Faults - WIKA CPB3800 Betriebsanleitung

8. Faults

8. Faults
Faults
Equipment does not
provide any output
pressure.
Equipment provides
pressure but pressure
decays to zero
WIKA operating instructions model CPB3800
Causes
No liquid in pressure balance.
Valve B is open.
Component being tested has a
large volume.
Missing or damaged liquid seals
shown by signs of unexplained
liquid leaks.
Valve B handwheel disconnected
from spindle.
Valve B assembly or valve seat
damaged.
If unable to locate a cause.
Incorrect operating procedure
being used.
Missing or damaged liquid seals
shown by signs of unexplained
liquid leaks.
Valve A or Valve B valve assembly
or valve seat damaged.
If unable to locate a cause.
Measures
Check that pressure balance is
filled with liquid. Fill the equipment
with fluid as necessary. See chap-
ter 6.5.1 "Filling the equipment
with liquid".
Close valve B and try again.
Pre-fill component with liquid
before test.
Examine seals on equipment to
ensure they are fitted correctly
and are undamaged. Replace as
necessary.
Examine valve B. Tighten up nut
securing handwheel to spindle as
necessary.
Examine condition of valve B and
valve seat. Replace valve assem-
bly or return pressure balance to
DH-Budenberg/WIKA for overhaul
as necessary.
Return pressure balance to DH-
Budenberg/WIKA for investigation.
Ensure that correct operating
procedure is being followed (see
chapter 6.6).
Examine seals on equipment to
ensure they are fitted correctly
and are undamaged. Replace as
necessary.
Examine condition of valves A and
B and valve seat. Replace valve
assembly or return pressure bal-
ance to DH-Budenberg/WIKA for
overhaul as necessary.
Return pressure balance to DH-
Budenberg/WIKA for investigation.
GB
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