Viking Pump TSM280: Duralobe (Discontinued) - Manual (Page 10)

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2.4 Cleaning.
The
Duralobe ® pump series is suitable for both manual cleaning and
CIP (Cleaning In Place), refer to section 3.3.2.
The product seals are mounted directly behind the rotors and are
designed and positioned to minimize product entrapment and maximize
the effects of cleaning.
This strategic positioning of the product seals, combined with their ease
of access provides an arrangement that can be more effectively
cleaned by both manual and CIP procedures.
It is recommended that the exterior of the pump is cleaned periodically.
2.5
Pump Model Designation.
The designation of pump models are as follows:
S1S S3S
S1M S3M
S1L S3L
S2S S4S
S2M S4M
S2L S4L
This information, together with the pump serial number, should be
provided when requesting additional information on the pump or when
ordering spare parts. The pump serial number is stamped on the pump
nameplate and the rotorcase, (refer to section 2.6, Figs 2 and 3).
For the maximum operating pressures, temperatures and speeds refer
to section 3.2, Fig 6.