Emerson A31D Manual de instrucciones descargar pdf (Pagina 16)

Instruction Manual

D500248X012

A31D Valve

April 2014

Figure 6. Anti-Blowout Design Details

PACKING

FLANGE

ANTI-BLOWOUT

FLANGE

SHAFT

SHOULDER

SHAFT

HEX NUT

STUD

PACKING

FOLLOWER

HEX NUT

TYPICAL PTFE V-RING

PACKING

HEX NUT

PACKING

FLANGE

SHAFT

SHOULDER

STUD

HEX NUT

ANTI-BLOWOUT

FLANGE

SPRING PACK

ASSEMBLY

PACKING

SET

ANTI-EXTRUSION

RING

PACKING

BOX RING

LUBRICANT

A7090

STANDARD PACKING ARRANGEMENT

CUTAWAY, NPS 14 THROUGH 24

ENVIRO-SEAL ARRANGEMENT (PTFE SHOWN)

NPS 14 THROUGH 24

STANDARD PACKING ARRANGEMENT

CUTAWAY, NPS 3 THROUGH 12

ENVIRO-SEAL ARRANGEMENT (PTFE SHOWN)

NPS 3 THROUGH 12

PACKING

FLANGE

ANTI-

BLOWOUT

FLANGE

ANTI-

BLOWOUT

RING

PACKING

FOLLOWER

TYPICAL

PACKING

VALVE

BODY

C0766

PACKING

FLANGE

SPRING PACK

ASSEMBLY

ANTI-BLOWOUT

RING

TYPICAL

PACKING

STUD AND

HEX NUT

HEX JAM

NUT

ANTI-BLOWOUT

FLANGE

VALVE BODY

B2449

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 35 36

Contents 1
Introduction 1
Description 2
Educational Services 2
Installation 3
Valve Orientation 5
Before Installing the Valve 5
Installing the Valve 7
Maintenance 10
Packing Maintenance 11
Removing the Valve 11
Seal Maintenance 12
PTFE Seals 13
Instruction Manual 14
Installing a One-Piece Shaft 19
Gasket Retainer 22
Parts Ordering 23
Repair Kits 24
Parts L ist 25
ENVIRO-SEAL P acking System 26
(See figure 8) 26

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