pump calpeda NRM 50/125C

Calpeda NR, NR4 - centrifugal monobloc pump with direct connection of electric motor, pump part and impeller on one shaft. The pump body has pressure and suction nozzles of the same diameter, located opposite each other in one line of the "in-line" type (multi-row design). Connection: flange according to EN 1092-2, PN 10.

Application

Pumping clean, uncontaminated liquids that do not contain abrasive impurities and do not come into contact with pump materials (solids content Max.-0.2%). It is used in heating, air conditioning and cooling circulation systems. It is used as in household and industrial spheres of the national economy.

Specifications:

• Temperature of pumped liquid: -10 °С + 90 °C
• Ambient temperature: up to 40 °C
• Manometric suction height: up to 7 m.
• Casing pressure: 10 bar (16 bar).
• Continuous operation mode.

Materials

• Pump body: cast iron EN GJL 200 1561.
• Impeller: cast iron EN GJL 200 1561, brass (P-Cu Zn 40 Pb 2 UNI 5705 per NR 50 ).
• Shaft: chrome-nickel steel (stainless steel AISI 430 or AISI 303).
• End seal: graphite - ceramic - NBR.

Electric motor

• Asynchronous 2-pole electric motor 50 Hz, n=2900 rpm.
  • NR: three-phase - 230/400 V (±10%);
  • NRM: single-phase - 230 V (±10%) ;
• Asynchronous 4-pole electric motor 50 Hz, n=1450 rpm.
  • NR4: three-phase - 230/400 V (+-10%);
  • NR4M: single-phase - 230 B (+-10%);
• Isolation class: "F".
• Protection class: IP 54.
• The design complies with the IEC 60034 standard.
• Special versions IP 55, 60Hz - on request.