except that solid inner ring is used to prevent over compression. They have high pressure and high temperature capability and used in male to female flanges in vessels, valves and pumps. The design is also helpful in turbulent applications.

Type CRIR have solid metal inner and outer rings and are best suited for high pressure and high temperature applications. These gaskets prevents turbulence and erosion damage to flanges and prevent damage to the gasket bore and inner windings. The inner ring act as a heat shield and corrosion barrier and eliminate the inward buckling of the sealing element.

Ring Joint Gaskets are precision-machined metallic sealing rings with dimensions in accordance with ASTM B16.20, API 6A, and ASME B16.5/16.20.

Ring Joint Gaskets are suitable for high-temperature and high-pressure applications. They are available in several common profiles to suit a variety of industry-standard flanges.

TYPES OF RTJ GASKETS:

Type R Series: R series ring type joint gaskets are available in oval and octagonal shapes. Both types are interchangeable on modern octagonal type grooved flanges. R series gaskets are available up to 5,000 psi.

Type RX Series: RX series ring type joint gaskets are interchangeable with R series in situations that have high pressure with more intense vibrations.

Type BX Series: BX Series ring type joint gaskets are pressure gaskets manufactured and designed for use up to 20,000 psi.

Double Jacketed Gasket Available Materials for Outer Shell: Stainless Steel 304, 316L, 321, 347, 410, Inconel, duplex, Soft Iron, Carbon Steel, PTFE, 4-6 Chrome 1/2 Mo 

Filler Material: Nickel, Aluminium, Brass, Copper, Ceramic, Expanded Graphite, Non-Asbestos 

Double Jacketed gaskets consist of a metallic outer shell with either a metallic compressed filler or a non-metallic compressed filler material. The filler material gives the gasket resilience, while the metal shell jacket protects the filler and resists pressure, temperature, and corrosion. These gaskets are suitable for use in Boilers, Heat Exchangers, Apparatus Construction, Pumps, and valves, narrow surface sealing, and applications where high-temperature gas is the fluid. These gaskets increase the stability of the joint and reduce its strength and offer high chemical resistance at a wide range of fluids.

Features:

• Available in diameters over 60”
• Can be used for temperatures above 1000F
• Different construction types offered to maximize resiliency
• Standard thickness and pass bar designs are available
• Flexible design allows for pass partitions in heat exchangers
• Relatively quick turnaround even for the most customized gaskets

Other Types of available Jacketed gaskets:

Single Jacketed Gaskets: The filler material is enclosed in a metal jacket, which covers the inside and outside diameter of the gasket.

French-Type Jacketed Gaskets: The filler material is enclosed in a metal jacket, which covers the diameter of the gasket and completely covers the sealing faces on both sides.

Solid Corrugated Metal Gaskets: This is comprised solely of metal and does not contain any non-metallic fillers in its construction

Typical applications
> Heat exchangers
> Gas mains
> Boiler and fues
> Pumps.
> Valve bonnets

Available Materials Gasket:

Nitrile-Face, G3, G7, G10, Phenolic, Teflon, Neoprene, Durlon

Sleeve: Phenoloc, Mylar, Polyethylene, Minlon, Nomex

Washer: G3, G7, G10 Steel, Phenoloc

Insulation kit gaskets are manufactured from materials with high compressive strength and stability, which helps prevent stray currents that cause corrosion. These gaskets are made from materials with high dielectric strength, low water absorption, and chemical stability.

Insulation kits are used to seal pipelines and guarantee the safe flow of fluids through pipeline systems. They offer a quicker and cheaper alternative to isolation joints and require little maintenance. The kits are manufactured in accordance with ANSI B16.5 specifications for sizes up to 24”.
Types Of Insulation Kit Gaskets:
Type E Gasket – These gaskets are full-faced and extend to the outside diameter of the flange. They have holes that automatically center them during installation and offer good protection against foreign objects shorting out the flange.

Type F Gasket – These gaskets are raised-faced and extend to the inside diameter of the bolt circle. As they sit just inside the bolt circle, they will automatically center themselves during installation.

Type D Gasket – These gaskets are designed to fit the ring groove of an RTJ flange.

Sleeves: The length of the sleeve must take into account the thickness of the gasket and must not be too short or too long. If it is too short, it fails to protect the bolts, and if it's too long, it could cause problems or break during tension. Sleeves are the best solution for reliability, resistance to aging, and insulating capacity.

Washers: The insulating washers are used to electrically isolate the bolts from other metal parts of the system. The insulating washer material should have a higher resistance to compression, which has an important impact on the performance of the insulating kit.

• Nitrile bound non-asbestos material with good torque retention and excellent creep resistance.
• These gaskets provides good resistance to oil, solvents and many other media and have good anti-stick properties.
• Typical Tensile strength is above 1500 PSI

TEMPERATURE LIMIT
Maximum – 7500F
Continuous Maximum – 4600F PRESSURE LIMIT
Maximum – 1595 PSI
Continuous Maximum – 725 PSI

• Modified PTFE is a plastic with the lowest coefficient of friction and can resist very high temperatures of up to 260°C. It is the ideal sealant for even less flat flanges. Different materials are combined with PTFE powder, which serves as a filler and improves the quality of the gasket. For example: a silica filling, barium sulphate, or a full PTFE core with a soft microcell of expanded PTFE.
• Modified PTFE gaskets are resistant to almost any chemical and able to withstand strong acids and alkalis. As a result, these gaskets are put to highly versatile use in the (Petro-)chemical industry, the food industry, the pharmaceutical industry, and drinking water installations.

