Complete mechanical seal, for CB 22 G – code: RGBG2205 – Gianneschi Pumps and Blowers

Complete mechanical seal for Gianneschi CB 22 G (code RGBG2205)

Original spare part intended for the maintenance of Gianneschi pumps, the tenuta meccanica completa with code RGBG2205 is designed for use on CB 22 G. In the nautical and onboard plant sector, the mechanical seal is an essential component for the correct functioning of the pump: it helps manage the separation between the rotating part (shaft) and the pump body, reducing the risk of leaks in the coupling area.

This version is suitable for shaft diameter 22 and includes counterface diameter 37. The declared materials include AISI316 e Viton, a typical combination for applications where corrosion resistance and reliable sealing are required in the presence of fluids and variable operating conditions.

Code and identification

• Manufacturer/Supplier: Gianneschi Pumps and Blowers S.R.L.
• Supplier product code: RGBG2205
• Type: tenuta meccanica completa
• Declared compatibility: Gianneschi CB 22 G

Reported dimensions

• Shaft diameter: 22
• Counterface diameter: 37

Indicated materials

• Outer part: AISI316
• Elastomers: Viton

Typical applications (nautical and plant engineering)

The mechanical seal is a component subject to wear and may require replacement during ordinary or extraordinary maintenance interventions. This spare part is designed for contexts where Gianneschi pumps of the indicated series are used onboard or in technical plants, for example:

• scheduled maintenance of pumps installed on boats and work units;
• functional restoration in case of leaks near the shaft;
• interventions on pumps used in service circuits and auxiliary systems.

In general, replacing the mechanical seal is among the operations that help maintain the pump in proper operating conditions, reducing plant downtime and repeated interventions due to leaks or deterioration of sealing components.

Use, replacement and operational notes

When to consider replacement

In the presence of signals such as leaks in the shaft area, abnormal noise, or the need for pump overhaul, the mechanical seal is one of the components to check. Replacement can be carried out during a complete overhaul or as a targeted intervention, depending on the general condition of the pump and the system conditions.

General assembly instructions (without replacing the manufacturer's instructions)

• Operate with the pump stopped, isolated, and safely, following plant procedures.
• Verify that shaft diameter 22 e counterface 37 they correspond to the existing configuration.
• Check the condition of the mating surfaces and the cleanliness of the seats before installation.
• During reassembly, avoid contamination (dirt, residues, abrasives) on the sealing surfaces.
• After the intervention, perform a functional check of the system according to the prescribed procedures.

FAQ – Frequently Asked Questions

Is this mechanical seal compatible with the Gianneschi CB 22 G pump?

Yes, the compatibility indicated on the sheet is for Gianneschi CB 22 G. For safety, also check the spare part code RGBG2205 and the measurements shown on the pump or in the technical documentation.

What sizes are indicated for this spare part?

The shaft diameter 22 and counterface diameter 37 are reported. It is advisable to compare these data with the actual pump configuration before purchase.

Which materials are declared in the description?

The description states external part in AISI316 and elastomers in Viton.

What does “complete mechanical seal” mean?

Indicates that the spare part is supplied as a complete mechanical seal assembly, designed for a more straightforward replacement compared to purchasing individual separate components.

How can I be sure to order the correct spare part?

The most reliable way is to check the Gianneschi RGBG2205 code and verify the measurements (shaft 22 and counterface 37). In case of doubt, collect the pump identification data and request confirmation before ordering.