Aseptic Control/Modulating Valves

The valve body of the RIEGER aseptic valves is hermetically sealed from the environment, thus ensuring the perfect protection for your liquid product.

The pocket-free design of the valve body and the optimum surface make it an indispensable part of sterile process engineering in food technology and pharmaceuticals.

Thanks to the modular design the reconstruction of aseptic into hygienic version, of "air to open" on "air to closed", of liquid on fibrous and particulate media is no problem.

The dimensions can be adapted to local conditions.

Even under special conditions such as high sterilization temperatures RIEGER Aseptic valves meet all requirements regarding reliability and reliable operation.
Materialin contact with product
optional
not in contact with product
1.4404/AISI316L
1.4435/AISI316L
1.4301/AISI304
   
GasketsPTFE bellows
metal bellows
O-rings/gaskets
PTFE
1.4571/1.4404
EPDM
   
Temperaturesmaximum
EPDMPTFE
 continuous operation

steam sterilization
 
130 °C*

150 °C*
 
121 °C*

135 °C* short-time (approx. 20 min)
    
Pressureclosing pressure

air pressure
 
max. 6 bar
 
min 6 bar -
max. 10 bar
   
Surfacesin 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)
                                                                                  *dependent upon operating conditions
Construction of the valve

massive valve housing

no dead spaces

completely draining

many possible installation orientations


Absolute product safety

perfect isolation from the environment

no sump , no dome


Serviceability

seal replacement without special tools

low downtime

screwed bellows

perfectly cleanable


Efficiency

long lifetime of O-Rings

standard seals

minimal maintenance costs


Additional certificates
in 3-A-design possible


Recommended Bürkert positioner with (0) 4-20 mA

  • Bürkert 8692 WITH display and control buttons for programming directly to the valve (M12) see Bürkert 0227301
  • Bürkert 8694 WITHOUT display or control buttons for programming directly on the PLS/PC (M12) see Bürkert 0227417
  • Bürkert 8694 WITHOUT display or control buttons for programming directly on the PLS/PC (grommet) see Bürkert 0227411

All Valves are available in special alloys, such as Hastelloy C22, 1.4539/904L, 1.4529, AL6XN and others.

Directly send us your inquiry:
sales@rr-rieger.de
Tel.: +49 7361 5702-0
LET US ADVISE YOU