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OmniLip™ and DynaLip© seals are PTFE-based rotary lip seals. These seals are used in pumps and compressors, engine crankshafts, robotics, diesel engines, pharmaceutical and food processing, blowers, mixers, heavy industry and steel mill applications.
>Sizes to DIN3760 dimensions.
>Low friction, long life.
>Up to 3 meter diameter.
>To suit specific industry needs.
>Broad chemical compatibility.
>Temperature: -50°C up to +200°C.
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SERPENT C 80
Construction
Diagonal layers of cotton duck and rubber, coated with graphite grease. Very good cross-expansion requiring only low gland pressure.
Size Range: Square section 5mm, 6.5, 8mm, 9.5mm in 2 x 3 metre coils. 11mm to 25mm in 1 x 3 metre coils.
Also available as split rings.
Temperature: 1200°C
Pressure: 7 Mpa (70 bar)
Speed: 1m/s
pH: 5 - 11
Services: Hot and cold water, low pressure steam, ammonia and brine.
Applications:
Reciprocating and static. Reciprocating compressors, Piston cooling elbow glands. Drying cylinder expansion glands. Refrigeration machinery. |
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180PR Pumping Ring Seal - High Capacity Pumping Ring Seal for Maximum Heat Rejection and Reliability.
Low Cost, Highly Efficient Cooling. Pumping ring circulates only stuffing box fluid in a closed loop cooling system reducing re-heat costs.
High Temperature Sealing with Standard Materials.
Chemical precipitation minimized. |
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single acting rotary shaft seal
spring loaded lip seal with retainer ring for press-fit installation into axially open housings. wide range of applications in every sector of industry, mainly as protecting element for bearings. |
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CHESTERTON’S 886HT High Temperature Single Bellows Seals are designed to easily replace OEM component seals in the most demanding services.
Proven performance in high temperature services
Versatile slotted gland design
Cartridge seal designed to fit standard pump bores
Available for ANSI/ISO and API pump models
Easily replaces OEM component seals |
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| Crossflon high performance compounded PTFE materials are available as the sealing elements in the exclusive range of Rotary Shaft Seals. Our custom manufactured seals are produced to meet the exaacting requirements of our customers needs. |
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Sealing – with innovative brush solutions from Mink-Bürsten.
• In machine tools, Mink strip brushes provide protection against lubricating emulsions and flying chips
• In woodworking machinery, our sealing elements block off dust and noise
• These brushes make ideal permanent seals for doors, gates, openings, apertures and gaps
• They provide a continuous sealing effect over the entire width of the working surface
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PTFE as a fluorocarbon compound (polytetra-ethylene) is a suitable basic compound for sealing and guiding elements used in compressors.
Highlights
even without lubrication PTFE offers an exceptionally low friction coefficient when working together with metals
PTFE is highly anti-adhesive, no stick-slip effect
PTFE offers high elongation properties enabling sealing and guide rings to be mounted on single-part pistons with great ease
Typical Applications
compressors with full or low lubrication
rotary gas pumps
expansion machinery
liquid gas and vacuum pumps
wobble piston compressors
rotary compressors for loading and unloading silos |
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Chesterton’s Self-Aligning Stationary seal face provides superior seal performance and automatically corrects for stuffing box face misalignment. Avoids damage from improper installation.
Recommended to be used with a 891 Seal |
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Shaft seals with PTFE sealing lip
are primarily used for sealing rotary shafts
Highlights
Outstanding chemical resistance against aggressive media
suitable for high temperature ranges between –60° and +220°C
suitable also for use under low-lube or dry operating conditions
Typical Applications
screw-type compressors
centrifugal devices
meat cutters
fans/blowers
mixers |
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Mechanical seals manufactured in a wide range of general services, made according to standard UNI EN 12756 (ex DIN 24960).
Using a conical spring is wound onto the shaft allows the seal to compensate greater positioning errors than usual and there is no risk of clogging when it is in contact with very dirty and/or viscous liquids.
This type of seal is available for both clockwise or anticlockwise shaft rotation. |
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Mechanical seals of the TB03 series are a cost effective type of a balanced seal. The design features are single seal, balanced, conical spring, dependent on direction of rotation. The dimensions are according to DIN 24960 standard . The TB03 series are equivalent to Burgmann type H12N series pump seals.
They have the same robust and reliable construction as the unbalanced spring seals . These seals are primarily used in the chemical sector and in water pumps.
