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Properties and application
Heat Exchanger Gasket is a term that has been given to gasket used in heat exchangers. The structure of the gasket or its type vary according to operating conditions of the exchangers. The DONIT TESNIT® heat exchanger gaskets come in a broad spectre of types including single or double jacketed, corrugated, plain metal, soft and many other. A large selection of different materials allows heat exchangers to operate at temperatures beyond the capabilities of most soft gasket materials.
Advantages
Available in a wide range of materials, since they are all custom made. There are few limitations regarding size and shape.
Metal jacketed heat exchangers - The metal jacket provides mechanic strength to contain the filler and improves chemical resistance.
Unique construction provides stability and ensures trouble-free handling and installation.
Shape and construction
These gaskets are used in shell and tube type heat exchangers. They can be manufactured in very different sizes, shapes, with or without bars. The primary seal is at the inner diameter of the gasket, the external gasket diameter acts as a secondary seal. The bars seal between the heat exchangers passages.
The DONIT TESNIT® heat exchanger gaskets are produced in several types to meet the most demanding applications. Gaskets for heat exchangers can be manufactured in metal or alloy with a thickness of 0.4 mm featuring a soft core inside a metallic jacket.
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The sealing insert is made of corrugated stainless steel, soft gasketing material or rubber. This insert is coated with PTFE and open on one side, usually on the outside. Thanks to the high chemical stability, good mechanical properties and permanent resistance in the atmosphere (humidity, gases, temperature changes) they are suitable for all types of gaskets and different media, mostly for aggressive chemicals.
Advantages
Thanks to the high stability of C-F bond virgin PTFE, which is used for the envelope, exhibits extraordinary chemical resistance. Combinations of two or more insert materials allow a large number of different applications.
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Compression profile that seals the joints against wetness and dirt through its pre-tension. V-shaped incision on the surface dictates clearly the folding direction, which creates a clean, harmonic impression over the entire length.
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Joint strip
Joint strip is used in expansion joints in accordance
with the materials description in Swedish building
regulations Hus AMA 72. It is also used to provide
wind-proofing and a vapour barrier.
• EPDM cellular rubber with its established benefits,
i.e. ease of use, resistance to ageing, sealing
ability, etc.
• Does not produce toxic fumes in the event of fire.
• Hollow, soft and elastic – accommodates
movements in joint.
• Made from black EPDM cellular rubber.
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KLINGERsoft-chem
The best choice for economical plant-wide use on services to 260°C and pressures to 200 bar.
KLINGERsoft-chem is an expanded PTFE material that has brought non-asbestos gasketing technology to a new level of performance.
Excellent corrision resistance together with superior creep resistance and sealability create a high-grade gasket material for a wide application field in your plant. Many of your demands in gasketing can be fulfilled in an economical and safe way by KLINGERsoft-chem
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KLINGER Quantum
A new era in gasket technology
Material:
KLINGER Quantum is the first fibre-reinforced gasket material in the world that is exclusively HNBR-bound. KLINGER Quantum offers a formerly unknown level of flexibility at high continuous temperatures, with a simultaneously improved chemical resistance and border range of applications that all known fibre-reinforced gasket materials.
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Sole distributer of the more famous brands - KLINGER, KEMPCHEN, AMORIM - the Group Eynard Robin conceives and also manufactures many references of joints of supports in order to cover all the applications and to adapt to the most extreme operating conditions.
The Group Eynard Robin proposes a broad choice of solutions for the sealing of the supports:
- sheets: fibers elastomers (KLINGER signal-sil-ML1...), graphite (KLINGER MULTI-AS...), bases PTFE (KLINGER signal-chem 3210...), elastomers, lièges elastomers (AMORIM), mica and fibers high temperatures (KLINGER Milam PS...)
- metal and semi-metal joints: spiral KLINGER, striated KEMPCHEN, copper asbestos, annular, flat, crimped, GRAPHITOR, undulated, to weld KEMPCHEN, lenticular KEMPCHEN, deflectors, toric metal
- joints process: jacket, of piping universal GORE, ASAHI, PTFE armed, toric covered, joined CHEMRAZ GREENE TWEED, MSE SEAL GREENE TWEED...
