Sanitary pumps
Sanitary pumps
Sanitary pumps
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Contra<br />
<strong>Sanitary</strong> <strong>pumps</strong><br />
Materials<br />
Pos. Component Material EN/DIN<br />
1 Impeller CrNiMo steel<br />
2 Pump housing CrNiMo steel<br />
3 Shaft seal<br />
4 Pump shaft CrNiMo steel<br />
Design variations<br />
See page 20.<br />
Sterile applications: SiC/SiC/EPDM<br />
Hygienic applications: Carbon/<br />
stainless steel/EPDM or FKM<br />
5 Motor<br />
6 Shroud Stainless steel<br />
7 Foot Stainless steel/cast iron<br />
Standard variation<br />
Contra Adapta ®<br />
Contra Adapta ® SUPER<br />
Contra Adapta ® -V<br />
Contra Bloc<br />
Contra Bloc-SUPER<br />
Variation on request<br />
Contra Bloc-V<br />
Contra CN<br />
Contra tronic<br />
Mechanical shaft seal<br />
Grundfos offers these shaft seal arrangements:<br />
1.4404/<br />
1.4435<br />
1.4404/<br />
1.4435<br />
1.4571/<br />
1.4462<br />
Description<br />
Horizontal installation, Adapta ® motor stool<br />
Horizontal installation, Adapta ® motor<br />
stool, motor with stainless steel shroud<br />
Vertical installation, Adapta ® motor stool<br />
Horizontal installation<br />
Horizontal installation, motor with stainless<br />
steel shroud<br />
Description<br />
Vertical installation<br />
Horizontal installation, long-coupled version<br />
mounted on base plate<br />
Horizontal/vertical installation, motor with<br />
built-in frequency converter (up to 18.5 kW)<br />
• single seal<br />
• double seal, tandem<br />
• double seal, back-to-back.<br />
As standard, the Contra is fitted with a single, inboard,<br />
mechanical shaft seal with an optimum position in the<br />
pumped liquid. This ensures lubrication, cooling as well<br />
as CIP and SIP according to the criteria of hygienic<br />
design.<br />
Standard seals have carbon/stainless steel seal faces and<br />
EPDM O-rings. Other seal face material combinations are<br />
available on request.<br />
Standard connection<br />
Grundfos offers threads to DIN 11851 as standard for<br />
Contra <strong>pumps</strong>.<br />
Connections on request<br />
Threads:<br />
• Aseptic threads to DIN 11864-1.<br />
Flanges:<br />
• Aseptic flanges to DIN 11864-2<br />
• APV flanges<br />
• Flanges to DIN EN 1092-1 (DIN 2633)<br />
• Kremo flanges to DIN EN 1092-1 (DIN 2633/42).<br />
Clamps:<br />
• Clamps to DIN 32676<br />
• Clamps for Tri-Clamp ® /Tri-Clover ® .<br />
Note: Not all pump sizes are available with all connection<br />
types. See page 37 ff.<br />
For other connection types as well as applications and<br />
design of connections, see pages 28 to 33.<br />
Features and benefits<br />
• A wide range of foot options for motor and pump.<br />
• Extremely reliable operation under most working<br />
conditions.<br />
• Optimised hydraulics for high efficiency - reduced<br />
power consumption.<br />
• Contra Adapta ® and CN with explosion-proof or<br />
flameproof motors available for ATEX applications.<br />
• Motors with special voltages and frequencies.<br />
• Pump with water-cooled motor for clean-room applications.<br />
• Adapta ® tronic versions fitted with motors for variable<br />
speed drive with built-in frequency converter,<br />
available for motor sizes up to 18.5 kW.<br />
• Flush or barrier fluid systems for tandem or back-toback<br />
double mechanical seals.<br />
• Mobile <strong>pumps</strong> mounted on two-wheel trolley with<br />
on/off switch.<br />
• Special paint for motor, cast iron and carbon steel<br />
parts (except for Adapta ® Bloc).<br />
See page 53.<br />
Surface treatment<br />
As standard, all wetted parts are electro-polished to<br />
improve corrosion-resistance and surface finish.<br />
11
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