Iris®diaphragm control valve

Iris®diaphragm control valve

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Energy saving valve for the precise and economical control at low loss of pressure of liquids and gases that can be either clean or contain particles.

Applications

Air for aeration in wastewater treatment plant
Gases
Municipal and industrial wastewater
Slurries and viscous materials
Paper pulp and fibrous suspensions
Pellets with a particle size over 0,5 mm
Sugar suspensions
Drinking water

Features

Highly precise control of the flow rate through concentric Iris® diaphragms (similar to a camera diaphragm).
Energy-saving and low-noise control valve due to its free centric passage.
Maintenance free

Facts & Figures

Nominal dimensions:	DN 25 - 400 mm
	1 - 16"
Pressure:	up to 10 bar / 150 psi
Temperature:	up to 220 °C / 428 °F
Materials:	Casing: GG, 1.4409, 1.4588
	Segments: Bz hard chrome-plated, 1.4404, 1.4529
	Special materials on request

Advantages

Energy-saving flow control
No hysteresis
Robust construction, suitable for frequent start-stop
Low pressure losses due to larger open channel
High flow capacity Cv (Kv)
Turbulence-free across the entire range of flow regulation

Operations and drives

Manual operation

Electric operation

Pneumatic operation

Brochure

New Iris® Flow Control Valve IBS

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Brochure

Iris® diaphragm control valve

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Brochure

Economical aeration flow control
with Iris® valves

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Reference

Aeration air flow control on WWTP Jena

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Reference

Aeration air flow control on WWTP Chemnitz

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Reference

Aeration air flow control at the Erdinger Moos Sewage Association

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