Hydraulic pressure & flow valves HAWE
Hydraulic pressure & flow valves HAWE
Pressure control valves
Pressure control valves influence the system pressure in a specific, pre-determined manner. This is achieved by altering the throttling cross-sections with the aid of mechanical, electrical or hydraulic movements. The range includes pressure-limiting valves, pressure-reducing valves, switching valves and load-holding valves.
Pressure-limiting valves, pre-load valves
Pressure-limiting
valves are a type of pressure control valve. They safeguard the system
against excessive system pressure or limit the operation pressure. Pre-load
valves, also called sequence valves are a type of pressure control
valve. They generate a largely constant pressure gradient between the
inlet and outlet on the valve. In the opposite direction the flow can
pass freely. In the normal position the valve has minor leakage.
Technical brochure 
Pressure reducing valves
Pressure reducing valves are a type of pressure control valve. They
maintain a largely constant outlet pressure even at a variable (higher)
inlet pressure.
Technical brochure
Directional valves
Shut-off valves are a type of pressure control valve. They receive the
control oil from a high-pressure circuit and switch the delivery flow of
a low-pressure pump to unpressurised circulation if the pressure value
set has been reached. During this process, the consumer side is
separated from the idle circulation by a zero-leakage check valve. If
the pressure on the consumer side drops below the pressure setting, the
idle circulation is interrupted and the oil fed to the consumer again.
Technical brochure
Load-holding valves
Load-holding valves are a type of pressure control valve. They prevent
loads on cylinders or motors dropping in an uncontrolled manner. For
this purpose they are pre-loaded with a pressure setting that is higher
than the largest possible load. A hydraulic piston controls the opening
of the valve to achieve the required lowering velocity.
Technical brochure
Flow valves
Flow valves influence the volumetric flow in hydraulic systems. The range includes flow control valves, flow dividers, restrictors and throttle valves.
Flow control valves
Flow control valves are a type of flow valve. They generate a set constant volumetric flow, largely independently of the load. Proportional
flow control valves are a type of flow valve. They generate a constant
volumetric flow independent of the load which can be controlled in an
electro-proportional and remote way.
Technical brochure
Flow dividers
Flow dividers are a type of metering valve. They divide or add together a
total volumetric flow either evenly or using a fixed ratio. The
consumer pressures have no effect.
Technical brochure
- Product Code: Product07
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