Maintenance | Operation Manual C 2214 |
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Fig. 14: Inlet valve of C 2214
*): The articles are included in the maintenance kit (see „Maintenance kits“ on page 32).
Remove the pressure gauge with a suitable open-end spanner and inspect its condition optically. Deposits in
the drilling hole can be removed for example with a dry cotton bud. Do not use water!
ATTENTION!
The opening at the pressure gauge has to be sealed airtight immediately in order to prevent moisture from
causing corrosion.
NOTICE!
The manometer has to be changed after 5 years.
If there are red spots on the nickel-plating of the inlet valve body, it can be used further on. Only if the spots
are located on a sealing surface for the O-rings the component should be exchanged because otherwise
chlorine easily could pass the sealing. In most cases damages of the nickel-plating are resulting from humidity
penetrating the inlet valve if the cylinder is exchanged or stored without using a sealing plug.
9.1.4 Mounting of inlet valve
A PVC-wall holder is quite useful when mounting the inlet valve. Attach the inlet valve to the wall holder using
the union nut and then put it down. Now you have both hands free for carrying out the actual mounting work.
After cleaning and drying, the inlet valve is mounted in reverse order. Wrap a minimum of two layers of PTFE
tape around the thread of the manometer. With the help of a bench vice, the manometer can easily be installed.
All gaskets, springs, balls and filters are exchanged. All O-rings and gaskets are mounted dry. Make sure that
the felt filter is seated properly. To be on the safe side, the screws should be exchanged as stainless steel
embrittles after being used in chlorous atmosphere which is not visible with the naked eye. Insert the screws
with assembly paste or Teflon spray. Tighten them in diagonally opposite sequence until the gap in the housing
of the inlet valve is closed.
9.1.5 Flow meter
For maintenance purposes the housing and if necessary the flow meter are cleaned and the gaskets are
exchanged. To dismount it the lower clamping screw is unscrewed. The O-rings are carefully pulled out of the
drilling hole using an edgeless object. Do not damage the PVC! The O-ring on the setting spindle is carefully
removed in the same way. The thread of the adjustment screw is cleaned from dirt and mounted when dry.
