
ET Valve
Instruction Manual
Form 5081
June 2002
14
Figure 8. PTFE Packing Arrangements for Use in
ENVIRO-SEAL Bellows Seal Bonnets
UPPER WIPER
(KEY 12)
PACKING SET: (KEY 6)
FEMALE ADAPTOR
PACKING RING
MALE ADAPTOR
BUSHING (KEY 13)
9.5 mm
(3/8 INCH)
STEM
12.7 mm
(1/2 INCH)
STEM
DOUBLE ARRANGEMENTS
9.5 mm
(3/8 INCH)
STEM
9.5 mm
(3/8 INCH)
STEM
12.7 mm
(1/2 INCH)
STEM FOR
2ĆINCH VALVES
12.7 mm
(1/2 INCH)
STEM FOR
3Ć AND 4ĆINCH
VALVES
THRUST
RING
(KEY 39)
SPRING
(KEY 8)
THRUST
RING
(KEY 39)
THRUST
RING
(KEY 39)
BUSHING
(KEY 13)
BUSHING
(KEY 13)
SPACER
(KEY 8)
SPACER
(KEY 8)
SPACER
(KEY 8)
12.7 mm
(1/2 INCH)
STEM
SINGLE ARRANGEMENTS
FOR S31603 (316 SST)
PACKING BOX PARTS
FOR ALL PACKING BOX
MATERIALS EXCEPT S31603
UPPER WIPER
(KEY 12)
PACKING SET: (KEY 6)
FEMALE ADAPTOR
PACKING RING
MALE ADAPTOR
BUSHING (KEY 13)
SPACER
(KEY 8)
A5863 / IL
12B4183-A
18A0906-D
18A5338-A
12B4182-A SHT
1
12B4185-A SHT 1
12B4182-A SHT 2
12B4185-A SHT 2
10. Place a new gasket (key 10) into the valve body
in place of the bonnet gasket. Install the new
stem/bellows assembly with valve plug/adaptor by
placing it into the valve body on top of the new
bellows gasket.
11. Place a new gasket (key 22) over the
stem/bellows assembly. Place the new
ENVIRO-SEAL bonnet over the stem/bellows
assembly.
12. Properly lubricate the bonnet stud bolts. Install
and tighten the bonnet hex nuts to the proper torque.
13. Install new packing and the metal packing box
parts according to the appropriate arrangement in
figure 8 or 9.
14. Install the packing flange. Properly lubricate the
packing flange stud bolts and the faces of the
packing flange nuts.
For graphite packing, tighten the packing flange
nuts to the maximum recommended torque shown in
table 6. Then, loosen the packing flange nuts, and
retighten them to the recommended minimum torque
shown in table 6.
For other packing types, tighten the packing flange
nuts alternately in small equal increments until one
of the nuts reaches the minimum recommended