NM 40/20 Centrifugal Water Pumps - Water Pumps

Closed-couple centrifugal pumps; electric motor withextended shaft directly connected to the pump. 
Pump casing with axial suction and radial delivery on top,main dimensions and performance according to EN 733.
NM: version with pump casing and motor bracket in cast iron.
B-NM: version with pump casing and motor bracket/cover inbronze. (the pumps are supplied fully painted).
 
Connections: Flanges according to PN 10, EN 1092-2.
Counter-flanges (on request)
 
NM WATER PUMP APPLICATIONS

• For clean liquids without abrasives, which arenon-aggressive for the pump materials (solids content up to 0,2%).
• For water supply.
• For heating, air conditioning, cooling and circulationplants.
• For civil and industrial applications.
• For fire fighting applications. 
• For irrigation.

 
NM WATER PUMP OPERATING CONDITIONS

• Liquid temperature from 14 F to 194 F.
• Ambient temperature up to 104 F
• Total suction lift up to 21 ft
• Maximum permissible working pressure up to 140 psi.
• Continuous duty.

 
NM WATER PUMP MOTOR

• 2-pole induction motor, 60 Hz (n ˜ 3450 rpm).
• NM: three-phase 230/460 V.
• Insulation class F. Protection IP 55
• Classification scheme IE2
• Constructed in accordance with: EN 60034-1; EN 60034-30.

NM WATER PUMP MATERIALS

• Pump casing: Cast iron.
• Motor Bracket: GJL 200 EN 1561.
• Impeller: Brass CW510L (lead free public LAW 111-380).
• Shaft: Cr steel AISI 430.
• Mechanical seal: Carbon- Ceramic- NBR.

NM WATER PUMP SPECIAL FEATURES ON REQUEST

• Other voltages. 
• Protection IP 55.
• Bronze impeller. 
• Special mechanical seal.
• Packed gland (only for NM standard construction).
• Single-phase motor (NMM) up to 1.5 kW.
• Explosion proof construction in accordance with Directive94/9 EEC (ATEX).
• Higher or lower liquid or ambient temperatures.

NM WATER PUMP TECHNICAL DATA:

MODEL	HP	VOLT	PHASE	MAX. AMP	SUCT.	DISCH.	WT. LBS
NM4020 50H36S	5	230/460	3	18/11	2.5”	1 1/2”	120
NM4020 75H36S	7.5	230/460	3	20/12	2.5”	1 1/2”	140
NM4020 100H36S	10	230/460	3	26/17	2.5”	1 1/2”	161