Directional Control Valves - Vektek · 2020-02-17 · Directional Control Valves Manual Seat Valve...

© Vektek August 2019 Inside US 1-800-992-0236 www.vektek.com

What is the function of a directional control valve? A directional control valve is the extend and retract control for your hydraulic cylinders. It provides a flow path from the pump to the cylinders and a return path from the cylinders to the fluid reservoir.

What is the flow pattern for a double acting system? A 4-Port valve is normally required for double acting systems. Let’s look at the two control positions first. In the advance position pressure flows from the pump through the valve from "P" to "A", "B" flows back to "T". In the retract position "P" is flowing to "B", "A" is returned to "T". You need to be aware that when shifting between po si tions, there is a transitional state. During this transition, there is some "crosstalk" between ports al low ing pressure to drop in the pres sur ized circuit and return to tank. The importance of this information is that you cannot pres sur ize a system and shift back to the closed center position to hold it clamped. Using the center position to hold is inappropriate because it removes the pump from the circuit and defeats the purpose of a live hy drau lic system.

What is the purpose of the center position? The center position on 3-Position 4-Port solenoid valves is the resting position with both solenoids de-energized. On manual valves, the center position is transitional and is often unused. Closed center solenoid valves are used to ensure that there is no movement during a power failure (though a small amount of pressure will be lost in transition). The closed center manual valve makes no change in circuit direction in the center position. "P" blocked center in either a manual or solenoid valve is commonly used for decoupling of palletized double acting systems. This allows the pressure to be dropped from both the "A" and "B" hoses for disconnect and reconnect under no pressure. In the center position of this valve "P" is blocked, "A", "B" and "T" are connected.

What is the flow pattern for a single acting system? Single acting systems typically have only two valve positions. In the advance position "P" is connected to "A." In the retract position, "A" is connected to "T" and "P" is blocked, allowing the cylinder springs to push the fluid back to tank.

What do I need to watch for when I’m plumbing a system? Remember that hydraulic fluid, like water, will take the path of least re sis tance. Plan your fluid distribution manifolds and fittings to provide for the smoothest possible flow to and from your cylinders. The best schematically designed control system can be ruined by poor plumbing im ple men ta tion.

I can get a spool valve locally for a lot less money than your valve. Will it work? You are responsible for the appropriate use of all devices. The use of spool valves invalidates the warranty on any VektorFlo® pump. If you are using a suitable industrial pump and valve, they may work. The use of spool valves, especially when attempting to use a “center” (or de-energized) function can cause unusual flows and pressures, resulting in unpredictable actions of clamps. The use of a pump with an excess flow invalidates the warranty on any VektorFlo® item. If you choose to use non-Vektek pumps and valves, you assume the responsibility for selecting appropriate sizes.

All VektorFlo® directional control valves are rated at 350 bar (35 MPa) working pressure. They typically incorporate international standard mounting and fluid flow pat terns. This allows one valve sub-plate to serve as the mounting platform for any of these valves. Plumbing lines are connected to ports on the sides of the sub-plate while hold-down screws secure the top valve.

Removal and replacement is easily ac com plished without disturbing system plumbing, greatly reducing chances of system contamination. Valve change overs can be accomplished in minutes, not hours: a tremendous advantage as production downtime costs mount up.

Standardized mounting patterns also mean that valve operation can easily be upgraded from manual to electric, again without having to change system plumb ing. Our electric solenoid valves are direct bolt-on replacements for our manually operated versions.

Frequently Asked Questions

NOTE: Maximum system flow rate is 5.7 L/minute for all VektorFlo® special function valves unless otherwise noted.

Excess flow voids warranty.

Directional Control Valves

Frequently Asked Questions

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© Vektek August 2019Outside US+1-913-365-1045www.vektek.com

Single and Double ActingMaximum Operating Pressure 500 bar (50 MPa).Minimum Operating Pressure 10 bar (1 MPa).CETOP 3 adaptation.

SpecificationsModel No.

