NA series close coupled centrifugal pumps are with single impeller, which manufactured according to European standards EN733; NA series are widely used in water supply for living uses; industrial uses and general water plants projects; water supply; spray irrigation and pressure sets; heating and air-conditioning plants etc.

Pump Specifications 

Discharge flange diameter: DN32 – DN80 mm
Capacity Q range: 4.5m³/h - 240m³/h (50HZ)
Head H range: 10m – 92.5m
Operating speed: 2900RPM (50Hz)
 

Operation Conditions 

Working Temperature Range:  -10°C ~ +90°C
Max. Allowable Working Pressure(MAWP):  10bar 
Hydro-static Test Pressure = 1.3 times the maximum discharge pressure, but not exceed 13 bar

Features & Benefits 

Construction Features 

Main dimensions: Apply to EN733 (DIN24255) standard and backpull out type
Casing structure: End suction, center radial discharge
Flange pressure rate: ISO7005.2 PN1.6MPa
Shaft seal: Single mechanical seal (Graphite / Silicon carbide / Ceramic / NBR / FPM / SS304 / SS316) According to Standard EN 12756
Driven shaft: Pump and motor flanged together to form a close-coupled unit, with common shaft

Benefits 

Advanced high efficiency design
Reliability
Distinguished heat dissipation
Silence running
Compact structure