Simrit 2007 Catalogue O-ring

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Cover Seals | Merkel Cover Seal PU 83Merkel Cover Seal PU 83Merkel Cover Seal PU 83MaterialTPU profile ringMaterialCodePolyurethane 95 AU V142/94 AU 925Operating conditionsMaterial 95 V142/94 AU 925Fig. 1 Merkel Cover Seal PU 83Product descriptionSingle-piece, double-acting Merkel compactseal made from low temperaturepolyurethane for static sealing, outersealing.Product advantagesInterchangeable for O-ring housingsand O-ring with back-up ringHigh reliabilitySimple and secure installationSimplified stockkeepingGas-proof height.Application Higher operating pressure(up to 60 MPa) Gap for breathing (pipe expansion) Short rate of increase of the pressure(end position damping) Alternating in situ operating pressure Nominal diameter up to 2000 mm.Presses, steel industry, wind powerplants, cranes, construction machinery,industrial vehicles, forestry equipment,injection moulding machines.Temperature range in °CHydraulic oils HL, HLP –30 … +110HFA fluids +5 … +50HFB fluids +5 … +50HFC fluids –30 … +40HFD fluids –Water +5 … +40HETG (rapeseed oil) –30 … +60HEES (synthetic esters) –30 … +80HEPG (glycol) –30 … +50Mineral greases –30 … +110Pressure p in MPa 60The specified values are maximum values and must not be applied simultaneously.Surface qualitySurface roughness R a R maxSliding surface 0,8 µm 3,2 µmGroove base 1,6 µm 6,3 µmGroove flanks 6,3 µm 20,0 µmLead-in chamfer* 0,8 µm 3,2 µm* burr-free transitionDesign notesPlease observe our general design notes in → Technical Manual.Tolerance recommendationFor pressures up to 60 MPaNominal Ø D Borehole Shaft≤800 H7 f7>800+0,0+0,1–0,05–0,15Fitting & installationCareful fitting is a prerequisite for the correct function of the seal.→ Technical Manual.134© Freudenberg Simrit GmbH & Co. KG | O-Rings and Static Seals Catalog 2007
Cover Seals | Merkel Cover Seal PU 83Mode of operationFig. 2O-ring with PTFE back-up ring at 40 MPa operating pressureFig. 3Cover Seal at 40 MPa operating pressure© Freudenberg Simrit GmbH & Co. KG | O-Rings and Static Seals Catalog 2007 135
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O-RingsFreudenberg GroupO-Rings and
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The Individual Materials We have De
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Simrit SeminarsYou visit our Academ
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Tailor-made. Immediately. Economica
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We speak your language:As a worldwi
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Table of Contents / Design Types in
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ISC O-RingArticle listd 1 d 2 Mater
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ISC O-Ringd 1 d 2 Material Article
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Page 83 and 84: ISC O-Ringd 1 d 2 Material Article
Page 105 and 106: Back-Up Rings | Back-Up Ring SRABac
Page 107 and 108: Back-Up Rings | Back-Up Ring SRAD N
Page 109 and 110: Back-Up Rings | Back-Up Ring SRIBac
Page 111 and 112: Back-Up Rings | Back-Up Ring SRId N
Page 113 and 114: Back-Up Rings | Spiral Back-Up Ring
Page 115 and 116: Profiles for Static ApplicationsPro
Page 117 and 118: Profiles for Static ApplicationsX P
Page 119 and 120: Profiles for Static ApplicationsCor
Page 121 and 122: Usit Rings | Usit Rings U, UA, USFU
Page 123 and 124: Usit Rings | Usit Rings U, UA, USFA
Page 125 and 126: Usit Rings | Usit Rings U, UA, USFd
Page 127 and 128: Usit Rings | Usit Rings U, UA, USFA
Page 129 and 130: Plug Connections | Plug & Seal Plug
Page 131 and 132: Cover Seals | Merkel Cover Seal PU
Page 133: Cover Seals | Merkel Cover Seal PU
Page 137 and 138: Cover Seals | Merkel Cover Seal PU
Page 139 and 140: Cover Seals | Merkel Cover Lid Seal
Page 141 and 142: Cover Seals | Sealing Cover GA, GSA
Page 143 and 144: Packing Rings | Merkel Endless Pack
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Simrit 2007 Catalogue O-ring

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