|
|
Hot-pressed graphite:
Density-------------------g/cm3---------1.68
Hardness------------------HS------------65-80
Compressive Strength------MPa-----------147
Flexural Strength (MOR)---MPa-----------54
Frictional Coefficient----%-------------0.15
Porosity------------------MPa-----------0.3
Carbon Graphite:
Epoxy Impregnated (H) M106H M120H N205H M252H
Density -----------------g/cm3 1.75 1.70 1.70 1.72
Hardness-----------------HS 85 80 70 45
Flexural Strength (MOR)--Mpa 65 60 60 45
Compressive Strength-----MPa 200 180 180 120
Furan Impregnated (K) M106K M120K M205K M252K KC170
Density------------------g/cm3 1.75 1.70 1.70 1.72 1.82
Hardness-----------------HS 90 85 70 48 80
Flexural Strength (MOR)--Mpa 67 62 62 47 68
Compressive Strength-----MPa 200 180 180 120 200
Phenolic Impregnated (F) M106K M120K M205K M252K KC573
Density -----------------g/cm3 1.75 1.70 1.70 1.72 1.85
Hardness-----------------HS 85 80 70 45 110
Flexural Strength (MOR)--Mpa 60 55 55 40 85
Compressive Strength-----MPa 200 180 180 120 370 |
|
OmniSeal® seals with special designed back-up rings are capable of handling extreme high temperatures / high pressure (HTHP).
>High pressure and temperature combinations.
>Temperatures from -270°C to +320°C.
>Hard vacuum up to +3000 bar. |
|
Chesterton’s 186HTA Single Cartridge High Temperature Metal Bellows seal designed to meet API requirements for greater seal reliability in the most demanding services.
Twelve (12) convolution bellows core versus the industry standard of nine (9).
Achieves maximum bellows plate thickness while not compromising the bellows spring rate, which means controlled spring rate, lower heat generation and greater seal reliability.
Proven nesting ripple bellows design:
In the nesting ripple design, all bellows plates are identical and contoured to permit nesting when compressed.
Nesting distributes pressure uniformly accross the span of the bellows - less stress at the bellows welds. |
|
hydraulic, single acting
asymmetric piston seal for standard applications. design provides stable fit in the housing, ultimate sealing effect over a wide temperature range. avoids extensive drag pressure. back-to-back arrangement with guidering in between for double acting pistons or to separate different fluids. |
|
James Walker is the worldwide one-stop-shop for all hydraulic sealing requirements.
Our family of hydraulic sealing components provides the optimum sealing solutions for almost every hydraulic application - from the most accurate instruments and control actuators up to the heaviest forging and extrusion presses.
Each product has been specially developed and proven to give:
- Optimum equipment performance
- Reduced leakage
- Low friction operation
- Long trouble-free operating life. |
|
CHEVRON®
Vee-ring packing with unique multiple lip design automatically responds to changes in system pressure; exceptionally reliable seal for rods, rams, pistons and plungers. Also available in Deep Vee Ring design for large diameter, deep stuffing box applications.
GARTHANE®
Tough urethane seal with excellent tear and abrasion resistance; withstands a wide range of temperatures, pressures and chemicals. Ideal for plungers, pistons, rams and rods.
Polytop Sets
Combining the strength and flexibility of CHEVRON® rings with the abrasion resistance of GARTHANE® U-Seal, the unique Polytop Set offers maximum sealing performance and reliability. |
|
| The Labyrinth Seal is an effective barrier against water and other contaminants that destroy bearings. Non-contacting rotary and stationary elements provide a restricted flow path and utilize centrifugal force and gravity to prevent intrusion of contaminants into the bearing chamber. Unlike common lip seals, the Labyrinth Seal will not damage shafts and has a virtually unlimited life. |
|
Knowledge and experience
For many years, ECONOMOS® has supplied seals and sealing solutions to the hydropower industry. However, we offer more than seals - our knowledge and experience gained from long term customer relationships are important factors which enable us to understand and solve your sealing requirement and are essential contributing factors for the high quality of our products.
Virtually no limits
The hydropower industry in particular has a high demand for special sealing solutions and large diameter seals produced in small (to medium) quantities. For these seals ECONOMOS® uses its unique manufacturing system - CNC lathe production of seals with a diameter range from 4 mm to 4.000 mm and a virtually unlimited diameter range of welded seal profi |
|
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!
|
|
Competitively priced seals for rotary shafts
- Suitable for many plant and machinery duties.
- Full range of designs for different working environments.
- Choice of elastomeric lip materials and metal casings.
- All standard shaft sizes included. |
|
Mechanical seals are used for the sealing of rotating shafts against a stationary housing, e.g. in pumps and agitators. The stationary" part of the seal is usually located at the housing, the rotating" part is fixed on the shaft. The high-precision face-machined sliding faces rotate axially in opposition. The sliding faces are pressed against each other by means of spring force, thus preventing the opening of the seal. The seal faces are statically sealed against the housing and the shaft by secondary seals (O-rings). With the entry of the pumped medium into the minimal sealing gap a lubricating film is generated and the sealing effect is thus obtained.
The design, arrangement and combination of materials of the seal is basically determined by pressure, temperature, speed of rotation and quality of the pumped medium. Shaft diameters of 5...500 mm, pressures from 10 torr ....250 bar, temperatures from -200°C... +450°C and sliding velocities up to 150 m/s limit the operating range of mechanical seals. Additional seal supply systems or buffer fluid systems may be required, dependent on the mode of operation, the quality of the medium and the seal arrangement.. |
|
| Conax Buffalo Technologies designs and manufactures a complete line of pressure/vacuum mechanical sealing glands and assemblies for wires and probes for virtually every industry. A wide range of catalog standard sealing glands are available from stock, while unlimited custom designs are also available for unique wire or probe sealing applications. |
|
Standard balanced mechanical seal with a single spring washer and pentagonal drive.
