Instruction Manual
D100399X012
EW Valve
July 2017
29
Figure 15. PTFE Packing Arrangement for Use in Fisher ENVIRO‐SEAL Bellows Seal Bonnets
PACKING SET
(KEY 6)
UPPER WIPER
(KEY 12)
BUSHING
(KEY 13)
FEMALE
ADAPTOR
PACKING RING
MALE ADAPTOR
SPACER (KEY 8)
SPACER
(KEY 8)
BUSHING
(KEY 13)
BUSHING
(KEY 13)
THRUST
RING
(KEY 39)
12B4183
−
A/IL
9.5 mm
(3/8 INCH)
STEM
12.7 mm
(1/2 INCH)
STEM, NPS 2
VALVES
12.7 mm
(1/2 INCH)
STEM, NPS 3 AND
NPS 4 VALVES
9.5 mm
(3/8 INCH)
STEM
9.5 mm
(3/8 INCH)
STEM
12.7 mm
(1/2 INCH)
STEM
12.7 mm
(1/2 INCH)
STEM
UPPER WIPER
(KEY 12)
BUSHING
(KEY 13)
PACKING RING
MALE ADAPTOR
SPACER (KEY 8)
FEMALE ADAPTOR
SPACER
(KEY 8)
SPRING
(KEY 8)
THRUST
RING
(KEY 39)
THRUST
RING
(KEY 39)
FOR S31603 (316 SST) PACKING
BOX PARTS
FOR ALL PACKING BOX MATERIALS
EXCEPT S31603
SINGLE ARRANGEMENTS
DOUBLE ARRANGEMENTS
18A0906
−
D/IL
A5886-1
18A5338
−
B/IL
12B4185
−
A
−
SHT2/IL
12B4182
−
A
−
SHT2/IL
12B4185
−
A
−
SHT1/IL
12B4182
−
A/IL
A5855/IL
SPACER (KEY 8)
PACKING SET
(KEY 6)