Swagelok TBVS4, Руководство пользователя

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14
Troubleshooting
Symptom Cause Remedy
Constant leakage from the
outlet before the set pressure is
reached.
A damaged seat and/or poppet. Replace the seat and/or poppet.
Leakage between the body and
the spring housing.
A damaged diaphragm. Replace the diaphragm.
Insufficient torque on the cap
screws.
Tighten the cap screws per Table 2.
The required set pressure
cannot be reached. The inlet pressure to the regulator
is not high enough.
Ensure that the inlet pressure to the
regulator is equal to or greater than the
desired set pressure.
The inlet pressure rises too
much when going from a
dynamic to a static situation.
There is too much flow in the
dynamic situation.
A larger regulator or parallel regulator is
required.
Review application flow capacity and
contact your local authorized sales and
service center.
The regulator will not relieve at
the set point.
The poppet is sticking. Replace the poppet.
The set point has been
accidentally altered.
Readjust the set point.
The set pressure has changed
without adjusting the set screw.
Changes to the outlet pressure
may result in changes to the set
pressure. Maintain a constant outlet pressure on
the regulator. See “
Points of Attention
Before Operation
” about
dependency .
Changes to the flow may result in
changes to the set pressure.
Maintain a constant flow through the
regulator. See “
Points of Attention
Before Operation
” about
accumulation.
Table 3