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Milestone - Model NA，NSA -Standardized Centrifuge Pumps
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.
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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
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