Sanitary pumps

Contra
Sanitary pumps
Contra
The design fulfils the following requirements:
• QHD criteria
• EHEDG recommendations.
• GOST sanitary standard (Russia).
GR8961
Fig. 7
Contra
Contra I and II
Technical data
Head:
up to 160 m
Flow rate: up to 55 m 3 /h
Operating pressure:
up to 25 bar
Operating temperature: 95 °C
(up to 150 °C on request)
Sterilisation temperature: 140 °C (SIP)
Applications
The unique hygienic design and the materials used make
the Contra pumps suitable for these applications:
Food and beverage industry
• breweries and dairies
• carbonising systems
• food processing plants.
Pharmaceutical and related industries
• purification systems
• pure-water systems (WFI)
• personal care.
Other industrial applications
• surface treatment systems
• water processing systems
• CIP feeding systems.
Fig. 8
Certification
The pumps comply with these surface finish requirements:
Standard pump version: 3A1
Optional: 3A2, 3A3.
For explanation, see section Certification, page 55.
The pump housing is made of rolled and forged stainless
steel to DIN EN 1.4404/1.4435, the equivalent of AISI
316L. This guarantees a homogeneous, pore-free surface,
in contrast to cast materials.
The Contra pumps have open diffusers. The design
ensures that O-ring seals for pump housing and impeller
are located to meet the criteria of hygenic design with
metal-to-metal contact and that there are no dead ends
in the pump housing.
Contra pumps are fitted with a semi-open impeller as
standard. See page 51.
The vertical versions are fully self-draining through the
suction port of the pumps.
The pumps have a mechanical shaft seal and a fancooled
asynchronous motor to enclosure class IP55.
1 4 5 6
Construction
Contra single-stage or multi-stage, end-suction centrifugal
pumps are designed to meet the hygienic requirements
of sterile process technology.
The pumps are available in a variety of flexible versions.
The pumps are CIP and SIP capable in compliance with
the DIN EN 12462 performance criteria. They also meet
the GMP requirements regarding FDA-approved materials.
Fig. 9
2 3 7
Sectional drawing of Contra I Bloc-SUPER on combi
foot
TM02 9610 3504
10