Fitting & Flanges
The valve housings can be specified with a welded-on connection fitting.The seal which may be included corresponds to the sealing material of the valve.

VARIVENT® Flange Connection TK
An O-ring is used for sealing the VARIVENT® flange connection, and is given a defined compression by a metal stop. The O-ring is also protected by the special geometry of the recess from being pulled out at high flow rates.
The VARIVENT® flange connection (TK) can be ordered either as a complete connection including bolts and nuts (TK) or a groove flange (TN)/smooth flange (TF) as a connection fitting on a vertical port. If a complete connection is ordered as the connection fitting, the groove flange is welded onto the housing. The groove flange (TN) contains not only the O-Ring but also the required connecting elements.

Complete Connection GK
A sealing ring G is used for sealing the pipe fitting acc. to DIN 11851.If a complete connection is ordered on a housing pipe end, the male end is welded onto the housing. The groove flange contains the sealing ring G. The liner (KO) contains the groove nut. The pipe fitting acc. to DIN 11851 can be ordered either as a complete connection (GK) or male end SC (GO)/liner SD (KO) as a connection fitting on a vertical port.

Hygienic Flange Connection ASK
An O-ring is used for sealing the hygienic flange connection acc. to DIN 11853-2, and is given a defined compression by a metal stop. The O-ring is also protected by the special geometry of the recess from being pulled out at high flow rates,
Furthermore, the flange connection is centered by the design shape. The sealing geometry of the hygienic flange connection corresponds to the aseptic flange connection acc. to DIN 11864-2.
The hygienic flange connection (ASK) can be ordered either as a complete connection including bolts and nuts (ASK) or a hygienic groove flange (NFK)/hygienic flange (BFK) as a connection fitting on a vertical port. If a complete connection is ordered on a housing vertical port, the groove flange is welded onto the housing. The groove flange (NFK) contains not only the O-Ring but also the required connecting elements.

Clamp Connection CO
The clamp connection acc. to DIN 32676 is a widely used connection fitting, especially in North America. The connection uses a symmetrically structured clamp connection with a seal located in between it, and is secured by a clamp. The second clamp connection, the seal and the clamp are not supplied.
Automated milking has become the first choice for many modern dairy farms. The benefits are compelling, and with a new batch milking solution from GEA, automated group milking for large dairy herds is possible without the need – and expense – of rebuilding existing facilities.
GEA has once again earned the highest rating – Platinum – in the globally recognized EcoVadis sustainability assessment. With a score of 92 out of 100, the machinery and plant manufacturer has improved significantly from last year’s result of 82 points. For the second year in a row, GEA ranks among the top one percent of more than 150,000 rated companies across 185 countries.
At Carlsberg’s Fredericia brewery, GEA VARIVENT valves are part of a long-game strategy. By reusing core valve bodies, retrofitting actuators and control tops, and planning maintenance around brewing seasons, Carlsberg extends asset life, reduces downtime and supports its ambitious water and sustainability targets.