Zenit DDG400 Cast Iron 2 Pole Industrial Vortex Drainage Pump (Max 1000LPM/120kPa) 

The Zenit DDG 400 is a heavy-duty industrial vortex submersible drainage pump, designed for high-volume water and sewage transfer in civil, municipal, and industrial systems. Delivering up to 1,000 litres per minute with a total head of 12 metres, this robust 2-pole pump is built to handle solids-laden wastewater, sludge, and effluent with ease.

Its rugged cast iron construction, wide free passage, and efficient vortex impeller ensure reliable performance even with fibrous or large solid particles. Fully ATEX Ex d flameproof certified, the DDG 400 is safe for use in potentially explosive atmospheres — making it ideal for underground pits, lift stations, stormwater basins, and wastewater treatment plants.

FEATURES

• ATEX Certified Ex d — Approved for use in explosive zones (II 2G Ex db IIB T4 Gb, Ex h IIB T4 Gb)
• High Flow & Head — Max flow of 810 L/min with up to 8.5 m total head
• Set-Back Vortex Impeller — 80 mm free passage for excellent solids expulsion
• Rugged Cast Iron Construction (EN-GJL 250) — Pump case and impeller built to withstand harsh wastewater conditions
• Stainless Steel Shaft (AISI 431) — Corrosion-resistant, securely coupled via a tapered fit
• Dual Silicon Carbide Mechanical Seals (2SiC) — Fully enclosed in a large oil chamber with leakage detection sensor
• Inspectable Oil Chamber — Extends seal life and is easily maintained
• Universal GAS Cable Gland — Accepts protective sheathing for extra cable safety in aggressive liquids
• Pressurised Factory Testing — Each unit undergoes thorough pressure testing for gasket and seal reliability
• Quiet Operation — Operates under 70 dB when submerged

SPECIFICATIONS

• Brand: Zenit Pumps
• Series: Grey – DDG Vortex
• Product Type: Industrial Submersible Vortex Pump
• Power Supply: 415 V, 50 Hz (Three-phase)
• Rated Power (P2): 4.0 kW / ~5.5 HP
• Max Flow Rate: 1,000 L/min (16.7 L/s)
• Max Head: 12 m (1.2 bar / 120 kPa)
• Outlet Size: DN 80 (EN 1092-2 Flanged)
• Impeller Type: Set-back vortex impeller
• Free Passage: Up to 80 mm solids
• Motor Poles: 2 Pole (~2,860 RPM)
• Motor Type: Dry asynchronous motor with thermal protection and leakage sensor
• Max Liquid Temperature: 40°C
• Max Fluid Density: 1100 kg/m³
• Max Starts per Hour: 30
• Insulation Class: H
• Ingress Protection: IP68
• Hydraulic Efficiency: Up to 22%
• Noise Level: <70 dB (submerged)
• Cable: 10 m (4G1.5 + 3x1)

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