The advantages of water hydraulics – fire resistance and biodegradability – have been used in the mining industry for quite a long time. In the heavy industry, too, where enormous heat often develops during the work processes the HFA medium lends itself for being used as hydraulic fluid.
The big foundry of an automotive supplier, for example, changed from oil hydraulics to water hydraulics made by Tiefenbach, not least because of the fire hazard. This change included both the hydraulics for moving the boxes in the moulding plants and the drive technology for the tilting furnace. Essential components of the installation such as e.g. cylinders and pipelines could be retained.
Water-hydraulic – the safe alternative.
Water-hydraulic: product overview ( valves )
- Directional control valves
Directional control valves
Directional control valves are designed to allow or prevent hydraulic fluid flow or to change the flow direction. They are operated either electrically, hydraulically or manually.
Our corrosion-resistant directional control valves are available in a variety of nominal sizes and designs:
- 2/2-way valves
- 3/2-way valves
- 4/3-way valves
- Check valves
Check valves permit flow in one direction, only, and block flow in the opposite direction without any leakage via a cone. On the "pilot-operated" type the blocking function can be deactivated by a separate control pressure. Our corrosion-resistant check valves are availabie in a variety of norminal sizes and designs:
- In-line check valves
- One-way restrictors
- Pilot-operated check valves
- Pressure relief valves
- Pressure reducing valves
- Flow control valves
- Flip-flop valves
The flip-flop valves are stop valves with two inlets and one outlet. The pressurized inlet is automatically connected with the joint outlet. In this configuration the other inlet is closed.
Our corrosion-resistant flip-flop valves are available in different nominal sizes and with operating pressures of up to 350 bar.
- Pilot valves
The pilot control valves are 2/2-way or 3/2-way valves. They are primarily designed for operating larger valves.
A flanged-on solenoid converts electrical energy into mechanical energy via a magnetic coil with plunger which, in turn, actuates the directional control valves. Hydraulic control systems can thus be actuated indirectly electrically, hydraulically, pneumatically, or mechanically.
- Proportional valves
Proportional valves belong to the group of consistent control valves. Unlike discrete valves their valve opening can be controlled variably. They thus offer the possibility to dynamically control volume flows and pressures and to adapt them to the respective requirements.
Our proportional valves are available in different nominal sizes and designs.