PB is pilot operated pressure relief valve, PBW is a pilot operated solenoid relief valve available to unload system pressure. The performance of 6X series is superior than 60 series, the 6X series can be used to control the pressure of hydraulic systems smoothly in a wide range. This type is suitable for a hydraulic system which demands high flow rate.
Technical data
| Size | 10 | 20 | 30 | |||
| Series No | 60 | 6X | 60 | 6X | 60 | 6X |
| Operating pressure(Mpa) | 31.5 | 35 | 31.5 | 35 | 31.5 | 35 |
| Max .flow rate(L/min) | 200 | 250 | 400 | 500 | 600 | 650 |
| Fluid temperature(℃) | -20～70 | |||||
| Filtration accuracy(µm) | 25 | |||||
| PB Weight(KGS) | 3.2 | 4.2 | 5.2 | |||
| PBW Weight(KGS) | 4.7 | 5.5 | 6.8 | |||
| Valve body（Material）Surface treatment | casting phosphating surface | |||||
| Oil cleanliness | NAS1638 class 9 and ISO4406 class 20/18/15 | |||||
Characteristic curves（measured with HLP46，Voil=40℃±5℃）
Characteristic curves（measured with HLP46，Voil=40℃±5℃）
Characteristic curves（measured with HLP46，Voil=40℃±5℃）
Subplate mounting
Threaded connections
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