- trimmings: ribbons out of PTFE, joints and ribbons GORE, ribbons Graphite...
- joints high temperatures: textile products, paperboard, paper, felt...
- various joints and accessories: O rings, sealing rings, joints elastomers with metal heart, joined boiler, kits insulating, guard of supports...
Many references profit from international certificates (conformity FDA, reference PMUC, approval BAM...) and can be used for the most demanding applications: food, petrochemistry, nuclear power...
All these products are available in standardized dimensions. The Group Eynard Robin also carries out on plan of the joints of supports all dimensions, all forms, all materials.
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KLINGERtop-chem-2000
Ultimate chemical resistance and mechanical durability combined in one material.
The PTFE-gasket, which does not flow: merely 1,6% thickness loss at a surface pressure of 50 MPa and a temperature of 200°C!
Basis
PTFE with a special chemical resistant pressure and temperature-stable filler.
KLINGERtop-chem-2003
Maximum chemical resistance and tightness even with low surface pressure.
This product is characterised by outstanding surface adaption with low surface pressures and extremely high tightness (German Clean Air Act). Ideal for use with low surface pressures and weak flanges.
Basis
The well-balanced properties of this material are the result of PTFE with a special chemical resistant filler and a special production process for sheet manufacture.
KLINGERtop-chem-2005
Good value introduction into the KLINGERtop-chem-class.
High resistance against strong acids and good properties at medium and low temperatures and surface pressure.
The cost-effective alternative to KLINGERtop-chem-2000, if requirements are a little lower.
Basis
Gasket sheet made of SiO2-filled PTFE - special production process.
KLINGERtop-chem-2006
Good value introduction into KLINGERtop-chem-class.
High resistance against strong alkaline solutions and good properties at medium and low temperatures and surface pressures.
The cost-effective alternative to KLINGERtop-chem-2000, if requirements are a little lower.
Basis
Gasket sheet made of filled PTFE - special production process.
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Sheet material and flat gaskets
We stock the exact material for the job, whether for coping with the most exacting thermal stress, difficult media or for high-pressure applications. We can supply gaskets at short notice thanks to our own punching shop.
Flat gaskets, pure graphite flexible
Flat gaskets, fiber compound
Spiral seals
Screw seals
Sealing tape
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From High performance aircraft engines to swimming pool lights, Seal Science has met the gasket requirements. Whether die-cut gaskets or molded gaskets, our organization has the capability to meet your related sealing requirements.
We furnish the most simple gaskets at a very competitive prices, or items that must survive in environmental extremes; whether for high temperature, low temperature, or chemical resistant applications. Gaskets that provide EMI Shielding, conductive sealing, or dissipative characteristics also fall in our area of expertise. The Gasket is thought of as a simple component, but it has its own unique technology. A technology that must be honored to achieve reliable long-lived sealing. Seal Science engineers have mastered this technology. We are anxious to help you with your gasket requirements.
- Pro E, Solidworks Design
- Mil Spec Gasket Materials
- Custom Rubber Compounding -all materials
- EMI,RFI,ESD materials
- Silicone - medical grades ,industrial and military
- Viton ,60,75 and 90 A
- Graphite
- High Temperature Materials
- Teflon for chemical resistance or temperature extremes
- Viton ,60,75 and 90 A
- EPDM rubber and sponge
- R134a sealing
- HNBR -automotive and tough applications
- Neoprene rubber and sponge
- Fabric inserted calendered rubber and silicone
- Diaphragms
- ANSI Flange Gaskets
- PSA Application
- MS 52000 Connector Gaskets
- Many other materials - call or Email !!
- High Speed Presses
- 72" width capability
- Fabrication Dept.
- Bonding,Splicing
- Lab Testing
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Adapted to all the requirements in static sealing, these sheets make it possible to produce joints cut out of all forms, of all dimensions according to the standards standardized or special according to the customers plans.
