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SKU: 807380
Zenit GRG550/2/G50HD0FTEX Cast Iron High Head Grinder Pump for Sewage Extraction with Multi-channel Impeller
Australia-Wide
(08) 9240 2992
Official Zenit
Peace of Mind
Product Overview
High-head blackwater and sewage extraction in civil, residential, and industrial applications requires pumps with significant pressure capability and effective solids grinding. The Zenit GRG 550/2/G50H D0FT5 is a 4.0 kW submersible grinder pump with ATEX Zone 1 certification, featuring a robust cast iron construction designed for maximum reliability with a built-in high-head grinder system. The unit is suitable for livestock farm effluents, carparks, and explosive atmosphere environments.
Maximum head for this model is 42.5 metres with a maximum flow of 270 L/Min, driven by a 415V three-phase motor drawing 7.7 Amps. The 4.0 kW motor uses direct starting with 54.1 Amps starting current and produces 13.3 Nm of rated torque. These performance characteristics suit high-head applications requiring significant pressure capability for long-distance transfer or high elevation pumping.
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 43.4%.
Construction features 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 57.6 kg. A ZENS9024.006 Ring Stand is required for free-standing operation.
FEATURES
- Multi-channel open impeller with grinder system for solids reduction
- Chromium steel cutter and cutting disk X102 CrMo17 KU
- Double silicon carbide mechanical seals for reliable containment
- Stainless steel AISI 431 shaft for corrosion resistance
- Bi-epoxy 200 ?m sea water resistant coating
- Hydraulic efficiency of 43.4%
- Direct starting with 54.1 Amps starting current
- Requires ZENS9024.006 Ring Stand for free-standing installation
SPECIFICATIONS
| Max Flow | 270 L/Min |
| Max Head | 42.5 m |
| Power | 4 kW / 415v |
| Rated Current | 7.7 Amps |
| Suitable For | High Head Grinder |
| 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.
Where is this pump intended to transfer wastewater?
For sewage and blackwater containing fibres or filaments, GRG550_2_G50HD0FTEX transfers wastewater from collection sumps and drainage systems across intended service settings.
Which motor supply and protection features does it use?
A 4.0 kW motor uses 415 V three-phase supply in GRG550 2 G50HD0FTEX, with ATEX Zone 1 certification, Class H insulation and IP68 protection.
What impeller or cutting arrangement manages solid waste?
The chromium steel cutter and cutting disk in GRG550-2-G50HD0FTEX reduce fibrous solids before they reach the impeller during sewage transfer.
What are the pump's maximum flow and head ratings?
GRG550/2/G50HD0FTEX has maximum flow of 270 L/Min and amaximum headrating of 42.5 m for hydraulic selection.
Which materials form the casing and rotating shaft?
The casing is Cast Iron EN-GJL 250, and GRG5502G50HD0FTEX pairs it with an AISI 431 stainless steel shaft and mechanical seals.
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