Foam Sealing Membrane
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Datasheet 1008/11 > Page 1 of 1 (replaces datasheet: 1008/8) General description The foam sealing membrane is designed as a waferthin seal, easily installed between flanges, manufactured from corrosion resistant stainless steel with a PTFE membrane to be used to seal off the storage tank content from the foam line. Application description The sealing membrane is intended to be used as acheck valve sealing off the tank product from the foam line in a subsurface system or as a gas proof check valve in an over the top foam system. It is also an integrated part in the HSSS semisubsurface foam unit. Product features SM-100 to SM-300 > B Corrosion resistant construction made from stainless steel and PTFE > Installed between DIN and/or ANSI flanges > Low opening pressure in flow direction High back pressure resistance in back flow direction > Foam A D Self centre flange ring Connections PTFE is resistant to most chemicals (excluding pressurised heated halogen fluorine compounds and alkali metals) > C Fits in pipework flanged according to DIN PN16, ANSI 150 lbs and mm size. Note > Product Data : Internal diameter on stainless is different from normal steel pipe sizes > SM100150200250300 Max. back pressure6 bar6 bar4 bar3 bar3 barMin. required opening pressure (add static tank0,4 bar0,25 bar0,2 bar0,2 bar0,4 bar pressure for minimum required foam supply pressure) Fitting flangesDIN PN 16100150200250300ANSI 150 lbs4"6"8"10"12"Dimensions (mm)A (outside diam.)162220275328376B (min. free length inside pipe)100150200250300 C (excl. gaskets)131415,51920 D (min. allowed pipe diam.)101152201252300Weight1,0 kg2,0 kg3,7 kg6,3 kg9,6 kg MaterialBodyStainless steelGate Stainless steel MembranePTFE Listings or approvals All models Factory Mutual approved > 1 bar =0,1 MPa = 14,5 psi www.skum.com > Technical changes reserved without noticeCopyright 2007 Tyco Safety Products Datasheet Ref. SKM0017 DSA1 size="-4">

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