Rubber filter diaphragms for tower press filters

Overview
Technical data

Extend Diaphragm’s Lifetime

Roxia rubber diaphragms for tower press filters combine professional moulding manufacturing and benefits of more than 40 years of experience in elastomer technology and high stressed rubbers. Each Roxia diaphragm is fully moulded, made with one pressing, resulting in smooth transitions and high quality. We focus on product advancement to extend lifetime and filter availability.

Improved functionality and extended lifetime

Roxia diaphragms for tower press filters have improved moulding. We use only one homogenous mould to get the best results and professional finishing. This and other improvements are based on valuable practical experience from the field and professional elastomer knowledge. The natural rubber (NR) compound is the most optimal for heavy duty filtration processes to endure immense pressures and have a longer lifetime.

To make overall better diaphragms and extend lifetime, several other improvements have been made. Diaphragm areas against pressing air/water outlet and feed inlet are now reinforced and therefore more durable. Grooves and pipes secure free air/water outlet, improving diaphragm’s functionality. All improvements contribute to better filter availability.

Diaphragm areas against pressing air/water outlet and feed inlet are now reinforced and therefore more durable.

Roxia diaphragm 6 m² tower press filter plate size. Other sizes are available as well.

Available sizes and materials of Roxia rubber diaphragms

Choose from diaphragms for 1,6 m² (flat and cupped), 2,5 m² and 6 m² tower press filter plate sizes. Four different rubber compounds are available: IIR, NR, NBR and EPDM. See datasheet for more information.

Click here to see the mechanical properties of NR and NBR. Contact us to check mechanical properties of IIR and EPDM.

Roxia diaphragm 6 m² tower press filter plate size.
Other sizes are available as well.

Diaphragms for PP filter plates

Roxia also offers pressing diaphragms suitable for filter plates made of polypropylene (PP). PP filter plates are mainly used in chemical industry, hydro-metallurgy and starch filtration. The reason to use PP plates instead of steel in those applications is mainly in better chemical resistance.

The diaphragm’s material is still rubber but there are a couple of structural differences when compared to steel plates:

When we are dealing with PP filter plates, the diaphragm’s edge also functions as the filter plate seal.
Diaphragms are fitted differently to the polypropylene filter plates. They are fixed into the groove at the bottom of the plate. Because of that another, separate part called feed shoe is needed to lead the slurry into the filtration chamber.

Feed Shoe

Feed shoe is a separate, integral part for the PP filter plates. Because the pressing diaphragm is fixed directly to the filter plate, slurry could not enter inside the chamber without the feed shoe.

Feed shoe therefore lifts the diaphragm in a specific spot and feeds the slurry inside the filtration chamber. The feed shoe has an additional Feed Shoe Seal on the bottom to seal the filtration chamber in that specific area.

Roxia diaphragms for tower press filters have improved moulding.

Available as standalone spare part

Diaphragms for PP filter plates, feed shoes and feed shoe seals are directly connected to each other. They often do not have the same lifetime but usually feed shoe is sold together with seal in a package. This is the reason why Roxia can deliver the feed shoe seal or the diaphragm as a separate spare part. Contact us to get more information about the filter spares.

Roxia Pressing Diaphragms for Tower Press Filters

PRESSING DIAPHRAGMS FOR 1,6 M2 PLATE, CUP

Roxia item	Description	~Weight, kg	OEM item
*FI10894-NR1	Pressing Diaphragm, 1,6m2, Cup, NR	14	P24412/NR
*FI10894-IIR1	Pressing Diaphragm, 1,6m2, Cup, IIR (Butyl)	14	P210148/IIR
*FI10894-NBR1	Pressing Diaphragm, 1,6m2, Cup, NBR	16	P28510/NBR
*FI10894-IR1	Pressing Diaphragm, 1,6m2, Cup, IR	14
FI10000-NR1	Pressing Diaphragm, 1,6m2, Cup, NR	14	P24412/NR
FI10000-IIR1	Pressing Diaphragm, 1,6m2, Cup, IIR (Butyl)	14	P210148/IIR
FI10000-EPDM1	Pressing Diaphragm, 1,6m2, Cup, EPDM	14	P24412/EPDM
FI10000-NBR1	Pressing Diaphragm, 1,6m2, Cup, NBR	16	P28510/NBR

