Bilge pump 4 membranes 12 V 17 L – code: 16.525.12 – Osculati

12 V 4-diaphragm bilge pump Osculati (code 16.525.12)

The 12 V 4-diaphragm bilge pump Osculati, identified by code 16.525.12, is a solution designed for onboard applications where a practical diaphragm pump suitable for various system uses is needed. It is indicated as a bilge pump and, depending on system requirements, can also be used for grey water discharge from collection sumps and as a water supply pump in silent toilets.

The membrane project is appreciated in the nautical field for controlled fluid management and for installation in technical spaces. This version is supplied with a set of fittings and suction filter with snap fitting, useful for simplifying assembly and routine maintenance operations.

Features and construction details

Operation and protections

• It can run dry without damage (a useful feature in typical bilge conditions and during priming phases).
• Protection against reverse polarity, for greater protection of the system in case of incorrect connections.

Internal components and materials

• Internal stainless steel bearings.
• Configuration with 4 valves (as indicated in the product datasheet).

Included equipment (fittings and filter)

The pump is supplied complete of fittings and suction filter, with connection system a scatto:

• 4 fittings:
  • 2 fittings of 1/2″ threaded;
  • 1 fitting straight hose outlet from 14 mm;
  • 1 fitting 90° hose outlet from 14 mm.
• Suction filter included, with snap connection.

Data available for installation and dimensions

• Mounting height: up to m 1.80 above level.
• Dimensions: 240x105x95 mm.
• Weight: 2.8.
• Replacement filter: 16.533.01.

Typical onboard applications

This pump is designed for use in nautical and onboard systems, where liquid management requires reliable and easy-to-integrate components. In particular, the pump can be used in:

• Bilge: for drainage and water management operations in technical areas.
• Grey water discharge: suitable for discharge from collection wells, in configurations compatible with the existing system.
• Water load for Silent toilets: as a feed pump, where provided by the system.

The presence of threaded fittings and hose connectors (straight and 90°) helps manage different layouts, facilitating adaptation to existing lines or new installations.

Operational advantages

Neater installation and simplified maintenance

The equipment with intake filter and connection a scatto is useful to speed up some typical onboard activities, such as inspection and cleaning of the suction point. Furthermore, the availability of the replacement filter 16.533.01 allows planning maintenance with dedicated spare parts.

Greater tolerance to usage conditions

• The ability to run dry not getting damaged is a plus in situations where suction may be intermittent or during commissioning.
• The protection against reverse polarity adds a level of electrical safety during connection.

Flexibility in connections

The included fittings (threaded and hose barb) allow you to choose the configuration best suited to the available space and the routing of the pipes. The fitting at 90° is particularly useful when the outlet needs to be oriented to avoid sharp bends or interference with bulkheads and nearby components.

Usage and installation notes

General indications

• Check the compatibility 12 V power supply and respect polarity, even if the pump has reverse polarity protection.
• Install the pump in an accessible area to allow periodic checks of the intake filter and connections.
• Use the most suitable fitting among those provided (threaded or hose barb) based on the existing line and the type of connection planned.

Filter and routine maintenance

To keep the system efficient, it is advisable to periodically check the suction filter and clean it when necessary. In case of replacement, refer to the replacement filter 16.533.01.

Dimensions and positioning

Before installation, consider the dimensions 240x105x95 mm and plan the pipe routing to avoid stress on the fittings. The datasheet indicates a’mounting height up to 1.80 m above level: this information can be useful to evaluate the position relative to the liquid level and the system layout.

Note: for the final choice and correct integration into the onboard system, always refer to the system requirements and good nautical installation practices.

FAQ – Frequently Asked Questions

Can this pump run dry?

Yes. The product description indicates that it can run dry without damage, a useful feature in bilge applications and during priming.

Is the pump only suitable for bilge use?

In addition to use as a bilge pump, it is also suitable as a pump for draining grey water from collection sumps and as a water supply pump in silent toilets, depending on the system configuration.

Which fittings are included in the package?

4 fittings are included: 2 threaded 1/2" fittings, 1 straight 14 mm hose connector, and 1 90° 14 mm hose connector. The suction filter with snap fitting is also included.

Is there protection against incorrect electrical connections?

Yes. The pump is equipped with reverse polarity protection.

What is the code of the replacement filter?

The replacement filter indicated in the datasheet is code 16.533.01.