To cover a maximum of applications, the group designs and manufactures its products, and also distributes of exclusiveness marks KLINGER, KEMPCHEN, GORE and AMORIM:
- fibers elastomers KLINGER: excellent industrial sealing compatible in all the scopes of application.
- sheets containing graphite KLINGER and KEMPCHEN: for severe applications and high temperature.
- PTFE: exceptional chemical resistance in the majority of the fluids
- elastomers (EPDM, IIR, NBR, CR, NR...) : covering all the industrial applications
- lièges elastomers AMORIM: for applications under weak tightening (industry and manufacturers)
- bases mica and fibers high temperatures KLINGER: resistance to very high temperatures, gases hot and exhausts.
All the selected products are in conformity with the European directives on the environment and answer various approvals and certificates: food, gas, oxygen, safety fire...
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BLUE-GARD®
Gasketing material made from a unique blend of fibers, fillers, and a choice of several elastomeric binders. Excels in a wide range of industrial applications.
GRAPH-LOCK®
Pure exfoliated graphite material handles extreme temperatures, resists nearly all non-oxidizing chemicals, and offers excellent compressibility and low creep relaxation. Available in homogeneous material, or with metallic or non-metallic inserts.
GYLON®
Restructured PTFE gasketing with excellent chemical resistance. Significantly reduces creep relaxation problems typical of conventional PTFE.
Inorganic Fiber
Inorganic fiber gasketing with excellent thermal stability and torque retention for optimal sealability in temperatures up to 550°F (290°C) continuous.
LEAK-GARD™
Proprietary compound virtually eliminates oil and hydrocarbon leaks even under low bolt load, and avoids "weep-through" common to vegetable fiber gasketing. Recommended for lightweight gear box covers and fuel pumps, as well as standard ASME raised face flanges.
MULTI-SWELL™
Over 70% of gasket failures are due to lack of load. MULTI-SWELL™ Style 3760 Gaskets react with water or oil to create its own load. Problems with low load applications and leakage are a thing of the past.
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KLINGERcompri
Basis:
Gasket material made of expanded graphite with internal metal reinforcement made of tanged stainless steel of 0.10mm thickness or foil of 0.05 mm thickness
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sed primarily in high-temperature or cryogenic seals and gaskets, calendared mesh and mesh-core cable are designed to not just survive but flourish in operating environments where other materials, such as refractory rope or polymer substrates cannot. During the design phase, wire types chosen specifically for their resistance to certain destructive elements give calendared mesh and mesh core cable resistance to temperature extremes, corrosion and otherwise destructive elements. Additionally, because knitted wire mesh is essentially a complex spring, its compression characteristics and resiliency features give it an inherent resistance to mechanical wear.
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Intended for the industrial applications under strong constraints of pressure and temperature, the metal and semi-metal joints of high technology ensure safety and quality under extreme conditions of use.
The variety of joints KLINGER, KEMPCHEN and IMPERATOR Industries proposed by the Group Eynard Robin makes it possible to answer many applications:
- spiral joints: for needs requiring a security level and for sealing, resistance to strong pressures
- metal gaskets: for the installations high pressure and high temperature. Without coating, ideal sealing on vapor applications without thermal cycle
- copper asbestos joints EYRMET: for industries petrochemical, chemical, iron and steel, automobile...
- annular joints metal EYRING: excellent resistance to high temperatures and high pressures.
- crimped joints EYRCLIP: for uses at extreme temperatures with thermal shock: , joint cylinder head gasket of exhaust...
- joints Graphitor IMPERATOR: application on the valves and fittings, the supports of body of apparatus and, according to the models, in the nuclear and marine sectors
- corrugated joints EYRCOR: without coating, excellent shear strength for a screwed tightening. With coating, broad beach of use thanks to the flexibility of the metal heart
- also available: flat joints metal EYRMAT, welding seams KEMPCHEN, lenticular joints KEMPCHEN, deflecting joints profile T4 KEMPCHEN, O rings metal EYRTOR...
Several of these products are referred PMUC (Graphitor, Metagraph) for a nuclear application.
