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Metal-O-rings and C-rings for extreme operating conditions
From ultrahigh vacuum up to 6800 bar (100000 psi) pressure and temperatures from -269°C cryogenic up to +980°C (-425°F up to 1800°F).
Resistant to chemicals to a large extent.
GFD metal O-rings have been developed as a secure sealing of gases and liquids. They even can be used in case of extreme conditions. These static and metallic sealing elements can be applied in ranges of ultrahigh vacuum and up to a pressure of 6800 bar. They are suitable in case of continous temperatures from 269 degrees centigrade below zero up to 980 degrees centigrade above zero and resistant to radioactive radiation, chlorides, corrosion and other aggressive influences. They neither age in use or during storage.
Advantages:
With conventional flanged joints many technical data, from which only very few are precisely available during the design state, have to be known for the calculation. Also the values for the rigidity of the flange, the screws etc. have to be available. The consequence are extensive calculations with imprecise or assumed values and the involved disadvantages. There is always a defined initial tension, no setting and smaller flange and screw dimensions with the GFD metal-O-rings or lip seals. The proof has not to be furnished with complicated and difficult calculations about unknown quantities but simply by adding the forces of pressure to the operating pressures.
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Layers of all metal gaskets are formed into four cross-sectional profiles (round, rectangular, round with tail and double round with tail) and into a range of sizes to suite a large number of applications. Available in seven wire types: monel, tinned copper clad steel, stainless steel, beryllium copper, tinned copper, aluminium.
All metal gaskets offer excellent EMI shielding performance, providing electrical continuity when compressed between two mating surfaces.
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These exceptionally versatile gaskets solve many flange sealing problems for industry. They have either a metal core with sealing materials on both flat surfaces, or a pliable core encased in a thin metallic casing.
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The DONIT TESNIT® grooved gasket is the preferred gasket when improved performance at low seating stresses is required. It features excellent anti-blowout properties linked with the reliability of a solid metal-to-metal seal combined with a soft sealing face to provide a tighter joint. Metal gaskets with grooved faces have proven to be very effective for sealing flange connections, and are particularly suitable for applications where high temperatures, pressures and fluctuating conditions are encountered. Non-metal cover layers ensure that flanges are not damaged, even at extreme loads, and provide excellent sealing properties when supported by the grooved metallic gasket. The DONIT TESNIT® grooved gasket is an ideal replacement for problem applications associated with jacketed gaskets, for heat exchangers, vessels and reactors and various flanged connections.
Advantages
* Capable of sealing pressures exceeding 250 bar.
* Capable of withstanding temperatures up to 700°C.
* Particularly effective in maintaining performance under condition of fluctuating temperatures and pressures.
* Solid construction provides stability even for large diameters and ensures trouble-free handling and installation.
* Gaskets can be fitted to existing assemblies without modification.
Shape and construction
The DONIT TESNIT® grooved gaskets are produced in several types to fit the most demanding applications.
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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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General Information
HTMS Metal- C-Ring seals are made from high temperature alloy strip. The strip is cut to the required length and tig welded. The C-shape is then formed in a tool or is roll formed for bigger sizes. HTMS Metal C Rings are a logical development over our popular Metal O Ring. Metal C Rings have a better spring back then same size Metal O Rings. The seating load or the required bolting force is lower than for similar sized Metal O Rings. HTMS Metal C Rings will compensate greater flange rotation and maintain positive sealing load, better than Metal O Rings.
For sealing thin gas or low viscosity fluids, HTMS recommend to soft plate the bare metal seal with such materials as silver, gold or tin. Also PTFE as a coating is available.
For extreme low leakage requirements at elevated temperatures HTMS also produces spring energized metal C Rings. This “CS” design is basically a metal C Ring with an inserted high tensile spring.
Metal C Ring availability
- From 6 mm to +3000 mm diameter
- Cross section from 0, 89 mm to 12, 7 mm
- In house plating, Silver, Gold, Tin and others
- Spring energized versions for extreme tightness
- Available in shaped forms
- For internal or external pressure
Metal C Rings capability
- Temperatures from cryogenic (- 270°C) up to high temperatures (+ 900°C)
- Ultra hard vacuum and pressures op to +300Mpa
- High pressure capability
- Lowest leak rate
- Radiation resistant
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General Information
HTMS Metal- O-Ring seals are made from high precision metal tube. Contrary to flat gaskets, HTMS Metal-O- Rings require extreme low bolting load. Because they feature a certain resiliency or spring back, HTMS Metal O Rings will compensate minor flange rotation and maintain positive sealing load to the sealing surface.
