Since 1879
Hygiene Ventile von Rieger

Double seat change-over valve N3 – hygienic

 

DN 25 - DN 150
  • one-piece solid valve housing
  • no welding distortion
  • water hammer safe up to 30 bar
  • 2 balanced valve disks
  • low control air consumption
  • standard actuator with two lift functions
  • both valve disks liftable
  • service without compressed air possible
  • valve seat removable from the top
  • radial sealing of both valve seats
  • in the product area only 5 seals
  • seal replacement without special tools
  • contact with product 316L
  • Inner surface Ra <= 0.8 m (Standard)


 

 

 
 Rieger Doppelsitz-Umstellventil N3 zweiteiliges Gehäuse Rieger Doppelsitz-Umstellventil N3 dreiteiliges Gehäuse
two-part housing :
lower housing rotatable

three-part housing:
all housings rotatable


 

 

Material product contact optional not product contact 1.4404/AISI316L
1.4435/AISI316L
1.4301/AISI304
     
Seals  O-rings/gaskets EPDM
     
Temperatures maximum   EPDM
  operating temperature

sterilisation temperature
 
  130 °C*

150 °C* short-time (approx. 20 min)
       
Operating pressure closing pressure

control air pressure
 
max. 10 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)

 

Recommended Bürkert control tops for aseptic valves with 24 VDC or ASI bus

Contactless position with three switching points (teach-in function) with 3 internal feedback sensors, 1 output for external feedback (external feedback not included)

Two alternatives:
 




© Bürkert
24V DC with 4 digital outputs screw terminals, cable gland:
 
 
AS-Interface with a maximum of 62 slaves flat cable clamp with 1 m cable
   
Remarks:
  • 0 solenoid valve e.g. for single seat valves - pure feedback function
  • 1 solenoid valve for e.g. for single seat valves with actuators NC or NO
  • 2 solenoid valves for e.g. for single seat valves with air/air actuator or double seat valves N5, N9
  • 3 solenoid valves for e.g. double seat valves N1, N2, N3, N4, N7, N13
For more details see website Bürkert www.buerkert.com







 
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Gebr. Rieger GmbH & Co. KG
Kochertalstraße 32
73431 Aalen - Germany

Tel.: +49 (0) 7361 - 5702-0
Fax: +40 (0) 7361 - 5702-51

info@rr-rieger.de
 
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