Germany Harvey solenoid valve HAWE pressure reducing valve an product

Germany Harvey solenoid valve HAWE pressure reducing valve an product
HAWE Hydraulics Co., Ltd. was established in 1949 and has been developing and producing high-pressure hydraulic components and systems for more than 50 years. The company has more than 1,000 employees, has multiple sales representatives in Germany, and has more than 30 sales products worldwide, including 8 wholly-owned sales subsidiaries. Harvey products are characterized by all-steel structure of the valve body, high pressure resistance; compact structure and small size; no leakage, long service life, widely used in engineering machinery, machine tools, ships, hydraulic tools and other industries.
Germany Harvey solenoid valve HAWE pressure reducing valve an product
HAWE Harvey LV and ALZ series unloading valves are used when the system pressure reaches the set value, the unloading valve switches the pump flow to the bypass circuit, ie the unloading state. At this time, the check valve blocks the actuator from the bypass path, that is, the oil path from P to R. When the pressure on the actuator side reaches 13% of the set value, the valve will interrupt the unloading again. Such unloading can be divided into a direct acting unloading valve (LV type) or a pilot type unloading valve (ALZ type). The unloading valve described here can be used as an accumulator loading valve in most cases and should be installed as close as possible to the pump.
The large pressure of zui is Pmax=350 bar, and the large flow rate of zui is Qmax=120 l/min. HAWE Harvey ADM and VDM series pressure reducing valves HAWE Harvey ADM direct acting pressure reducing valve and VDM hydraulic pilot operated pressure reducing valve. Its function is to ensure that the output pressure maintains a constant value (DIN ISO 1219-1) when the input pressure changes. This type of pressure reducing valve can be used when switching from a higher pressure (primary circuit) to a lower pressure (secondary circuit). It makes the pressure in the low pressure circuit unaffected by the pressure of the high pressure circuit. Due to the function, the existing leakage flow must be returned to the tank without pressure through the R port under various conditions. The reverse traffic is about 50% of the large traffic of zui. A bypass check valve should be considered for large flow rates. If the secondary pressure exceeds the set value due to external force, the direct-acting pressure reducing valve (ADM type) has an overload balance function (starting the pressure limiting valve).