
Single seat shut-off valves are used for simple shutoff at flow path intersections within the pipe system. One seal is used on the one-part valve disk for shutting off two pipes against each other. In case of sealing failure, controlled leakage drain is not provided.
Various process connections are available such as Tri-Clamp or the sanitary VARIVENT® flange arrangement. All single seat shut-off valves are available in sizes from OD 1" through to OD 4" as standard, with fractional single seat shut-off valves for CIP routing operations in 1/2" or 3/4" sizes.
GEA Tuchenhagen single seat shut-off valves are also available for reverse acting applications to enable closure against flow when required.
The modular design for all types of all GEA Tuchenhagen single seat shut-off valves provide for a low diverisity of spares and the proven GEA Tuchenhagen metal-to-metal sealing principle ensures long gasket life and low maintenence.
A more economical and compact range of single seat shut-off valves is also available.

Shut-off Type N (3A approved)

Accessory shut-off Type N with T.VIS control module (3A & EHEDG approved)

Reverse acting shut-off Type U (3A & EHEDG approved)

Fractional shut-off Type N (3A approved)