RGXII Ductile Iron Valves for Sewage & Effluent

The world leader in Air Valves Technology


An operating concept proven unsurpassed for air/gas release, vacuum protection and surge alleviation

The RGXII offer the same basic operating principles as the well-known and widely accepted RGX valve. It is however a more affordable approach in a Fusion Bonded Epoxy Powder coated ductile iron body and shorter overall height. The valve is available in stainless steel on request.

The RGXII maintains the unique operating concept that offers superior air/gas release, vacuum protection and surge alleviation.

The Series RGXII is an easily maintainable valve and has a wider body design that improves it’s resistance to high fat applications.

Key Features

Advantages of Vent-O-Mat RGXII “Anti-surge” Air Release & Vacuum Break Valves Are:

Vacuum Protection
Large orifice diameters equal the nominal size of the valve to ensure the least possible resistance to the intake of air and consequently the least possible negative pressure within a draining pipeline.

Discharge Performance
Effective pipeline de-aeration is ensured, regardless of pipeline flow conditions, via either of the 2 discharge orifices.

All selection data has been sustantiated by third party testing and can therefore be confidently referenced.

Surge Protection
VENT-O-MAT Series RGXII is supplied as standard with an integral surge alleviating device to automatically dampen surge pressures in pipelines.

VENT-O-MAT series RGXII economically offers the high quality construction and materials for a sewage air valve.

VENT-O-MAT Series RGXII “Anti-Surge” Sewage Air Release and Vacuum Break Valves are available in nominal sizes of DN50 (2″) to DN200 (8″) and for maximum operating pressure of PN10 (150psi),

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DFC announces 2021 Price Adjustments, please contact our office for further information.” +27 11 7480200 or Email belinda.rossouw@dfc.co.za