Minor N / H

Medium-sized three-phase drainage pump. Minor N (normal head) has a 4 in (DN 100) discharge and Minor H (high head) a 3 in (DN 80) discharge; most Grindex pumps can be converted between the N and H versions. Capacity from 5 to 122 m³/h, head up to 37 m, max power consumption 4.4 kW, solids passage 10 mm, weight 50 kg. Internal starter, SMART motor protection and optional level regulator. Patented air valve and SMART electronic protection allow unlimited dry running; standard liquid temperature up to 40 °C (70 °C warm-water version available).

Key technical parameters

• Flow rate: up to 122 m³/h
• Pressure: up to 3.6 bar
• Head: up to 37 m
• Fluid temperature: up to 40 °C
• Solids passage: up to 10 mm
• pH range: 5 to 8
• Motor power: up to 4.4 kW
• Weight: from 50 kg
• DN outlet: DN 80 to DN 100
• Drive: Electric
• Installation: Submersible
• Casing material: Aluminium with stainless steel outer casing
• Impeller / rotor material: Hard Iron (closed impeller)

Media handled

• Liquids: Drainage, Groundwater
• Media properties: Low viscosity, Contains solids, Abrasive

Applications and industries

• Mining
• Construction