Swagelok KBP Series Technical specifications

KBP Series Regulators
Maintenance Instructions
Kit Contents
Seat retainer
Seat Retainer seal
0 to 250 psig (0 to 17.2 bar) and
0 to 500 psig (0 to 34.4 bar) kits
contain 2 diaphragms.
All other kits contain 1.
Diaphragm Lubricant (with MSDS)
Tools Required
Tool Size Component
Socket
5/8 in. Seat Retainer
Crow’s foot
2 in. Cap ring
Torque wrench capable of
13.0 ft·lb (17.5 N·m, 1.8 m·kg) Seat retainer
capable of
129 ft·lb (175 N·m, 17.9 m·kg) Cap ring
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. Turn handle counterclockwise until it stops.
2. Loosen cap ring.
3. Remove cap assembly and handle as one piece and
set aside for later use.
Note: In 0 to 500 psig regulators, the range spring and
spring button may fall from the cap assembly when
lifted. Set aside for later use.
Cap assembly / handle
0 to 500 psig
regulators
Range spring
Spring button
Handle
Cap ring

4. Remove stop plate and diaphragm(s).
5. Use socket wrench to remove seat retainer
assembly.
Reassembly
Note: Ensure all parts are free of debris or damage.
6. Fit the seat and retainer seal into the seat retainer
until ush. Lightly lubricate the threads only. Avoid
contaminating the retainer seal.
7. Thread seat retainer assembly into body and tighten
to 13.0 ft·lb (17.5 N·m, 1.8 m·kg).
8. Install diaphragm(s) into body with the large
convolution down. For assemblies with two
diaphragms, both should have the same orientation.
9. Install stop plate onto diaphragm.
10. For 0 to 500 psig regulators, reinstall the spring
button and range spring into the cap assembly.
11. Place cap assembly on body and thread cap ring
onto body. Tighten cap ring to 129 ft·lb (175 N·m,
17.9 m·kg).
12. Test and set the regulator for proper operation.
Swagelok — TM Swagelok Company
© 2008, 2014, 2015 Swagelok Company
October 2015, R2
MS-CRD-0108
Diaphragm
Body
Range spring
Spring button
Cap assembly
Retainer seal
Seat retainer
Seat
Lubricate lightly
Groove
facing down
Boss Stop plate
Diaphragm
Large convolution
Diaphragm Stop plate
Discard
For additional information on regulator operation, see
www.swagelok.com.
Seat
retainer
assembly
Discard