Swagelok IPT Series Mode d'emploi
CRD 0227 Kit Contents
IPT Series Ball-Seal and Soft-Seal Poppet
Check Valve
Service Instructions
➀A gasket is only used in assemblies with an FK end fitting.
Kit Contents
This kit contains the parts shown below.
Cone RingBall-Seal
Poppet
Soft-Seal
Poppet
or
Cover Spring Gasket➀
or
Tools Required
Part Size/Type Tool
Valve body —
Gland nut
See Table 1
Capable of 320 ft·lb (434 N·m)
See Table 1
Poppet —
Poppet
Cover/cone ring and
gland nut threads
Christo-Lube®MCG 111
Moly-Lit™anti-seize
Bench vise
Open-end wrench
(removal only)
Torque wrench
Crow’s foot adapter
Dowel rod
Lubricants/fluids
End Connection End Connection Size (in.) Gland Nut Hex Size (in.)
Female Cone
and Thread
Medium-Pressure
1/4 7/8
3/8 7/8
9/16 1 3/8
3/4 1 3/8
11 3/4
Female Cone
and Thread
High-Pressure
1/4 7/8
3/8 1 1/8
9/16 1 3/8
Female NPT
1/8 5/8
1/4 3/4
3/8 1
1/2 1 3/8
3/4 1 1/2
11 3/4
FK Series
Medium-Pressure
1/4 3/4
3/8 1 3/8
1/2 1 3/8
9/16 1 3/8
3/4 1 7/8
Table 1
Exploded View
*Bold indicates kit component.
Soft-Seal Poppet Check Valve Components
Gland nut Check valve body
Gasket
(FK ends only)
Cone ring
Cover
Poppet
assembly
Spring
Assembly
with NPT end
connections
only
Gland nut Check valve body
Gasket
(FK ends only)
Cone ring
Cover
Poppet
assembly
Spring
Ball-Seal Poppet Check Valve Components
Assembly
with cone and
thread or FK
series end
connections
Assembly
with NPT end
connections
only
Assembly
with cone and
thread or FK
series end
connections
2
Reassembly
1. Insert the spring into the larger hole of the body.
Disassembly
1. Remove the valve from the system, by removing
both of the end connections, with a backup wrench
on the gland nut.
2. Place the valve body in a vise.
3
•WARNING
Before removing the valve from service,
to avoid personal injury, you must:
• Depressurize the system
• Cycle the valve
• Purge the system to remove any residual
system media left in the valve
NOTICE
Do not scratch any sealing surfaces while
following these instructions. Scratches
on sealing surfaces may affect valve
performance.
3. Remove the gland nut using an open-end wrench.
4. Remove and discard the following components:
gasket (if applicable), cover/cone ring, poppet, and
spring.
5. Clean the valve body and gland nut. Ensure that the
threads are not damaged or galled.
#2 Disassembly
2. Lube the O-ring and the poppet assembly lightly
with Christo-Lube®MCG 111 lubricant applied to
the entire largest outer diameter (OD) surface of
the poppet. Assemble into the body on top of the
spring. For a ball seal, make sure the round ball part
is facing upward. For a soft seal, make sure that the
end with the O-ring faces away from the spring.
3. Ensure the poppet moves freely inside the body by
pushing down on the poppet with the dowel rod.
4. For assemblies with cone and thread or FK series
end connections, lube the external angles of the
cover by applying Moly-Lit™anti-seize lubricant
lightly.
For assemblies with NPT end connections, lube the
external angles of the cone ring by applying Moly-Lit
anti-seize lubricant lightly.
Gland nut
Wrench
Gasket
Cover/
Cone ring
Poppet
Spring
Spring
Dowel rod
Poppet
Light Moly-Lit anti-seize
lubricant
Light Moly-Lit
anti-seize lubricant
Light Christo-lube
MCG 111
lubricant
(Shown: ball-seal poppet
for cone and thread or
FK series end connection) Poppet
Spring
For additional information, see swagelok.com.
Swagelok — TM Swagelok Company
Christo-Lube — TM ECLI Products, LLC
Moly-Lit — TM Anti-Seize Technology
©2022 Swagelok Company
January 20222, Rev-
MS-CRD-0227
7. Lube the gland nut threads by applying Moly-Lit
anti-seize lubricant liberally. Assemble it nger-tight
into the body.
End
Connection
End
Connection
Size
(in.)
Gland Nut Torque Values
316➁and Alloy 2507
Required Torque
ft·lb (N·m)
Female Cone
and Thread
Medium-
Pressure
1/4 55 to 60 (74.5 to 81.3)
3/8 55 to 60 (74.5 to 81.3)
9/16 220 to 240 (298 to 325)➀
3/4 220 to 240 (298 to 325)
1 280 to 320 (380 to 434)
Female Cone
and Thread
High-Pressure
1/4 55 to 60 (74.5 to 81.3)
3/8 65 to 70 (88.1 to 94.9)
9/16 220 to 240 (298 to 325)
Female NPT
1/8 35 to 40 (47.5 to 54.2)
1/4 40 to 45 (54.2 to 61.0)
3/8 55 to 60 (74.5 to 81.3)
1/2 220 to 240 (298 to 325)
3/4 220 to 240 (298 to 325)
1 280 to 320 (380 to 434)
FK Series
1/4 40 to 45 (54.2 to 61.0)
3/8 190 to 210 (258 to 285)
1/2 190 to 210 (258 to 285)
9/16 190 to 210 (258 to 285)
3/4 280 to 320 (380 to 434)
Table 2
➀ For information on NACE material, contact your authorized Swagelok
sales and service center.
➁ Torque values do not apply to 316 stainless steel NACE material.
5. For assemblies with FK series end connection only:
Assemble the gasket onto OD of the cover.
6. Assemble the cover or cone ring into the body.
Ensure that the edge of the hole in the cover or
cone ring sits against the poppet ball (for ball-seal
design) or against the O-ring (for soft-seal design). 8. Torque the gland nut according to Table 2.
9. Using the dowel rod, tap the back of the poppet
assembly through the outlet in the body to properly
set the poppet.
10. Wipe off any excess lubricant.
Gasket
Cover
Cover Poppet
Liberal Moly-Lit anti-seize
lubricant
Gland nut
Gland nut
Dowel rod
Outlet
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