Zenit DDG300 Cast Iron 2 Pole Industrial Vortex Drainage Pump (Max 810LPM/90kPa)

The Zenit DDG 300 is a heavy-duty industrial vortex impeller submersible drainage pump from the trusted Zenit Grey Series, designed for high-capacity water and sewage applications. Delivering up to 810 litres per minute (13.5 L/s) with a total head of up to 8.5 metres, it is built to handle wastewater containing solids and fibrous materials in civil, municipal, or industrial installations.

Its robust cast iron hydraulic casing, wide free passage vortex impeller, and powerful 2-pole motor make it the reliable choice for high-flow pits, lift stations, wastewater treatment plants, or any application where dependable solids handling is non-negotiable. Fully ATEX Ex d certified, the DDG 300 is safe for installation in potentially explosive atmospheres.

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: Submersible Vortex Pump
• Suitable For: Water and sewage with solids and filaments
• Approval: ATEX Ex d flameproof
• Power Supply: 415 V, 50 Hz (Three-phase)
• Rated Power (P2): 2.2 kW / 3.0 HP
• Max Flow Rate: 810 L/min (13.5 L/s)
• Max Head: 8.5 m (0.9 bar / 90 kPa)
• Outlet Size: DN 80 (EN 1092-2 Flanged, un-drilled PN10)
• Impeller Type: Set-back vortex impeller
• Free Passage: 80 mm solids handling
• Motor Poles: 2 Pole (~2880 RPM)
• Motor Type: Dry asynchronous motor with thermal protection and leakage sensor
• Duty Cycle: Continuous (S1)
• Max Liquid Temperature: 40°C
• Max Immersion Depth: 10 m
• pH Range: 6 – 14
• Max Fluid Density: 1100 kg/m³
• Max Starts per Hour: 30
• Hydraulic Efficiency: Up to 22.5%
• Noise Level: <70 dB (submerged)
• Ingress Protection: IP68
• Insulation Class: H
• 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