Calpeda - Calpeda Water Pumps
NMD 20/140 Centrifugal Water Pumps - Water Pumps
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.
NMD 20/140 WATER PUMP 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.
NMD 20/140 WATER PUMP 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.
NMD 20/140 WATER PUMP MOTOR
- 2-pole induction motor, 60 Hz (n ˜ 3450 rpm).
- Three-phase 230/460 V.
- Insulation class F.
- Protection IP 44.
NMD 20/140 WATER PUMP 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.
NMD 20/140 WATER PUMP SPECIAL FEATURES ON REQUEST
- Other voltages.
- Special mechanical seal
- Higher or lower liquid or ambient temperatures.
NMD 20/140 WATER PUMP TECHNICAL INFORMATION:
MODEL |
HP |
VOLT |
PHASE |
MAX. AMP |
SUCT |
DISCH |
WT. LBS |
NMD20140A 20H36S |
2 |
230/460 |
3 |
9.4/5.5 |
1 1/4” |
1” |
55 |
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NMD 20/140 Centrifugal Water Pumps
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