PRODUCT DESCRIPTION

Non-self-priming single-stage horizontal end-suction centrifugal pump.

Axial entrance and radial exit.

The use of back-pull structure, maintenance does not need to dismantle the pump body and pipeline

FEATURES AND ADVANTAGES

Stable operation and stable structure.

Convenient maintenance.

Low noise

Product structure

Non-self-priming, single stage, single suction, horizontal axial suction and radical discharge, pump body is fixed by base.

Standard wear-resistant mechanical seal.

TEFC motor, size complies to IEC standard.

NISO pump use bearing cradle,which can orientate bearing, prevent from radical vibration, improve the rigidity of rotary part.

NISO pump integral pump shaft, use deep grove grease lubricated bearing.

NISO pump use semi-flexible coupling to connect pump and motor.

NISO pump dimension conforms to ISO2858 standard.

NIS,NISF series pump are coupled with extension shaft structure.

Inlet and outlet flange and pump body of cast iron pump conform to standard of PN16 in GB/T17241.6 (ISO7005-2); Inlet and outlet flange and pump body of Stainless Steel pump conform to standard of PN16 in GB/T9113 (ISO7005-1).

Features

• Adopt Pull-back structure, avoid dismantling pump body and pipeline when repairing.

• All NISO pump only use 4 types of pump shafts and bearing cover, making many parts exchangeable.

• Designs of NIS,NISO,NISF series impellers are optimized, inlet is enlarged, no whirlpool, deduct water pump NPSH efficiently, which makes pump work stable with little noise. Performance curve is flat, flow range is wide, performance is similar with international pump industry peers.

• NIS*G,NIS*(Q) series pump are designed according to newest standard in GB/T5662,whose performance curve are steeper than NIS,NISO,NISF series. Flow range conforms to requirements, use excellent hydraulic model and CFD optimition, high efficiency, reasonable head spread, compact structure, easy maintenance.

• NIS,NISF pumps are small,compact and easy to install.

• Main spare parts like impeller, pump body, pump head of NIS*G,NIS*(Q) series pump are cast iron. But can be customized according to customers’ requirement.