Flowserve MSS - Manual (Page 2)


1. Drawing, Brief Description, Function
See the annex for the installation drawing.
1.1 Specifications for the operations described herein:
Application limits:
Product pressure (bar) Vacuum / 5 1)
Vacuum / 7 )
Test pressure product chamber (bar) 8 3)
Speed (rpm) 350 1)
1750 )
Product temperature (°C) up to 11
1) dry
) wet
3) statically, v = 0 m/s
The application limits specified are maximum load values and assist in
preselection. The application limits must be checked for every application.
A warranty in an individual case is possible only when FLOWSERVE
knows the exact application conditions and these have been confirmed in
a seperate agreement.
1. Brief description
The split mechanical seal MSS is delivered as a bidirectional, partially assembled
mechanical seal. While it has been designed for rugged industrial applications and
ease of installation, it does require careful assembly in a clean environment accord-
ing to the following installation steps.
The MSS seal is primarily designed to seal agitator shafts and can be run dry up
to 350 rpm or wet up to 1750 rpm. Consult your local nearest Flowserve Sales and
Service Representative, regarding other applications.
1.3 The spring force and the product pressure push the seal ring against the mating ring.
The seal faces are sealed from the shaft sleeve, respectively from the housing, by
sealing elements (e. g. O-rings). The faces of the seal ring and the mating ring are
designed as sealing faces.
!
The installation chamber for the mechanical seal type MSS must be checked
against the corresponding drawing and table of dimensions. It must be ensured
that all dimensions, surface qualities and tolerances (e. g. concentricity, runout,
fits) are observed.