Flow control pressure compensated valves - Walvoil

1 Flow control pressure compensated valves DIVISIOND1 WWEU01 EDIVISIONWARNING!Variations and modifications of technical features and dimensions are also reserves the right to stop production of each and any model listed in the catalogue with no on the text contained herein belong to Walvoil . Partial and full reproductions or copies of this catalogue are IS NOT RESPONSIBLE FOR ANY DAMAGE CAUSED BY AN INCORRECT USE OF THE EDITION MAY 2010 DIVISION DIVISIOND1 WWEU01 EDIVISIONG eneral InformationFLOW control pressure compensated VALVESF luid:best use mineral oil with viscosity ranging between 10 and 200 :dirty oil is the main reason for failure and troubles of hydraulic parts and table below contains OLEOSTAR recommendations about the minimum oil contamination level according to individual specifications of different items.

2 For further safety of your hydraulic equipment and of all valves assembled on it, we either recommend use suction filters (rather than return filters) or separated filter :make sure to provide suitable gasket lubrication with clean oil before screwing the cartridge on the valve body . Also make sure to screw the cartridge manually in to reach against the gaskets in the valve :internal components made out of high grade steel duly treated and more information please ask our technical office .Working temperature:min. -25 C (-13 F) max. 90 C (194 F) with standard BUNA N -20 C (-4 F) max. 200 C (392 F) with optional VITON diagrams.

3 All rating diagrams of this catalogue are measured with mineral oil of 46 cSt viscosity at 40 (104 F) drawings dimensions are defined as TYPE OF EQUIPMENT - TYPE OF VALVECONTAMINATION LEVELA ccording to ISO 4406- Heavy duty equipment- Equipment running at 210-350 bar (3050-5100 psi) working pressure - Equipment using proportional controls- Equipment with high frequency cycles-/16/13- Equipment running up to 210 bar (3050 psi) working pressure - Spool-type valves - valves with calibrated ports-/18/14- Equipment running at low working pressure - Pilot plants and equipment- Equipment with low frequency cycles-/19/15mmin4 DIVISIOND1 WWEU01 EDIVISIONH ydraulic diagramHydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/2 flowregulator, with free return diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/2/BI/RABD ouble acting14037350510037 Hydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/3 flow regula-tor.

4 Exceeding flow to tank35092350510041 Hydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/2 flowregulator, with free return flow up toMaximum pressurePagel/minUS proportional flow regulators9024210305031 IndexIndexFLOW control pressure compensated VALVESDIVISION5 DIVISIOND1 WWEU01 EDIVISIONTypeDescriptionMaximum flow up toMaximum pressurePagebarpsil/minUS gpmVPR/3/ET/RL3-ways flow regula-tor, with free return flow and exceeding flow to tank15040350510047 Hydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/3/ET/VMP3-ways flow regula-tor, with built-in relief valve on the checked way and exceeding flow to tank35092350510051 Hydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/3/ET/RL/VMP3-ways flow regulator, exceeding flow to tank.

5 With built-in relief valve on the checked way and free oil return15040350510057 Hydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/3 +VMP+VE3-ways flow regulator, exceeding flow to tank, with built-in relief valve and discharge on the checked way24063350510061 Hydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPF/3 flow regulator, fixed constant flow and exceeding flow to pressure15040350510065 Hydraulic diagramIndexIndexFLOW control pressure compensated VALVES6 DIVISIOND1 WWEU01 EDIVISIONH ydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPF/3 +VMP3-ways flow regulator, fixed constant flow and exceeding flow to pres-sure.

6 pressure relief valve on the checked way15040350510069 Hydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS proportional flow regulators9024210305073 Hydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/3 +VE3-ways flow regulator, exceeding flow to pres-sure, pressure relief valve and electrical cut-off on the checked way450119350510093 Hydraulic diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/3 flow regulators, with exceeding flow to diagramTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS gpmbarpsiVPR/3 +VE/LPD3-ways flow regulator, exceeding flow to pres-sure, pressure relief valve and electrical cut-off on the checked way, specially designed for hydraulic hammers control .

