Metal jacketed gaskets SPETOMET® MPL
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Working parameters
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T service (°C) |
P max (bar) |
Q max (MPa) |
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-200 ÷ +750 |
200 |
300 |
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500* |
40* |
120* |
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Applications:
Gaskets commonly applied in refineries, chemical and petrochemical industry, applied also in gas production and distribution and in pharma-ceutical industry (MPL® 12 style); applied in flange joints in valve systems, apparatus and pipelines; the gasket features ability to compensate for alignment imperfections, gaskets in metal jackets (styles MPL® 20 ÷ MPL® 29 Z) traditionally have been apllied in petrochemical industry. Manufactured from such metals as soft iron, stainless steel 304 and 316 L, brass and others; graphite, ceramic and other non asbestos materials are used as fillers.
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SPETOMET® MPL® 24 compared to MPL 23 style has features increased resistance characteristics, recommended for gasket thickness oper 3,2 mm and in case of flat flanges or male and female flanges; for flat flanges also the style MPL 24Z with the centring ring is available.
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SPETOMET® MPL® 23 I gasket has additional metal part inside the filler stabilizing the profile (prevents excessive, transverse deformation of the gasket); the metal inside inreases gasket’s strength, by improving its resistance to stress; thickness above 3,2 mm is recommended for this profile in order to apply the metal part; this is a proper solution also for the gaskets with the desired end thickness.
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SPETOMET® MPL® 23 are double jacketed gaskets made from two pieces of metal and soft filler. This gasket is the most com-monly used profile for heat exchangers and other vessels: the two piece metal construction gives extra rigidity which allows for large diameters; may be manufactured in various shapes and dimensions; also the profile with centring ring MPL 23Z.
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SPETOMET® MPL® 21 gasket is similar to MPL 20 but the metal jacket is overlapped and closes the soft filler; maximum width of the gasket is also 6 mm.
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SPETOMET® MPL® 20 flat gasket in single metal jacket with an opening is used for narrow flanges; manufactured from metal sheet, which encapsulates soft filler; such profile protects the soft edge of the gasket’s material; most of gaskets of this style are made from copper and its width is less than 6 mm; for larger cross sections MPL 23 style is recommended.
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SPETOMET® MPL®121 compared to MPL® 12 features better sealability, blowout resistance and physiological safety; metal eyelet mosty from 1.4571 stainless steel; available also MPL® 121 Z style with optimized width of the gasket’s sealing area.
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SPETOMET® MPL® 12 gasket is manufactured from corrugated steel rings covered on both sides with soft sealing material, e.g. graphite or expanded PTFE, corrugation increases conformability of the gasket whereas layers improve the tightness of the sealed joint - also with the ceramic layers for the furnace covers and dust pipelines; applied in tongue and groove, male and female flanges, for flat flanges also as MPL® 12Z style.
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SPETOMET® MPL® 11 gasket from corrugated metal face, used for less severe temperatures where flanges are ligtly loaded; corrugation increases conformability of the gasket; gasket can be galvanized; in rare cases it is applied in this construction, most frequently it is a metal core of SPETOMET® MPL12 style.
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SPETOMET® MPL® 26 gasket in the corrugated metal jacket; it has better conformability due to reduced contact area (corrugations), recommended for gasket's width over 13 mm.
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SPETOMET® MPL® 29 is the gasket composed of corrugated jacket and the metal corrugated filler; better temperature resi-stance, maximum temperature depending only on the metal properties; used also in applications where due to chemical at-tack soft filler cannot be applied; features also high resistance to compression.
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Custom styles:
- metal jacketed gasket with additional PTFE or graphite sealing layers
- gaskets with bars from soft material ( e.g. GUS 32, GUS 42)
- MPL 12 T gasket with inner eyelet from PTFE instead of steel for enamelled flanges
- gaskets in other material options
Availability:
- DIN 7603
- ASTM 16.47
- ASTM 16.5
- PN 86/H-74374
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SPETECH 43-382 Bielsko-Biala 14, ul. Szyprów 17 tel.:+48 33 818 41 33 fax: +48 33 818 46 79 e-mail: spetech@spetech.pl
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