Inflation and Pressure Relief Valves for RIBs

Inflation and pressure relief valves for RIB tubes

A RIB tube has two types of valve. The inflation valve is used to inflate and deflate each compartment, with a foot pump or an electric pump. The pressure relief valve (or overpressure valve) opens by itself when the internal pressure goes above its setting, then closes again: it protects the fabric and the glued seams when the air expands in the sun or after over-inflation.

These valves are made by CEREDI Nautica, an Italian manufacturer of accessories for inflatable boats and RIBs.

Which valve should I choose?

Why fit a pressure relief valve?

In the sun, the air inside the tube heats up and expands: the pressure can rise well above the inflation pressure. The relief valve lets the excess escape and then closes again, which avoids fatiguing the glued seams and the fabric. It is also a safeguard against over-inflation with an electric pump.

Follow the inflation pressure given by your boat's manufacturer, usually between 200 and 250 mbar (about 3 to 3.6 psi). The CEREDI valve is set above that, at 330 mbar.

Replacing a tube valve

• Fully deflate the compartment before starting.
• Note the model and measure the diameter of the fitted valve: the new valve must match its housing.
• A leaking valve does not always need replacing: first check its seal and tightness, and clean its seat.
• For a damaged housing or a valve to fit on a new tube, call on a RIB repairer.

To inflate faster and to the right pressure, read our electric pump buying guide.

Frequently asked questions

My pressure relief valve lets air out: is that normal?

Yes, if the tube is very full or heated by the sun: it releases the excess and then closes again. If it leaks at normal pressure, clean it or replace it.

What inflation pressure for a RIB?

The one given by the manufacturer, in the manual or near the valves. It is usually between 200 and 250 mbar, about 3 to 3.6 psi.

Will these valves fit my Zodiac?

They are designed for Zodiac-type inflatable boats and RIBs. Compare the diameter of your current valve with the one on the product page and, if in doubt, send us a photo through the contact page.