RIEGER control valves are especially convincing in pharmacy, but also in the food sector by strength and durability. This is based on the PTFE flow control bellows which ensure uninterrupted production processes and product safety.
Longer production cycles mean lower maintenance costs and higher productivity.
On the product side, the control valves are equipped with PTFE bellows. The control behavior (Kv values) can be customized to your processes on site. For this we need as a basis for calculating the desired Kv values at 50 % and 100 % (= Kvs or Cvs) valve opening.
Note:
Kv = Cv x 0,86
Cv = Kv x 1,16
Because of the modular system, a change of the actuators between – manual (DN 10-100 or 3/8"-4") or pneumatic with positioner (DN 25-100 or 1"-4") – is always possible.
| 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) | ||
- Right angle type L
- Double right angle type T
- Cross type TT
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