ABB S26 Series Operating Instruction page 32

Beverage bolted seal
This seal has been designed to be suited for specific applications in beverage processes. The sanitary bolted seal is available only
for gauge and absolute transmitters with direct-mount seal construction. Spud process fitting is available on request.
Note. This kind of diaphragm seal does not comply with the stringent 3A standard requirements. Therefore, it is not covered by
the relevant certification.
18 (0.71) 113 (4.45)
N°6 holes M6
simmetrically
Ø 44 (1.73)
placed at 60°
Ø 52.2 (2.06)
Ø 64 (2.52)
Figure 38: Beverage bolted seal on 266HDH and 266NDH
3-A requirements
All sanitary S26SS remote diaphragm seals and other associated direct mount sanitary diaphragm seals must be mounted in such
a way as to allow for drainage of all process fluids. Tank spud fittings must be mounted with the leak detection hole located at the
bottom for proper drainage by gravity. Sanitary applications must be performed so that all welding surface are smooth in order to
prevent dirt from lodging inside surface irregularities.
3-A seals are equipped with a specific label (see below) indicating the temperature range and gasket characteristics.
Figure 39: Adhesive label for 3-A certified S26SS seals
For any other detailed information regarding S26SS seals such as pressure limits, vacuum service recommendations, process
temperature limits, temperature effects and configuration, please refer to product datasheet.
32 OI/S26-EN Rev. B | 2600T Series Pressure transmitters
29 (1.14) 18 (0.71)
SPUD FOR BEVERAGE BOLTED
Ø 64 (2.52)
Ø 52.2(2.06)
N°6 holes Ø 6.5
Ø 39(1.54)
Ø 34(1.34)
Ø 39.8
(1.57)