Swagelok IPT Series Manual

Nvt needle valve

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IPT Series Manual NVT Needle Valve

Service Instructions

NVT Kit Contents

This kit contains the stem assembly shown below.

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

the original stem assembly in the valve as well as the packing sequence found on page 2.

Moly-lithium grease is required for repair, but is not included with the kit.

Stem Assembly

(1) Lubricant Packets

Tools Required

Part

Valve body

Bonnet

Socket head cap screw

Size

—

capable of 75 ft·lb (101 N·m)

5/8 in.

—

Tool

Bench vise

Torque wrench

Crow's foot adapter

T20 Torx

bit

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Page 1 IPT Series Manual NVT Needle Valve Service Instructions NVT Kit Contents This kit contains the stem assembly shown below. NOTE: The image below may vary from the actual stem assembly. Compare the kit contents with the original stem assembly in the valve as well as the packing sequence found on page 2.
Page 2 Exploded View Valve Assembly Socket head cap screw Spring Handle Retaining ring Stem Assembly Bonnet Upper stem Stem assembly * Bold indicates kit component Valve body Packing sequence Lower stem Stem Series Packing Sequence A, B, E and G Stem Series Y Stem Series Component Packing...
Page 3 Instructions • WARNING Valve Reassembly Before removing the valve from service, to avoid personal injury, you must: Apply Moly-Lithium grease liberally to the outside • Depressurize the system. diameter (OD) threads of the upper stem. • Cycle the valve. • Purge system to remove any residual system media left in valve.
Page 4 45 to 50 (61.0 to 67.7) 70 to 75 (94.9 to 102) M, Y 60 to 65 (81.3 to 88.1) For additional information, see www.swagelok.com. Swagelok — TM Swagelok Company Torx — TM Textron Inc. ©2019-2022 Swagelok Company MS-CRD-0226, RevA, January 2022...