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Cartridge valve DWPB serieshydraulically-operatedscrew-inunloading
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Characteristics
- Type
- cartridge
- Operation
- hydraulically-operated
- Body
- screw-in
- Associated function
- unloading
- Other characteristics
- two-stage, with differential pressure controller
- DN
4 mm
(0.157 in)- Pressure
Max.: 250 bar
(3,625.9 psi)Min.: 0 bar
(0 psi)- Temperature
Max.: 80 °C
(176 °F)Min.: -25 °C
(-13 °F)
Description
Unloading Valves, Hydraulically ControlledDescriptionSeries DWPB-4N… cartridges are size 4, two stage, high performance pressure-unloading valves with an 3/4-16 UNF mounting thread. They consist of a spool-type main stage and a leak-free, ball-type pilot stage. Unloading valves are used wherever a pump has to be disconnected from and re-connected to a pressure circuit. For this purpose, either the 'Off' pressure or the 'On' pressure of the cartridge can be set. When the 'Off' pressure is set, the 'On' point will depend on the selected percentage on-off differential, or the other way round. To disconnect the pump, the cartridge responds to rising pressures at ports 4 and 1 by opening the connection from 43.
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.