Swagelok LPRS4 Series, User Manual, Page: 7 / 24

7
Maintenance
WARNING
Incorrect or improper repair or servicing of this product can cause serious personal injury and
property damage.
-
All repairs, servicing, and testing of this product must be performed by competent personnel.
- Following any maintenance of the regulator, it is recommended that the product be tested for operation
and leakage.
- The product should be checked periodically for proper and safe operation.
It is the user’s sole
responsibility to determine the frequency of maintenance based on the application.
- To reduce maintenance related system downtime to a minimum, either during commissioning or normal
operation, Swagelok recommends having maintenance kits readily available on site. The need for
maintenance kits is particularly important during the commissioning phase of a system installation due to
residual assembly debris remaining in the system. Such debris can cause a seat leak in the regulator,
resulting in components needing to be replaced.
Required Tools for Maintenance
Smooth-jawed vise
Calibrated torque wrench
up to 37 lbf·ft (50 N·m)
19 mm socket
①
Lubricant (included in kit)
WL-8
④
Krytox 240® AC
⑤
24 mm socket
17 mm socket
②
10 mm open-ended
wrench
②
Liquid leak detector
6 mm hex drive
③
5 mm hex drive
②
①
RS(H) series, self-venting option only
②
LPRS series only
③
RS(H) series only
④
Standard cleaned assemblies
⑤
ASTM G93 or SC11 cleaned assemblies
Table 1