Swagelok VB04 Series Technical specifications

Stem
Disc spring
Lock washer Seal retainer Stem seal
Ball
Carefully read entire instruction before servicing the valve.
Kit Contents (contents may vary by kit)
VB04 Series Process Interface Valve
Maintenance Instructions
Seat Body seal
Flange ×Thread Flange ×Flange Thead ×Thread
Slip ring
Anti-rotation pin
Nut Handle
(type may vary)
Handle sleeve Snap ring
(Probe only)
Symbols
Discard

Tool Size Component
Vise
—Valve body
Open-ended wrench/socket End connection - determined by assembly
ordered
End connection, lock nuts
Torque wrench
Capable of 1060 in·lb (119 N·m) End connection, lock nuts
Plastic pick
—Disc spring, seat, stem seal, seal retainer
Lubricants/fluids
P-80®(or equivalent)
Molykote®1000
Permanent thread locking fluid
Molykote 111
Seat and handle
End piece/end fitting
Stem threads
Stem, stem bore, OD surface, ID surface, disc spring
Stem seal assembly tools
Stem seal and stem
Pliers or grips
—Anti-rotation pin
Punch, hammer, permanent
marker, string —If applicable
Slip joint pliers
—Lock washer
Hex for end cap, hex key for
end fittings, crow’s foot for probe,
hex for check valve
—If applicable
Tools Required
Bore Kit Number
9.5 mm
K‐VB95‐STMSL‐TOOL‐KIT
K‐VB95‐ID‐GUIDE‐TOOL
K‐VB95‐OD‐GUIDE‐TOOL
K‐VB95‐PUSHER‐TOOL
14 mm
K‐VB14‐STMSL‐TOOL‐KIT
K‐VB14‐ID‐GUIDE‐TOOL
K‐VB14‐OD‐GUIDE‐TOOL
K‐VB14‐PUSHER‐TOOL
20 mm
K‐VB20‐STMSL‐TOOL‐KIT
K‐VB20‐ID‐GUIDE‐TOOL
K‐VB20‐OD‐GUIDE‐TOOL
K‐VB20‐PUSHER‐TOOL
Bore Size Nut
9.5 mm 13 mm hex
14 mm 17 mm hex
20 mm 19 mm hex
2

Exploded View
Available End Pieces
End tting
Check valve
End cap
Available Kits:
Handle Kit:handle sleeve, nut, lock
washer, and handle
Seat Kit: anti-rotation pin, ball,
body seal, seats, and snap ring
(probe only)
Stem Kit: anti-rotation pin, ball,
body seal, disc spring, lock washer,
seats, seal retainer, slip ring, snap
ring (probe only), stem, and stem
seal
*Bold indicates kit component.
Lock washer
Nut
Handle
Nut
Disc spring
Seal retainer
Stem seal
Handle sleeve
Cam (locking
version only)
Anti-rotation pin
End piece
Body seal
Body
End piece
Ball
Seat Seat
Body seal
Stem
Slip ring
Probe
Snap ring
(probe only)
Flange end Non-ange end
3

Critical Sealing Surfaces
The surfaces highlighted in red are the critical sealing surfaces. These surfaces must be free of scratches, dents, disfigurement,
and debris to ensure successful maintenance and leak free performance.
Body
Stem
Stem seal
End tting
End cap
Check valve
Probe
4
Sealing surface
Sealing surface

•WARNING
Before removing valve from system, to avoid
personal injury, you must
• Depressurize the valve
• Cycle the valve
• Purge the valve to remove any residual system
media left in the valve
Disassembly
1. Clamp the valve body in a vise.
NOTICE
Be careful not to scratch the critical sealing surfaces.
Leakage could result.
2. Carefully bend the lock washer tabs away from the top
nut using a punch and hammer.
NOTICE
Excessive force may damage the valve.
Leakage could result.
3. Close the valve against the handle stop. Document on the
body the handle orientation relative to the body, using a
marker, for proper reassembly.
4. Remove the top nut while holding the valve in a closed
position.
5. Remove the lock washer and handle.
6. Remove the cam (locking cam version). Note the location
and orientation of each cam for proper reassembly.
Nut
7. Remove the bottom nut. Do not remove the stop pins.
8. Carefully remove the disc spring and seal retainer with a
plastic pic.
NOTICE
Be careful not to scratch the critical sealing surfaces.
Leakage could result.
9. If disassembling a non-ange side end piece, remove the
anti-rotation pin next to the end piece using pliers.
10. If disassembling a probe end piece, remove the snap ring.
11. Remove the end piece, seat, ball, and second seat with a
plastic pic.
NOTICE
Be careful not to scratch the critical sealing surfaces.
Leakage could result.
12. Push the stem down through the stem bore and remove
through the body bore.
13. Remove the stem seal from the stem bore with a plastic
pic.
14. Remove the slip ring from the stem.
NOTICE
Be careful not to scratch the critical sealing surfaces.
Leakage could result.
Anti-rotation pin
End piece
Seat
Ball
End piece
5
Lock washer tabs
Nut
Handle
Lock washer
Stop pins
Lock washer tabs
Handle
Flange end
Cam

