This type is our hydraulic directional valve, 40liters, with 3 spools---3P40F-YW-OT
the function as below:
1-2 spools: spring return, 3 position 2 acting
the 3th. spool : detent return, 3 position 2 acting
Pressure:20mpa





Manually or mechanically controlled hydraulic directional control valve Р40 is designed for distribution and control of work flow between generator (pump) and executive mechanisms (cylinder, hydro-motor, etc.). It is manufactured with 1 to 7 plungers, with parallel or serial action, with common or individual back valve for each plunger, with or without safety valve.
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1, Inner check valve: The check valve inside the valve body is to insure the hydraulic oil not to be returned.
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2, Inner relief valve: The relief valve inside the valve body is able to adjust the hydraulic system working pressure. |
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3, Oil way: Parallel circuit, power beyond option |
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4, Control Way: Manual control, pneumatic control, hydraulic and electric control for optional. |
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5, Valve construction: monoblock construction, 1-7 levers. |
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6, Spool Function: O,Y, P,A. |
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7, Option: Hydraulic lock is available to be added on A and B port. |
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8, Available with manual, pneumatic control, electric and pneumatic control, hydraulic and electric control and etc.
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Other types

At present, most popular Brands in Hydraulics are Danfoss, Char Lynn, M+S, HANJIU, each with its own merits, however