Luck's pilot operated three-way proportional pressure reducing valve 3DR10P-6X has pilot control function. This proportional valve can realize three-way connection, and has proportional adjustment characteristics. Valve 3DR10P-6X is mainly used in hydraulic system to reduce and stabilize system pressure.
| General | ||
| Weight kg | 6 | |
| Installation position | Optional | |
| Ambient temperature range ℃ | -30 to +50 | |
| Hydraulic | ||
| Nominal pressure bar | 315 | |
| Maximum operating pressure | -Port P and A bar | 315 |
| - Port Y bar | Separately and zero pressure to tank | |
| Pressure setting | -Minimum bar | Depending on flow |
| -Maximum bar | 50; 100;200;315 | |
| Maximum flow L/min | 120 | |
| Hydraulic fluid | Mineral oil(HL, HLP) to DIN 51524）; fast bio-degradable hydraulic fluids to VDMA 24568(see also RE 90221); HETG (rape seed oil) 1); HEPG (polyglycols) 2); HEES (synthetic esters) 2); other hydraulic fluids on request | |
| Hydraulic fluid temperature range ℃ | -30 to +80(NBR seals) -20 to +80(FKM seals) | |
| Viscosity range mm2/s | 10 to 800 | |
Features:
▶Valve for the reduction (P to A) and limitation
▶For sub-plate mounting,porting pattern DIN 24 340 form A,ISO 4401and CETOP-RP 121H,sub-plates to catalogue sheet RE 45 054 (separate order)
▶4 pressure stages
▶ 4 adjustment elements
●rotary knob
●sleeve with hexagon and protective cap
● lockable rotary knob with scale
●rotary knob with scale
Application:
Three-way proportional pressure reducing valve 3DR10P-6X can be widely used in various hydraulic systems, such as engineering machinery, metallurgical equipment, shipbuilding and other fields.
The pressure valve type 3DR10P-6X is a pilot operated 3-way pressure reducing valve with pressure limitation in the secondary circuit. It is used for the reduction of pressure in a hydraulic system.
The pressure reducing valve consists mainly of main valve (1) with control spool (2) and pilot control valve(3) with pressure adjustment element (10).
At rest the valve is open. Pressure fluid can flow unrestricted from port P to port A. The pressure in port A is applied via the channel (4) to the spool area opposite to the compression spring (9). At the same time the pressure is applied via the orifice (6) to the spring loaded side of the control spool (2) and via channel (5) to the ball (7) in the pilot control valve (3).
Dependent on the setting of the compression spring (11) a pressure builds up in front of the ball (7) and in channel (5) which holds the control spool (2) in an open position. Pressure fluids flows from port P via the control spool (2) into port A, until a pressure is built up in port A, which exceeds the pressure value set at the compression spring (11) and lifts the ball (7).
The control spool (2) moves into the closed position. The required reduced pressure is achieved when a balance between the pressure in port A and the pressure value set at the compression spring (11) is reached.
If the pressure in port A continues to rise at the actuator through external forces the control spool (2) is moved still further against the compression spring (9). Thus port A is connected to port T via the control lands (8) at the control spool (2). Enough pressure fluid flows to tank to ensure that the pressure does not rise any further.
The pilot oil return from the spring chamber (12) is always external via the control line (13) to port Y. This must always flow at zero pressure to tank.
The pressure gauge connection (14) makes it possible to monitor the reduced pressure in port A.
Sturctur of Proportional valve 3DR10P-6X
Address
No. 27, Yangsha Road, Huilong Town, Qidong City, Jiangsu Province, China
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