64
Flowserve US Inc.
SIHI
dry
dry
dry
dry
Standard
Standard
Standard
Standard M Series
Dry Running Vacuum Pump
Issue Date: November 21, 2016 Copyright:
FLOWSERVE SIHI Pumps Rev 1
The SIHIdry
has no shaft seals. The only seals are gaskets and ‘O’-rings between casing parts which
should be replaced if the pump is disassembled.
The gas path between the suction and discharge is sealed by the narrow clearance between the wall of
the housing and the rotor. The clearance must be checked during assembly and must not be less than
0.006“ [0,15mm]. If the clearance is less than this the pump should not be started. The spindle pair or
housing should be rectified or replaced.
Figure 24: Overview of Gas kits & O-Rings
Summary of Contents for SIHI dry Standard H Series
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