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SKU: 807381
Zenit GRG750/2/G50HA0FTEX Cast Iron Heavy Duty Grinder Pump for Sludge with Multi-channel Impeller
Australia-Wide
(08) 9240 2992
Official Zenit
Peace of Mind
Product Overview
Large-scale residential, civil, livestock, and industrial environments require pumps that can handle high volumes of fibrous wastewater while maintaining grinding performance. The Zenit GRG 750/2/G50H A0FT5 is a 5.5 kW submersible grinder pump with ATEX Zone 1 certification, featuring a specialised grinding assembly with exceptional mechanical reliability for lifting and grinding wastewater containing filaments or fibres. The unit is designed to operate safely in volatile atmospheres.
Performance specifications include a maximum head of 46.4 metres and a maximum flow of 504 L/Min, powered by a 415V three-phase motor drawing 10.8 Amps. The 5.5 kW motor uses direct starting with 77.8 Amps starting current and produces 18.3 Nm of rated torque. These characteristics suit high-volume, high-head applications requiring effective solids processing.
Hydraulic design incorporates a multi-channel open impeller with grinder system, with the impeller manufactured from Cast Iron EN-GJL 250. The grinder mechanism uses chromium steel cutter and cutting disk (X102 CrMo17 KU) that process all solids and fibrous materials. Free passage is 0 mm as all solids are reduced by the grinding system. Hydraulic efficiency is rated at 44.7%.
Construction consists of a Cast Iron EN-GJL 250 casing with bi-epoxy 200 ?m sea water resistant coating. The shaft is stainless steel AISI 431, and sealing uses two mechanical seals in silicon carbide (2SiC). Motor protection includes Class H insulation, IP68 rating, thermal protection, and a leakage sensor. Cable length is 10 metres with 4G1,5+3x1 configuration, and the unit weighs 60.3 kg. A ZENS9024.006 Ring Stand is required for free-standing operation.
FEATURES
- Multi-channel open impeller with grinder system for fibrous waste
- Chromium steel cutter and cutting disk X102 CrMo17 KU
- Double silicon carbide mechanical seals for containment integrity
- Stainless steel AISI 431 shaft with corrosion-resistant properties
- Bi-epoxy 200 ?m sea water resistant coating
- Hydraulic efficiency of 44.7%
- Maximum starts per hour: 30
- Requires ZENS9024.006 Ring Stand for free-standing installation
SPECIFICATIONS
| Max Flow | 504 L/Min |
| Max Head | 46.4 m |
| Power | 5.5 kW / 415v |
| Rated Current | 10.8 Amps |
| Suitable For | Heavy Sewage |
| Body Material | Cast Iron EN-GJL 250 |
| Liquid Temperature | Maximum 40°C |
| Outlet Size | 50 mm |
| Warranty | 12 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
Which motor supply and protection features does it use?
A 5.5 kW motor uses 415 V three-phase supply in GRG750_2_G50HA0FTEX, with ATEX Zone 1 certification, Class H insulation and IP68 protection for submerged service.
What impeller or cutting arrangement manages solid waste?
The chromium steel cutter and cutting disk in GRG750 2 G50HA0FTEX reduce fibrous solids before they reach the impeller during sewage transfer.
How is the pump body protected against wear?
The casing is Cast Iron EN-GJL 250, and GRG750-2-G50HA0FTEX pairs it with an AISI 431 stainless steel shaft and mechanical seals.
What wastewater applications suit this pump's design?
For sewage and blackwater containing fibres or filaments, GRG750/2/G50HA0FTEX transfers wastewater from collection sumps and drainage systems across intended service settings.
Which maximum flow and head values apply to this pump?
GRG7502G50HA0FTEX has maximum flow of 504 L/Min and amaximum headrating of 46.4 m for hydraulic selection.
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