A directional control valve is a device intended for controlling hydraulic flows in a hydraulic system by means of an external action. They are used in the hydraulic systems of presses, stationary machines, machine tools, truck cranes, forestry manipulators, crane-manipulators and excavators.
Directional control valves are classified by the type of shut-off and control elements into:
- spool-type,
- rotary (cock) type,
- poppet-type,
- jet-type,
- nozzle-flapper type valves.
SPETSTRANSZAPCHAST LLC offers hydraulic directional valves Youli made in Italy, Nordhydraulik made in Finland, Parker made in England, etc.
| Name | MB-3 | SN-3 | MB-4 | MB-5 | SN-4 | SN-6 | SN-8 |
| Configuration | monoblock | sectional | monoblock | monoblock | sectional | sectional | sectional |
| Number of working sections | 1-6 | 1-12 | 1-6 | 1-6 | 1-12 | 1-12 | 1-6 |
| Nominal flow, l/min | 45 | 50 | 60 | 80 | 90 | 150 | 24 |
| Maximum working pressure, bar | 315 | ||||||
| Working fluid temperature, 0C | from -40 to 80 | ||||||
Technical specifications
| Models | MB-3, SN-3, MB-4, MB-5, SN-4, SN-6, SN-8 |
|---|---|
| Configuration | Monoblock/sectional |
| Working sections | 1-6 to 1-12 |
| Nominal flow | 45-150 l/min |
| Maximum working pressure | 315 bar |
| Operating temperature range | -40 to 80°C |
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