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RC Ductile Valves For Irrigation Systems

The world leader in Air Valves Techonology


RC Air Release Valves for Irrigation

The RC is a heavy duty cast valve specifically designed for an irrigation environment where the air valve may be exposed to a variety of elemental conditions.

The RC is a Cast ductile Iron valve that is fully epoxy coated. Available as a DN25 Single acting small orifice air valve, or a DN50 Double Acting Air Valve. The small compact robust valve is ideal for simpler applications where basic air release and vacuum breaking requirements are required.

The basis of the Vent-O-Mat design is in the understanding of the physical laws that govern air valve and pipeline operation. Reaction to pipeline dynamics is therefore instantaneous and protection provided is relevant to the pipeline’s needs.

Double Acting “Anti-Shock” Air Release and Vacuum Break Valve

The DN50 Incorporates the Trade Mark Vent-O-Mat “Anti-Shock” Technology marrying it with the patented diaphragm operated cartridge which allows full discharge through a 32 mm port in both pressurized Air Release and “Anti-Shock” Air Discharge Modes through a and12 mm 3 port.

Single Acting Small Orifice Air Release valve

The DN25 mm and DN15 mm Single Small orifice Valve use the same diaphragm technology to offer the best possible discharge under pressurized discharge conditions.

The DN50 RC offers full port vacuum breaking under draining or scouring conditions.



The Vent-O-Mat Series RPS Valve is specially developed as a Lightweight Air Release Valves for the irrigation Market.

The RPS is available in a DN50 mm Double Orifice Valve and DN25 mm and DN15 mm Single Small Orifice Air Release valves.

The RC design ensures effective de-aeration of pipelines the DN25 offers pressurized air release under pipeline operating conditions. The DN50 is an effective Double acting Air valve discharging air under filling and Pressurized conditions.

  • Simple efficient action
  • Reduces water hammer
  • Multifunction versatile product
  • Ensures maximum protection
  • Unique self-cleaning operation
  • UV stabilised
  • Robust lightweight and compact
  • Replaces any existing valves