Hygienic double-seat tank bottom seat diverter valves N9

RIEGER offers this variant of the double seat bottom valve as a special feature on the market, in which the function of a diverter valve is also realized.
The advantage over the usual straight-through double-seat bottom seat valves is that the pipeline is not filled when filling or emptying rows of tanks.
The pipe is only open up to the tank to be filled. This avoids an additional risk of contamination from otherwise necessary shut-off valves.

Material product touched
not in contact with the product
Seals O-rings/seals EPDM
(others on request)
Temperatures maximum EPDM
Continuous operating temperature
Sterilization temperature
130 °C*
150 °C* short term
(approx. 20 min)
Press Closing pressure

Control air pressure

max. 4 bar in the tank
max. 10 bar in the pipe
min 6 bar –
max. 10 bar
Surfaces product touched

not in contact with the product

Ra ≤ 0.8 µm
e-polished, other surfaces on request
Ra ≤ 1.6 µm
Pipe classes
DIN 11850-R2 (DIN 11866 A)
O.D. tube (DIN 11866 C)
*dependent on operating parameters

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