Triple-Offset Conical Seating , Metal-To-Metal Sealing
TRI-CON valves incorporate a unique third offset with a
25-degree incline, eliminating the friction between the
laminated seal ring and the body seat. This enables a closing
process without compressing the stainless steel-graphite seal
with the valve seat, as both have the same 25-degree cone
angle. The result: true cone-in-cone seating, a long service life
and maximum leakage protection.³
The valves are available in sizes DN50 – DN2200 (2“ – 88“) and
pressure classes PN10 – PN250 (Class 150 – Class 1500).4

3 Leckrate A – C for DIN EN 12266-1 or Zero Leakage for API 598
4 The given pressure class is relevant for the casing and flanges, the
maximum allowable differential pressure for the internals on request.