Disk Diffuser(MT300,235)

Membrane disk diffuser

DESIGNS

OXYFLEX – MT Membrane Disc Diffusers consist of a flat, heavily ribbed and fibreglass-reinforced polypropylene base plate and a mounted membrane (e.g. EPDM).The Membrane Disc Diffuser is manufactured in two sizes: 235 (free membrane diameter of 235 mm) and 300 (free membrane diameter of 300 mm).The base construction is a fibreglass-reinforced polypropylene disc. The membrane is form-fitted to this disc with a plastic ring made of fibreglass-reinforced polypropylene.The – MT is supplied with a robust 1“ thread connector as standard. It is also available with a ¾“ connector on request.The – MT AS design includes a clamp saddle for the assembly on round pipes our disc diffusers are equipped with a robust EPDM membrane as standard. For special requirements, the MT300 is also available with silicon membranes.The membrane has a special slot arrangement. The size and arrangement of the slots are such that the perfect oxygen transfer or minimum pressure loss is achieved for high specific loads depending on the application.All disc diffusers are available with both a fine bubble and coarse bubble membrane perforation.have a low pressure loss,are resistant against contamination,in the fine-bubble design, they produce gas bubbles with a diameter < 1-3 mm.Since, in contrast to the tube diffusers, the entire diffuser surface is on the same hydraulic level, the gas through put is even across the entire membrane surface and control range. As a result, both the service life and performance are optimised.For normal specific loads please refer to the data sheets of the relevant variant.

OXYFLEX – MT Membrane Disc Diffusers are suited for the installation on plastic or steel pipes and for all tank shapes, but they are particularly
suited for small tank volumes, grit chambers and first high loaded stages.
OXYFLEX – MT Membrane Disc Diffusers have successfully proven their capabilities in communal and industrial plants in all parts of the world.
The membrane diffuser element can easily be changed if required.
OXYFLEX – MT Membrane Disc Diffusers can be operated intermittently.
OXYFLEX – MT Membrane Disc Diffusers have a very broad control range between 0 and 15 /h.
OXYFLEX – MT Membrane Disc Diffusers achieve very high oxygen transfer rates in pure water of more than 25gO2 / x m for a flat layout and suitable water depths.

OXYFLEX MT 300/235/190 membrane disc diffusers made of EPDM are available in diameters of 300, 235 and 175mm; the silicone ones have a diameter of 235mm.

CLAMP SADDLE FIXING TYPE
Optionally, our OXYFLEX – MT diffusers can be assembled easily using our patented hinged clamp saddle.The clamp has a hinge so that it can be swung open. The clamp is inserted into the existing 20-mm diameter bore with the supply air connector (16 mm diameter) from above.Now the clamp is closed and screwed using an M8 x 65 mm hexagonal screw (10 Nm) and a self-locking nut.

Possible dimensions of the round distribution pipe:

Special steel design: DN 50 / 60.3 mm, DN 65 / 76.1 mm, DN 80 / 88.9 mm

Plastic design: OD 63 mm, OD 75 mm / OD 90 mm / OD 110 mm
(Further sizes are available on request.)

Diffuser Type	Standard Range [Nm³/h]	Max. permanent [Nm³/h]	Max short time [Nm³/h]
Oxyflex® MT300/12“-FB	0-6	8	10
Oxyflex® MT300/12“-CB	0-12	14	16
Oxyflex® MT235/9“-FB	0-4	5	6
Oxyflex® MT235/9“-CB	0-8	10	12