DISCSTAR® ST
Depth Filter Module Housing For food and industrial applications
Characteristics
The DISCSTAR® ST is a high precision stainless steel filter housing for lenticular depth filter modules, designed and manufactured for heavy duty use – 24/7. The enclosed system allows high capacity depth filtration with no drip loss (no edge leaking). A broad variety of options will promote the ideal solution for your depth filtration process.
Applications
DISCSTAR® ST series filters are made for a broad field of solid liquid separation applications, with a solid content up to approx. 1 %. Higher solid contents need precoat filtration or other technology as prefiltration. The technology is designed for high service life of filter media and equipment. Its high filtration performance and top manufacturing quality meet the high standards of beverage filtration such as; Wine filtration Beer filtration Juice filtration Tea filtration Distilled products (spirits, such as vodka, cognac, brandy, whisk(e)y, ...)
Working principle
Depth filter module(s) are placed in a sealed housing. The inside of the module core is connected to the filtrate side and the void volume between module and dome is filled with unfiltrate. A differential pressure between the unfiltrate and filtrate side pushes the liquid in a constant flow through depth filter sheets inside the modules. When the modules are exhausted, the sheets are plugged with solid particles resulting in a differential pressure increase. This is the right time to regenerate or replace the module(s).
Module sizes / filter areas
Both DISCSTAR® ST 30 and 40 are available in different heights dependent upon the desired number of modules. The size (see below) indicates the maximum module capacity for each housing.
| Filter Area | Size 1 | Size 2 | Size 3 | Size 4 |
|---|---|---|---|---|
| DISCSTAR® ST 30 |
1.8 m2 (16 sq ft) |
3.6 m2 (38 sq ft) |
5.4 m2 (57 sq ft) |
n.a. |
| DISCSTAR® ST 40 |
n.a. | 7.2 m2 (76 sq ft) |
10.8 m2 (114 sq ft) |
14.4 m2 152 sq ft) |
Technical Data
| DISCSTAR® ST | 30 | 40 |
|---|---|---|
| Module diameter | 12” | 16” |
| Max. operating pressure (Liquids) | 6 bar/87 psi | 6 bar/87 psi |
| Max. operating pressure (Gas/Steam) | 0.5 bar/7 psi | 0.5 bar/7 psi |
| Max. operating temp. (Water) | 95 ˚C (203 ˚F) | 95 ˚C (203 ˚F) |
| Max. operating temp. (Gas/Steam) | 140 ˚C (284 ˚F) | 140 ˚C (284 ˚F) |
| Inlet/outlet connection: DIN (diary) | DN 50 | DN 50 |
| Module interlock | flat gasket | (Double-o-ring upon request) |
| Closing mechanism | Clamp ring for quick release | Clamp ring for quick release |
Limiting factor for the delta p of a module filtration is the sheet grade and the application.
Material
| DISCSTAR® ST | 30 and 40 |
|---|---|
| Stainless steel material (product contact) | AISI 316 L |
| Other stainless steel parts | AISI 304 |
| Surface finish (inside) | Electro-polished, Ra<0.8 μm All welds ground smooth |
| Surface finish (outside) | Electro polished Ra<1.2 μm |
| Gaskets | EPDM |
FILTROX quality assurance
FILTROX assures the best quality control according to international standards:
- ISO 9001 (Quality management)
- The pressure vessel is manufactured according to DGR 97 / 23 / EG Art. 3 Abs. 3
- Vessel and equipment fulfill the requirements according to
AD-2000 - The module housings are manufactured according to good engineering practice
Certificates and special documentation
For filter housings that require further certification, we recommend the DISCSTAR® PV version.
Options
The typical setup requires gauges and valves, as well as a check valve.
DISCSTAR® ST is available in many options:
- Pharma version (please refer to special literature)
- Double-o-ring sealing and bayonet interlock to ensure highest integrity at easy handling.
- For higher pressur and/or temperatures closing mechanism can be a single bolt clamp ring with pressure vessel certificate (only 12") or swing bolts (12" and 16" versions).
- Connections can be triclamp (sanitary), or dairy (DIN).
- Housings with a higher edge at the base plate help avoiding spillage of hazardous liquids.
- For filtrations with controlled temperature (cooling or heating) we recommend a double shell dome for temperature controlled liquid.
- For larger filter area, DISCSTAR® ST is also available as a multistack housing. (Up to 4 stacks, 4 high, 16" under one dome).
- Gaskets: EPDM (Standard), silicone, viton® or teflon® encapsuled silicone.
Converter adaptors
Converters from «double-o-ring» to «flat gasket» adaptors are available for both directions. They can be quickly and easily applied.
pdf Download of Technical Info Sheet
Please download the technical info sheet from here.