Prime Features:

Easy to use and replace Wide service scope, it can replace any asbestos gasket, seal-armoured gasket, metallic gaskets, etc. Diverse applications in pipelines, enamelled products, glass, rubber products, plastic, non-rusting graphite lining tower, heat exchangers Great interchangeability Easy to store and purchase

Specification:

Pressure: 19.6 MPa Temperature: -286°C to 320°C

• Tanged graphite gaskets range of graphite sheet sealing materials is manufactured from highly pure exfoliated graphite flake, with/without a reinforcing metallic core. The standard product offers graphite with a carbon content of 98%, while for nuclear purposes, it's 99.85%.
• These gaskets are used in demanding industries such as petrochemical/refining industries due to the absence of any rubber or polymeric binders, making their stress retention levels high. This, in turn, ensures that the gasket stress applied upon assembly is retained during service.
• Various reinforce used are SS 304, SS316, SS321, SS341 and etc.

Prime Features
> Exceptional resistance to blow-out and crushing.
> Tough and versatile composite for high pressures.
> Strong composite construction with or without eyelets.

Specifications
> Density: 1.0g/cm3
> Compressibility (ASTM F36A): 15~35%
> Recovery (ASTM F36A): >/= 20%
> Pressure: 200bar
> Temperature: -240°C~+550°C
> PH: 0~14
Typical Applications
ASME B 16.21, DIN2690, And according to your requirements

• Pure graphite gaskets are widely used in all industrial sectors. They are found wherever enormously high temperatures can be found or substances that are distinguished by special aggressiveness. Pure graphite gaskets are thus especially deployed in the manufacture of pumps and/or exhaust systems.
• The mutability of these gaskets particularly makes them attractive for many areas. Pure graphite gaskets can, for example, be supplemented with stainless steel flaps or be impregnated with PTFE or copper to achieve better results and optimal application, including in drinking water installations.
• This includes the use of graphite foil, which makes it possible not to sacrifice the sealing quality even in the case of temperatures that exceed 450 °C.

EPDM gaskets are made of a black plate finish sheet with superior resistance to weathering, ozone, and UV exposure. EPDM gaskets provide excellent chemical resistance* and good electrical properties. They also resist animal and vegetable oils, steam, water, and oxygenated solvents. This material meets ASTM D-2000-2BA specifications.

We cut gaskets from EPDM sheet gasket material to produce EPDM gaskets. Gaskets are cut from 1, 2, 3, 4, 5, 6, 8, 10 mm using EPDM material. Please note that EPDM rubber gaskets are not oil-resistant.

• EPDM gaskets are available in Raised Face and Full-Face specifications and can be manufactured as per customer requirements
• Operating Temperature Range: -200°C to -1000°C

Neoprene: A neoprene gasket is a type of gasket made from neoprene rubber, a synthetic rubber material known for its durability and resistance to oil, chemicals, and weathering. Neoprene gaskets are commonly used in a variety of industrial applications, including automotive, marine, and aerospace industries, as well as in plumbing and HVAC systems.

Neoprene gaskets typically have a working temperature range of -40°C to 121°C (-40°F to 250°F). However, this can vary based on the specific grade of neoprene rubber used in the gasket's construction and the environmental conditions it will be exposed to. Some grades of neoprene rubber can withstand temperatures up to 260°C (500°F), while others may have a lower temperature tolerance.

A Wire Reinforced Neoprene Gasket is made from graphite as a homogeneous material, reinforced by a metal mesh, foil, or tanged metal.

Material: A wire reinforced graphite neoprene gasket is typically made from a graphite sheet with a neoprene rubber binder and a metallic or non-metallic insert for reinforcement.

Thickness: The thickness of a wire reinforced graphite neoprene gasket can range from 1/32" to 1/4" or more, depending on the application and the required compressibility of the gasket.

Temperature range: A wire reinforced graphite neoprene gasket can typically withstand temperatures ranging from -40°C to 200°C (-40°F to 392°F), depending on the specific grade of neoprene rubber used in the gasket's construction.

Pressure rating: The pressure rating of a wire reinforced graphite neoprene gasket can vary depending on the specific application and the thickness of the gasket. They can typically withstand pressures ranging from 150 to 1500 PSI.

Chemical resistance: Wire reinforced graphite neoprene gaskets are highly resistant to a wide range of chemicals, making them suitable for use in corrosive environments.

Reinforcing insert: The metallic or non-metallic insert used in a wire reinforced graphite neoprene gasket can be made from a variety of materials, including stainless steel, carbon steel, or fiberglass.

Customization: Wire reinforced graphite neoprene gaskets can be custom-designed to fit a wide range of shapes and sizes, making them a versatile option for many different applications.