Self-priming multistage ACM 311 BT, 230/400 V, 1.1 kW – code: 01AAM333 – Gianneschi Pumps and Blowers
Self-priming multistage pump ACM 311 BT 230/400 V – 1.1 kW (code 01AAM333) – Gianneschi Pumps and Blowers
The Gianneschi ACM 311 BT is a self-priming multistage electric pump from the ACM 50Hz series, designed for nautical and plant applications where the handling of liquids with air presence in suction is required. The model identified by code 01AAM333 is supplied in three-phase 230/400 V version with an installed power of 1.1 kW.
The ACM series uses a liquid ring system with a star impeller and is designed to guarantee self-priming capacity up to 8 vertical meters, as declared by the manufacturer. After the first filling of the pump body, priming occurs automatically even with an empty suction pipe.
Main features
Type
- Self-priming multistage electric pump
- Series: ACM 50Hz
- Version: ACM 311 BT
- Product code: 01AAM333
Power supply and motor
- Power supply: 230/400 V
- Frequency: 50 Hz
- Installed power: 1.1 kW
- Motor speed: 1450 rpm
- Insulation class: F
- Protection: IP55
Self-priming capacity
The ACM series is described by Gianneschi as a liquid ring self-priming pump with high priming capacity, up to:
- 8 m of vertical suction
The manufacturer specifies that:
- at first start-up it is necessary to fill the pump body;
- after long periods of inactivity, a new filling may be required;
- subsequently, the pump can self-prime even with an empty suction pipe.
Construction materials
The ACM 311 BT is made with materials suitable for marine and plant applications:
- Pump body in bronze
- Bronze impeller
- Shaft in AISI 316 stainless steel
- Mechanical seal in ceramic / graphite / stainless steel
This construction configuration is indicated by the manufacturer for applications with:
- fresh water;
- sea water;
- liquids with high air content;
- onboard technical services.
Declared performance
Performance measured according to EN ISO 9906.
ACM 311 BT – 1.1 kW – 1450 rpm
| Flow rate | Head |
|---|---|
| 50 l/min | 30 m |
| 60 l/min | 27 m |
| 70 l/min | 24 m |
| 80 l/min | 20 m |
| 90 l/min | 17 m |
| 100 l/min | 14 m |
| 110 l/min | 11 m |
| 120 l/min | 8 m |
| 130 l/min | 5 m |
The data reported refer to the three-phase 50 Hz version.
Typical applications
The ACM series is recommended by the manufacturer for:
- bilge pumping;
- firefighting systems;
- chain washing;
- diesel transfer;
- water system supply;
- handling liquids with a high air content.
Thanks to the self-priming configuration, the ACM 311 BT is suitable for nautical and technical installations where the suction circuit can empty or operate with the presence of air.
Operational advantages
Self-priming system
The liquid ring technology allows the pump to automatically resume priming after the first filling of the pump body.
Marine environment construction
Bronze and AISI 316 stainless steel are materials commonly used in the nautical field for corrosion resistance and operational reliability.
Multistage configuration
The multistage structure allows for high heads with smooth and stable operation.
IP55 protected motor
The IP55 protection rating and class F insulation make the motor suitable for technical installations and service environments.
Installation and use
For correct operation, Gianneschi recommends:
- installation of a filter on the suction line;
- use of a check valve to prevent water backflow;
- verification of the correct electrical configuration 230/400 V;
- inspection of the pipes to limit air infiltration in suction.
Before installation it is always necessary to verify:
- fluid compatibility;
- system sizing;
- actual operating conditions.
Identifying data
| Feature | Value |
|---|---|
| Model | ACM 311 BT |
| Product code | 01AAM333 |
| Type | Self-priming multistage |
| Alimentazione | 230/400 V |
| Power | 1.1 kW |
| Frequency | 50 Hz |
| Speed | 1450 rpm |
| Motor protection | IP55 |
| Isolamento | Class F |
| Brand | Gianneschi Pumps and Blowers |
Warranty
- Warranty: 2 years
(according to the manufacturer's general sales conditions)
FAQ – Frequently Asked Questions
What is the product code of the ACM 311 BT pump?
The supplier product code is 01AAM333. When ordering or requesting spare parts, you can also use the SKU GIA000000253.
What electrical power supply does the ACM 311 BT support?
The pump is indicated in 230/400 V version. Verify the correct system configuration according to the manufacturer's instructions.
What is the power of the pump?
