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HD270 F053 J27

Product catalog summary

Specifications:
The JetFlex® Disc Diffuser HD 270 is designed for municipal wastewater applications, operating at air flow rates of 2-6 m³/h under standard conditions, with a maximum overload rate of 10 m³/h for maintenance purposes. It functions effectively within a temperature range of 0-80°C and can operate intermittently or continuously.

Installation and Dimensions:
The diffuser features a thermoplastic header pipe with a total/effective diameter of 268/218 mm and an overall height of 60 mm. The perforated area is 0.037 m², and it includes a check valve available upon request.

Material Specifications:
The membrane is made from EPDM with a density of 1.08 ±0.03 g/cm³, tensile strength >10 N/mm², and elongation at break >400%. It is ozone resistant with zero cracks. The support plate is made from PVC, available in black or white/black.

Shipping and Storage:
Diffusers are shipped in units of 50 per cardboard, with specific pallet dimensions and weights. Storage should be in a dark, dry, ventilated space, avoiding frost, heat, and UV exposure. Rubber parts should not be stored for more than one year before installation.

Maintenance:
Regular maintenance involves cleaning with formic acid and using maximum air flow for short durations to maintain diffuser condition. The membrane's lifetime depends on various factors, with reference plants achieving over five years.

Performance:
The Standard Oxygen Transfer Efficiency (SOTE) is tested under specific conditions, with a submergence depth of 4.20 m and water temperature of 16.3°C. Headloss tests show tolerances of +/- 5%.

Catalog excerpts

Data Sheet JetFlex® Disc Diffuser - HD 270 Jaeger Group of Companies

Open the catalog to page 1

Installation drawing 3/4“–NPT Ø31,8 Grommet (rubber) Ring Support plate Thermoplastic header pipe Dimensions Hight Diameter total/effective Overall height membrane top of tube Perforated area Check valve Air flow Air flow rates at standard operation conditions max overload/ maintenance air flow rate Operating temperature Operation mode intermittent continuous municipal waste water of operation is highly recommended for air flow rates lower than minimum rate. air flow rate (e.g. cleaning) should not be applied longer than 10 min/day. • Numbers are for guidance only. Operating diffusers at too...

Open the catalog to page 2

Connectors to header pipe Permitted wall thickness of header tube Diameter of straightdrilled hole Universal Saddle PVC-Saddle 90 mm PVC-Saddle 110 mm Black White/Black White/Black Membrane material Type Colour Polymer Carbon black Plasticiser Others Density Tensile strength Elongation at break Tear strength Hardness Tension set Ozone resistance zero cracks Support plate material Material Additional colours Shipping unit Dimensions LxWxH Unit weight Shipping unit Pallet size Pallet weight

Open the catalog to page 3

Specifications Standard oxygen transfer efficiency (SOTE) and headloss for HD 270 F053 J27 12 Water depth Submergence depth Test media Test tank tap water bubble column Atmospheric pressure Water temperature Tank volume Tank floor area CSS,T Test conditions SOTE acc. to German Standard DWA M 209 (desorption method) Certificate ISAH, University Hanover, measuring tolerance +/- 1% Headloss internal tests tolerances +/- 5% Storage: • Diffuser and/or rubber sleeves must be stored factory-packed in a dark, dry, ventilated and dust-free storage space according to DIN 7716. Avoid frost, heat, UV/radiation,...

Open the catalog to page 4

All Jäger Umwelt-Technik GmbH & Co. KG catalogs and technical brochures

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