|
|
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 (- 270C) up to high temperatures (+ 900C)
- Ultra hard vacuum and pressures op to +300Mpa
- High pressure capability
- Lowest leak rate
- Radiation resistant
|
|
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 (- 270C) up to high temperatures (+ 900C)
- Ultra hard vacuum and pressures op to +300Mpa
- Handles hydrogen gas up to non- Newtonian fluids
- Moderate pressure capability
- Lowest leak rate
- Radiation resistant
|
|
Polytetrafluoroethylene (PTFE) is an almost chemically inert thermoplastic material which retains useful mechanical properties over a wide range of temperatures. These characteristics have caused PTFE to be used as a sealing material, particularly where lubrication problems exist.
In order to meet the demanding physical properties required, Crossley 'O' rings are manufactured from moulded stress-relieved virgin materials that are processed under strict controls to ensure they meet dimensional stability and conform to the highest standards. |
|
These seal rings are normally used in sets as valve stem or reciprocating pump packings. A set is usually made up of a male and female end rings for ease of seating in the gland.
Two standard 'V' forms are used. The first 60 and 90 levels for low and medium pressure service, and the second has 90 levels only, for high pressure service. In both cases a central gap is formed to give the flexure required under pressure.
The number and combination of rings per set is dependent upon the pressure and the depth of the gland. |
|
Use of mounting thread environmental seal materials maximizes the efficiency of the NPT seal. Conax Buffalo recommends
- Teflon tape for use up to 450F (232C)
- Grafoil tape for use between 450F (232C) and 900F (482C). |
|
Scraper strip
Dual component with hard backing.
Replaces fixing rail.
Product no. 70075070
Each length m 50
Pack. Bundle
Width x Height mm 13 x 14 |
|
| CoorsTek offers a wide variety of long-life, heat-stable, and corrosion-resistant ceramic hard-face seals using high-grade aluminas, silicon carbide, tungsten carbide, carbon graphite, and specialty polymers. |
|
Alumina ceramics:
AI2O3-99% AI2O3-97%
Purigy--------------------% 99.5 97.0
Density-------------------g/cm3 3.89 3.71
Hardness Vickers1kg-------Kg/mm2 2000 1900
Modulus of Elasticity-----GPa 330 280
Fracture toughness--------Mpa*m1/2 3.8 3.5
Flexural Strength (MOR)---MPa 330 320
Compressive Srrength------MPa 2600 2300
Thermal Expansion (CTE)---10-6/K 8.2 8.0
Thermal conductivity------W/(m.K) 30.0 26.0 |
|
Composite gaskets :
MS Type
Composite Gasket
Strips
Gasket
PICSEAL
Composite gasket
GTMC 21
|
|
A major strength of James Walker Group companies is their ability and willingness to design, develop and manufacture customised products for all sectors of industry.
We have vast experience of solving customers' individual problems, and possess the technological expertise along with the flexible production facilities required to ensure that a customised product will meet your exact operational specifications. |
|
Orobica Plast-Gom also produces gaskets and technical items for motor, alimentary, bottling, pharmaceutical, building, electric, cardboard industry to satisfy customer's demands.
|
|
Obvious advantages of the TwinTec
Foam L 3000 you should consider
thoroughly:
● achieve more goals with one
gasket thanks to a triple material
compound design
● improved tolerance compensation
by enlarged head width
● optimized recovery performance
● perceptible snugly closure and
soft, smooth closing force
● optimized u-value performance
● universal feet fitting groove
widths of 4 to 5 mm
● special gasket lip design for continuous
sealing edge applications
● gasket corners can be either
mitered or welded
● recyclable without any problems |
|
The design features are single seal, unbalance, independent of the direction of retation, single spring and elastomer bellows. The bellows is not subjected to any torsional stress and its ingenious design incorporates several functions, as seal face carrier, secondary sealing element and drive collar. The seal face is driven through the spring and L-rings. There are not bonded joints and all the face materials are interchangeable without having to modify any dimensions. Highly recommended for duties with media containing solids e.g. in waste water and sewage applications.
Performance Capabilities
d = 10 - 100 mm
p = 12 bar
t = -20 120 C
vg = 10 m/s |
|
Extruded and jointed "O" rings are our preferred method of production, but moulded versions are available if specifically requested.
Both silicone & fluorosilicone with all varieties of fillers are available for the manufacture of "O" rings.
The advantages of vulcanised "O" rings are:
- Cost Effective
- No tooling costs
- Reduced lead times
- Better surface finish (zero flash)
- Allows hollow sections to be used for lower compression force
-Custom lengths easily produced (up to approx 2m developed length) |
|
Valves and jointsInfo-Catalogue
Control and regulation of liquid.
