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Proportional directional valves MV
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Proportional directional valves MV - 1

100-30 tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:13.00pt "Arial", sans-serif; } .font1 { font:20.00pt "Arial", sans-serif; } .font2 { font:50.00pt "Arial Black", sans-serif; } .font3 { font:23.00pt "Georgia", serif; } b BUCHERHYDRAULICS Safety for Hydraulics User's information about proportional valves in monoblock and compac design motionand progress Ersatz fur: 7.1.0 1/7 Klassif ikation:430.40.50. Releienz: 301-P-9050027-E-02A>205

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Proportional directional valves MV - 2

301-P-9050027-E-02/02.05 2/7 Contents Page 1. Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3. Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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Proportional directional valves MV - 3

301-P-9050027-E-02/02.05 3/7 3.1 Table: tightening torques für threaded connections, S series - B type Threads Tightening torque[Nm] G1/4" 55 G3/8" 80 G1/2" 115 G1" 310 G1 1/2" 540 3.2 Table: tightening torques MA (ges = 0.125) or the fastening bolts, ISO 4762 (DIN 912) - 12.9 Size Thread Wrench size MA [Nm] Monobloc Compac 8 M6 - 5 11.4 8 - M8 6 28 12 M8 - 6 28 12 - M10 8 55 18 M10 - 8 55 18 - M12 10 94 25 M12 - 10 94 25 - M16 14 232 3.3 Figure: View of a proportional valve (here for example: monobloc size 12 with 2 actuator modules, pump connection module MU, electro-hydr. actuation...

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Proportional directional valves MV - 4

301-P-9050027-E-02/02.05 4/7 3.4 Figure: View of a proportional valve (here for example: compac block size 12, pump connection module CU, electro-hydr. actuation) b a Item 13 Item 14 Item 12 Item E1.1 Sets pressure relief valve with stroke limiter Item 31 Item 32 Item 33 Item E3 Sets max. valve stroke (max. flow) for PB (para. 4.3) Item 23 Item 22 Item 21 Item E2 Sets pressure com- pensator (para. 4.4) Item 33 Item 32 Item 31 Item E3 Sets max. valve stroke (max. flow) for PA (pars. 4.3) Item 13 Item 12 Item 11 Item E1 Sets pressure valve B" B" B" B" DUE2 XL F1 DUE1 Jets in pilot valve...

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Proportional directional valves MV - 5

301-P-9050027-E-02/02.05 5/7 4.2.1 Procedure: Remove the protective cap (item 11). Stick the hexagon socket screwdriver (according to DIN 911) into the set screw (item 12) When loosen the lock nut (item 13), hold set screw at its home position. During turning the set screw read the pressure gauge: Maximum pressure reduction: turn adjustment screw counterclockwise Maximum pressure increase: turn adjustment screw clockwise Standard valuet: 1/4 turn ~ 40 bar pressure change For standard valves the maximum permissible set value is 350 bar. For special designed valves with permissible set value...

Open the catalog to page 5
Proportional directional valves MV - 6

301-P-9050027-E-02/02.05 6/7 4.4 Adjusting the maximum flow via pressure compensator adjustment (item E2 in fig. 3.3/3.4) This proceeding can only be performed on MU/CU, MD/CD and MR versions. Caution: Do not mistake the set screw of pressure compensator spring with maximum pressure-relief device (item E1, fig. 3.3/3.4)! 4.4.1 Procedure: Depressurize the system! (stop pump). Remove the protective cap (item 21, fig. 3.3/3.4). Stick the hexagon socket screwdriver (according to DIN 911) into the set screw (item 22). Turn the adjustment screw (item 22) clockwise until a hard stop is felt. Set...

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Proportional directional valves MV - 7

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