PBD series relief valves are direct operated poppet type used to limit pressure in a hydraulic system. The design can be divided into poppet (Max.40Mpa) and ball type. There are six pressure adjustment ranges available 2.5;5;10;20;31.5;40Mpa. It has characteristics of compact structure,high performance, reliable work, low noise and long service life. These series are widely applied to many lower flow systems, can be also used as relief
valve and remote control valve, etc.
Technical data
| Size | 6 | 8 | 10 | 15 | 20 | 25 | 30 |
| Operating pressure(Mpa) | 31.5 | ||||||
| Max .flow rate(L/min) | 35 | 60 | 80 | 150 | 200 | 250 | 300 |
| Fluid temperature(℃) | -20～70 | ||||||
| Filtration accuracy(µm) | 25 | ||||||
| PBD K Weight(KGS) | 0.4 | 0.5 | 0.9 | 2.1 | |||
| PBD G Weight(KGS) | 1.6 | 3.6 | 3.6 | 6.9 | 6.9 | 15.2 | 15.2 |
| PBD P Weight(KGS) | 1.7 | 3.7 | 7.1 | 15.7 | |||
| Valve body（Material）Surface treatment | Steel Body Surface Black Oxide | ||||||
| Oil cleanliness | NAS1638 class 9 and ISO4406 class 20/18/15 | ||||||
Characteristic curves（measured with HLP46，Voil=40℃±5℃）
PBD*K Dimensions for cartridge
Installation dimensions
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