15. Remove the body seal from the end piece.
NOTICE
Be careful not to scratch the critical sealing surfaces.
Leakage could result.
Reassembly
1. Clean the valve, components, and all the critical sealing
surfaces.
NOTICE
Do not use abrasive cleaners on critical sealing
surfaces. Leakage could result.
2. Secure the valve body vertically in a vise.
3. Apply a light coat of P-80 to the back of the seat and place
concave face up in the body.
NOTICE
Be careful not to scratch the critical sealing surfaces.
Leakage could result.
4. Place the slip ring onto the stem.
5. Apply a light coat of Molykote 111 on the lower stem neck
above slip ring.
6. Assemble the stem into the stem bore through the body
bore.
NOTICE
Be careful not to scratch
the critical sealing surfaces.
Leakage could result.
7. Thread the string through the bore of ball.
8. Orient the ball slot with the stem tab.
9. Lower the ball into the body using the string and engage the
ball slot with the stem.
NOTICE
Ensure the ball does not fall into the body or the ball
could be scratched. Leakage could result.
10. Remove the string.
11. Apply a light coat of P-80 on the back of the second seat and
assemble the seat into the end piece, concave face up.
12. Apply a heavy coat of Molykote 1000 to the threads of the
end piece.
13. Assemble the body seal onto the end piece.
14. Apply a light coat of Molykote 111 to the OD surface
adjacent to the body seal.
15. Assemble the end piece into the valve body and finger-
tighten.
16. Secure the valve body horizontally in a vise.
NOTICE
Be careful not to scratch the critical sealing surfaces.
Leakage could result.
17. Torque the end piece per the following table:
NOTICE
Ensure the seat remains in place before torquing and
the valve remains in open or closed position. Leakage
could result.
Seat
Flange side end piece Non-ange side end piece
Body seal Body seal
Stem bore
Bore Size Torque, in.∙lbs (N∙m)
9.5 mm 430 to 530 (48.5 to 59.8)
14 mm 650 to 790 (73.4 to 89.2)
20 mm 860 to 1060 (97.2 to 119)
Lubricant
End piece
Body
seal
Flange side end piece Non-ange side end piece
Body
seal
Body
Slip ring
Stem
Threads
Stem tab
Stem
Concave up
Ball
6
Lubricant Lubricant
Seat
Concave up
End piece

7
18. If assembling a probe end piece, assemble the snap ring.
19. If assembling a non-flange end, assemble the
anti-rotation pin into body.
20. Apply a heavy coat of Molykote 111 to the stem bore.
21. Assemble the stem seals using the stem seal assembly
tools.
a. Thread the ID guide onto the stem and finger-tighten.
b. Insert the OD guide over the ID guide into the stem
pocket.
c. Apply a light coat of Molykote 111 to the OD and ID of
the stem seal.
d. Assemble the stem seal onto the ID guide spring side
(metal side) down.
e. While pressing the OD guide down, press the stem seal
completely into place with the pusher.
f. Remove the stem insertion tools.
22.Assemble the seal retainer into the stem, shoulder facing
down.
23. Apply a light coat of Molykote 111 to both sides of the disc
spring.
24. Assemble the disc spring onto the stem, concave side
down.
25. Orient the stem to a closed position using the unassembled
handle. Remove the unassembled handle.
26. Apply a light coat of permanent thread-locking fluid to the
stem threads (20 mm bore only).
27. Assemble the bottom nut onto the stem and torque per the
following table:
28. Assemble the proper cam (from Disassembly step #6) over
the stem (locking cam version only).
29. Assemble the handle sleeve on the handle. Apply P-80 if
difficult to assemble.
30. Place the handle on the stem and orient with the mark from
Disassembly step #3.
Seal retainer
Bore Size Torque,in.∙lbs (N∙m)
9.5 mm 5 to 6 (0.56 to 0.67)
14 mm 5 to 6 (0.56 to 0.67)
20 mm 20 to 30 (2.2 to 3.4)
Anti-rotation pin Stem
Disc springs
Stem
Nut
Stem
Handle
Stem
*Pusher
Stem seal
*ID guide
Stem
*OD guide
*Stem seal insertion tools
Concave down

31. Assemble the lock washer onto the stem.
NOTICE
Ensure the valve is in the closed position.
Unexpected flow could result.
32. Apply a light coat of permanent thread-locking fluid on the
stem threads.
33. Assemble the top nut onto the stem and torque per the
following table:
NOTICE
Ensure the stem does not rotate until the top lock nut
has been secured by the lock tab washer. Leakage
could result.
34. Pinch the lock washer tabs against the flats of the top nut
using slip joint pliers.
33. Open and close the valve several times to inspect for
smooth actuation.
34. Test each valve for proper operation and leak-tight integrity.
NOTICE
Allow thread locking fluid to cure for 24 hours before
installing the valve. Failure to do so could result in
leakage.
For additional information, see www.swagelok.com.
Swagelok — TM Swagelok Company
Molykote — TM Dow Corning Corporation
Molykote is a registered trademark of Dow Corning Corporation,
a wholly owned subsidiary of the Dow Chemical Company.
P-80 —TM International Products Corp.
© 2019 Swagelok Company
MS-CRD-0241, Rev-, August 2019
Lock washer
Lock washer
Nut
Stem
Bore Size Torque,in.∙lbs (N∙m)
9.5 mm 70 to 90 (7.9 to 10.1)
14 mm 90 to 110 (10.1 to 12.4)
20 mm 110 to 130 (12.4 to 14.6)
Nut