DeZurik APCO CVS-6000 Handbuch für Installation, Betrieb und Wartung - Seite 5
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Fusion/Powder Coated Valves
Valves with fusion/powder coated exterior paint require flat washers to be
installed under the flange nuts when installing the valve to the pipeline
flange to prevent the paint from cracking or chipping.
Maintenance
CVS-6000 and CVS-6100 Valves
A periodic (approximately 6 months) lubrication of the cylinder lever pin and eye bracket pin to keep the
valve in good operating condition. For the CVS-6000 Air Cushion Cylinder, a few drops of oil should be
applied to the top and bottom ports of the cylinder by removing the breather caps. Recommended
lubricants: SAE 10W/20, WD 40.
Series CVS-6000B Valves
A periodic (approximately 6 months) lubrication of the exposed area of buffer rod is required to keep the
valve in good operating condition.
Through the course of normal operation, the Hydro-pneumatic Accumulator (73) must be checked for
loss of pressure. It is normal for the Gage (58) to indicate a decrease in pressure when the valve
opens due to the transfer of oil from the accumulator to the cylinder.
Special care should be taken to the exposed area of the buffer rod if repainting the valve is required. It
should be fully masked to prevent even a small amount of paint to get on the buffer rod, which could
damage the cylinder rod seal and cause the cylinder to leak.
December 2012
APCO CVS-6000 Swing Check Valves
Figure 1 – Lubrication of Cylinder
Page 5
DeZURIK
D12006