suitable for liquid, fibrous and particulate products such as yogurt, soups with meat deposits, strawberry jam
- housing made of solid material
- perfectly cleanable
- inner surface Ra <= 0,8 µm (standard)
- product space hermetically separated against ambient
- sizes from DN 10 to 40 available
- completely emptying/draining
- dead space free design
- product-protecting sterile media guidance
- easy and quick installation without special tools
- low downtime
- FDA-compliant
- long service life through enhanced pressure stability (up to 10 000 000 operations )
- folds remain open in open position, therefore easily cleanable
- large stroke, therefore also suitable for fruit pieces (whole cherries or strawberries at DN 20 DIN)
- fast acting actuator (up to 2 full cycles/second at DN 20 DIN or 3/4" or reacting time of < 200 ms)
The long service life of the PTFE bellows, optionally available with stainless steel cap or PEEK cap for liquids with grains, ensures low downtime.
Because of open folds in the open state, the cleaning performance is optimal.
Several valves, combined to valve blocks in filling machines, aseptically fill up products like yogurt.
Areas of Rieger filling valves
Different manufacturers worldwide rely on technology Rieger:
- A renowned mustard manufacturer from Germany relies on Rieger..
- Rieger valves fill liquid soap in plant of a multinational corporation.
- A large dairy in England fills fruit yogurt with fruit pieces .
- and many more ...
| Material | product contact optional not product contact | 1.4404/AISI316L 1.4435/AISI316L 1.4301/AISI304 | |
| Seals | PTFE bellows metal bellows O-rings/gaskets | PTFE 1.4571/1.4404 EPDM | |
| Temperatures | maximum | EPDM | PTFE |
| operating temperature sterilisation temperature | 130 °C* 150 °C* | 121 °C* 135 °C* short-time (approx. 20 min) | |
| Operating pressure | closing pressure control air pressure | max. 6 bar min 6 bar - max. 10 bar | |
| Surfaces | product contact optional not product contact | Ra <= 0,8 µm e-polished, other surfaces on request Ra <=1,6 µm | |
| Connections Standard- pipe classes | DIN 11850-R2 (DIN 11866 A) O.D.-Tube (DIN 11866 C) DIN EN ISO 1127 (DIN 11866-B) | ||
For all these applications Rieger designed and built valves. Below some examples:
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