Tiefenbach manufactures hydraulic directional control valves.
The control valves can be operated manually, low and high pressure pilot or electrically as solenoid valves, or a combination of these.
The valves from Tiefenbach are supplied as completely sealed, “Zero-leakage”, which is essential in static hydraulic systems in an offshore context.
The solenoid valves are available up to 700 bar, while pilot-operated valves can be supplied for higher pressures.   The electrical valve body can be supplied with EEx ia, EEx d or EEx me ATEX certificates as well as UL and C.S.A. certificates.
The valves are available in 2/2, 3/2 and 4/2 configurations in dimensions from DN2 up to DN20 with flow rates from 1 ltr/min up to 400 ltr/min.
More info: www.tibacon.com