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Type 462 Available designs 40 18 Cap H2 Adjusting screw with bushing 19 Lock nut 9 Bonnet 16 Spring plate 54 Spring 12 Spindle 17 Spring plate 14 Split ring 60 Gasket 8 Guide 57 Pin 61 Ball 7 O-ring disc 2 Outlet body 1 Inlet body Conventional design Threaded connection Conventional design Threaded connection Type 462 11 Bonnet spacer Outlet flange 2.4 15 Bellows Outlet adaptor 2.1 60 Gasket Inlet flange 48 Balanced bellows Threaded connection Conventional design Flange connection 07/02 LWN 481.01-E
Type 462 Available designs – materials Materials Item Component Remarks Type 4623 Type 4622 Type 4624 1 Base / Inlet body 2 Outlet body Threaded connection Flange connection 2.1 Outlet adaptor Flange connection 2.4 Outlet flange Flange connection 7 O-ring disc 7.4 Soft seal O-ring 8 Guide 9 Bonnet 11 Bonnet spacer 12 Spindle 14 Split ring 15 Bellows 16/17 Spring plate 18 Adjusting screw with bushing 19 Lock nut 40 Cap H2 “N” “K” “D” “L” “C” Balanced bellows design Balanced bellows design Balanced bellows design Balanced bellows design Balanced bellows design 48 Inlet flange Flange connection 54 Spring 57 Pin 60 Gasket 61 Ball Please notice: Standard Optional 1.4104 1.4404 1.4404 SA 479 316L SA 479 316L 1.4404 1.4404 1.4404 SA 479 316L SA 479 316L SA 479 316L 0.7043 1.4404 1.4404 Ductile Gr. 60-40-18 SA 479 316L SA 479 316L 1.4404 1.4404 1.4404 316L 316L 316L 1.4404 1.4404 1.4404 316L 316L 316L 1.4404 1.4404 1.4404 SA 479 316L SA 479 316L SA 479 316L NBR NBR NBR Nitrile-Butadiene Nitrile-Butadiene Nitrile-Butadiene CR CR CR Chloroprene Chloroprene Chloroprene EPDM EPDM EPDM Ethylen-Propylene-Diene Ethylen-Propylene-Diene Ethylen-Propylene-Diene FPM FPM FPM Fluorocarbon Fluorocarbon Fluorocarbon FFKM FFKM FFKM Perflouro Perflouro Perflouro 1.4104 tenifer 1.4104 tenifer 1.4404 Chrome steel tenifer Chrome steel tenifer 316L 1.4404 / SA 316L 1.4404 / SA 316L 1.4404 / SA 316L Upper connection of balanced bellows Upper connection of balanced bellows Upper connection of balanced bellows 0.7043 1.0460 1.4404 Ductile Gr. 60-40-18 Carbon steel 316L 1.4404 1.4404 1.4404 316L 316L 316L 1.4404 1.4404 1.4404 316L 316L 316L 1.4021 1.4404 1.4404 420 316L 316L 1.4404 1.4404 1.4404 316L 316L 316L 1.4104 1.4104 1.4404 Chrome steel Chrome steel 316L 1.4571 1.4571 1.4571 316Ti 316Ti 316Ti 1.0718 1.0718 1.4404 Steel Steel 316L 1.4104 / PTFE 1.4104 / PTFE 1.4104 / PTFE Chrome steel / PTFE Chrome steel / PTFE Chrome steel / PTFE 1.4104 1.4104 1.4404 430 430 316L 1.0718 1.0718 1.4404 Steel Steel 316L 1.4404 1.4404 1.4404 316L 316L 316L 1.1200 / 1.8159 / 1.7107 1.1200 / 1.8159 / 1.7107 1.4310 Carbon steel Carbon steel Stainless steel 1.4310 1.4310 – Stainless steel Stainless steel – 1.4310 1.4310 1.4310 Stainless steel Stainless steel Stainless steel Graphite / 1.4401 Graphite / 1.4401 Graphite / 1.4401 Graphite / 316 Graphite / 316 Graphite / 316 1.3541 1.3541 1.4401 Hardened stainless steel Hardened stainless steel 316 Type 462 LWN 481.01-E – Modifications reserved by LESER. – LESER can upgrade materials without notice. – Every part can be replaced by other material acc. to customer specification. 07/03
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Compact Performance Safety Relief V
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General Type 437 Orifice diameter d
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Contents Type 459 05/01 Materials
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General Information General Applica
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Valve finder General How to find th
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Valve selection General Valve size
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How to use General Sample Determina
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How to use General 7 Base of capaci
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Sour gas service (H 2 S) General No
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Type Type 437 Type 437 Packed knob
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Type 437 Available designs - materi
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Type 437 Type 437 4 5 6 Options Doc
