Swagelok KHF Series Technische Daten

Kit Contents

KHF Series Regulators

Maintenance Instructions

Symbols

Lightly lubricate

Discard

Diaphragm

Seat

Seat retainer

Inlet Filter

Poppet spring Poppet

Spring retainer

Lubricant

MS-LT-WL8

Poppet seal and spring

Poppet seal retainer

Tool Size Component

Vise

-Body

Socket

11/16 in. or 17 mm Antitamper nut

Crow’s Foot

3/4 in. or 19 mm Seat retainer spanner

Open-ended wrench

3/4 in. or 19 mm Seat retainer spanner

Torque wrench

Capable of

236 ft·lb (320 N·m, 32.7 m·kg) Cap ring spanner

Swagelok Tools Available

Large cap ring spanner

2 7/8 in. or 73 mm Cap ring

Seat retainer spanner

-Seat retainer

Poppet seal insertion tool

-Poppet seal and spring

Seal extraction tool

_Poppet seal and spring

Filter insertion tool

-Inlet filter

Filter pick tool

-Inlet filter

Tools Required

Note: See Pressure Regulators,

MS-02-230, for tool

ordering information.

Exploded View

Note: Plated steel spring buttons shown.

Assemblies with the 316 SS spring buttons do not include the spring stabilizer.

Stem

Spring button

Spring stabilizer

Range spring

Diaphragm

Stop plate

Cover

Stem nut

Body cap

Seat retainer

Seat

Poppet

Cap ring

Handle

Poppet spring

Inlet lter

Body

Poppet seal retainer

Poppet seal and spring

Spring retainer

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 counterclockwise 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.

Set stop plate aside for later use.

NOTICE

Do not damage the diaphragm sealing surface on

the body. Leakage could result.

Cap ring

Handle Large cap ring spanner

Diaphragm

Stop plate

Body

6. Use the seat retainer spanner to loosen and remove the

seat assembly. Discard the seat retainer and the seat.

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

spring retainer, the poppet spring and the poppet seal

retainer.

8. Thread the seal extraction tool into the body and remove

the poppet seal and spring.

9. Remove the inlet lter from the inlet (marked ‘HP’) of the

body using the lter pick tool. Discard old lter.

NOTICE

Be careful not to scratch the sides of the inlet

port. Leakage could result.

Poppet

Spring retainer

Poppet seal

retainer

Poppet spring

Body

Seal extraction tool

Poppet seal and spring

Seat retainer

Seat

Body

Seat retainer spanner

Cap assembly

Range spring

Inlet

Filter pick tool

Discard

inlet filter.

Reassembly

NOTICE

Ensure all parts and tools are free of debris or

damage.

10. Insert the inlet filter into the inlet (marked ‘HP’) of the body

using the filter insertion tool.

NOTICE

Do not insert the inlet lter with a sharp tool.

Damage to the lter could result.

11. Insert the poppet seal and spring into the body using the

poppet seal insertion tool with the open end of the poppet

seal and spring facing up.

12. Insert the seat with the groove facing up into the seat

retainer.

13. Place the poppet through the seat retainer. Then place the

spring retainer, the poppet spring and the poppet seal

retainer onto the exposed end of the poppet.

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

body.

15. Tighten the seat assembly to 30 ft·lb (40 N·m, 4 m·kg).

NOTICE

Do not damage the diaphragm sealing face on the

body. Leakage could result.

16. Install the diaphragm on the body with the large

convolution facing towards the body.

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

the stop plate facing away from the diaphragm.

Seat

Seat retainer

Groove

Seat assembly

Body

Filter insertion tool

Inlet lter

Inlet

Spring retainer

Poppet spring

Poppet

Poppet seal retainer

Seat retainer

Stop plate

Diaphragm

Boss

Seat retainer spanner

Diaphragm

Body

Large convolution

Body

Poppet seal

and spring Poppet seal

insertion tool

Open end up

Swagelok — TM Swagelok Company

March 2019, RevC

MS-CRD-0137

For additional information, see www.swagelok.com.

18. Reinsert the range spring into the cap assembly.

19. Thread the cap assembly onto the body and tighten the

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

20. Test the regulator for proper operation.

21. 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).

Cap ring

Large cap ring spanner

Cap assembly

Range spring

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