For sealing thin gas or low viscosity fluids, HTMS recommend to soft plate the bare metal seal with such materials as silver, gold or tin. Also PTFE as a coating is available.
HTMS Metal O Rings are made for internal or external pressure. For high pressure application HTMS advises vented or system pressure assisted Metal O Rings.
For extreme low leakage requirements at elevated temperatures HTMS also produces spring energized metal O Rings. This “OS” design is basically a metal O Ring with an inserted high tensile spring.
Metal O Ring availability
- From 6 mm to +3000 mm diameter
- Cross section from 0, 89 mm to 12, 7 mm
- In house plating, Silver, Gold, Tin and others
- Spring energized versions for extreme tightness
- Available in shaped forms
- For internal or external pressure
Metal O-Rings capability
- Temperatures from cryogenic (- 270°C) up to high temperatures (+ 900°C)
- Ultra hard vacuum and pressures op to +300Mpa
- Handles hydrogen gas up to non- Newtonian fluids
- Moderate pressure capability
- Lowest leak rate
- Radiation resistant
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The metallic ring joint gaskets are manufactured according to the API 6A and ASME B16.20 standards for application at elevated temperatures and pressures. The small sealing area with high contact pressure results in great reliability. The contact surfaces of the gaskets and flange should be carefully processed. Some types of ring-joints are pressure activated, that is, the greater the pressure the better the sealability.
Advantages
* The metal ring joint gaskets have been designed to withstand exceptionally high assembly loads over a small area, thus producing high seating stresses.
Shape and construction
The DONIT TESNIT® ring joint gaskets are produced in several shapes and sizes to meet the most demanding applications.
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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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Resilient Metal Seals
Metal-to-metal seals: the innovative route in static sealing
Process developments over the past thirty years, demanding ultra high vacuum, high temperatures and pressures, have driven the need for advanced technology seals. Michel Le François, Research and Development Manager of Sealing Technology business Garlock, explains how metal-to-metal gaskets have evolved to comply with the most demanding requirements.
HELICOFLEX
Metal C-Rings
Metal E-Rings
Metal O-Rings
OMICRON
ULTRAFLEX
ULTRASEAL
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Metal Seals/Resilient Metal Seals are designed for applications that require temperature and chemical resistance beyond that of even Parofluor Series elastomers. These seals are offered in many cross-sections, including "C," "U," "E," and "V," with spring-energized variations.
Parker S-Shape and Omega Metal Seals are high performance, resilient metal seals intended for separable joint type applications requiring
resistance to temperature and pressure extremes, resistance to corrosive fluids, zero leakage and exceptionally long life.
The Parker S-Shape Metal Seal features low seating load, high resilience. They are self energizing and pressure assisted. Parker S-Shape Metal Seals are reusable and require a very simple cavity design.
The high strength base metal "spring" is coated with a softer sealing material. When compressed between flat surfaces, the spring seal forces the soft coating material into the mating surface roughness, blocking all potential leak paths. Once initiated, the intimate contact is maintained by the seal's resilience, overcoming the effects of temperature, pressure, flange separation and reduction of bolt torque.
The Parker O-Seal Division also produces two additional types of resilient metal seals for use in super-critical sealing of nuclear, aerospace and aircraft engine applications. Both the Parker Mark I and Mark II Metal Seals are available in a wide range of base metals and surface coatings from PTFE to gold plating. For "zero leakage" applications, the Parker Mark I is
recommended and is available in either internal or external pressure versions, depending upon customer requirements.
The cavity for a Parker SShape Metal Seal must provide controlled squeeze, seal location, adequate sealing surface and structural support.
Parker S-Shape Metal Seals are recommended for use in applications beyond the limits of elastomeric O-ring seals. Typical applications for the Parker S-Seal include jet engine fuel and exhaust seals, nuclear couplings, cryogenics, bakeable vacuu hardware, steam systems, turbine engines, cylinder heads and plastics processing equipment. For complete information on available sizes, metals, coatings and dimensional requirements for S-Seal glands, contact the Parker O-Seal Division Technical Services Department at 310
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Metal-O-rings and C-rings for extreme operating conditions
From ultrahigh vacuum up to 6800 bar (100000 psi) pressure and temperatures from -269°C cryogenic up to +980°C (-425°F up to 1800°F).
Resistant to chemicals to a large extent.
GFD metal O-rings have been developed as a secure sealing of gases and liquids. They even can be used in case of extreme conditions. These static and metallic sealing elements can be applied in ranges of ultrahigh vacuum and up to a pressure of 6800 bar. They are suitable in case of continous temperatures from 269 degrees centigrade below zero up to 980 degrees centigrade above zero and resistant to radioactive radiation, chlorides, corrosion and other aggressive influences. They neither age in use or during storage.