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KLINGERmetall
When mounting a KLINGERmetal gasket, the screw-force will deform the bead, so a high, specific line-load on the bead will be produced, even with low screw-force. The elastomer-coating will be pressed into the surface roughness of the sealing area: the wanted microsealing in the area of the surface roughness will be achieved.
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The technically optimal solution for difficult sealing problems with large-scale pipe forces and moments, high pressures, vacuum and/or high temperatures with the smallest leakage as well as radially different expansion.
Used as metal flat gasket, ring-joint gasket, lens gasket, double cone gasket, convex grooved gasket with covering layers of aluminum or silver, convex gasket and special profile gasket with or without galvanic coating or as membrane welding gasket and weld-ring gasket.
We offer a wide variety of suitable materials from our extensive stock of primary materials such as:
• Low-alloy and high-alloy ferritic and austenitic steels
• Non-ferrous metals and non-ferrous metal alloys based on nickel, copper, titanium, aluminum and silver.
All kempchen metal gaskets are characterized by their high operational safety and extremely low leakage rates.
This makes them highly suitable in terms of the German Hazardous Incident Ordinance and the Technical Regulation ‘TA-Luft’ (clean air act).
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Metallic Gaskets
Innovative metal gaskets designed to standard and customer configurations. Incorporating a wide range of quality materials to suit all process applications.
Flat Metal Rings
JDG
JPR
Kammprofile
Serrated solid metal core for rigidity coupled with a deformable sealing material for compressibility ensures tight, reliable sealing even under low bolt loads. Durable and tight in extreme temperature and pressure fluctuations.
Ring Joints
Spiral Wound Graphite
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Particularly adapted to the drug companies and agroalimentary (conformity FDA), the joints "jacket" PTFE are used for all the aggressive processes. They are composed of a heart which confers necessary mechanical qualities to them, and of an envelope PTFE which protects it from corrosion.
The Group Eynard Robin manufactures and distributes:
- the joints jacket PTFE EYRFLON: gone up on metal supports out of glass, graphite, plastic, or covered or vitrified steel (enamel)
- the joints jacket PTFE EYRTEX: especially developed for applications ATEX, they are equipped with a metal leg connected to the mass of the apparatus which avoids the risks of lighting and explosion. This system collects the static electricity generated by the circulation of the product and makes it possible to evacuate the electric potential with the support.
The Group Eynard Robin proposes a broad choice of dimensions, matters and profiles of heart and envelopes.
The joints jacket PTFE EYRFLON and EYRTEX can be used
- in standard and/or severe applications
- in corrosive ambient condition or ultra-aggressive
- on the vacuum
- at temperatures being able to reach until 220°C
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The kempchen range of plastic products at a glance: Specially manufactured PTFE-enveloped gaskets, piston rings, guide rings, guide belts, control floats, V-rings, solid O-rings, enveloped O-rings with Elastomer insert, balls as well as all structural elements.
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KLINGER Rubber-Metal-Gasket, Material NR
The Application of NR-vulcanisates is possible where natural media have to be sealed. Temperatures higher than 90 °C have to be avoided.
Media:
NR = Natural rubber (SMR)
KLINGER Rubber-Metal-Gasket, Material NBR-GW
The NBR type have good chemical resistance against aliphatic hydrocarbons. mineral oils and greases, diesel fuel and petrol.
Media:
NBR-GW
KLINGER Rubber-Metal-Gasket, Material EPDM-KTW
Additionally to the applications acc. to the chemical resistance, the EPDM type is well suitable for applications which require good ozone-, ageing- and weathering resistance.
Media:
EPDM-KTW
KLINGER Rubber-Metal-Gasket, Material CSM
The application of CSM-vulcanisates are in the chemical industry, dry-cleaning etc.
Media:
CSM
Hypalon (chlorosulfonated polyethylene)
KLINGER Rubber-Metal Gasket, Material FKM
As there is a good chemical resistance for acids and alkalines, the main application field is in the chemical production and users of chemicals.
Media:
FKM=Viton (Fluoro elastomere)
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Rubber products and trim
Normont supplies a full-line of rubber and trim products. From self-sealing weatherstips to aluminum and metal core Quickedge® protective trims to self-gripping rubber gaskets, Normont has a cutting-edge assortment of these products.
