Zenit APG400 3.00kW 415v Cast Iron High Head Pump (Max 380LPM/320kPa)

The Zenit APG400 is a powerful, ATEX-certified high-head submersible pump from the Zenit Grey Series, purpose-built for clear water and high-pressure drainage applications in civil, industrial, and commercial installations. Delivering up to 380 litres per minute with a total head of 32 metres, the APG400 is ideal for decorative fountains, water features, irrigation, or anywhere consistent high head and reliability are required.

With rugged cast iron hydraulics, a high-head impeller, and ATEX Ex d flameproof certification, this unit provides safe and efficient operation — even in potentially explosive atmospheres such as underground carparks, workshops, or industrial sites.

FEATURES

• ATEX Certified Ex d — Safe for operation in hazardous zones (II 2G Ex db IIB T4 Gb, Ex h IIB T4 Gb)
• High-Head Impeller — Maintains high-pressure flow for decorative water displays and irrigation
• Strong Hydraulic Design — Passes small solids up to 8 mm with ease
• Cast Iron Build (EN-GJL 250) — Durable pump casing and impeller for long-term reliability
• Stainless Steel Shaft (AISI 431) — Corrosion-resistant with secure tapered coupling
• Dual Silicon Carbide Mechanical Seals (2SiC) — Isolated in a large oil chamber with integrated leakage sensor
• Leakage Detection — Built-in sensor protects the motor and seals
• Anti-Clogging Hydraulic Profile — Special hydraulic design prevents blockages and fouling
• Universal GAS Thread Cable Gland — Allows sheathing for power cable protection in aggressive conditions
• Pressurised Testing — Every unit is factory-tested to guarantee perfect sealing
• Rugged Stainless Steel Lifting Handle — For safe handling and easy installation

SPECIFICATIONS

• Brand: Zenit Pumps
• Series: Grey – APG High Head
• Power Supply: 415 V, 50 Hz (Three-phase)
• Rated Power (P2): 3.00 kW / 4.0 HP
• Max Flow Rate: 380 L/min (6.3 L/s)
• Max Head: 32 m (3.2 bar / 320 kPa)
• Outlet Size: G 2” – DN32 (EN 1092-2)
• Impeller Type: High head impeller
• Free Passage: 8 mm
• Motor Poles: 2 Pole (~2877 RPM)
• Motor Type: Dry asynchronous motor with thermal protection and leakage sensor
• Max Liquid Temperature: 40°C
• pH Range: 6 – 14
• Max Fluid Density: 1100 kg/m³
• Max Starts per Hour: 30
• Hydraulic Efficiency: 50.1%
• Noise Level: <70 dB (submerged)
• Ingress Protection: IP68
• Insulation Class: H
• Cable: 10 m (4G1.5 + 3x1)
• Construction Materials:
• Pump Case & 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: ~46 kg (excluding ring stand & 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