7 Patented valve450119350510099 IndexFLOW control pressure compensated VALVESDIVISION DIVISIOND1 WWEU01 EDIVISIONH ydraulic diagramsTypeDescriptionMaximum flow up toMaximum pressurePagel/minUS speed valves , sandwich mounting flow up toMaximum pressurePagel/minUS gpmbarpsiVDFRFlow diagramIndexFLOW control pressure compensated valves DIVISIOND1 WWEU01 EDIVISIONC oilsIntroduction .. BE .. BT .. CoilsIntroduction, proportional coil 35x35 and 45x45 .. ConnectorsIntroduction, solenoid connectors CC-CA, CL e CP .. adjustments .. Bodies2 Way Bodies .. Way Bodies .. Way Bodies .. to order valves with bodies .. , tool and tap2 Way SAE Cavity.

8 Way SAE Cavity .. Way SAE Cavity .. VPR/2/RL/C/38 .. ValvesType VPR/2/ flow Qc toolsWeightl/minUS gpmkglbVPR/2/RL/C bar-3050 psi-see page 132 VPRL/2/RL/C 380,35 (steel)0,77 (steel)VPR/2/RL/C/B 38210 bar-3050 psi-(aluminium body)0,72 (steel)1,59 (steel)VPR/2/RL/EX bar-3050 psi--0,22 (steel)0,48 (steel)VPR/2/RL/EX ,34 (steel)0,75 (steel)VPR/2/RL/EX 1245120,47 (steel)1,04 (steel)VPR/2/RL/3830 bar-3050 psi-(aluminium body)350 bar-5100 psi-(steel body)see page 132 VPRL/2/RL/C 381,09 (aluminium)0,35 (steel)2,40 (aluminium)0,77 (steel)VPR/2/RL/1250131,06 (aluminium)2,27 (steel)2,34 (aluminium)5 (steel)VPR/2/RL 349024-2,15 (aluminium)4,52 (steel)4,73 (aluminium)

9 9,96 (steel)VPR/2/RL 100150395,20 (aluminium)11,46 (aluminium)CartridgesType PWFlow barCavitiesand bar-5100 psi-see pageSAE 8/20, pageSAE 10/20, pageSAE 12/20, pageSAE 16/20, VPR/2 and valve is designed to provide flow adjustment from E (1) to C (2) by a variation of the oil flow section. Free oil flow is allowed from C (2) to E (1). Best performance of the valve is assured when the flow in E (1) is at least 10% bigger than in C (2). pressure variations in C (2) do not alter the checked oil cavity have to report also the features of variation A see page 129**2 WAYS FLOW REGULATORS, PRESSURECOMPENSATED, WITH FREE RETURN LINE1210 DIVISIOND1 WWEU01 EDimensions and hydraulic circuitRating diagramsOrder codeDIVISIONType VPR/2/RL/C 38 VPR /2 /RL /C 3812 Cross section1500500200010357(US gpm)(psi)2468(US gpm)1001252505075(psi)

10 pressure compensation diagram 1 2 pressure drop diagram 1 2 55 2 ways flow regulator, pressure compensated , with free return lineDIVISION11 DIVISIOND1 WWEU01 EDIVISIONR ating diagramsOrder codeDimensions and hydraulic circuitType VPR/2/RL/C/B 38 VPR /2 /RL /C /B 38 ECC1001252505075(psi)2468(US gpm)15005002000(psi)10357(US gpm) pressure drop diagram E C pressure compensation diagram E C ways flow regulator, pressurecompensated, with free return /2 /RL /EX 14 /VBAC ross section3000600900500100150200(psi)(US gpm)200250500100150(psi)2046(US gpm)7 pressure drop diagram A B pressure compensation diagram B A 2 ways flow regulator, pressurecompensated, with free return line1 DIVISIOND1 WWEU01 ERating diagramsOrder codeType VPR/2/RL/EX 14 Dimensions and hydraulic circuitVPR /2 /RL /EX 38 /VCross sectionBA2000300010000400050002046820468 10505001001502001214(US gpm)(psi)(psi)(US gpm) pressure drop diagram A B pressure compensation diagram B A DIVISIOND1 WWEU01 ERating diagramsOrder code2 ways flow regulator, pressurecompensated, with free return lineType VPR/2/RL/EX 38 Dimensions and hydraulic circuitSezioneBA7306912600018003000(US gpm)(psi)