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Calpeda - Above Ground Calpeda
NM - Pumps
CONSTRUCTION

Close-coupled, centrifugal pumps; electric motor with
extended shaft directly connected to the pump.
- Single-impeller
- Two back-to-back impellers (with axial thrust balancing).

Connections: threaded ports NPT.

APPLICATIONS

- For clean liquids without abrasives, which are, non-aggressive
for the pump materials ( solids content up to 0.2%).
- For water supply.
- For heating, air-conditioning, cooling and circulation plants.
- For civil and industrial applications.
- For irrigation.

OPERATING CONDITIONS

Liquid temperature from 14 °F to 194 °F.
Ambient temperature up to 104 °F.
Total suction lift up to 23 ft.
Maximum permissible working pressure up to 145 psi
(232 psi for pumps NMD).
Continuous duty.

MOTOR

2-pole induction motor, 60 Hz (n ˜ 3450 rpm).
Three-phase 230/460 V.
Single-phase 115/230 V, 115 V, 230 V.
Insulation class F.
Protection IP 44.

MATERIALS

Pump casing: Cast iron.
Lantern bracket: GJL 200 EN 1561.
Impeller: Brass CW510L (lead free public LAW 111-380).
Shaft: Cr steel AISI 430.
Cr Ni steel AISI 302 for 1 - 1.5 - 2.5 - 3 HP.
Mechanical seal: Carbon- Ceramic- NBR.

SPECIAL FEATURES ON REQUEST

- Other voltages.
- Special mechanical seal
- Higher or lower liquid or ambient temperatures.
NM
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