Swagelok KCB Series Specifiche tecniche

Kit Contents

KCB Series Regulators

Maintenance Instructions

Symbols

Tools Required

Lubricant

MS-LT-WL8

Piston sealSeat Retainer sealSeat retainer

Lightly lubricate

Discard

Tool Size Component

Vise

-Body

Socket

5/8 in. or 16 mm Seat retainer

11/16 in. or 17 mm Antitamper nut

Crow’s foot

1 1/4 in. or 32 mm Body cap

Open-ended wrench

1 1/4 in. or 32 mm Body cap

Torque wrench

Capable of

25 ft·lb (34 N·m, 3.5 m·kg)

Seat retainer,

Body cap

Exploded View

Seat Assembly

Handle

Seat retainer

Seat

Retainer seal

Stem

Range spring

Piston

Body cap

Stem nut

Spring stabilizer

Spring button

Piston seal

Body

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 body cap.

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. Turn the body upside down. Remove the piston assembly

by tapping the body gently on a soft surface.

6. Remove and discard the piston seal from the piston.

7. Loosen and remove the seat assembly. Discard the seat,

seat retainer and retainer seal.

NOTICE

Be careful not to scratch the inside of the body.

Leakage could result.

Cap assembly

Range spring

Handle

Body cap

Piston assembly

Body

Piston seal

Piston

Body

Retainer seal

Seat retainer

Seat

Swagelok — TM Swagelok Company

October 2015, R1

MS-CRD-0134

For additional information, see www.swagelok.com.

Reassembly

NOTICE

Ensure all parts and tools are free of debris or

damage.

8. Insert the retainer seal into the seat retainer with the

groove facing away. Insert the seat into the seat retainer.

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

body.

10. Tighten the seat assembly to 11.2 ft·lb (15.2 N·m,

1.6m·kg).

11. Place the piston seal onto the piston.

12. Place the piston assembly into the body until it seats

against the seat retainer.

NOTICE

Do not damage the piston seal. Leakage could

result.

13. Reinsert the range spring into the cap assembly with the

painted spring end visible if necessary.

14. Thread the cap assembly into the body and tighten the

body cap to 25 ft·lb (34 N·m, 3.5 m·kg).

15. Test the regulator for proper operation.

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

the stem after the set outlet pressure is reached. Tighten

the nut to 13.0 ft·lb (17.5 N·m, 1.8 m·kg).

Body cap

Seat

Seat retainer

Retainer seal

Groove

Seat assembly

Body

Piston assembly

Body

Range spring

Cap assembly

Piston seal

Piston

Threads only

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