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Type 437 How to order - Article num
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Type 437 Dimensions and weights - M
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Type 437 Dimensions and weights - U
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Type 437 Order information - Spare
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Type 437 Approvals Type 437 Approva
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Type 437 Capacities - Air Capacitie
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Type 437 Determination of coefficen
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Type Type 438 Packed knob H4 Conven
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Type 438 4 5 6 Options Documentatio
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Type 438 How to order - Article num
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Type 438 Order information - Spare
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Type 438 Approvals Approvals Actual
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Type 438 Determination of coefficen
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Type 439 Packed knob H4 Type 439 Sa
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Type 439 4 5 6 Options Documentatio
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Type 439 Pressure temperature ratin
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Type 439 Available Options Male thr
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Page 73 and 74: Accessories and Options Contents Ch
Page 75 and 76: Accessories and Options Caps and le
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Page 79 and 80: Accessories and Options Sealing sur
Page 81 and 82: Accessories and Options Heating jac
Page 83 and 84: Type Type 459 Plain lever H3 459 Sa
Page 85 and 86: Type 459 Available designs - materi
Page 87 and 88: Type 459 4 5 6 Options Documentatio
Page 89 and 90: Type 459 How to order - Article num
Page 91 and 92: Type 459 Dimensions and weights - M
Page 93 and 94: Type 459 Dimensions and weights - U
Page 95 and 96: Type 459 Pressure temperature ratin
Page 97 and 98: Type 459 Order information - Spare
Page 99 and 100: Type 459 Approvals Europe Approvals
Page 101 and 102: Type 459 Capacities - US Units Capa
Page 103 and 104: Type 459 HDD Safety Relief Valves H
Page 105 and 106: Type 459 HDD Available designs - ma
Page 107 and 108: Type 459 HDD 4 5 6 Options Document
Page 109 and 110: Type 459 HDD How to order - Article
Page 111 and 112: Type 459 HDD Dimensions and weights
Page 115 and 116: Type 459 HDD Order information - Sp
Page 117 and 118: Type 459 HDD Approvals Europe Appro
Page 119 and 120: Type 459 HDD Capacities - US Units
Page 121: Type Type 462 Plain lever H3 462 Sa
Page 125 and 126: Type 462 4 5 6 Options Documentatio
Page 127 and 128: Type 462 How to order - Article num
Page 129 and 130: Type 462 Dimensions and weights - M
Page 131 and 132: Type 462 Dimensions and weights - U
Page 133 and 134: Type 462 Pressure temperature ratin
Page 135 and 136: Type 462 Order information - Spare
Page 137 and 138: Type 462 Approvals Europe Approvals
Page 139 and 140: Type 462 Capacities - US Units Capa
Page 141 and 142: Type 462 HDD Safety Relief Valves H
Page 143 and 144: Type 462 HDD Available designs - ma
Page 145 and 146: Type 462 HDD 4 5 6 Options Document
Page 147 and 148: Type 462 HDD How to order - Article
Page 153 and 154: Type 462 HDD Order information - Sp
Page 155 and 156: Type 462 HDD Approvals Europe Appro
Page 157 and 158: Type 462 HDD Capacities - US Units
Page 159 and 160: Accessories and Options Contents Ch
Page 161 and 162: Accessories and Options Overview Op
Page 163 and 164: Accessories and Options Caps and le
Page 165 and 166: Accessories and Options Available c
Page 167 and 168: Accessories and Options Sealing sur
Page 169 and 170: Accessories and Options Heating jac
Page 171 and 172: Accessories and Options Balanced be
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Accessories and Options O-ring damp
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Accessories and Options Lift restri
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