Swagelok KSV Series Caractéristiques techniques

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

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.

Diaphragm

Stop plate

Body

Cap assembly

Range spring

Stem

Seat retainer

Seat

Body

Cap ring

Poppet spring

Poppet

Swagelok — TM 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.

Diaphragm

Body

Large convolution

Seat

Seat retainer

Groove

Poppet spring

Poppet

Seat

Seat assembly

Body

Diaphragm

Stop plate

Boss

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