Zenit APG750 5.50kW 415v Cast Iron High Head Pump (Max 620LPM/450kPa)

The Zenit APG750 is the most powerful high-head submersible pump in the Zenit Grey Series, engineered for applications where maximum head and reliable high flow are essential. With a maximum flow of 620 litres per minute and a total head of 45 metres, this robust pump is ideal for pressurised water transfer, decorative fountains, industrial process water, or demanding agricultural irrigation.

Designed with a durable cast iron hydraulic body, a high-efficiency multi-channel impeller, and advanced sealing technology, the APG750 combines high performance with outstanding reliability. Certified ATEX Ex d, this pump is safe for operation in potentially explosive atmospheres such as underground carparks, industrial zones, or workshops where flammable vapours or gases may be present.

FEATURES

• ATEX Certified Ex d — Flameproof for safe operation in explosive zones (II 2G Ex db IIB T4 Gb, Ex h IIB T4 Gb)
• Exceptional Head & Flow — Delivers up to 620 L/min at a maximum head of 45 metres
• High Head Impeller — Multi-channel hydraulic design maintains high pressure with reliable efficiency
• Heavy-Duty Cast Iron Build (EN-GJL 250) — Casing and impeller built for durability in tough environments
• Stainless Steel Shaft (AISI 431) — Corrosion-resistant shaft with tapered coupling for secure impeller mounting
• Dual Silicon Carbide Mechanical Seals (2SiC) — Enclosed in a large oil chamber for maximum seal protection
• Integrated Leakage Detection — Protects the motor and seals, ensuring longevity
• Anti-Clogging Hydraulic Profile — Designed to expel solids and resist fouling
• Universal GAS Thread Cable Gland — Accepts protective sheathing for added cable protection
• Pressurised Testing — Every pump is factory pressure tested for seal and assembly integrity
• Rugged Stainless Steel Handle — Makes lifting and installation safer and easier

SPECIFICATIONS

• Brand: Zenit Pumps
• Series: Grey – APG High Head
• Power Supply: 415 V, 50 Hz (Three-phase)
• Rated Power (P2): 5.50 kW / ~7.5 HP
• Max Flow Rate: 620 L/min (10.3 L/s)
• Max Head: 45 m (4.5 bar / 450 kPa)
• Outlet Size: G 2” – DN32 (EN 1092-2)
• Impeller Type: High head multi-channel impeller
• Free Passage: 10 mm
• Motor Poles: 2 Pole (~2866 RPM)
• Motor Type: Dry asynchronous motor with thermal protection and leakage detection sensor
• Max Liquid Temperature: 40°C
• pH Range: 6 – 14
• Max Fluid Density: 1100 kg/m³
• Max Starts per Hour: 30
• Hydraulic Efficiency: 49.9%
• Noise Level: <70 dB (submerged)
• Ingress Protection: IP68
• Insulation Class: H
• Cable: 10 m (4G1.5 + 3x1)
• Construction Materials:
• Pump Casing & Impeller: Cast Iron EN-GJL 250
• Shaft: Stainless Steel AISI 431
• Seals: 2 x Silicon Carbide (2SiC) + V-Ring
• Gaskets: NBR
• Coating: Bi-epoxy 200 µm sea water resistant
• Screws: Stainless Steel A2-70
• Weight: ~60.3 kg (excluding stand and guide system)
• Certification: ATEX Ex db IIB T4 Gb, Ex h IIB T4 Gb
• Warranty: 12 Months (Parts & Labour)

APPLICATIONS

• Stormwater and wastewater treatment plants
• Civil sewage and lifting systems
• Livestock farms and agricultural wastewater
• Underground car parks and stormwater pits
• Industrial water treatment and process waste
• Ideal for liquids containing suspended solids, filaments or low-density sludge