Zenit DDG550 Cast Iron 2 Pole Industrial Vortex Drainage Pump (Max 1390LPM/160kPa)

The Zenit DDG 550 is a high-flow, industrial-grade submersible vortex pump designed for heavy-duty drainage and sewage applications where solids handling and reliable continuous duty are essential. With a maximum capacity of 1390 litres per minute (23.1 L/s) and a head of up to 16.3 metres, it’s the ideal solution for demanding civil, municipal, and industrial environments.

Built from rugged EN-GJL 250 cast iron, the DDG 550 features a set-back vortex impeller with 80 mm free passage for optimal solids handling and reduced clogging risk. Certified to ATEX Ex d standards, it’s also suitable for installation in potentially explosive atmospheres.

FEATURES

• ATEX Ex d Certified — Safe for explosive atmospheres (Ex db IIB T4 Gb, Ex h IIB T4 Gb)
• High Solids Handling — Set-back vortex impeller with 80 mm free passage
• Rugged Cast Iron Construction — Casing and impeller in EN-GJL 250 for superior durability
• Heavy-Duty Motor — 2-pole motor with high-speed operation for maximum flow
• Dual Silicon Carbide Mechanical Seals — Enclosed in a large oil chamber with leakage detection sensor
• Universal Cable Gland — GAS thread design accepts sheathing for enhanced cable protection
• Wet Installation — Designed for use with base plate (ZENS9024.114) for free-standing operation
• Pressure Tested — Factory-tested for seal and gasket integrity

SPECIFICATIONS

• Brand: Zenit Pumps
• Series: Grey – DDG
• Pump Type: Submersible Vortex Drainage Pump
• Power Supply: 415V, 3-phase, 50 Hz
• Rated Power: 4.0 kW / 5.5 HP
• Max Flow: 1390 L/min (23.1 L/sec)
• Max Head: 16.3 m (160 kPa / 1.6 bar)
• Outlet Size: DN 80 (EN 1092-2 flanged, undrilled)
• Impeller Type: Set-back vortex impeller
• Free Passage: 80 mm solids
• Motor Speed: ~2876 RPM (2-pole)
• Cooling: Wet installation only (no jacket)
• Max Liquid Temperature: 40°C
• Max Immersion Depth: 10 m
• Fluid Density: Up to 1100 kg/m³
• pH Range: 6 – 14
• Starts per Hour: Max 30
• Seals: Dual SiC mechanical seals + V-ring
• Shaft Material: Stainless Steel AISI 431
• Coating: Bi-epoxy 200 μm, seawater resistant
• Cable: 10 m (4G1.5 + 3x1)
• Ingress Protection: IP68
• Insulation Class: H
• Noise Level: <70 dB (submerged)
• Certification: ATEX II 2G
• Weight: 71.6 kg
• 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