While starting with high-quality valves is crucial, it’s also imperative that you understand proper valve maintenance. A properly maintained valve will make all the difference in the way it operates and the rest of your facility runs.
Fortunately, CPV is dedicated to educating customers about maintaining their valves so their CPV products continue to work efficiently at their facilities. We’ve created this valve maintenance guide to give you step-by-step instructions on how to maintain valves and what to use.
Learn more about the installation, operation, and disassembly of O-Seal valves, valve lubrication, valve flush plugs, and valve spacers.
O-Seal Valves Maintenance
- Installation of Fittings or Valve End Connections: When installing fittings or valve end connections, ensure that the mating metal surface is in perfect contact and alignment to prevent extrusion of the O-ring under high pressure. The O-ring should be removed, and a hand tight connection must be made before welding or brazing the tailpiece and threading piece onto the pipe ends.
- Installation: We recommend using a welding spacer during installation. CPV hand-operated valves shouldn’t be subjected to the heat of welding or brazing.
- Operation: Utilize CPV Shut-Off and Needle Valves to give bubble-tight shutoff and be leak-proof at all connections. External thread design permits thread lubrication without contaminating the fluid.
- Disassembly: Remove the bonnet, then remove the seat by holding the bonnet and turning the handle clockwise. It will push the seat from its press fit. Then remove the handle and remove the gland nuts from the bonnet and stem. Push the stem and guide assembly free from the bonnet.
in order to execute proper valve maintenance, use the lubricant that CPV specified is compatible with the system where the valve will be used. Seals and stem threads will be lubricated before the valves are shipped.
A regular lubrication schedule should be created. A regular maintenance schedule will mean that maintenance will take less time and the number of emergencies will be reduced. The piping system will also last longer.
Valve Flush Plugs
Eventually, a section of the piping system will need to be altered, cleaned, or flushed, and you’ll need to use a flush plug to properly perform this. Flush plugs are used to protect the rest of the system from contamination when performing the flush to only one section.
You’ll choose between an Under-Seat, Over-Seat, and Flow-Thru flush plug, then remove the valve cartridge and insert the appropriate flush plug into the O-Seal valve bodies at either end of the affected area.
CPV Manufacturing’s hollow core valve spacers should be used so the heat of welding or brazing during installation doesn’t compromise the cleanliness or integrity of the O-Seal valve. The space replicates the dimensions of the O-Seal valve that’s being installed. Then after the welding or brazing has taken place and the system is flushed, the spacer is slipped out and the valve is slipped in.
Follow these valve maintenance tips to keep your business running and contact CPV Manufacturing to learn more about their products, to purchase products, or to contact someone to learn more about maintaining them.
INSTALLATION OF FITTINGS OR VALVE END CONNECTIONS – It is essential that the mating metal surface be in perfect contact and alignment to prevent extrusion of the O-ring under high pressure. To achieve this, the O-ring should be removed and a hand tight connection made before welding or brazing the tailpiece and threaded piece onto the pipe ends.
A smooth operation depends on well greased valves. Plant managers don’t always remember to schedule the valves in a system for regular lubrication. The movement in a valve may only involve opening and closing, but that doesn’t mean valves don’t require the same lubrication as more complex, multipart components. Whenever two surfaces must slide over one another, as they do in even the simplest valve, lubrication makes parts last longer and function more efficiently.
If one section of a piping system needs to be altered, cleaned or flushed, CPV O-Seal Flush Plugs can be used to protect the rest of a system from contamination. Simply remove the valve cartridge and insert the appropriate Flush Plugs into the OSeal valve bodies at either end of the affected area and the rest of the system will be totally cut off from the cleaning or flushing process.
CPV Valve Spacers - an inexpensive way to assure Trouble-free installations of new CPV O-Seal Valves. CPV O-Seal valves provide years of reliable service. However, the heat of welding or brazing during installation can compromise the cleanliness and/or integrity of the O-Seal valve. Using CPV's hollow core valve spacers enables users to avoid that risk.