Emerson Fisher YD & YS Manuel d'instructions Page 1

www.Fisher.comFisherr YD and YS 3-Way ValvesContentsIntroduction 1...Scope of Manual 1...Speci

Instruction ManualD100425X012YD and YS ValvesOctober 201410Figure 6. PTFE Packing Arrangements for Use in Fisher ENVIRO-SEAL Bellows Seal BonnetsUPPER

Instruction ManualD100425X012YD and YS ValvesOctober 201411Figure 7. Double Graphite Ribbon/Filament Arrangements for Use in Fisher ENVIRO-SEAL Bellow

Instruction ManualD100425X012YD and YS ValvesOctober 201412CAUTIONNever use an old stem with a new valve plug. The use of an old stem requires drillin

Instruction ManualD100425X012YD and YS ValvesOctober 201413CAUTIONNever use an old stem with a new valve plug. The use of an old stem requires drillin

Instruction ManualD100425X012YD and YS ValvesOctober 20141412. Lubricate the valve stud bolts or cap screws (key 15) and install the nuts (key 16) on

Instruction ManualD100425X012YD and YS ValvesOctober 20141513. Mount the bonnet onto the valve with the lubricator or pipe plug parallel with the pipe

Instruction ManualD100425X012YD and YS ValvesOctober 201416Locate the pilot hole in the valve plug and drill the hole through the plug and stem assemb

Instruction ManualD100425X012YD and YS ValvesOctober 201417CAUTIONTo prevent possible product damage, c over the opening in the valve in the following

Instruction ManualD100425X012YD and YS ValvesOctober 20141811. Place a new gasket (key 22) over the stem/bellows assembly. Place the new ENVIRO-SEAL b

Instruction ManualD100425X012YD and YS ValvesOctober 201419can be installed. If the existing valve plug is reused, and the adaptor is in good conditio

Instruction ManualD100425X012YD and YS ValvesOctober 20142Table 1. SpecificationsValve Sizes, Ratings, and End Connections(1,2)Cast Iron ValvesFlanged

Instruction ManualD100425X012YD and YS ValvesOctober 2014201. Remove the two diametrically opposed pipe plugs (key 16).2. Connect a purging fluid to o

Instruction ManualD100425X012YD and YS ValvesOctober 201421Figure 10. Fisher YD Valve (Standard)40A3552-FCOMMON PORTFigure 11. Fisher YD Valve (High T

Instruction ManualD100425X012YD and YS ValvesOctober 201422Figure 12. Fisher NPS 8 YD Valve54B9114-AVIEW DCOMMON PORT

Instruction ManualD100425X012YD and YS ValvesOctober 201423Figure 13. Fisher Standard BonnetAU3910-AE1087PLAIN BONNETFigure 14. Fisher Extension Bonne

Instruction ManualD100425X012YD and YS ValvesOctober 201424Parts OrderingEachvalveisassignedaserialnumberwhichcanbefoundonthevalve.Thissamenumberalsoa

Instruction ManualD100425X012YD and YS ValvesOctober 201425Gasket KitsGasket KitsVALVE SIZE, NPSYD(Includes keys 9, 11, 14, and 22)YS(Includes keys 9,

Instruction ManualD100425X012YD and YS ValvesOctober 201426Figure 16. Typical Fisher HIGH-SEAL Graphite ULFPacking System39B4153-A1. FIND NUMBER 219 N

Instruction ManualD100425X012YD and YS ValvesOctober 201427Keys 2*, 5*, and 6* Valve Plug and Stem Assembly for Plain BonnetVALVE SIZE, NPSSTEM DIAMET

Instruction ManualD100425X012YD and YS ValvesOctober 201428Key 5* Valve Plug StemVALVE SIZE,NPSSTEM SIZE VALVE STEM CONNECTION YD, S31600 (316 SST) YS

Instruction ManualD100425X012YD and YS ValvesOctober 201429Key 9* Bonnet Gasket and Key 22* ShimVALVE SIZE,NPSKEY 9 (YD & YS) KEY 22 (YD & YS)

Instruction ManualD100425X012YD and YS ValvesOctober 20143InstallationWARNINGAlways wear protective gloves, clothing, and eyewear when performing any

Instruction ManualD100425X012YD and YS ValvesOctober 201430Keys 3, 4, 9, 11, 14, and 19 (NPS 8 YD Only)PLUG/ CAGE / STEMKEY 3CAGE RETAINERKEY 4GASKET,

Instruction ManualD100425X012YD and YS ValvesOctober 201431Key Description Part NumberFilamentpackingringforNPS3and4with 12.7 mm (1/2 inch) stem (4 re

Instruction ManualD100425X012YD and YS ValvesOctober 201432Emerson Process ManagementMarshalltown, Iowa 50158 USASorocaba, 18087 BrazilChatham, Kent M

Instruction ManualD100425X012YD and YS ValvesOctober 20144heat treating is to be performed, all trim parts should be removed. Contact your Emerson Pro

Instruction ManualD100425X012YD and YS ValvesOctober 20145D Use bypass valves or completely shut off the process to isolate the valve from process pre

Instruction ManualD100425X012YD and YS ValvesOctober 20146Packing MaintenanceNoteFor valves with ENVIRO-SEAL packing, see the Fisher instruction manua

Instruction ManualD100425X012YD and YS ValvesOctober 201471. Remove the actuator and bonnet according to steps 1 through 4 of the Disassembly procedur

Instruction ManualD100425X012YD and YS ValvesOctober 20148WARNINGSee the WARNING at the beginning of the Maintenance section for more information.2. D

Instruction ManualD100425X012YD and YS ValvesOctober 20149Figure 4. Detail of Fisher PTFE/Composition Packing ArrangementsUPPER WIPER(KEY 12)PACKINGFO