Nominal Size Type Nominal

FlowWeight

(g)

47-0301-55 6 Seat Valve 12 L/m 444

Model No. 47-0301-55 2-Position, 3-Port

Seat Valve - Manually Operated - For Single Acting cylinders

Model No. 47-0301-55

ATP


Seat Valve - Solenoid Operated - For Single Acting cylinders - 24 VDC


Seat Valve - Pneumatically Operated - For Single Acting cylinders

Model No. 47-0341-55

ATP

ATP

Model No. 47-0331-55

CETOP Sub-plate

Model No.47-0941-10



FlowWeight

(g)

47-0331-55 6 Seat Valve 12 L/m 740



FlowWeight

(g)

47-0341-55 6 Seat Valve 12 L/m 459

85.9102

44

25.4

35

8

8

11 11

51

25.4

22

44

4.1 4.1 Locating Hole

9.1

32.9

ILMV709400 REV D

B

A

P

T

G1/4 Tank Port

Pressure Port G1/4Auxiliary "A" Port(With G1/8 Plug)

Auxiliary "B" Port(With G1/8 Plug)

M5 X 12 deep (4X) For CETOP 3 Valve Mounting Pattern

Mounting Holes for M5 Socket Head Cap Screwfour places

"A" PortG1/8

"B" PortG1/8


CETOP 3 Valves

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15

8

TA

P

40

22

30 ±0,1 5

35 ±

0,15

25,5

17,5

45

9,5

Ø40 8113

M6 6

84

Model No. 47-1112-53

TP

A

Seat Valve 2-Position 3-Port Valve Solenoids work with or without a shift lever and are designed and checked to VDE 0580. Seat valve has a manual emergency actuator. A check valve is incorporated in channel "P". Seat valve has complete hydraulic pressure compensation and negative switching. Position of installation is optional.

Diagram:

2-Position 3-Port seat valve nom. size 5Characteristic ∆p=f(Q)

Q( /min)

Insert check valve

2 4 6 8 10 120

∆ p (bar)

10

20

30

40

50

A T

P A

NOTE: The flow direction must be the direction of the arrow according to the symbol. The position of installation is optional.

Model No. 47-1112-52

APT

Specifications

Model No. Nominal Size Valve Type Connection

Maximum Operating Pressure(bar) (MPa)

Nominal Flow

(l/min.)

Viscosity(c St)

Ambient Temp.

(C°)

47-1112-525

Normally Opened/Normally Closed

Manifold500 bar

(50 MPa)12 10-500

-40 to +80°47-1112-53

Actuating Element

Model No. VDC P(VA)

Switch Time(ms)

RelativeDuty Cycle

(%)

Switching (Freq/ Hr.)

CodeClass

Weight(g)

47-1112-5224 20

100 on50 off

100(to 35° C)

2000 IP 54 71047-1112-53


Seat Valve 2-Position 3-Port

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Model No. 47-0301-56

Port AUnused

Model No. 47-0301-57

9


NominalSize

Valve Type Connection

MaximumOper. Pressure

(bar) (MPa)

NominalFlow(l/min.)

Viscosity(cSt)

47-0301-565 Seat Manifold

500 bar (50 MPa)

12 10-50047-0301-57

Model No.

AmbientTemp.

(C°)

ActuationType

SwitchingTorque(N cm)

Switching Stroke(mm)

SwitchingAngle

Weight(g)

47-0301-56 -40 to +80°

ControlKnob

63 3.5 90° 40047-0301-57

Manual 2-Position2-Port Seat Valve

Manual 2-Position3-Port Seat Valve Oil channel can be closed or open by means of a manual 2-Position 2-Port seat valve. Manual 2-Position 3-Port seat valve allows determination of oil flow direction. Seat valve has complete hydraulic pressure compensation and negative switching. Position of installation is optional.

NOTE: The flow direction must be the direction of the arrow accordingto the symbol. The position ofinstallation is optional.

Model No. 47-0301-57Model No. 47-0301-56

T

P

50

A

T

P

10 30±0,1

2215

8

35±

0,1

25,5 9,5

17,5

5

1119

45

20

30M6 x 10Depth

G1/4

A

A

SpecificationsModel No. Dimensions Connection Weight

(g)

47-0941-57 50 x 45 x 30 3 x G 1/4 450

For pipe connection in combination with:

- 3/2-way Seat Valve Model No. 47-1112-52 - 2/2-way Manual Seat Valve Model No. 47-0301-56 - 3/2-way Manual Seat Valve Model No. 47-0301-57


Manual Seat Valve 2-Position 2-Port / 2-Position 3-Port

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88.9

50.8 Sq

40.5

32.5

50.8

31

77.5

24.4

31 32.5

40.5

50.8 Sq

90.7

12.7

7.9 MaximumPanel Thickness

90 90

ILMV711105 REV A

Long optional handle shipped with all models.

CETOP 3 Mount Panel Mount

Shown in pressurized position

M5 MountingScrews Included

G1/4 Port Locations Shown In Top View

Lock NutIncluded

M5 Threaded Mounting Holes

B PortPlugged

P

A

T

Manual Control Valve: 2-Position, 3-PortFor use with single acting systems.Heat treated rotor and poppets provide positive fluid control. Detented internal rotor.All valves ship with short and long handles. Handle orientation can be adjusted in 45° increments.

