VMY UK

Catalogue HY11-3500/UK

Pilot Operated Proportional Propor tional Reducing Valve Valve

Characteristics

Series VMY

Proportional pressure p ressure reducing valves of the series VMY allow the variable adjustment of the reduced pressure from 0 bar up to the nominal pressure. The valve consists of a spool type main stage and a proportionally operated pilot stage. The desired pressure can be variably set corresponding to the command signal specified on the amplifier. The proportional solenoid converts the current of the amplifier into force on the valve poppet of the pilot stage. Typical applications are pressure systems, test equipment, or counterweight systems. The optimum performance can be achieved in combination with the digital amplifier module PCD00A-400 for open loop systems or with PWDXXA-40* for closed loop systems.

VMY*K06

4

Function VMY*K06 With the proportional solenoids de-energized the main spring forces the main spool into the neutral position. Port Port A is connected to port T. Thus the reduced pressure only depends on the back pressure pressure in the external external drain pipe and/or the tank pressure and can accordingly be reduced down to 0 bar. The pressure present in the P line delivers the pilot oil to the pilot stage via a flow control valve. When the proportional solenoid is energized, the pilot pressure is increased in the pilot pressure area, and the main spool moves against the spring until the connection P - A opens. The regulation of the reduced pressure on connection A takes place by the constant comparison of the actual pressure and the reference pressure of the pilot stage.

VMY*K10 The valve spool is designed so that the connection B-A is open in the neutral position and is closed in the working position.

VMY*K06N

VMY*K10

VMY*K06

Neutral position

Por t B has to be blocked VMY UK.INDD RH 20.07.2017

Port X has to be blocked

VMY*K10


Pilot Operated Proportional Reducing Valve

Ordering Code / Technical Data

Series VMY

Ordering code

VMY

K

1

Reducing Pressure Proportional Nominal valve stages solenoid size 9 V / 2.5 A Code

4

Pilot

Seals

P Design High series pressure (not required for channel ordering)

Pressure stages

064

up to 64 bar

100

up to 100 bar

160

up to 160 bar

210

up to 210 bar

315

up to 315 bar

Code

Nominal size

06

NG06

10

NG10

Code N

2)

V

Seals NBR FPM

Pilot oil Code

Size

omit

10

N

1)

T

Pilot

Drain

Internal Internal

pmin [bar] 3-4

06

Internal External 0.5 - 1

06

Internal Internal

1-2

Technical data General Design Nominal size Interface Actuation Mounting position Ambient temperature MTTFD value Weight Hydraulics Max. operating pressure

Pressure stages Nominal flow Fluid Viscosity permitted recommended Fluid temperature Filtration Linearity Repeatability Hysteresis Response time Electrical Duty ratio Protection class Nominal voltage Max. current Nom. current Ambient temperature Coil resistance Solenoid connection Power amplifier, recommended 1)

Connection on port Y1 or Y2. Not for NG06.

2)

VMY UK.INDD RH 20.07.2017

3 way proportional reducing valve, pilot operated, spool design 06 (DIN NG06/CETOP 03/NFPA D03) 10 (DIN NG10/CETOP 05/NFPA D05) Subplate mounting according to ISO 5781 Proportional solenoid unrestricted [°C] -20 ... +60 [years] 75 [kg] 2.8 5

[cSt] / [cSt] /

Size 06: [bar] Ports P, A 315; Port T, Y depressurized; port B has to be blocked Size 10: [bar] Ports A, B 350; Port Y depressurized; port X has to be blocked [bar] 64, 100, 160, 210, 315 [l/min] 40 160 Hydraulic oil according to DIN 51524 [mm²/s] 20 ... 400 [mm²/s] 30 ... 80 [°C] -20...+70 (NBR: -25...+70) ISO 4406 (1999); 18/16/13 [%] See characteristic pressure curves ±3.5 at > 15 % pnom. [%] <±2 [%] <3 [ms] <150 <200 [%] 100 ED IP65 in accordance with EN 60529 (with correctly mounted plug-in connector) [VDC] 9 [A] 2.7 [A] 2.5 [°C] -20...+70 [Ohm] -2.1 (at 20 °C) Connector as per EN 175301-803 PCD00A-400