Orobica Plast-Gom produces gaskets for butterfly valves, joints according to DIN - ISO - CLAMP - S.M.S. - BS - IDF standards for alimentary, pharmaceutical and chemical industries.
|
|
Trelleborg Glazing strip is designed for factory glazing
in machined grooves. The glazing strip is fitted with a
cord that makes it particularly suitable for mechanical
fitting, since the cord prevents the strip from stretching
in its longitudinal direction.
Manufactured from solid black EPDM rubber. For
use in accordance with MTK fitting instructions. |
|
Exceptional resistance to heat and cold.
• Almost zero water absorption (max. 1%).
• Good resistance to settling.
• Soft and resilient.
• Resistant to ozone and UV light.
• Resistant to ageing.
• Manufactured from black EPDM cellular rubber |
|
The Flat or shaped range of lifting bags is used in a very wide spectrum of applications: tightness, squeezing, flanging, handling, isolation...
Significant means in engineering and design departments, and a flexible production tool wich will provide the best response to your needs. Do not hesitate to contact us and we will answer you very quickly. |
|
Customized production of o-rings
You can't find what you're looking for in our vast range? No problem - COG customised production will be pleased to help with your special requirements. Even the most "unconventional" seals can be individually manufactured at our own production facilities (in-house compounding, in-house development, in-house toolmaking). In the materials and qualities of your choice - within a matter of days. Singly and in large or small batches. It's an offer that few other manufacturers can match. And another thing that you'll be pleased to hear: customised production at COG costs less than you think. Let's talk about your aims!
|
|
| O-Rings Seals in standard and metric dimensions and different compounds always available ex stock. |
|
O-rings, produced according to DIN 3771: All current materials: ACM, AU, CSM, CR, EPDM, EPM, FEPM, FFKM, FPM, FYMQ, HNBR, IIR, NBR, NR, PTFE, PVMQ, VMQ.
Inside diameter from 0.74 to 1400 mm; Strength of thread from 0.6 to 30mm
|
|
Our seven million stocked 'O' rings include inch sizes and metric sizes to a range of international, national and industry standards.
These are held in a variety of general and high performance elastomers to suit the vast majority of industrial and specialist oil and gas sector applications. |
|
| Broad chemical resistance, except against liquid alkaline metals and fluorine gas under pressure. Good sliding qualities, low wear and tear. Temperature range from -200 C to +260C. PTFE has hardness of approximately 95 Shore and installing these O-rings in split grooves is recommended or alternatively the use slit or sheathed types due to the low elasticity. |
|
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 Franois, 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 |
|
Valves and jointsInfo-Catalogue
Control and regulation of liquid.
Orobica Plast-Gom produces gaskets for butterfly valves, joints according to DIN - ISO - CLAMP - S.M.S. - BS - IDF standards for alimentary, pharmaceutical and chemical industries.
|
|
| Sealing rings of reinforced moulded graphite are solving problems on Bridgeman-type valves widely used in power generation... |
|
| Water-tight joint constructions with attachable elastomeric profile. Robust and age-proof elastomeric quality that in combination with the stable edge profile provides an excellent drive-over comfort in cold temperatures. |
|
Insulating silicones:
Insulating GT
Silicones
Insulating GT
Fluorosilicones
Insulating
Cellular
Silicone foam
Aeronautic
quality
elastomer
Industrial
quality
elastomer
Silicone shock
absorber |
|
RB-SiC a-SSiC
Purity ---------------------% 90 98
Density ---------------------g/cm3 2.98 3.10
Hardness Vickers 1kg -----Kg/mm2 2200 2400
Modulus of Elasticity -----GPa 390 420
Fracture toughness -----Mpa*m1/2 4.3 4.5
Flexural Strength (MOR) -----MPa 420 450
Compressive Strength---------MPa 2500 3200
Thermal Expansion (CTE) -----10-6/K 4.3 4.4
Thermal Conductivity -----W/(m.K) 120 140 |
|
Patented composite gasket consisting of a massive LATTYgraf E expanded graphite sealing dam, die-formed in place, between stainless steel rings used as compression limiters.
The main feature of this gasket lies into a metal-to-metal contact. During operation, the compression limiter ring protects the LATTYgraf E seal by absorbing all mechanical stresses from the pipework, thermal shocks, etc.
LATTYgraf REFLEX is warranted to seal under extreme and variable conditions. High elastic recovery.
For all bolted joints: valve bonnets, valve flanges, pump flanges, manholes, etc.
Suitable for any application. Proven in the most demanding nuclear and industrial applications. |
|
|
|
