Gianneschi CB-20-87 electric pump – Sea water circulation

Supplier code: 01CB20G102

La Gianneschi CB-20-87 is an electric centrifugal pump of the series CB, designed for the circulation of clean water, both fresh and seawater, in technical systems and onboard applications.
This version is powered by 230 V – 50 Hz – single-phase (1Ph) and has a motor of 0.25 kW.

It is the recommended choice when a compact, reliable, and compliant with nautical standards, pump is needed, easy to integrate into existing systems or new circuits.

Identification and configuration

• Product: EL/centrifugal pump CB-20-87
• Series: CB (centrifugal pumps)
• Manufacturer: Gianneschi Pumps and Blowers S.R.L.
• Original code: 01CB20G102
• Power Supply: 230 V
• Frequency: 50 Hz
• Phase: 1Ph (single-phase)
• Potenza nominale: 0.25 kW

Usage framework

The CB series is expressly designed for applications requiring the circulation of fresh or sea water in continuous service, such as:

• onboard technical systems,
• cooling and air conditioning circuits,
• circulation and water supply in water and sanitary systems,
• heating and cooling systems,
• circuits requiring medium flow rates with low head.

The code CB-20-87 and the code 01CB20G102 are the main references to correctly identify the model during replacement, ordering, or maintenance.

Construction features of the CB series

• Pump body: bronze (optionally cast iron on request)
• Impeller: bronze or special brass alloy
• Shaft: AISI 316 stainless steel
• Mechanical seal: ceramic, graphite, stainless steel
• Motor: class F insulation – IP 44/55 protection for AC versions

These materials make the CB series suitable for use with seawater and fit for operation in harsh environments typical of the nautical sector.

Typical applications

The CB-20-87 pump can be used in:

• seawater circulation circuits,
• engine cooling systems or onboard technical systems,
• nautical HVAC circuits,
• replacements and refitting where a pump with 230 V single-phase power supply is needed,
• installations requiring compactness and reliability in continuous service.

Advantages for installers and technicians

• Immediate identification through model code and supplier code (01CB20G102).
• Clear compatibility thanks to essential electrical data.
• Suitable materials for seawater systems, according to Gianneschi documentation.
• Series designed for continuous service, typical of onboard technical systems.

Comparison with the removed component

• Check that the requested model matches CB-20-87 / 01CB20G102.
• Check electrical compatibility: 230 V – 50 Hz – single-phase.
• Evaluate connections and dimensions based on the existing pump (data not included in this sheet).
• Remember that pumps of the CB series are not self-priming must be installed below the liquid level.

Spare parts and maintenance

For spare parts or replacements requests, always provide:

• brand: Gianneschi,
• series: CB,
• model: CB-20-87,
• supplier code: 01CB20G102.

This helps avoid similar but incompatible variants.

FAQ – Frequently Asked Questions

What is the product code of the Gianneschi CB-20-87 pump on this datasheet?

The supplier product code indicated for this version is 01CB20G102.

What power supply does the EL/pump CB-20-87 require?

The pump is configured for 230 V 50 Hz power supply, with single-phase motor (1Ph).

What is the rated power indicated for this pump?

The rated power indicated on the datasheet is 0.25 kW.

For which fields is the CB-20-87 indicated?

Based on the product category, it is suitable for seawater circulation applications and onboard plant engineering in the nautical field.

How can I check compatibility with my system?

It is recommended to compare the code CB-20-87 and code 01CB20G102 with the manufacturer's technical documentation or with the installed pump, also checking the power supply (230 V, 50 Hz, 1Ph) and system requirements.