Zenit DDG250 Cast Iron 4 Pole Industrial Vortex Drainage Pump (Max 1520LPM/100kPa)

The Zenit DDG 250 is a durable and high-performing 4-pole submersible vortex drainage pump, built for continuous operation in industrial, municipal, and civil wastewater applications. With a maximum flow of 1520 LPM (25.4 L/s) and a head of up to 10.3 metres, it is ideal for stormwater, sewage, and soiled water transfer, particularly in explosive zones where ATEX Ex d compliance is essential.

Engineered with a wide 80 mm free passage and rugged cast iron construction, this pump is designed to handle fibrous and suspended solids efficiently. The vortex impeller prevents clogging, while the motor and seal assembly ensures long operational life with minimal maintenance.

FEATURES

• ATEX Certified Ex d — Safe for use in hazardous areas (II 2G Ex db IIB T4 Gb, Ex h IIB T4 Gb)
• Set-Back Vortex Impeller — Offers full free passage up to 80 mm for solids-laden liquids
• Robust Cast Iron Construction — Casing and impeller built from EN-GJL 250 cast iron
• Efficient 4-Pole Motor — Low speed for smooth, continuous duty operation
• Silicon Carbide Mechanical Seals (2SiC) — Dual seal system in an oil chamber with leakage detection sensor
• Universal Cable Gland (GAS Thread) — Accepts protective sheathing to safeguard power cable in turbulent or corrosive fluids
• Wet Installation — Requires base plate (ZENS9024.007) for free-standing installation
• Factory Pressure Tested — Guarantees seal and gasket integrity

SPECIFICATIONS

• Brand: Zenit Pumps
• Series: Grey – DDG
• Pump Type: Submersible Vortex Drainage Pump
• Rated Power (P2): 1.8 kW / 2.4 HP
• Voltage: 415 V (3-phase, 50 Hz)
• Max Flow: 1520 L/min (25.4 L/s)
• Max Head: 10.3 m (100 kPa / 1.0 bar)
• Impeller Type: Set-back vortex
• Free Passage: 80 mm
• Outlet Size: DN 80 (EN 1092-2, undrilled)
• Motor Poles: 4-pole (~1421 RPM)
• Efficiency (Hydraulic): 47.8%
• Rated Torque: 12.1 Nm
• Insulation Class: H
• Ingress Protection: IP68
• Seals: 2 x Silicon Carbide (2SiC) + V-Ring
• Shaft Material: Stainless Steel AISI 431
• Cable: 10 m (4G1.5 + 3x1)
• Noise Level: <70 dB (submerged)
• Max Liquid Temperature: 40°C
• Fluid Density: Up to 1100 kg/m³
• pH Range: 6 – 14
• Max Starts Per Hour: 30
• Coating: Bi-epoxy 200 µm (sea water resistant)
• Weight: 68 kg (excluding cable and base plate)
• Mounting Accessory: ZENS9024.007 Ring Stand (ordered separately)
• Warranty: 12 Months (Parts & Labour)

APPLICATIONS

• Industrial wastewater and sewage lift stations
• Municipal stormwater pits and drainage wells
• Civil water treatment plants
• Livestock or agricultural effluent handling
• Underground carparks or heavy-use commercial pits
• Any installation needing high-volume solids handling with ATEX safety