PRESSING DIAPHRAGMS FOR 1,6 M2 PLATE, FLAT

Roxia item	Description	~Weight, kg	OEM item
*FI10165-NR1	Pressing Diaphragm, 1,6m2, Flat, NR	14	P314396/NR
*FI10165-IIR1	Pressing Diaphragm, 1,6m2, Flat, IIR (Butyl)	14	P314396/IIR
*FI10165-NBR1	Pressing Diaphragm, 1,6m2, Flat, NBR	16	P314396/NBR
*FI10165-IR1	Pressing Diaphragm, 1,6m2, Flat, IR (Isopren)	14	P314396/IR
FI10004-NR1	Pressing Diaphragm, 1,6m2, Flat, NR	14	P314396/NR
FI10004-IIR1	Pressing Diaphragm, 1,6m2, Flat, IIR (Butyl)	14	P314396/IIR
FI10004-EPDM1	Pressing Diaphragm, 1,6m2, Flat, EPDM	14	P314396/EPDM
FI10004-NBR1	Pressing Diaphragm, 1,6m2, Flat, NBR	16	P314396/NBR

PRESSING DIAPHRAGMS FOR 1,6 M2 PP-PLATE

Roxia item	Description	~Weight, kg	OEM item
*105475-NR1	Pressing Diaphragms for 1,6m2, PP-plate, NR	16	H1895184/NR
*105475-NR1	Pressing Diaphragms for 1,6m2, PP-plate, IIR	16	H1895184/IIR
*105475-NBR1	Pressing Diaphragms for 1,6m2, PP-plate, NBR	18	H1895184/NBR
*105475-IR1	Pressing Diaphragms for 1,6m2, PP-plate, IR	16	H1895184
*105475-IR1	Pressing Diaphragms for 1,6m2, PP-plate, NR	16	H1895184/NR
106172-EPDM1	Pressing Diaphragms for 1,6m2, PP-plate, EPDM	16	H1895184/EPDM

PRESSING DIAPHRAGMS FOR 2,5 M2 PLATE

Roxia item	Description	~Weight, kg	OEM item
*FI10340-NR1	Pressing Diaphragm, 2,5m2, NR	25	F500005/NR1
*FI10340-IIR1	Pressing Diaphragm, 2,5m2, IIR	25	F500005/IIR1
*FI10340-EPDM1	Pressing Diaphragm, 2,5m2, EPDM	25	F500005/EPDM

PRESSING DIAPHRAGMS FOR 6,0 M2 PLATE

Roxia item	Description	~Weight, kg	OEM item
*FI10696-NR1	Pressing Diaphragm, 6,0m2, NR	45	P211838/NR
*FI10696-IIR1	Pressing Diaphragm, 6,0m2, IIR	45	P211838/IIR
*FI10696-NBR1	Pressing Diaphragm, 6,0m2, NBR	50	P211838/NBR
*FI10696-IIR1	Pressing Diaphragm, 6,0m2, IR	45	P211838/IR
FI10008-NR1	Pressing Diaphragm, 6,0m2, NR	45	P211838/NR
FI10008-IIR1	Pressing Diaphragm, 6,0m2, NR	45	P211838/NR
FI10008-EPDM1	Pressing Diaphragm, 6,0m2, EPDM	45	P211838/EPDM1

*Recommended option
For mechanical properties of rubbers, please contact us.

Information without engagement. All rights to changes without prior notice reserved.

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Spare part Hydraulics

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Spare part Feed hoses for complete filter plate pack

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Spare part Filter Vats

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Rubber Diaphragms

Cost-effective​

Longer lifetime

Most optimal natural rubber (NR) compound

Extend Diaphragm’s Lifetime

Improved functionality and extended lifetime

Available sizes and materials of Roxia rubber diaphragms

Diaphragms for PP filter plates

Feed Shoe

Available as standalone spare part

Roxia Pressing Diaphragms for Tower Press Filters

PRESSING DIAPHRAGMS FOR 1,6 M2 PLATE, CUP

PRESSING DIAPHRAGMS FOR 1,6 M2 PLATE, FLAT

PRESSING DIAPHRAGMS FOR 1,6 M2 PP-PLATE

PRESSING DIAPHRAGMS FOR 2,5 M2 PLATE

PRESSING DIAPHRAGMS FOR 6,0 M2 PLATE

Spare part Plate Seals for Tower Presses

Spare part Complete plate packs

Spare part Filter cloths

Spare part Rubber Diaphragms

Spare part Filter plates and filter frames

Spare part Rollers and scrapers

Spare part Mounting components for filter plate pack

Spare part Hydraulics

Spare part Feed hoses for complete filter plate pack

Spare part Filter Vats

Spare part Grids

Spare part Didn’t find what you were looking for?

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