KSB BOA-SuperCompact - 8 Servicing;Maintenance; Safety Regulations; Maintenance

8 Servicing/Maintenance
44 of 60
8 Servicing/Maintenance
8.1 Safety regulations
WARNING
Fluids, consumables and supplies which are hot and/or pose a health hazard
Risk of injury!
▷ Observe all relevant laws.
▷ When draining the fluid take appropriate measures to protect persons and the
environment.
▷ Decontaminate valves used for handling fluids posing a health hazard.
Before removing the valve from the piping, ensure that the pipe has been shut off
and released for repair/maintenance work.
A regular maintenance schedule will help avoid expensive repairs and contribute to
trouble-free, reliable operation of the valve with a minimum of servicing/
maintenance expenditure and work.
NOTE
All maintenance, service and installation work can be carried out by KSB Service or
authorised workshops. For contact details please refer to the enclosed "Addresses"
booklet or visit "www.ksb.com/contact" on the Internet.
Never use force when dismantling and reassembling the valve.
8.2 Maintenance
The valve has been designed to be largely maintenance-free. The materials of the
sliding parts have been selected for minimum wear.
All elastomers are organic substances and as such subject to natural ageing.
Continuous operation at high operating temperatures may reduce their service lives.
NOTE
The operator/user is responsible for fixing appropriate inspection and servicing
intervals as required by the service conditions of the valve.
The service life can be extended by taking the following measures:
▪ Checking the function by opening and closing the valve at least once or twice a
year
▪ Lubricating the moving parts such as stem 200, stuffing box screws and stem nut
925 using standardised lubricants to DIN51825
▪ Re-tightening or replacing the bonnet/cover sealing element 411/412 in good
time. (ðSection8.2.1,Page44)
8.2.1 (Re-)tightening the bonnet/cover bolting
It is possible and permitted to replace the bonnets or bonnet gaskets of BOA-H
valves, and to clean the screen and replace the cover gaskets of BOA-S strainers.
After maintenance work or repair work has been completed, all bolting in the
bonnet/cover area must be re-tightened so as to restore full functionality of the
valve. (ðSection8.2.4.1,Page45) .