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The spiral joints are designed especially to withstand strong pressures and to ensure of important levels of sealing and safety. In order to limit crushing to tightening, they can integrate an interior metal ring for the safety of rolling up and an outside for safety and centering of the joint.
The Group Eynard Robin:
- of exclusiveness distributes spiral joints KLINGER: particularly adapted to seal strong pressures in liquid and gas
- manufactures spiral joints EYRFLEX: available in the dimensions standardized IN or ASME, or conceived on plan for the constructed boilers apparatuses or special supports
These products adapt to many operating conditions:
- various possible material combinations (stainless steels, Monel metal, Nickel, Inconel...)
- resistance to temperatures from -200 to +1000 °C
- use with pressures of vacuum up to 430 bar
- all dimensions up to 4 m in diameter and 2,5 to 6,4 mm thickness
They are approved safety fire (API 6FB).
The standard spiral joints claim more tightening than a cut out flexible joint and cannot thus be gone up on weak supports. On the other hand, for these weak supports, of spiral joints LD were developed.
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Cord Stock, Sheets & Slabs: Sheets and slabs of Parofluor™ and Parofluor™ ULTRA™ can be molded up to 0.275 inches thick and up to 12 inches square.
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For low to medium pressure and median temperatures up to 550°C/1022F RivaTherm-Super gaskets made of a graphite-metal sandwich material have proven themselves a hundred times over with almost all liquid or gaseous media. RivaTherm-Super is manufactured with smooth, spiked or expanded metal foil reinforcements. In addition to RivaTherm-Super the gaskets can also be made from other asbestos-free materials such as rubber, leather, cardboard, vulcanized fiber, felt, cork, cork-rubber combinations or fiber glass sheets, elastomer bound fiber sheets, impregnated fibrous plant matter, sponge and cellular rubber.
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Perfect resistance.
Orobica Plast-Gom is highly experienced in elastomer technology and specialized in the production of gaskets for plate heat exchangers. Its technical division works alongside customers and designs different types of gaskets to satisfy the market, based on a simple drawing or an existing sample. All the departments are equipped with technological machinery and highly qualified staff, who first make the moulds and then the gaskets, which are vulcanized by compression or injection technology. The company is capable of making gaskets of any material, shape or size and for any type of heat exchanger. The gaskets are mounted using glue or clips. Orobica Plast-Gom also collaborates with world-renowned research labs to improve existing mixtures as well as study and test new specific elastomers. This means that it can guarantee more efficient, durable and reliable gaskets even when used in heavy-duty industrial applications, therefore cutting maintenance time and running costs.
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Kempchen has been manufacturing products from elastomer materials in Oberhausen for many years. Today all technically relevant types of rubber are processed, namely in the form of: Sheeting, rolls, injection molded profiles, moldings, rubber-metal combinations, compensators for cooling water piping, compensators for flue gas desulphurization plants as well as coating compounds.
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Components for air compressors, refrigerator compressors, heat exchangers
Steel valve plates complete with their components
Valve bars and springs
Gaskets for air compressors, hermetic and semi-hermetic compressors, compressors for braking system
Gaskets for heat exchangers
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Flange gaskets
Thanks to our specific process-, product- and application knowledge, ERIKS is capable of offering solutions for every flanged connection. Because of the extensive range of products ERIKS holds in stock, our well-equipped production facilities and our local presence, our products can be delivered rapidly. The quality products from our reputable suppliers enable us to supply to every specification.
Metallic and semi-metallic gaskets
* spiral wound
* serrated
* ring type joints (RTJ)
* flat or profiled metal rings
* with metal reinforcement
* metal O- and C-rings
Gaskets cutting
* graphite
* fiber (including Aramide, glass)
* PTFE (pure, expanded and filled)
* elastomer (solid, closed cells, sponge)
Other gaskets
* insulation sets for flanges
* manhole gaskets
* (heat) insulation (cloth, sheet, cord and tape)
* expanded PTFE band
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