Iris diaphragm control valve
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.
Please describe to us your requirements with a description of the fluid to be pumped.
Our Iris® Team stays at your disposal for enquires and any information you may need under following contact address:
iris@eggerpumps.com
Facts & Figures
| Nominal dim. | DN 25 - 400 mm |
| 1 - 16" | |
| Operating press. | up to 10 bar / 150 psi |
| Operating temp. | up to 220 °C / 428 °F |
| Materials: | Casing: GG, 1.4409, 1.4588 |
| Segments: Bz hard chrome-plated, 1.4435, M340, 1.4529 | |
| Special materials on request |
Advantages
- Energy-saving flow control
- No hysteresis
- Robust construction, suitable for frequent stop-start
- 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 for the Iris® diaphragm control valve
Manual operation
Electric operation
Pneumatic operation
In practice
Typical application of an Iris® diaphragm control valve in a wastewater treatment plant. Energy-saving control of the entry of air into the aeration tank.
