211-01
Extension ring for surface box model no. 211-01

The extension ring permits a height adaptation of the Hawle surface box for gate valves (model no. 211) to road level. Dismantling of the surface box is not required.

Compared with a conventional surface box seat the angle seat reduces the rattling tendency of the cover.

Material: GJS-400, prime coated and black lacquered
Medium Water

The extension ring permits a height adaptation of the Hawle surface box for gate valves (model no. 211) to road level. Dismantling of the surface box is not required.

Compared with a conventional surface box seat the angle seat reduces the rattling tendency of the cover.