Self-priming pump Gianneschi JET 4 B 230/400V 50Hz – Code 01J3B3

The Gianneschi Pumps and Blowers self-priming electric pump JET 4 B is designed for system supply applications in nautical and technical fields. Identified by the manufacturer code 01J3B3, this version operates with 230/400 V three-phase power at 50 Hz and is part of the “JET” series of self-priming electric pumps.

The JET series is intended for applications requiring operational reliability, self-priming capability, and compatibility with onboard water and service systems. The JET 4 B configuration uses a bronze pump body with stainless steel support and is suitable for technical installations where corrosion resistance and continuous operation are important.

Main features

• Self-priming electric pump JET series
• Manufacturer code: 01J3B3
• Power supply: 230/400 V – 50 Hz
• Three-phase alternating current version
• Bronze pump body with stainless steel support
• Shaft in AISI 316 stainless steel
• Impeller in special brass alloy
• Diffuser and venturi in polycarbonate
• Mechanical seal in ceramic/graphite stainless steel
• Self-priming capacity up to 8 vertical meters
• Motor insulation class: F
• Motor protection: IP44
• Version for technical and nautical use

Identifying data

Product: EL/Pump JET 4 B
Brand: Gianneschi Pumps and Blowers S.R.L.
Manufacturer code: 01J3B3
SKU: GIA000000523
Series: JET
Type: Self-priming electric pump

Electrical specifications

Construction and materials

The JET 4 B version belongs to the “B” configuration of the Gianneschi range, identified by:

• Pump body in bronze
• Stainless steel support
• Shaft in AISI 316 stainless steel
• Impeller in special brass alloy
• Diffuser and venturi in polycarbonate
• Mechanical seal in ceramic and stainless graphite

This configuration is designed for technical and marine uses where corrosion-resistant materials and components suitable for continuous use are required.

Performance and operation

The JET series pumps are self-priming jet electric pumps with a venturi diffuser and closed impeller. According to the manufacturer's declared data, they can achieve a self-priming capacity of up to 8 vertical meters.

After the first filling of the pump body, the system maintains the automatic priming capacity even with an empty suction pipe.

For the JET 4 B version in alternating current 230/400 V – 50 Hz, the technical catalog reports:

• Rated power: 0.75 kW
• Speed: 2900 rpm
• Connections: 1” suction / 1” delivery
• Indicative weight: 22 kg

Typical applications

The JET series is used in various technical and nautical systems, including:

• Water supply systems
• Autoclave systems
• Conditioning units
• WC supply
• Onboard service systems
• Chain washing
• Firefighting applications

The pump selection must always be made by verifying hydraulic, electrical, and dimensional compatibility with the existing system.

Indicative dimensions

The dimensions provided by the manufacturer are indicative.

Installation and operational notes

For proper operation, Gianneschi recommends the installation of:

• non-return valve (check valve) to prevent backflow
• check valve on the suction circuit

The electrical and hydraulic installation must be carried out by qualified personnel, following the manufacturer's instructions and the regulations applicable to the system.

Recommended checks before ordering

Before purchasing, it is advisable to check:

• correspondence of code 01J3B3
• electrical compatibility 230/400 V – 50 Hz
• dimensions and connections of the installed pump
• flow rate and head requirements of the system

Important note

The data in this sheet come from the technical documentation of the Gianneschi ECOJET – ECOINOX – JET series. Actual performance may vary depending on installation and usage conditions. For critical applications or detailed dimensional checks, it is advisable to consult the manufacturer's official technical documentation.