MOV Long Life
Nuclear Approved Motor Operated Valve Grease
MOV Long Life uses a state of the art thickener, combined with a hydrotreated Group II base oil to give outstanding
performance. It was specifically formulated to offer solutions to the past problems associated with the lubrication of
manual and motorized operators, and to provide a much longer service life. 
This grease is a perfect solution for the
recent cancellation of the Nebula EP grease by Exxon used in valve operators, particularly in power stations. MOV
Long Life is compatible with the calcium complex thickener in Nebula EP and may be used without stripping down
the operators or rigorously cleaning the valve stems of the old grease.
MOV Long Life grease is the only grease approved by Limitorque, for safety related Motor Operated Valves.
Frequently Asked Questions (FAQ)
Approvals
Limitorque
MOV Long Life greases are approved by Limitorque to be intermixed with Exxon Nebula EP greases in main actuator gear boxes.
Limitorque Technical Update #04-01
MOV Long Life greases are approved by Limitorque as a direct replacement to Exxon Nebula EP greases in SMB, SB, SBD and HBC actuators for nuclear applications.
Limitorque Technical Update #02-01
Limitorque also approves MOV Long Life greases for use in their older acuators including the W, B, VG, VGC and B320 series.
Limitorque MOV Long Life Approval
MUG - Motor Operated Valve Users' Group
MUG has approved MOV Long Life for use in Limitorque MOV's. Summary of S-CFI 02G-J01
COG - Candu Owners Group
COG has qualified MOV Long Life as a direct replacement for Exxon Nebula EP greases in CANSU reactors. Summary of COG-JP-01-009
MOV Long Life qualified for stems. COG Stem Approval
EPRI - Electric Power Research Institute
EPRI has heat and radiation tested MOV Long Life grease for Limitorque gear boxes, limit switches and stems. Summary of EPRI Report
MOV Long Life passes EPRI testing for Limitorque actuators. Summary of EPRI Report #1003483
MOV Long Life is an "acceptable replacement for M28 for the MOV limit switch gearbox" Summary of EPRI NMAC December 2005 Lube Notes
