Flowserve 2564 Mixerpac - Manual (Page 12)

12
SYMPTOM CAUSE
Barrier pressure
increases - Defect barrier pressure setting.
- Barrier fluid volume expands owing to heating
(Cooling or forced ventilation of the barrier or quench fluid
circuit not adequate).
Barrier or quench
fluid temperature
increases - Insufficient dimensioning for the cooling of the seal support
system.
- Barrier pressure too high.
- Lack of barrier or quench fluid.
8.10 The mixer shaft may be stopped at any time.
!
The MIXERPAC cannot function during all assembly and maintenance work.
9.0 Shutting Down the Machine and Mixerpac Removal
9.1 The machine can be shut down at any time under normal conditions; please note the
pressure conditions (see item 1.5).
9.2 Before the MIXERPAC can be removed the machine must first be shut down and the
mixer vessel and seal support system depressurized.
9.3 The shaft may be shut down under pressurized conditions.
9.4 Remove the MIXERPAC by following the instructions for installation in reverse order.
Removing the MIXERPAC from the machine may take place during machine
breakdown only.
!
The MIXERPAC must always be removed with the installation plates engaged.
Temperatures at the housing surfaces of the MIXERPAC correspond to the
operating temperatures of the product, respectively the barrier or quench fluid.
Suitable precautions against contacts are necessary.
9.5 To engage the installation plates, loosen the screws, pull the plates into the shaft
sleeve groove, and retighten the screws.
Removing the seal may release product, respectively barrier or quench fluid! All
information and regulations regarding safety measures and protective cloth-
ing with respect to this plant section must be observed and strictly adhered to.
The operator must ensure the proper disposal of the media collected when the
machine is vented or drained.
9.6 Carefully replace the removed MIXERPAC in the original packaging (e. g. wooden
crate) and store or send this to FLOWSERVE for inspection.