Menu
RIEGER control or modulating valves are especially convincing in food sector, but also in the pharmacy by strength and durability. This is based on the flow control cones with O-ring sealing 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 metal control cones. 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 is a change of the actuators between – manual (DN 10-100 or 3/8″-4″) or pneumatic with positioner (DN 25-100 or 1″-4″) – always possible.
| Material | in contact with product optional not in contact with product |
1.4404/AISI316L 1.4435/AISI316L 1.4301/AISI304 |
|
| Gaskets | O-rings/gaskets | EPDM (others on request) |
|
| Temperatures | maximum | EPDM | |
| continuous operation
steam sterilization |
130 °C*
150 °C* short-time |
||
| Pressures |
closing pressure
air pressure |
max. 6 bar
min 6 bar – |
|
| Surfaces |
in contact with product optional not in contact with product |
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) |
||