Maintenance; Maintenance Schedule - GF DIASTAR Six Manuel D'utilisation

Maintenance

8 Maintenance
WARNING
Diaphragm valve used as end valve!
Medium can exit uncontrollably, if piping system is opened under pressure.
Death or serious injury could occur due to contact with the medium.
 The end valve may only be opened when the medium can be caught or
carried off safely and splashing is prevented by taking appropriate
measures.
If you have questions regarding the maintenance of your product, please contact
your national GF Piping Systems representative.
8.1

Maintenance schedule

Maintenance interval
regular
1-2 times per year
100,000 cycles with
- less than 10 bar
nominal pressure at
20 °C and water
- DIASTAR Ten/ Ten
Plus
50,000 cycles with
- bar or higher nominal
pressure at 20°C and
water
DIASTAR Sixteen
-
If the flow medium has higher temperatures, other chemicals or abrasive
particles, we recommend more frequent inspections.
Maintenance activity
 Check connection between the bonnet and valve
body for tightness.
 Check the functionality of diaphragm valves which
are kept permanently opened or closed
 Visual inspection of the actuator.
 Disassemble the actuator and check the diaphragm
for damage.
 If necessary, change diaphragm.
 Visual inspection of the actuator.
 Disassemble the actuator and check the diaphragm
for damage.
 If necessary, change diaphragm.
Instruction Manual
53