JOINT O RING POUR MICROMOTEUR A SPRAY REF 18010-18020-18040

The O-ring is the primary wear part in the spray circuit of Bien-Air micromotors with internal irrigation. It ensures a watertight seal between the various components of the micromotor’s hydraulic circuit, preventing any water leakage between the water supply connection and the handpiece outlet.

Without this seal in good condition, the spray loses precision, leaks outside the treatment area, or stops working entirely. Capron Podologie keeps this part in stock at all times to ensure immediate availability for practitioners, preventing downtime for their micromotors.

In internal spray (IR) micromotors, water flows through the micromotor body via a sealed circuit under low pressure. This circuit includes several mechanical joints where O-rings ensure a watertight seal. The seal compresses slightly during assembly to create a watertight barrier between the two parts it separates.

Over time, autoclave sterilization cycles (which involve repeated increases in pressure and temperature) as well as the removal and reinstallation of the handpiece gradually compress and deform the seal. Its sealing capacity decreases until it no longer functions properly.

• Visible water leakage at the junction between the micromotor and the handpiece when the spray is activated.
• Decreased spray flow: the water comes out with less force or in an irregular manner.
• Traces of moisture on the micromotor body outside the normal spray outlet area.
• Spray activates even when the handpiece is not properly attached (sign of lost pressure).

In all these cases, the seal must be replaced immediately. Continuing to use a micromotor with a faulty seal can cause water to seep into unprotected areas of the motor.

Capron Podologie recommends replacing the O-ring every 6 to 12 months under standard use (5 to 7 consultations per week), or immediately upon the slightest sign of leakage. The cost of this seal is negligible compared to the cost of repairing the micromotor due to water infiltration.

Ordering one or two replacement seals in advance is a simple precaution that prevents the instrument from being out of service in the event of a breakdown during the workday.