NOTE: Maximum system flow rate is 5.7 L/m for all VektorFlo® metric valves unless otherwise noted.


Model No. Valve Configuration47-1142-21 CETOP 3 Mount47-1142-25 Panel Mount

88.9

50.8 Sq

40.5

32.5

50.8

31

77.5

24.4

31 32.5

40.5

50.8 Sq

90.7

12.7


90 90

ILMV711105 REV A



Shown in pressurized position

M5 MountingScrews Included


Lock NutIncluded


B PortPlugged

P

A

T

CETOP 3 Mounted PressureCheck Valve Sandwich PlateP-Check Valve prevents pressure drop in the pressure line of the valve.Valve plate is installed between the valve and the supply manifold.

Model No. Contents47-0347-41 Contains P-Check Valve Plate

50.8 Sq

32.531

40.5

9.65

P-Check

ILMV711107 REV A


Manual Seat Valve 2-Position 3-Port

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Manual Control Valve: 3-Position, 4-PortThese valves can be used to control a double acting workholding system. (May also be used to control single acting systems)Rotary handle motion uses a rotary bearing.Heat treated rotor and poppets are spring and pressure loaded against each other to provide positive fluid control for hundreds of thousands of cycles.All valves ship with short and long handles.Handle orientation can be adjusted in 45° increments.


Valve Configuration

Fluid Flow Maximum

Tank Port Pressure

CETOP 3 Mount43-1147-21 Closed Center

5.7 l/min17 Bar

(1.7 MPa)43-1147-41 P-Blocked CenterPanel Mount

43-1347-21 Closed Center5.7 l/min

17 Bar (1.7 MPa)43-1347-41 P-Blocked Center

50.8 Sq

40.5

31

32.5

50.8

50.8 Sq40.5

31 32.5


12.7

90.7

88.9

77.5

24.4

45

45

45

45

ILMV711403 REV A

43-1147-21 Closed Center 41-1147-41 P-Blocked Center

Handle shown in A-side position.




M5 Cap ScrewsIncluded

Lock NutIncluded



A

T

B

P

50.8 Sq

40.5

31

32.5

50.8

50.8 Sq40.5

31 32.5


12.7

90.7

88.9

77.5

24.4

45

45

45

45

ILMV711403 REV A


Handle shown in A-side position.




M5 Cap ScrewsIncluded

Lock NutIncluded



A

T

B

P


Manual Seat Valve 3 Position 4-Port

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Solenoid

Model No. FunctionValve

Connector Part No.

SolenoidVoltage

Power Usage(watts)

DutyRating

47-1123-21 Closed Center 85-5342-91 24 VDC 27.6100%

47-1123-40 P-Blocked Center 85-5342-91 24 VDC 27.6

231 50.8

50.847.8

ILMV471100 REV D

PBC CC

DIN 43650Solenoid ValveConnectors- Included

CETOP 3 Mounting Pattern

SolenoidModel No.

FunctionReplacement

Valve ConnectorSolenoidVoltage

Power Consumption

Duty Rating

Maximum Cycle Rate

47-1112-54Normally

Open85-5342-91 24VDC 28 Watts

100% 2000/hr47-1112-13

Normally Open

87-1123-00 115VAC* 29 Watts

47-1115-03Normally Closed

85-5342-91 24VDC 28 Watts

47-1115-05Normally Closed

87-1123-00 115VAC* 29 Watts

45

13745 21.8

ILMV711103 REV E

includedValve Connector

DIN 43 650Design A

NC NO

CETOP 3Mounting Pattern

Solenoid Valve: 2-Position, 3-Port For use with single acting systems. NOTE: Maximum system flow rate is 5.7 L/m for all VektorFlo® metric valves unless otherwise noted.


Solenoid Valve: 3-Position, 4-Port These valves can be used to control a double acting workholding system. (May also be used to control single acting systems) Provide improved control of clamping circuits with true poppet design. Multiple coil voltages available. Internal design promotes improved service life. Narrow width allows mounting of multiple valves on standard CETOP 3 manifolds. All valves have built-in P-Block check for fail safe multi-valve operation. Coils can be easily replaced.

* WARNING: Supplied with a rectified connector that must be used to insure proper valve function. The use of any other connector will void product warranty unless otherwise noted.

NOTE: Maximum system flow rate is 5.7L/m for all VektorFlo® metric valves unless otherwise noted. Excess flow voids warranty.

Directional Con trol Valves

Solenoid 2-Position, 3-Port / Solenoid 3 Position, 4-Port

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Directional Control Valves - Vektek · 2020-02-17 · Directional Control Valves Manual Seat Valve...

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