Kammprofile gaskets SPETOMET® MWK
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Working parameters
| T service (°C) |
P max (bar) |
Q max (MPa) |
| -200 ÷ +750 |
420 |
600 |
| 500* |
100* |
200* |
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Applications:
power generation, chemical and petrochemical industries, refineries, high pressure and high temperature valves, high external loads, dange-rous, toxic and flammable media, etc.
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SPETOMET® MWK 65** gasket has the same sealing element as SPETOMET® MWK 55 but a centring ring with
pre-determined breaking groove is added to improve blowout resistance.
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SPETOMET® MWK 60** gasket has the same sealing element as SPETOMET® MWK 50 but a centring ring with
pre-determined breaking groove is added to improved blowout resistance.
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SPETOMET® MWK 55** is an original gasket developed at SPETECH; it features increased recovery and better confor-mability, at the same time it reduces the differences of contact stress in radial direction, which prevents the edge of the gaskets from excessive loads; gaskets recommended for wide flanges (for the width >20mm).
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SPETOMET® MWK 50** B for round boiler inspection holes, original design engineered at SPETECH, the profile allows for relatively deeper groves and thus thicker sealing layers can be used, it results in good tightness characteristics
even in the worn flanges with substancial surface imperfections, the gasket can be insterted into the boiler’s opening. Also available customized profile MWK 10 B with the metal core grooved in traditional way.
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SPETOMET® MWK 50** gasket has an original profile engineered at SPETECH , the features distinguishing it from other sealing solutions are better recovery, so called metal core shape flexibility effect due to the propotions betwe-en the groove depth and width, improved conformability although the gasket has smaller thickness; this last feature allows for the installation of MWK 50 even in the shallow grooves where usually soft gaskets are applied.
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SPETOMET® MWK 28 has the same profile as MWK18; its centring ring has a pre-determined breaking groove increasing gasket’s blowout resistance.
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SPETOMET® MWK 25** has the same profile as MWK 15 but with the centring ring; the ring has a pre-determined bre-aking groove which increases its blowout resistance.
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SPETOMET® MWK 21 gasket with the centring ring that has a pre-determined breaking groove – when the joint
fails and the medium escapes abruptly from the system the vibrations of the gasket occur – in these circumstances the gasket “breaks” on the groove and centring rings falls out.
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SPETOMET® MWK 20 has the sealing element exactly the same as that of MWK 10, with additional outer centring ring; integral centring ring of thickness 2 or 3 mm, manufactured in traditional technology; at present in order to meet the increased safety standards this style is replaced by MWK 21; MWK 22 is the style for similar applications but with the special centring ring.
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SPETOMET® MWK 18 is a gasket used in the same applications as styles SPETOMET® MWK 10 and MWK 20 Different depths of the grooves result in the built up of the contact stress in the middle of the gasket’s width which increases its blowout resistance and sealability.
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SPETOMET® MWK 15** is a gasket recommended for wide flange faces (for the width >20mm); the grooves of
the gasket have different depth which results in the even radial distribution of contact stresses and protect it
from being overloaded on the outer circumference of the gasket.
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SPETOMET® MWK 10 is a conventional kammprofile gasket with the grooves of the same depth; the gasket is applied first of all in tongue and groove flanges, less frequently in male and female flanges; recommended width of the MWK 10 gasket should not exceed 15 mm due to uneven radial distribution of contact stresses; maximum outer diameter of the gasket – 2000 mm.
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** - patent pending
Custom styles:
- with non-standard groove depth and profile
- with different gasket’s sealing area (styles with centring rings) according to norm EN-1514 ISO 9001
- in PTFE or silver jackets for chemical applications
- with locating lugsfor easy installation
- concentically joined with spiral wound gasket
-with different kinds of bars, e.g.. MPL23, MWK10, MPL10, MPL12
- other than round shapes, e.g. rectangular
- other materials on request
Availability:
DIN2697, EN-1514-4,
EN-12560-4, ASME 16,5, ASME 16,20
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