Swagelok KLF Series Manuel utilisateur

Kit Contents

KLF Series Regulators

Maintenance Instructions

Symbols

Lightly lubricate

Discard

NOTE: See Pressure Regulators, MS-02-230, for tool ordering information.

Diaphragm

Seat

Poppet

Inlet lter

Poppet spring

Seat retainer

Lubricant

MS-LT-WL8

Poppet damper

Tools Required

Tool Size Component

Vise

-Body

Socket

11/16 in. or 17 mm Stem nut,

Antitamper nut

5/8 in. or 16 mm Seat retainer

Torque wrench

Capable of

236 ft·lb (320 N·m, 32.7 m·kg)

Seat retainer,

Cap ring

Swagelok Tools Available

Large cap ring spanner

2 7/8 in. or 73 mm Cap ring

Filter insertion tool

—Inlet filter

Filter pick tool

—Inlet filter

Exploded View

Stem

Spring button

Spring stabilizer

Range spring

Diaphragm

Stop plate

Seat retainer

Seat

Poppet

Poppet spring

Poppet damper

Inlet lter

Cover

Stem nut

Handle

Body

Cap ring

Body cap

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. Turn the handle counterclockwise until it stops.

Note: If using an antitamper nut, remove it from the body.

Then turn the stem counter clockwise until it stops.

3. Loosen the cap ring.

4. Remove the cap assembly and handle as one piece and set

aside for later use.

Note: The range spring may fall from the cap assembly

when lifted. Set aside for later use.

5. Remove the diaphragm and the stop plate from the body.

NOTICE

Do not damage the diaphragm sealing face on the

body. Leakage could result.

Loosen and remove the seat assembly. Discard seat and

seat retainer.

NOTICE

Be careful not to scratch the inside of the body.

Leakage could result.

7. Invert the body and remove the poppet, the poppet spring

and the poppet damper.

8. Remove the inlet ﬁlter from the inlet port (marked ‘HP’)

using the ﬁlter pick tool. Discard old lter.

NOTICE

Be careful not to scratch the sides of the inlet port.

Leakage could result.

Diaphragm

Stop plate

Body

Seat retainer

Seat

Poppet damper

Poppet

Poppet spring

Cap assembly

Range spring

Body

Cap ring

Handle

Large cap ring spanner

Filter pick tool

Inlet port

Discard

inlet filter.

Swagelok — TM Swagelok Company

October 2015, R3

MS-CRD-0136

13. Tighten the seat assembly to 13 ft·lb (17.5 N·m, 1.8 m·kg).

14. Install the diaphragm on the body with the large

convolution facing towards the body.

15. Install the stop plate onto the diaphragm with the boss on

the stop plate facing away from the diaphragm.

16. Reinsert the range spring into the cap assembly if

necessary.

17 Tighten the cap ring to 236 ft·lb (320 N·m, 32.7 m·kg).

18. Test the regulator for proper operation.

19. If using an antitamper nut, thread the antitamper nut onto

the stem after the set outlet pressure is reached. Tighten

the nut to 13 ft·lb (17.5 N·m, 1.8 m·kg).

For additional information, see www.swagelok.com.

Reassembly

NOTICE

Ensure all parts and tools are free of debris or

damage.

9. Insert the inlet filter into the inlet (marked ‘HP’) using the

filter insertion tool.

NOTICE

Do not insert the inlet ﬁlter with a sharp tool.

Damage to the ﬁlter could result.

10. Insert the seat into the seat retainer with the groove

facing away from the seat retainer.

11. Place the poppet through the seat. Place the poppet

spring and the poppet damper onto the exposed end of

the poppet.

12. Invert the body and thread the seat assembly into the

body.

Note: Lubricate the seat retainer threads only. Do not

contaminate the seat face or body interior with

lubricant.

Cap ring Large cap ring spanner

Poppet damper

Poppet spring

Poppet

Seat

Seat retainer

Groove

Stop plate

Diaphragm

Boss

Cap assembly

Range spring

Seat assembly

Body

Poppet damper

Large convolution

Diaphragm

Body

Filter insertion tool

Inlet lter

Inlet

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