Mechanical seal – code: RBMA658 – Gianneschi Pumps and Blowers

Gianneschi mechanical seal – code RBMA658

La mechanical seal with code RBMA658 is an original/reference spare part for applications on Gianneschi pumps and components, designed for maintenance and restoration of the correct sealing of the pumping assembly. In the nautical and onboard plant sector, the mechanical seal is an essential functional element: it helps manage the separation between the rotating part and the static part, reducing the risk of leaks and keeping the system in proper operating conditions.

Product identification

• Type: Mechanical seal
• Supplier product code: RBMA658
• Supplier: Gianneschi pumps and blowers S.R.L.
• Recommended application: BMA65

Typical applications

The mechanical seal RBMA658 is suitable for BMA65. In nautical and onboard plant contexts, mechanical seals are commonly used on pumps dedicated to the management of service fluids and auxiliary circuits, where operational continuity and proper sealing are central aspects of maintenance.

When to consider replacement

• Leak traces near the sealing area.
• Revision interventions of the pump or scheduled disassemblies.
• Preventive maintenance according to internal procedures or the manufacturer's instructions for the system.

Checks before ordering

For a correct choice, it is advisable to always verify:

• the code RBMA658 reported on documentation, spare parts list or labeling;
• the model BMA65 indicated as application;
• any internal maintenance notes (previous overhauls, replacements already made, system variants).

In case of doubt, it is preferable to compare the code with the technical documentation of the unit or with the removed spare part, avoiding purchases “by similarity”.

General installation guidelines

The installation of a mechanical seal requires attention and operational cleanliness. Without entering specific procedures (which depend on the model and the manufacturer's instructions), some general good practices include:

• working on clean surfaces and components free of contaminants;
• avoiding impacts or scratches on the mating surfaces during disassembly and reassembly;
• following the procedures and tightening torques provided by the pump manufacturer;
• performing a final visual check of the assembly before putting it back into service.

For interventions on onboard systems, it is also good practice to plan the activity considering accessibility, safety, and the possibility of functional testing at the end of the work.

Notes on returns and identification

Being technical spare parts, identification by code is essential. Before proceeding with the order, make sure that the reference RBMA658 is the one required for your application. If you need to manage multiple units or multiple pumps, it can be useful to note the code in the maintenance log or in the onboard spare parts list for future needs.

Quick summary

• Product: Mechanical seal
• Code: RBMA658
• For: BMA65
• Brand/Supplier: Gianneschi pumps and blowers S.R.L.

FAQ – Frequently Asked Questions

What is the RBMA658 mechanical seal used for?

It is a mechanical seal replacement used to restore the proper sealing of the pumping assembly, reducing the risk of leaks between rotating parts and static parts, according to the configuration provided by the manufacturer.

For which models is this mechanical seal suitable?

Based on the available information, the mechanical seal with code RBMA658 is suitable for BMA65.

How can I verify that RBMA658 is the right replacement?

Check the code RBMA658 on the technical documentation (parts list/manual) or compare it with the reference on the removed component. In case of doubt, avoid purchases based on similarity and refer to the code.

Is the product original Gianneschi?

The indicated supplier is Gianneschi pumps and blowers S.R.L. The main reference for identification remains the supplier product code RBMA658.

Is it possible to install it without disassembling the pump?

It depends on the system configuration and the accessibility of the pumping unit. In many cases, replacing the seal requires disassembly according to the procedures provided by the pump manufacturer.