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Type 459 HDD 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 Disc 2 Outlet body 1 Inlet Body Outlet flange 2.4 Conventional design Threaded connection Conventional design Threaded connection Type 459 HDD 11 Bonnet spacer 15 Bellows 60 Gasket Outlet adaptor 2.1 Inlet flange 48 Balanced bellows Threaded connection Conventional design Flange connection 06/02 LWN 481.01-E
Type 459 HDD Available designs – materials Materials Item Component Remarks Type 4594 HDD 1 Base / Inlet body 2 Outlet body Threaded connection Flange connection 2.1 Outlet adaptor Flange connection 2.4 Outlet flange Flange connection 7 Disc Metal seat 8 Guide 9 Bonnet 11 Bonnet spacer 12 Spindle 14 Split ring 15 Bellows 16/17 Spring plate 18 Adjusting screw with bushung 19 Lock nut 40 Cap H2 Balanced bellows design Balanced bellows design Balanced bellows design Balanced bellows design Balanced bellows design 48 Inlet flange Flange connection 54 Spring Standard 57 Pin 60 Gasket 61 Ball 1.4404 stellited SA 479 316L stellited 1.4404 stellited SA 479 316L stellited 1.4404 SA 479 316L 1.4404 316L 1.4404 316L 1.4404 SA 479 316L 1.4404 316L 1.4404 / SA 316L Upper connection of balanced bellows 1.4404 316L 1.4404 316L 1.4404 316L 1.4404 316L 1.4404 316L 1.4404 316L 1.4571 316Ti 1.4404 316L 1.4404 / PTFE 316L / PTFE 1.4404 316L 1.4404 316L 1.4404 316L 1.4310 Stainless steel 1.4310 Stainless steel Graphite / 1.4301 Graphite / 316L 1.4401 316 Type 459 HDD Material Options The Heavy Duty Design of Type 459 HDD offers the possibility to easily obtain special material versions. The fact that all product wetted parts are machined from bar stock materials makes it easier and faster to fulfill almost all material requirements according to the metal availability. Please notice: – Modifications reserved by LESER. – LESER can upgrade materials without notice. – Every part can be replaced by other material acc. to customer specification. LWN 481.01-E 06/03
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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 Available designs - materi
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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 Dimensions and weights - M
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Type 438 Dimensions and weights - U
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Type 438 Order information - Spare
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Page 81 and 82: Accessories and Options Heating jac
Page 83 and 84: Type Type 459 Plain lever H3 459 Sa
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Page 99 and 100: Type 459 Approvals Europe Approvals
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Page 121 and 122: Type Type 462 Plain lever H3 462 Sa
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Type 462 HDD Approvals Europe Appro
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Type 462 HDD Capacities - US Units
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Accessories and Options Contents Ch
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Accessories and Options Overview Op
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Accessories and Options Caps and le
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Accessories and Options Sealing sur
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Accessories and Options Heating jac
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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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