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Type 526Balanced bellows designType 5264019186916Cap H2Lock nutAdjusting screwNeedle bearingSpring plate54 Spring12 Spindle9 Bonnet1417Split ringSpring plate55 Stud56 Nut8 Guide60 Gasket11Bonnet spacer15 Bellows57 Ball66 Screw61 Ball7 Disc73Lock screw6 Adjusting ring1 Body5 Nozzle01/04 LWN 480.01-E
Type 526Balanced bellows designMaterialsItemComponent1 BodyStandard Service Type 5262Trim: StandardCorrosive Service Type 5264Trim: StandardType 5267Trim: Standard1.0619 1.4408 1.7357Type 5263Trim: StandardSA 216 WCB SA 315 CF8M SA 217 WC6 SA 352 LCB5 Nozzle 2) 1.4404 1.4404 1.4404 stellited 1.4404316 L 316L 316L stellited 316L6 Adjusting ring7 Disc8 Guide9BonnetValve size6 R 10, 8T101.4408 1.4408 1.4404 1.4408CF8M CF8M 316L CF8M1.4122 1.4404 stellited 1.4122 1.4122Hardened stainless steel 316L stellited Hardened stainless steel Hardened stainless steel1.4404 1.4404 1.4404 1.4404316 L 316L 316L 316L1.0619 1.4404, 1.4571 1.7357SA 216 WCB SA 479 316L, 316Ti SA 217 WC6 SA 352 LCB1.0305 1.4571 1.0305 1.0305Steel SA 479 316Ti Steel Steel11 Bonnet spacer 1) 1.0460 1.4404 1.4404 1.4404Carbon steel SA 479 316L SA 479 316L 316L12 Spindle14 Split ring15 Bellows16 / 17 Spring plate18Adjusting screwwith bushing19 Lock nut22 Lift stopper40 Cap H254 Spring55 Stud56 Nut57 Ball60 Gasket61 Ball66 Screw69 Needle bearing73 Lock screw1.4021 1.4021 1.4021 1.4021420 420 420 4201.4104 1.4404 1.4104 1.4104Chrome steel 316L Chrome steel Chrome steel1.4571 1.4571 1.4571 1.4571316 Ti 316 Ti 316 Ti 316 Ti1.0718 1.4404 1.0718 1.0718Steel 316L Steel Steel1.4104 1.4404 tenifer 1.4104 1.4104Chrome steel 316L tenifer Chrome steel Chrome steelPTFE with 15% Glas PTFE 15% Glas PTFE 15% Glas PTFE 15% Glas– " – – " – – " – – " –1.0718 1.4404 1.0718 1.0718Steel 316L Steel Steel1.4404 1.4404 1.4404 1.4404316L 316L 316L 316L1.0718 1.4404 1.0718 1.0718Steel 316L Steel Steel1.8159 1.4310 1.8159 1.8159High temp. alloy steel Stainless steel High temp. alloy steel High temp. alloy steel1.4401 1.4401 1.7709 1.4401B8M B8M B16 B8M1.4401 1.4401 1.7258 1.44018M 8M 7M 8M1.4401 1.4401 1.4401 1.4401316 316 316 316Graphite / 1.4401 Graphite / 1.4401 Graphite / 1.4401 Graphite / 1.4401Graphite / 316 Graphite / 316 Graphite / 316 Graphite / 3161.3541 1.4401 1.3541 1.3541Hardened stainless steel 316 Hardened stainless steel Hardened stainless steel1.4401 1.4401 1.4401 1.4401B8M B8M B8M B8M1.4404 1.4404 1.4404 1.4404316L 316 L 316L 316L1.4404 1.4404 1.4404 1.44048M 8M 8M 8MType 5261)Valve size 6 R 10 and 8 T 10 without bonnet spacer2)Stellited sealing surfaces please refer to page 99/06Please notice:Special materials:- Modifications reserved by LESER Body and trim available in various materials (Monel ® , Hastelloy ® ...).- LESER can upgrade materials without notice For nozzle and disc machined from the bar a short lead time is possible.- Every part can be replaced by other material acc. to customer specification.LWN 480.01-E01/05
Page 1 and 2: APIFlanged Safety Relief ValvesSeri
Page 3 and 4: ContentsChapter/PageGeneral 00/01Ap
Page 5 and 6: General InformationGeneralApplicati
Page 7 and 8: Valve finderHow to find the right A
