Hygienic Overflow Valves Type US

RIEGER Overflow valves US open the set response and thus prevent unwanted pressures in pipelines. They are available with weld ends and with dairy screwings or clamp ferrules. One possible application is the protection of forced-feed pumpsperistaltic pumps.
 
The overflow valve US is suitable for all liquid media.

Overflow valves are no safety valves.
For this purpose we recommend the TÜV certified safety valve type SH.

Materialin contact with product
optional
not in contact with product
1.4404/AISI316L
1.4435/AISI316L
1.4301/AISI304
   
Gaskets
O-rings/gaskets
 
EPDM, Viton
(others on request)
   
Temperatures

maximum


EPDM

continuous operation


steam sterilization


 

130 °C*


150 °C* short-time
(approx. 20 min.)

 
 
Set range
In order set pressure point is requested, pressure spring is
chosen accordingly.
 

0,5 bar - 6 bar

higher set pressures upon request

Set pressure range
of pressure spring

according to customer’s request in lower
or upper pressure range
   
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)
clamp ferrules in DIN and Inch
                                                                                 *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

perfectly cleanable


Efficiency

standard seals

minimal maintenance costs


Additional certificates
in 3-A-design possible


Not available for this item.
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 ADVICE YOU