S4 16/21 T 4GG 4" submersible pump for boreholes and wells - 4,0kW - 3x400V DAB.S4 GG

Product detailed description

S4 16/21 T 4GG 4" submersible pump for boreholes and wells - 4,0kW - 3x400V

Submersible centrifugal pumps for wells and boreholes larger than 4" diameter. The pumps are used for pumping water, for pressurizing and supplying water to water distribution systems of small and large buildings, civil and industrial, as well as for irrigation, washing and fire protection systems. Technopolymer impellers with stainless steel suction rings. Pump casing, shaft, motor coupling, integrated suction filter and stainless steel cable cover. Suction body, discharge body and hanging lugs in AISI 304 stainless steel. Removable integrated check valve in technopolymer or with stainless steel plate (depending on model). Technopolymer impellers designed to ensure a high level of efficiency in accordance with Directive 2009/125/EC (Eco design - ErP) with MEI ≥ 0.4 for the entire range. ACS certified, WRAS certified. The 4GG motor is a two-pole asynchronous motor, its parts in contact with water are made of AISI 304 stainless steel. The pressure block and bushings are cooled and lubricated with a mixture of water and glycol. The rotor is housed in plain radial bearings, the axial load is captured by a robust plain heel bearing.

- Operating range: up to 21.6 m³/h with a displacement of up to 427 m
- Pumped liquid: Clean, free of solids and abrasive substances, non-viscous, non-aggressive, chemically neutral, properties close to water
- Maximum pump diameter: 99 mm
- Maximum sand quantity: 150 g/m3
- Discharge port diameter: S4-1, S4-2, S4-3, S4-4, S4-6: 1 ¼"
S4-8, S4-12, S4-16: 2"
- Impeller material: Technopolymer
- Fluid temperature range: 0°C to +40°C
- Maximum immersion: 4GG: 300 m
- Maximum number of starts: 20/h
- Degree of protection: IP 68
- Insulation class: F
- Single-phase voltage: 1x230 V 50 Hz
- Three-phase voltage: 3x230 V 50 Hz - 3x400 V 50 Hz
- Installation: vertical, horizontal installation is possible, it is recommended to install a cooling jacket