Self-priming electric pump Gianneschi CP 20 G (code 01ACP202GW)

For onboard systems – bilge, fire fighting, seawater, diesel and technical services

The self-priming electric pump Gianneschi CP 20 G is a model of the series CP, designed for nautical and plant applications that require reliability, self-priming capability and compatibility with typical onboard liquids.
The structure with side channel and liquid ring ensures quick priming and effective management of start cycles, even with initially empty suction piping.

This version is configured with 230 V single-phase motor – 50/60 Hz.
Manufacturer code: 01ACP202GW.

Main features

• Technology liquid ring self-priming, with self-priming capacity up to 8 m vertical (standard CP data).
• Easy start: after the first filling, the pump automatically primes even with empty suction.
• Materials designed for marine applications.
• Compact dimensions, useful for installation in limited technical spaces.

Construction and materials

Components made according to the specifications of the Gianneschi CP series:

• Pump body: bronze
• Impeller: bronze (star type)
• Shaft: stainless steel AISI 316
• Mechanical seal: ceramic / graphite / stainless steel (high quality)
• Motor insulation: Class F
• Degree of protection: IP55
• Motor available in: 230 V 1~ 50 Hz (version in question)

Electrical data of version 01ACP202GW

• Power Supply: 230 V single-phase
• Frequency: ) at
• Power consumption: 0.37 kW
• Motor speed: 2800 rpm (50 Hz)

Hydraulic performance (50 Hz – data from Gianneschi datasheet)

Model CP 20 G – 0.37 kW – 2800 rpm

• Flow rate: up to 60 L/min
• Pressure / total head: max 14 m H₂O
  (performance curves: 14 → 3.5 m H₂O on increasing flow)

Dimensions and connections

(Gianneschi catalog data – indicative measurements in mm)

• Dimensions (a × b × c): 32 × 63 × 100 mm
• Total length (f): 260 mm
• Height (h): 143 mm
• Suction/discharge connections: 3/4’’ – 3/4’’ BSP
• Weight: 6.5 kg

Typical onboard applications

The CP 20 G is suitable for numerous onboard services thanks to its self-priming capability and marine-grade materials:

• Bilge
• Firefighting
• Seawater supply
• Ballast
• Fresh/salt water circulation
• Diesel transfer
• Grey water discharge

Usage and installation instructions

• Fill the pump body only at the first start-up or after long periods of inactivity.
• The pump self-primes automatically on subsequent starts.
• È recommended install a filter and a non-return valve (check valve) on the suction line (direct indication from Gianneschi).
• Check power supply compatibility: 230 V 1~.
• Keep the installation area accessible for inspections and maintenance.

Product identification

• Manufacturer: Gianneschi Pumps and Blowers S.R.L.
• Model: CP 20 G
• Manufacturer code: 01ACP202GW
• Internal SKU: GIA000000015
• Warranty: 2 years (as per general sales conditions)

FAQ – Frequently Asked Questions

What is the manufacturer code of the CP 20 G pump?

The supplier product code (Supplier product code) is 01ACP202GW, useful for identification, assistance, and spare parts.

What power supply does this electric pump require?

This version is 230V single-phase and operates at 50/60 Hz.

Which materials are suitable for the body, impeller, and shaft?

The pump body and impeller are made of bronze; the shaft is made of AISI 316 stainless steel. The mechanical seal is made of ceramic, graphite, and stainless steel.

For which onboard applications is it suitable?

It is suitable for bilge, fire fighting, seawater supply, ballast, seawater/freshwater circulation, diesel fuel and grey water, according to system configuration.

What warranty is provided?

A two-year warranty is provided, according to the general terms and conditions of sale.