Performance Capabilities
d = 10 - 80 mm
p = 25 bar
t = -50 – 200 °C
vg = 15 m/s |
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The TB02 series mechanical seals are very popular. The design features are single seal, unbalanced, conical spring, dependent on direction of rotation. The dimensions are according to DIN 24960 standard . The TB02 series are equivalent to Burgmann type M3 series . Extremely rugged and reliable, they cover a wide spectrum of applications – in water pumps, sewage pumps, submerged pumps, chemical pumps, etc.
Performance Capabilities
d = 10 - 80 mm
p = 10 bar
t = -40 - 205 °C
vg = 10 m/s |
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Chesterton’s 442M Split Mechanical Seal
External springs are non-clogging and act as a wear gauge.
Double captured gland and holder gaskets resist extrusion.
Narrow face rotates to minimize wiping effect.
Patented centering buttons provide automatic centering and are FDA approved for sanitary conditions.
Captive shaft O-ring makes installation simple.
Dual flush ports allow piping from either side.
Designed specifically with high-runout equipment in mind
Split design allows quick, economical installation without equipment disassembly.
Economical repair kits allow the seal to be field refurbished
442M split mixer seal is specifically designed to reliably perform in services which routinely exhibit large amounts of radial shaft runout.
Large internal clearances allow radial shaft movement without damaging seal components.
Patented Automatic Centering Maximum radial runout performance demands perfect centering.
Unique centering "buttons" positively center the gland about the rotating element. This ensures maximum radial travel in all directions. Face "Wiping" is minimized in rotating narrow face designs, if the equipment shaft is not concentric to the stuffing box bore, particles are prevented from being transported across seal face wear track due to the wiping action created. The lapped seal faces are nprotected from damage. |
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OmniSeal® seals are high performance spring energized PTFE seals. These are capable of handling extreme service conditions and are used in a variety of applications, such on high temperature / high pressure (HTHP) Ball Valves, rocket and jet engines, robotics, racing cars, oil and gas applications and others.
>Temperature: -260°C to +300°C.
>Pressure: Vacuum to +10,000 bar.
>Surface speeds: +40m/s.
>Low and controlled friction, low wear.
>Broad chemical compatibility.
>High pressure and temperature combinations.
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Features:
- Teflon® compounds with almost universal chemical compatibility
- Stainless steel springs for corrosion resistance
- Wide temperature range - 400ºF to +600ºF
- Static and dynamic applications
- Vacuum to 60,000 psi
- Can run dry or lubricated
- Low friction seals
- Sizes up to 60" diameter |
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Spring-energized seals made of PTFE are used for sealing reciprocating pistons and rods as well as rotary and swiveling applications.
Highlights
outstanding chemical resistance against aggressive media
suitable for high temperature ranges between –95°C and +300°C
suitable for media pressures up to 700 bar
Typical Applications
needle seals in painting lines
metering devices
valve seals in bottling lines
automotive and aerospace applications
medical technology/endoscopy
solenoid valves
measuring technology/HPLC-technology
general industrial machinery
chemical equipment |
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The design features are single seal, unbalanced, conical spring, dependent on direction of rotation. The dimensions are according to DIN 24960 standard . The TB01 is equivalent to Burgmann type M2N . They are cost effective for basic applications such as circulating pumps for water and heating systems.
Performance Capabilities
d = 6 - 38 mm
p = 10 bar
t = -20 – 180 °C
vg = 15 m/s |
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Stuffing Box Packings (Gland Packings) are machine-braided cords of different materials, used for sealing rotating shafts in pumps, ventilators and fittings. Packing sections are laid round the shaft in circles and then compressed with the gland. For dynamic applications, the compression must be so adjusted that a certain minor amount of leakage between packing and shaft may emerge. Harmful dry running is prevented thus and the leakage is dissipated or returned. Various materials and material combinations are used according to the individual case of application. Special lubricants are incorporated into the braiding to improve running properties.
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9000 EVSP Simplified™
Excellent sealing
* Patented "cup & cone" design permits selective component compression and controlled radial flow for effective sealing on I.D. and O.D.
* End rings act as wiper rings to restrict graphite particle transfer, prevent extrusion and provide extra resiliency
Custom design capability
* Patented cup & cone design can provide sealability in valves as shallow as three-ring cross sections
* For deep stuffing boxes requiring more than a 7-ring set, machined / split carbon bushings can shorten the box depth
Grade 250 (Style #4525) for general services
Grade 580 (Style #4540) for nuclear services
* Choice of end rings: Style 98 (general service) or Styles G-700 or 1398 (nuclear service) |
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Dynamic sealing
