Swagelok KSV Series Technical specifications

Tool Size Component
Vise
-Body
Socket
5/8 in. or 16 mm Seat retainer
11/16 in. or 17 mm Antitamper nut
Open end wrench
9/32 in. or 7 mm Stem
2 in. or 50 mm Cap ring
Crow’s foot
2 in. or 50 mm Cap ring
Torque wrench
Capable of
117 ft·lb (160 N·m, 16.4 m·kg)
Seat retainer,
Cap ring
Kit Contents
KSV Series Regulators
Maintenance Instructions
Tools Required
Symbols
Lightly lubricate
Discard
Lubricant
MS-LT-WL8
Seat retainerPoppetPoppet springSeat
Diaphragm
Kits for pressure control ranges higher
than 0 to 100 psig (0 to 6.8 bar) contain
two diaphragms.

Exploded View
2
Note: Regulators with pressure control ranges higher than 0 to 100 psig (0 to 6.8 bar) contain two diaphragms.
Stem
Spring button
Spring stabilizer
Range spring
Seat retainer
Seat
Poppet spring
Poppet
Antitamper nut
Cap ring
Body
Body cap
Diaphragm
Stop plate
Seat Assembly

WARNING
Before removing a regulator from the system for
service, you must
• depressurize system
• purge the system to remove any residual
system media left in the regulator.
Disassembly
1. Place the regulator in a vise.
2. Loosen and remove the antitamper nut.
3. Turn the stem counter clockwise until it stops.
4. Loosen the cap ring.
5. Remove the cap assembly from the body.
Note: The range spring may fall from the cap assembly.
Set aside for later use.
6. Remove the diaphragm and the stop plate. Set aside the
stop plate for later use.
NOTICE
Do not damage the diaphragm sealing face on the
body. Leakage could result.
7. Loosen and remove the assembly. Discard the seat and
seat retainer.
NOTICE
Be careful not to scratch the inside of the body.
Leakage could result.
8. Invert the body, and remove the poppet and the poppet
spring.
3
Diaphragm
Stop plate
Body
Cap assembly
Range spring
Stem
Seat retainer
Seat
Body
Cap ring
Poppet spring
Poppet

Swagelok — TM Swagelok Company
© 2010, 2015 Swagelok Company
October 2015, R1
MS-CRD-0144
For additional information, see www.swagelok.com.
14. Install the stop plate onto the diaphragm with the boss
on the stop plate facing up, away from the diaphragm.
15. Reinsert the range spring into the cap assembly.
16. Thread the cap assembly onto the body and tighten the
cap ring to 117 ft·lb (160 N·m, 16.2 m·kg).
17. Test the regulator for proper operation.
18. After the set outlet pressure is reached, thread the
antitamper nut onto the stem. Tighten to 13.0 ft·lb
(17.5N·m, 1.8 m·kg).
Cap assembly
Range spring
Cap ring
Reassembly
NOTICE
Ensure all parts and tools are free of debris or
damage.
9. Insert the seat into the seat retainer with the groove away
from the seat retainer.
10. Place the poppet through the seat. Then place the poppet
spring onto the exposed end of the poppet.
11. Invert the body and thread the seat assembly into the
body.
12. Tighten the seat assembly to 13 lb·ft (17.5 N·m, 1.8 m·kg).
13. Install the diaphragm on the body with the large
convolution facing down, towards the body.
4
Diaphragm
Body
Large convolution
Seat
Seat retainer
Groove
Poppet spring
Poppet
Seat
Seat assembly
Body
Diaphragm
Stop plate
Boss