Advantages:
With conventional flanged joints many technical data, from which only very few are precisely available during the design state, have to be known for the calculation. Also the values for the rigidity of the flange, the screws etc. have to be available. The consequence are extensive calculations with imprecise or assumed values and the involved disadvantages. There is always a defined initial tension, no setting and smaller flange and screw dimensions with the GFD metal-O-rings or lip seals. The proof has not to be furnished with complicated and difficult calculations about unknown quantities but simply by adding the forces of pressure to the operating pressures.
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General Information
HTMS Metal- C-Ring seals are made from high temperature alloy strip. The strip is cut to the required length and tig welded. The C-shape is then formed in a tool or is roll formed for bigger sizes. HTMS Metal C Rings are a logical development over our popular Metal O Ring. Metal C Rings have a better spring back then same size Metal O Rings. The seating load or the required bolting force is lower than for similar sized Metal O Rings. HTMS Metal C Rings will compensate greater flange rotation and maintain positive sealing load, better than Metal O Rings.
For sealing thin gas or low viscosity fluids, HTMS recommend to soft plate the bare metal seal with such materials as silver, gold or tin. Also PTFE as a coating is available.
For extreme low leakage requirements at elevated temperatures HTMS also produces spring energized metal C Rings. This “CS” design is basically a metal C Ring with an inserted high tensile spring.
Metal C Ring availability
- From 6 mm to +3000 mm diameter
- Cross section from 0, 89 mm to 12, 7 mm
- In house plating, Silver, Gold, Tin and others
- Spring energized versions for extreme tightness
- Available in shaped forms
- For internal or external pressure
Metal C Rings capability
- Temperatures from cryogenic (- 270°C) up to high temperatures (+ 900°C)
- Ultra hard vacuum and pressures op to +300Mpa
- High pressure capability
- Lowest leak rate
- Radiation resistant
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General Information
HTMS Metal- O-Ring seals are made from high precision metal tube. Contrary to flat gaskets, HTMS Metal-O- Rings require extreme low bolting load. Because they feature a certain resiliency or spring back, HTMS Metal O Rings will compensate minor flange rotation and maintain positive sealing load to the sealing surface.
For sealing thin gas or low viscosity fluids, HTMS recommend to soft plate the bare metal seal with such materials as silver, gold or tin. Also PTFE as a coating is available.
HTMS Metal O Rings are made for internal or external pressure. For high pressure application HTMS advises vented or system pressure assisted Metal O Rings.
For extreme low leakage requirements at elevated temperatures HTMS also produces spring energized metal O Rings. This “OS” design is basically a metal O Ring with an inserted high tensile spring.
Metal O Ring availability
- From 6 mm to +3000 mm diameter
- Cross section from 0, 89 mm to 12, 7 mm
- In house plating, Silver, Gold, Tin and others
- Spring energized versions for extreme tightness
- Available in shaped forms
- For internal or external pressure
Metal O-Rings capability
- Temperatures from cryogenic (- 270°C) up to high temperatures (+ 900°C)
- Ultra hard vacuum and pressures op to +300Mpa
- Handles hydrogen gas up to non- Newtonian fluids
- Moderate pressure capability
- Lowest leak rate
- Radiation resistant
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The metallic ring joint gaskets are manufactured according to the API 6A and ASME B16.20 standards for application at elevated temperatures and pressures. The small sealing area with high contact pressure results in great reliability. The contact surfaces of the gaskets and flange should be carefully processed. Some types of ring-joints are pressure activated, that is, the greater the pressure the better the sealability.
Advantages
* The metal ring joint gaskets have been designed to withstand exceptionally high assembly loads over a small area, thus producing high seating stresses.
Shape and construction
The DONIT TESNIT® ring joint gaskets are produced in several shapes and sizes to meet the most demanding applications.
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The TSMA Mechanical seals are available compliant with UNI EN 12756 (ex DIN 24960) standards.
The metal bellows design avoids clogging caused by dirty liquid and maintains the axial elasticity required to work in crystallising products.
There are also many versions available for high temperature applications and special cartridge designs complete with flange and cooling jackets.
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Type MB1 is Inherently balanced metal bellow seal. This seals are independent of direction of rotation.
The unique feature of this type of seal is that, there is no dynamic 'O' rings and therefore it will never hang up or damage the shaft and sleeve, it also has an ability to handle corrosive as well as abrasive & viscous media.
These seals have self-cleaning & non-clogging construction. With selection of special bellow material it can be used in highly corrosive media.
Applications :
Generally used for handling highly corrosive chemicals, high Temperature applications, petroleum refinery etc.