Characteristic Curves

Series VMY

NG06 Characteristic pressure lines p = f (Uset) Setting range max. 64 bar ]

Setting range max. 210 bar ]

65 r a

220 r a b[

b[ p p e

e

60 r u

r

200 u

s s s s e e r P

r P

55

180

50 160

45

4

140

40

35

120

30

100

25

80

Q = 0 l/min

20 60

Q = 0 l/min

typical characteristic curve

15 typical characteristic curve

10

40

20

5

0

0

1

1

250

2

3

4

5

6

0 0

7

8 9 10 Set value Uset[V] 500 750 1000 1250 1500 1750 2000 2 250 2500 Solenoid current IS [mA]

1

1

2

3

4

5

6

7 8 9 10 Set value Uset[V] 250 500 750 1000 1250 1 500 1 750 2000 2 250 2500 Solenoid current Is [mA]

NG06 p/Q characteristics Setting range max. 64 bar ]

100 r a b[

Flow A - T p

Flow P - A

e

80 r

2500 mA u s s

60 e r

1875 mA P

40 1250 mA 20

40

30

20

All characteristic curves measured with HLP46 at 50 °C. VMY UK.INDD RH 20.07.2017

625 mA

pmin

0 mA

10

0

10

20

30 40 Flow Q [l/min]




Series VMY

NG06 p/Q characteristics Setting range max. 100 bar ]

120 r a b[

2500 mA

100 p

Flow A - T

e r u

Flow P - A 1875 mA

80 s s e r P

60 1250 mA

40

625 mA

20 0 mA

40

4

pmin

30

20

10

0

10

20


Setting range max. 160 bar ] r a b[ p e r u s s e r P

200 180 160 140 120 100 80

2500 mA Flow A - T

Flow P - A 1875 mA

1250 mA

60 40 20 0

625 mA 0 mA

40

pmin

30

20

10

0

10

20



260 r a [b

2500 mA

220 p e r u

Flow A - T

180 s

Flow P - A

s

1875 mA e r P

140 1250 mA

100 60 20

0 mA

40

625 mA

pmin

30

20

10

0

10

20



340 [b

300 e

260

a

r p r u s

2500 mA Flow A - T

Flow P - A 1875 mA

220 s e r P

180 1250 mA

140 100 60

625 mA

20 40

pmin

0 mA

30

20


10

0

10

20




Characteristic Curves / Accessories

Series VMY

Step response Typical curve

4

All characteristic curves measured with HLP46 at 50 °C.

Accumulator plate H06VMY-1350





Series VMY

NG10 p/Q characteristics for pilot oil supply from high pressure channel P Setting range max. 64 bar

4 Setting range max. 100 bar

Setting range max. 160 bar

Setting range max. 210 bar




Dimensions

Series VMY

NG06

Port Y: G1/4 VMY*K06T: Ports Y1 and Y2: closed VMY*K06N: Drain port Y1 or Y2 Port Y1 closed, Port Y2 opened

Surface finish

Bolt kit FPM BK375

4x M5x30 ISO 4762-12.9

7.6 Nm ±15 %

Mounting pattern ISO 5781-03-04-0-00 The connection B must be locked onto the subplate for standard applications.


SK-VMY-L06-V

4



Dimensions

Series VMY

NG10

4

Surface finish

Bolt kit FPM BK389

4x M10x50 ISO 4762-12.9

Mounting pattern ISO 5781-06-07-0-00 1)

1)

Deviating from ISO the Y port has Ø 14.7 instead of Ø 4.8.


63 Nm ±15 %

SK-VB/VM-A10V

VMY UK

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