FIMAR Disc PZ4 for Professional Catering Equipment

A pressure burner disc regulates the flow of gas and air in professional catering hobs, ensuring a stable, controlled flame. The disc sits within the burner assembly, where its precise aperture meters the mixture before ignition. This metering creates the consistent, high-output heat needed for rapid boiling, searing or wok cooking without hot spots or flame lift. Without a correctly sized disc, the burner either starves for air or floods with gas, leading to inefficient combustion, soot build-up and uneven cooking results.

To install the Disc PZ4, the operator first isolates the gas supply and allows the hob to cool. The existing burner cap and head are removed, exposing the seating for the disc. The PZ4 is placed into position, ensuring the aperture aligns with the gas jet. The burner head and cap are then refitted and secured. Once the gas is restored, the hob is ignited and the flame pattern checked for evenness across the burner ports. Any irregularity indicates misalignment or debris and requires the process to be repeated.

The disc is manufactured to a uniform 4 mm thickness, standardised for compatibility with FIMAR pressure burners. Its material is selected for resistance to thermal cycling and corrosion, maintaining dimensional stability across repeated heating and cooling cycles. The single control relevant to the disc is the gas valve on the hob, which adjusts the volume of gas passing through the disc's aperture and thus the intensity of the flame.

A 4 mm thickness determines the disc's fit within the burner assembly, ensuring it neither rattles nor binds when the hob is in use. This dimension also influences the disc's durability under thermal stress, preventing warping that could disrupt the gas-air ratio. The disc's footprint is minimal, occupying only the space required by the burner seating, and its weight is negligible, adding no appreciable load to the hob's moving parts.

Cleaning is limited to the disc's exterior surfaces. After the hob has cooled, the burner cap and head are removed and the disc wiped with a damp cloth to remove any carbon deposits. Abrasive pads or chemical cleaners are avoided to prevent altering the aperture's dimensions or the disc's surface finish. Regular inspection for pitting or deformation ensures continued performance and safety.

The Disc PZ4 is a direct replacement for FIMAR pressure burners and is catalogued under spare parts for professional gas hobs.