The areas of applications are huge due to the protection design for the spring washer: pumps conveying slurries for the sugar industry, paper industry, extracting industry, for heavy industries, all simple assemblies possible (cartridge, tandem, quench, etc ...). |
|
Chesterton’s 442 Split Mechanical Seal construction enables the seal to handle pressures three and one-half times higher than conventional split seals. The 442 is the only split seal specifically designed to be able to withstand vacuum in the stuffing box. This makes it the ideal seal for main and auxiliary condensate pumps.
Fast, Easy Installation
The 442 provides the sealing capability of traditional mechanical seals without the need to disassemble and realign the pump. All parts are split to slip around the shaft and assemble in place. The 442 seal is a dramatic time saver with fast, easy installation, plus it can be rebuilt quickly and easily. Downtime is minimized and driver/equipment alignment is eliminated.
Main Features:
Fast, easy installation without the need for pump disassembly.
Specifically designed to seal in applications where stuffing box is in a vacuum.
Fast, economical and easy rebuild of seal in the field eliminates the need for a spare seal.
Adjustable gland fits 2, 3 or 4 bolt patterns. |
|
Type 18 High-Pressure Seal
High-pressure, high-speed balanced cartridge seal for boiler feed applications.
Features
* High-pressure, high-speed stationary design for clean product
* Repaired at the factory or repair center.
Type 19 Mixer Seal
Double concentric cartridge seal
Features
* Designed with stationary springs for vertical mixer and other equipment with excessive radial shaft movement
* Can handle up to 0.125" (3.18 mm)TIR
* Repair at factory or repair center. |
|
Type 28 compressor dry-running gas seals have been the industry standard since early 1970 for gas-handling turbomachinery. Utilizing John Crane's patented spiral groove pattern, these seals are non-contacting in operation. During dynamic operation, the mating ring/seat and primary ring/face maintain a sealing gap of approximately 0.0002 in./5 microns, thereby eliminating wear. These seals eliminate seal oil contamination and reduce maintenance costs and downtime. Single, double opposed, and tandem cartridge seals are capable of handling a wide variety of gas sealing applications in the gas collection/transmission, refining, chemical and petrochemical processing industries.
|
|
Seals have been developed to operate on propeller shafts of small, medium and large size boats where a high level of reliability is required.
The special design allows large axial displacement and the use of suitable material guarantees as well as high resistance to corrosion and high mechanical resistance to withstand stresses produced by vibrations.
The installation of mechanical seals in this particular field has solved problems such as corrosion during long periods of inactivity and shaft damage caused by traditional stuffing boxes. Power absorption is considerably reduced as well. |
|
Single seals or double seal units with integral flanged and jacketed casings.
Cartridge seals are available with an integral bearing mounted in the seal housing and are available in various options according to the seal type specified.
Specific seals are designed to compensate for use in mixers with high side entry, low side entry and lateral side loading, or for many other machines such as driers, reactors and dynamic filters.
In addition to standard versions we produce specials designed in accordance to specific customers' drawings for use in the pharmaceutical, food and chemical industries. |
|
Chesterton’s 442M Split Mechanical Seal
The 442M provides the sealing capability of traditional mechanical seals without the need to disassemble and realign the pump. All parts are split to slip around the shaft and assemble in place. The 442 seal is a dramatic time saver with fast, easy installation, plus it can be rebuilt quickly and easily. Downtime is minimized and driver/equipment alignment is eliminated.
Main Features:
Fast, easy installation without the need for pump disassembly.
Fast, economical and easy rebuild of seal in the field eliminates the need for a spare seal.
The 442M avoids equipment dis-assembly during seal change.
Designed to handle the high runout conditions of mixers and agitators.
Patented automatic centering.
Exclusive design features ensure maximum performance.
Compact seal design occupies minimum space.
The ultimate split seal for mixers, agitators and specialty equipment .
ISO 9001 CERTIFIED |
|
Standard pressure tanks, manufactured in accordance with API 682 standards, can be supplied in various applications using circulation pumps and process instruments for controlling seal running parameters.
For heavy duty applications there are complete internal flushing and heating/cooling coils to cater for customer's requirements. Proper nitrogen gas pannels are available for dry-running mechanical seals. |
|
Cartridge mounted mechanically balanced seals, manufactured in accordance with API 682 standards. These seals are designed for heavy duty applications and/or applications which are dangerous to both people and surrounding atmosphere.
They offer the best performance possible in terms of reliability and gaseous emission control, making them the ideal solution for petrochemical plants.
They are available as single or double seal construction in the various versions required by API Standards.
The metallic bellows designs are particularly suited to high temperature and/or corrosive liquids. |
|
TBA Mechanical Seals are available compliant with standard UNI EN 12756 (ex DIN 24960).
They are supplied with springs outside of the product, so they can be used in particularly dirty and/or viscous liquids and can be fitted to parallel shafts and sleeves. No shoulder or stepped shaft is required. |
|
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. |
|
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
|
|
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
|
|
Technic characteristic
Single seal
Balanced/unbalanced can be chose
Multiple springs
Equivalent to type 9T/8-1T/9BT/8B1T series |
|
Double seals of the TB08 series have the same design-features as the “TB05” of single seals (easy-to-replace seal faces, etc.). Apart from the installation length of the drive collar, all fitting dimensions (d1<100 mm) conform with EN 12756 (DIN 24960). This seals is equivalent to Burgmann type H74-D Pump Seals.
Performance Capabilities
d = 14 - 200 mm
p = 25 bar
t = -50 – 200 °C
vg = 20 m/s |
|
|
|
Dynamic sealing
