to protect the compressor unit from contamination and dirt particles.
Suction Filters
GEA suction filters are combined with a stop valve and are primarily connected to the suction side of screw-type compressor units. They protect the compressor medium circulation from soiling. When the compressor unit is switched off, the integrated check valve prevents the compressor from rotating in the reverse direction. They are fitted with a check valve and with a replaceable strainer insert made of rustproof metal mesh. The check valve is attached to the bottom of the suction filter casing with hexagonal nuts and is maintenance-free. The strainer is self-centring and is held in the bottom of the casing. The cold gas refrigerant flows through the strainer from the inside to the outside. As soon as the flow of the medium slows down and comes to a standstill, the check valve closes. This prevents the screw-type compressor from reversing and thus no oil is lost.
Suction Filter type SD & SFR
Technical Features
- Available in steel, stainless steel or low temperature steel
- Selection of body material as per German DIN EN12284, AD2000 Series W
- Working mediums: refrigerants as per EN 378 p. 1, e. g. NH3, R22, R134a; blends and refrigerator oil; neutral, gaseous and liquid mediums, glycol-based cold brine
- Design and manufacturing acc. to U- and UM-stamp, if required
- SFCS Suction Filters
- approx. 50 % less floor space required compared to the single components
- approx. 30 % less pressure drop compared to the single components
- approx. 30 % less weight compared to the single components
- approx. 30 % more cost-effective compared to the single components
| SF-SFR suction filters | SFCS Suction Filters | |
| material | steel or stainless steel | steel, stainless steel or low temperature steel |
| nominal size | DN 80-500 | DN 80-500 |
| nominal pressure level | PS 25, PS 40, PS 63 | PS 25, PS 40, PS 63 |
| temperature range for standard valves | -60 °C to +150 °C | -60 °C to +150 °C |
| temperature range for HT valve series | -10 °C to +200 °C | -10 °C to +200 °C |
| connection | flanged ends as per DIN and ANSI | flanged ends as per DIN and ANSI |
| other | mesh size:
63 / 80 / 100 / 135 / 150 / 200 / 250 / 500 µm available integrated check valve | mesh size:
63 / 80 / 100 / 135 / 150 / 200 / 250 / 500 µm available integrated check valve |
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