NL-N Single Stage End Suction Pump NDROO SERIES-bom-hydroo

NL-N Single Stage End Suction Pump NDROO SERIES

Applications
- Cooling water
- Water supply/distribution
- Drainage
- Irrigation
- General industrial services

Description
- Back pull out design for fast and easy maintenance.

Performance range
- Capacity: Q up to 1000 m3/h
- Head: H up to 160 m
- Temperature: T up to 110 ºC
- Speed: n 2900/1450 rpm
- Power: P up to 160 kW

Standard material
- Casing: Cast iron
- Impeller: Cast iron, Stainless steel 304 or bronze
- Shaft: Stainless steel

Min inlet pressure
–Min inlet pressure depends on NPSH+0.5m safety margin+gasified pressure. It should be re-calculated the inlet pressure of one of the following happens.
–The liquid is more warm.
–The flow exceeds the nominate value.
–Suction distance is very long or inlet pipe is very long.
–System pressure is too little.
–Inlet pressure is low, working pressure is low.

Typical application
–Clean, thin, non-corrosive, nonflammable or non-explosive liquid without grain or fiber.
–Water supply system
–Heat, air condition system
–Booster, constant pressure water supply
–Firefighting, splitting system
–Irrigating, farming
–Industry cooling, heater circulation system
–Industry transferring, drainage system

Construction
–Non-self-priming, single stage, single suction, horizontal, axial suction and radical discharge, pump body is fixed by base.
–NLF Pump use bearing cradle, which can orientate bearing, prevent from radical vibration, improve the rigidity of rotary part.
–NLF Pump use compacted shaft, use deep grove grease lubricated roller bearing.
–NLF Pump use connect pump and motor with semi-flexible coupling.
–Use standard wearable mechanical seal.
–TEFC motor, size complies to IEC standard.
–NLF Pump dimensions is conform to ISO 2858.
–NF, NX Pump are stub shaft

Specification
–Flow: Max 800m3/h
–Head: Max 160m
–Working pressure: Max 16 bar
–Inlet pressure: Max 6 bar
–Power: Max 160kW
–Liquid temperature: -15 ºC ~110 ºC
–Inlet and Outlet diameter:
Inlet diameter: DN50~DN350
Outlet diameter: DN32 ~DN300

Curve conditions
–Curves tolerance is according to ISO9906, Annex A;
–All curves are based on the measured value of constant motor speed 2900 rpm, 2950rpm, 1450rpm or 1480rpm.
–The measurements were made with aireless water at temperature of 20ºC. The curves apply to a kinematic viscosity of 1mm2/s (1 cst)

Features
–Back-pull-out design, no need to disturb pump body and pipelines when servicing.
–All the NLF Pump models only use 4 kinds of pumps shafts and bearing cover, make parts exchangeable.
–Impeller is optimum design, inlet is enlarged, no whirlpool, deduct the water pump NPSH efficiently, wich makes pump work stable with little noise.
–NF, NX Pump are small, compact, easy to install.