The power reported for this model is 1.1 kW.
In which fields is a self-priming multistage pump like this normally used?
It is typically evaluated for technical uses in the nautical field and onboard systems, particularly for service systems where the self-priming characteristic can be useful.
Where can I find data such as flow rate and head?
This datasheet does not include flow rate, head, and characteristic curves. For sizing, it is advisable to consult the Gianneschi technical documentation related to the ACM 311 BT model (code 01AAM333).
| Supplier | Gianneschi pumps and blowers S.R.L. |
| Supplier product code | 01AAM333 |
13 reviews for Multistadio autoadescante ACM 311 BT, 230/400 V, 1,1 kW – codice: 01AAM333 – Gianneschi Pumps and Blowers
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Emanuela Floris (verified owner) -
I purchased the ACM 311 BT self-priming multistage pump (230/400 V, 1.1 kW) for the onboard system and it proved to be a solid and well-built product. Quick start-up and priming without issues, with stable flow even after several starts. Timely delivery and adequate packaging. Overall, Gianneschi quality confirmed.
Franco Orsini (verified owner) -
I purchased the ACM 311 BT self-priming multistage pump (01AAM333) for a 230/400 V system: product arrived well packaged and as described. The pump is robust and priming is quick, with good pressure and flow for the intended use. Customer service was available and accurate with information.
Giorgio Mazza (verified owner) -
Gianneschi ACM 311 BT self-priming multistage pump (1.1 kW) installed on a 230 V system: quick start-up and priming without problems. Body and components seem to be of good quality and suitable for humid/marine environments, with careful finishes. Flow and pressure in line with what was declared, low vibrations and smooth operation. Shipping and packaging ok.
Elena Colombo (verified owner) -
Recommended by other boaters, I confirm: the ACM 311 BT self-priming pump proved reliable onboard. Simple installation on 230 V, good flow and quick start-up even after a few days of inactivity. Low noise and robust materials. So far fully satisfied.
Cesare Damiani (verified owner) -
Purchase and shipping handled quickly and accurately. The Gianneschi ACM 311 BT pump (1.1 kW, 230/400 V) arrived well packaged and as described. Simple installation and smooth operation: fast priming and good flow for onboard use. Overall, efficient service from start to finish.
Emma Neri (verified owner) -
I purchased the ACM 311 BT self-priming multistage pump (1.1 kW, 230/400 V) for an onboard system and so far it has proven reliable. Quick start-up even after periods of inactivity and stable flow. Gianneschi support was available and clear in assisting with connection and commissioning.
Luigi Martinelli (verified owner) -
Qualified and available technical support: they helped me choose the ACM 311 BT self-priming multistage pump and clarify the 230/400 V connection and start-up. Robust, quiet product with good flow, installation without problems.
Giovanni Russo (verified owner) -
I installed the ACM 311 BT self-priming multistage pump (230/400 V, 1.1 kW) on an onboard water supply system and it proved reliable. Quick start-up even after periods of inactivity, good flow and constant pressure, with low noise. Gianneschi materials and finishes as expected; connections and commissioning without problems. Shipping and packaging ok.
Roberta Ferri (verified owner) -
Purchased the ACM 311 BT self-priming multistage pump (01AAM333) for an onboard system: robust and well-built pump, quick priming and stable flow. Fast shipping and available support for clarifications on 230/400 V connection. Reliable supplier for boating.
Franco Montanari (verified owner) -
I purchased the ACM 311 BT self-priming multistage pump (230/400 V, 1.1 kW) for an onboard system and the specifications on the website match what I received. Well-built product, simple installation and start-up without problems. Shipping and packaging ok.
Raffaele Gentile (verified owner) -
Gianneschi ACM 311 BT self-priming pump well built and detailed. Installed on a 230 V system for seawater/bilge service: quick start-up and stable priming even after stops. Quiet 1.1 kW motor and low vibrations; solid connections and finishes. Quality product, consistent with Italian tradition.
Maurizio Vitale (verified owner) -
Gianneschi ACM 311 BT pump as described (01AAM333). Careful packaging and fast shipping: in my case delivery even arrived on a Saturday. Solid and well-finished product, recommended.
Ciro De Rosa (verified owner) -
Installed as a self-priming multistage pump for a 230 V system: started immediately without problems and quick priming. Flow is stable and the pump is quieter compared to the one I had before. Materials and finishes seem of good quality, packaging ok and instructions clear. So far very satisfied with the purchase.