Swagelok IPT Series Bedienungsanleitung

NV Kit Contents

This kit contains one of the stem assemblies shown below. It is preassembled as shown.

NOTE: The image below may vary from the actual stem assembly. Compare kit contents with the

original stem assembly in the valve.

IPT Series Manual NV Needle Valve

Service Instructions

Single-Piece Stem Assembly

Two-Piece Stem Assembly

(2) Lubricant Packets

Tools Required

Part Size Tool

Valve body —

Handle jam nut 5/8 in.

Bonnet

capable of

150 ft·lb (203 N·m)

See Table 1

Set screw and

socket head

cap screw

5/8 in.

Bench vise

Torque wrench

Crow’s foot adapter

Hex bit

Hex socket

Valve Size

Crow’s Foot Size

in.

NV9M 13/16

NV12M 1 1/8

NV (12F, 12N, 16M, 16N) 1 3/8

Table 1

Tee handle assembly

Bonnet

Stem assembly

(kit component)

Valve body

Exploded View

Valve Assembly

Stem

Assembly

Stem sleeve

Socket head

cap screw

Locking device

Stem jam nuts and

upper bearing washer

Handle jam nut

Set screw

Spring lock washer

*Bold indicates kit component

Packing

sequence

Valve Reassembly

1. Apply the supplied MS-LTK-NNS lubricant liberally

to the rst four outside diameter (OD) threads, the

bottom face of the bonnet, and to the OD threads

of the stem sleeve. Also apply the MS-LTK-NNS

lubricant lightly to the top face of the stem sleeve.

Apply the supplied MS-LTK-WL8-1 lubricant lightly

to the packing sequence area.

•WARNING

Before removing the valve from service,

to avoid personal injury, you must:

• Depressurize the system.

• Cycle the valve.

• Purge system to remove any residual

system media left in valve.

NOTICE

Do not scratch any sealing surfaces while

following these instructions. Scratches

on sealing surfaces may affect valve

performance.

Disassembly

1. Remove the valve from the system.

2. Place the valve in a vise.

3. Loosen and remove the spring lock washers,

handle jam nuts, and set screws.

4. Remove the tee handle assembly.

5. Loosen and remove the locking device and socket

head cap screw.

6. Loosen and remove the bonnet, and remove the

stem assembly.

7. Discard the stem assembly.

8. Clean all remaining components: handle assembly,

bonnet, and valve body.

Instructions

Tee handle assembly

Bonnet

Stem assembly

Valve body

Handle

jam nut

Set screw

Spring lock

washer

Lock nuts and

upper bearing washer

Socket head

cap screw

Locking device

Bonnet

Stem assembly

Stem jam nuts and

upper bearing washer

2. Assemble the bonnet onto the stem sleeve until

bottomed.

NOTICE

To prevent damage to the sealing area during

reassembly, thread the stem to the fully open

position prior to insertion into the valve body.

NOTICE

The stem assembly ships with the stem jam

nuts and upper bearing washer appropriately

tightened. Do not tighten the stem jam nuts

and upper bearing washer any further; the stem

assembly needs to move freely.

Liberal MS-LTK-NNS

lubricant

Liberal MS-LTK-NNS

lubricant Light MS-LTK-WL8-1

lubricant

Bonnet

Stem sleeve

Packing

sequence

Light MS-LTK-NNS

lubricant

5. Apply the supplied MS-LTK-NNS lubricant lightly

to the OD threads of the tee handle set screws and

handle jam nuts.

3. Insert the stem assembly into the valve body.

Torque the bonnet according to the torque chart

below.

Note: The stem series is identied by the valve

ordering number. Example: NVIZN1VD10

For additional information, see www.swagelok.com.

Swagelok — TM Swagelok Company

MS-CRD-0225, Rev-, June 2019

Component

Required Torque

ft·lb (N·m)

Tee handle set screw 8 to 10 (10.8 to 13.5)

Handle jam nut 8 to 10 (10.8 to 13.5)

Required Torque

ft·lb (N·m)

Stem Series Bonnet

A45 to 50 (61.0 to 67.7)

B70 to 75 (94.9 to 101)

C90 to 95 (122 to 129)

D120 to 125 (163 to 169)

E45 to 50 (61.0 to 67.7)

F65 to 70 (88.1 to 94.9)

M60 to 65 (81.3 to 88.1)

T145 to 150 (197 to 203)

W60 to 65 (81.3 to 88.1)

Y60 to 65 (81.3 to 88.1)

6. Place the handle assembly on top of the stem

assembly. Align the ats on the handle assembly

with the ats on the stem assembly.

7. Insert the spring lock washers, handle jam nuts,

and set screws. Tighten the set screws and

handle jam nuts according to the torque chart

below.

Bonnet

Stem assembly

Valve body

4. Reassemble the locking device and socket head

cap screw. Torque the socket head cap screw

according to the torque shown below.

Required Torque

ft·lb (N·m)

Socket Head Cap Screw

All 2.5 to 4.0 (3.3 to 5.4)

Socket head

cap screw

Locking device

Handle

jam nut

Set

screw

Light MS-LTK-NNS

lubricant

Light MS-LTK-NNS

lubricant

Set screw Handle jam nut

Handle jam nut

Set screw

Spring lock washer

Handle jam nut

Set screw

Spring lock washer

Tee handle assembly

Stem assembly

Stem

assembly

series

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