Material :
Seal Faces : carbon/TC Vs Sic./TC
Secondary Seals : Viton/PTFE/GFT
Metal Components : SS-316
Bellow Material :
* Tatanium
* AM350
* Alloy C 276
* Alloy 20
* Inconel 625
Operating Limits :
Shaft Dia. : 19 to 100mm
Pressure : up to 15 Bars
Temp. : -50 to 350°C
Speed : up to 25 m/s
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SPRING-LINE™ BeCu Spring Fingers and Ground Strips
SPRING-LINE™ beryllium copper gaskets combine high levels of EMI shielding effectiveness with spring-finger wiping and low closure force properties. Beryllium copper's high tensile strength, and superb electrical conductivity are ideal for shielding over a broad frequency range. SPRING-LINE gaskets are available in bright tin, bright copper and bright nickel finishes. Standard length (16 inch, 406 mm) and custom length strips are available in a wide variety of cross sections. For low compression grounding contacts, individual fingers are available with pressure sensitive adhesive for convenient pick-and-stick application.
SPRING-LINE stainless steel card cage gaskets
Designed to provide EMI shielding to the expansion slot area of PC and Server chassis. Chomerics' standard card cage series is available for PCI/EISA slot configurations from 1 to 10. The gaskets can also be modified to include additional slots and variable pitch designs. Designed for cost effectiveness and ease of installation, Chomerics' card cage gaskets fit into most existing chassis with-out modifications. The contact fingers are designed to minimize any snagging during the installation of cards. SPRING-LINE card cage gaskets are available in both standard and custom configurations, including tin-plating, to help meet demanding shielding requirements.
METALEX™ - EMI Frame Gaskets and Strips
These frame-mounted gaskets incorporate a length of MESH STRIP gasketing (with or without elastomer core), securely crimped into the edge of extruded aluminum mounting frames. They are available as ready-to-mount welded aluminum frames, fabricated lengths, or standard 7.5 ft. lengths. In addition to allowing simple mechanical mounting, the aluminum frames function as positive compression stops, preventing over-compression of the gaskets.
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Alco Metal Mount is a rigid EMI aluminum strip with a wire mesh and or elastomer gasket secured into the groove of the extrusion. Alco-Knit gaskets are supplied in standard wire alloys in several configurations and size to meet specific shielding requirements. Alco-Knit Elastomer Core gaskets may be applied for environmental pressure sealing. Alco-Knit or Alco Elastomer Core gaskets may be applied in any combination to one or both sides of the strip. Alco Metal Mount strips are fabricated with specific hole size, location, slots and countersinks for alignment. Ready-to-mount strips are attached with rivets, fasteners or spot welded to flange surfaces. Lengths range from two inches to eight foot lengths and come in multiple profiles. Strips are supplied unfinished or Chromate Coated per MIL-C-5541 Class 1or 3 to enhance shielding performance and corrosion resistance. Alco Metal Mount Strips add structural strength to enclosures and perform as a positive compression stop where a rigid gasket is required.
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Engels supplies a series of high security seals to secure cargo for all international commerce. High security selas also known as barrier seals will also have indicative properties but will be manufactured from a metal or metal cable material that is designed to delay the process of entry. Barrier seals cannot be removed by hand and require the use of bolt cutters.
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High security seal for container
Description
2 parts : the body and the nail
Diameter of the nail : 8.5mm ; Length of the nail : 75mm
Diameter of the body : 20mm ; Length of the body : 31mm
Material :
Nail cover with acrylonitril styren
Body make with acrylonitril styren
Characteristics:
Consecutive numbering ( max 7 letters )
Free marking from 5000 pieces
Certified ISO/PAS 17712
High security seals specification
Accepted by french, american, and english customs
Standard color :
Packaging :
250 pieces per box 10Kgs ; 38x26x16cm
Delivery time :
Available except personalized : about 6 to 8 weeks
Customs tariff : 83 01 10 00
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Metal seal with automatic closing - Balls ended
Description :
width : 9.5 mm
total length : 215 mm
useful length : 190 mm
Material : Steel zinc
Characteristics :
Consecutive numbers
Free marking from 1 000 pieces
maximum of 17 caracters or spaces
Packaging:
per bundle of 100 pieces
made in USA
Option :
30 meters extension
Delivery time:
Neutral model : available on stock Personalized model : about 10 weeks
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Single seals for 13mm (1/2") or 16mm 5/8" plastic strap
with manual sealers or manual hand tools
Stacked seals for 13mm (1/2"), 16mm (5/8"), 19mm (3/4")
plastic or steel strapping with magazine tools.
Swiss-Made quality for highest seal and joint strength
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