Page 9 and 10: How to useSelection chartsGeneralTh
Page 11 and 12: How to useGeneral8Base of calculati
Page 13 and 14: LEOLGeneralThis table is based on t
Page 15 and 16: TypeType 526Type 526Packed lever H4
Page 17: Type 526Conventional designItemMate
Page 21 and 22: Type 5264 5 6Options Documentation
Page 23 and 24: Type 526Article numbers - OverviewA
Page 25 and 26: d 0 = Actual orifice diameterA 0 =
Page 27 and 28: d 0 = Actual orifice diameterA 0 =
Page 29 and 30: Type 526WeightsUS UnitsBonnetallLif
Page 31 and 32: Type 526Orifice DArticle numbers, d
Page 33 and 34: Type 526Orifice DPressure temperatu
Page 35 and 36: Type 526Orifice EArticle numbers, d
Page 37 and 38: Type 526Orifice EPressure temperatu
Page 39 and 40: Type 526Orifice FArticle numbers, d
Page 41 and 42: Type 526Orifice FPressure temperatu
Page 43 and 44: Type 526Orifice GArticle numbers, d
Page 45 and 46: Type 526Orifice GPressure temperatu
Page 47 and 48: Type 526Orifice HArticle numbers, d
Page 49 and 50: Type 526Orifice HPressure temperatu
Page 51 and 52: Type 526Orifice JArticle numbers, d
Page 53 and 54: Type 526Orifice JPressure temperatu
Page 55 and 56: Type 526Orifice KArticle numbers, d
Page 57 and 58: Type 526Orifice KPressure temperatu
Page 59 and 60: Type 526Orifice LArticle numbers, d
Page 61 and 62: Type 526Orifice LPressure temperatu
Page 63 and 64: Type 526Orifice MArticle numbers, d
Page 65 and 66: Type 526Orifice MPressure temperatu
Page 67 and 68: Type 526Orifice NArticle numbers, d
Page 69 and 70:
Type 526Orifice NPressure temperatu
Page 71 and 72:
Type 526Orifice PArticle numbers, d
Page 73 and 74:
Type 526Orifice PPressure temperatu
Page 75 and 76:
Type 526Orifice QArticle numbers, d
Page 77 and 78:
Type 526Orifice QPressure temperatu
Page 79 and 80:
Type 526Orifice RArticle numbers, d
Page 81 and 82:
Type 526Orifice RPressure temperatu
Page 83 and 84:
Type 526Orifice TArticle numbers, d
Page 85 and 86:
Type 526Orifice TPressure temperatu
Page 87 and 88:
Type 526Flange facingsIndication St
Page 89 and 90:
Orifice900 x 300 1500 x 300 2500 x
Page 91 and 92:
Type 526Spare parts - Disc (Item 7)
Page 93 and 94:
Type 526Spare parts - Stainless ste
Page 95 and 96:
Type 526Spare parts - Gasket Body /
Page 97 and 98:
Type 526Spare parts recommendations
Page 99 and 100:
Type 526ApprovalsApprovalsOrifice D
Page 101 and 102:
Type 526Capacities - SteamCapacitie
Page 103 and 104:
Type 526Capacities - AirCapacities
Page 105 and 106:
Type 526Capacities - WaterCapacitie
Page 107 and 108:
Accessoriesand OptionsContentsChapt
Page 109 and 110:
Accessories and OptionsCaps and lev
Page 111 and 112:
Accessories and OptionsCaps and lev
Page 113 and 114:
Accessories and OptionsMetal seat -
Page 115 and 116:
Accessories and OptionsSoft seal di
Page 117 and 118:
Accessories and OptionsSoft sealSof
Page 119 and 120:
Accessories and OptionsBalanced bel
Page 121 and 122:
Accessories and OptionsLift indicat
Page 123 and 124:
Accessories and OptionsHeating jack
Page 125 and 126:
Accessories and OptionsO-ring dampe
Page 127 and 128:
Fax OrderPlease send your request t
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