Compac Breakaway Seal Replacement
Compac Breakaway Seal Replacement
This section describes how to replace the seal in a QBCI model breakaway.
The Compac Breakaway QBCI is only used on 15 kg/min models or on
models where the vent is returned to the loading post.
The excess flow end (female) and check valve end (male) should not
require servicing. Both have metal to metal seats that are not affected by
dirt.
Before you start, make sure you have:
Obtain the following replacement parts and ancillary equipment:
A seal kit - Part number FC-SK-0011
3 x O-rings
2 x probe O-rings
O-ring lubricant
In the event of a breakaway, check the O-rings in the male end of the
breakaway for damage.
If they are damaged, replace the breakaway QBCI seals by following the
steps below.
Replace the Breakaway QBCI-09 Seals
To replace the breakaway seals:
1. Remove the old O-rings.
If you are dismantling the quick breakaway valve, make
sure that you have a spare seal kit available. O-rings that are subjected
to natural gas at high pressure swell when exposed to air and must be
replaced.
2. Replace the old O-rings with the new lubricated O-rings.
Always use O-ring lubricant to prevent the O-rings from
being damaged.
If the breakaway parts under gas pressure for no apparent reason
check that the pressure relief hole is clear. If the pressure relief hole is
blocked, gas pressure will force the male and female ends apart.
To reconnect the breakaway:
1. Make sure that both male and female receptacle breakaway parts are
clean before reassembly.
2. Check that the pressure relief hole is clear.
If the pressure relief hole is not clear, gas pressure will
force the male and female ends to part.
3. Firmly connect the female and male connectors.
If the breakaway is not connected correctly when gas
pressure is applied, it will come apart completely.
To Next Page
Loading...
Need help?
General
