Calpeda NMD20140A 20H36S - NMD 20/140AE-60 Close Coupled Centrifugal Pumps For Special Applications with Mechanical SEAL XYXYRRY

Calpeda NMD20140A 20H36S - NMD 20/140AE-60 Close Coupled Centrifugal Pumps For Special Applications with Mechanical SEAL XYXYRRY

Features

Close-coupled, centrifugal pumps; electric motor with extended shaft directly connected to the pump.
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 ¢â¬¹ ¢â¬œ 3450 rpm).
• Three-phase 230/460 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.