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IMPORTANT: Check your air supply before installing this valve. Air-Actuated valves require
clean, filtered air to operate properly.
Commonly used air compressors can pickup moisture/humidity in the air, dirt, and oil used in the
compressor itself, and pass them along throughout your system, if not filtered properly. While some
newer air compressors are oil-free, many commonly used are not. In the past few years, compressor
manufacturers have switched from standard petroleum based lubricating oils to SYNTHETIC OILS, as
they are thought to make the compressor run more efficiently, and can be changed less often.
However, SYNTHETIC OILS, which can get into the air supply, can cause damage to valve bodies
and solenoids, as well as other processing equipment, by affecting the elastomers and/or plastics that
come in contact with the air supply.
Special "coalescing" filter regulators and solenoid guards are commercially available to help avert this
potential problem, and remove oils and other damaging elements from the air downstream from the air
compressor. One source that we are aware of is Wilkerson Corp. of Englewood, Colorado (telephone
303-761-7601). These filters and other components can be installed downline from the compressor,
as well as on control panels, to help minimize the problem, by further cleaning the air before it gets to
your valves and system components. Filter elements should be changed at least once a year, as part
of your normal plant maintenance program.
IMPORTANT: Use only C-137 Thread Lubricant and OCP-VI Seal Lubricant on Tri-Clover®
actuators.
These lubricants have been formulated especially to ensure trouble free assembly of Tri-Clover®
actuators. C137 is a non-USDA rated lubricant that helps to prevent thread galling. OCP-VI is USDA
H2 rated and is an excellent lubricant for the piston.
How to Use
Before reassembly of any Tri-Clover®actuator, i.e. 761, 361, 161, etc., apply a thin bead of C137
lubricant on the lower threads of the cylinder. Lightly coat the O.D. of the piston packing and felt ring
with OCP-VI. On actuators with valve positioners, place a light bead of C137 on the lower threads of
the positioner housing.
THE C137 LUBRICANT IS NOT INTENDED FOR USE ON ACTUATOR PISTON SEALS, STEM
THREADS, OR ANY OTHER UNSPECIFIED USE.
Tri-Clover now offers OCP-VI in 1/4and 8 ounce tubes and C137 in 1 ounce tubes. For further
information refer to your Tri-Clover®Actuator Service Bulletin, or contact your Tri-Clover distributor.
MAINTENANCE
VALVE DISASSEMBLY
