Desmi SA Series - Product Description; Delivery; Technical Data; Explanation of the Type Number

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DESMI Pumping Technology A/S 1
Tagholm 1
9400 Nørresundby – Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
1. PRODUCT DESCRIPTION
These operation and maintenance instructions apply to the DESMI SA-pump in Monobloc design.
DESMI SA is a single-stage self-priming centrifugal pump with stainless steel shaft and mechanical shaft
seal. The SA-pump is further equipped with a semi-open impeller which does not choke as
easily as a closed impeller.
The pump is suitable for pumping clean and polluted liquids with temperatures between 0 and 80C. With
special shaft seal up to 120C.
The suction branch of the pump is mounted well above impeller inlet. This is an advantage as the pump
will not - in case of a non-return valve leakage - lose all the priming water and consequently the priming
ability.
The pump has compact structure which provide convenient installation without having to align the coupling.
As the pump is self-priming, a foot valve will not be necessary on the suction line, just as the pump, contrary
to ordinary centrifugal pumps, will resume pumping if, for a short moment, the liquid has been lowered to
a level below the suction pipe.
The pump is particularly suitable for the pumping of water in connection with e.g. cooling of diesel engines,
as bilge pump, ballast pump, irrigation, washing plants, air conditioning, cooling systems, and sanitary
systems, etc. Furthermore, in the majority of cases where the transport of liquid is required within industry.
1.1 DELIVERY
- Check on receipt that the delivery is complete and undamaged.
- Defects and damages, if any, to be reported to the carrier and the supplier immediately
in order that a claim can be advanced.
2. TECHNICAL DATA
The pumps are manufactured in various material combinations which appear from the type number on the
name plate. See below.
2.1 EXPLANATION OF THE TYPE NUMBER
All the SA-pumps are provided with a name plate. The type number indicated on the name plate is built
up as follows:
SA-XXX-YYY-ZZ-MRO
XXX,YYY,ZZ : Pump size where
XXX : Suction branch diameter.
YYY : Standard impeller diameter.
ZZ : Height of the impeller blades.
M : The material combination of the pump.
R : The assembly combination of the pump.
O : The direction of rotation of the pump, anti-clockwise/clockwise.