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Proportional- pressure relief valves

eleCTrICal SPeCIFICaTIONS

hydraUlIC SPeCIFICaTIONS

Construction

Proportional solenoid, wet pin push type,

Standard nominal voltage Limiting current

pressure tight

UN = 12 VDC

UN = 24 VDC

IG = 1320 mA

IG = 660 mA

Relative duty factor

100% ED/DF (see data sheet 1.1-430)

Protection class acc. to EN 60529

Connection version D:IP 65 J: IP 66 G:IP 67 and 69K

Other electrical specifications see data sheet 1.1-173 (W) 1.1-174 (M)

Fluid Contamination efficiency

Viscosity range Fluid temperature Peak pressure

Mineral oil, other fluid on request ISO 4406:1999, class 18/16/13 (Required filtration grade ß 6…10 75) see data sheet 1.0-50/2 12 mm2/s…320 mm2/s

  • -

    20...+70 °C

= 400 bar Tmax = pP+15 bar pmax p

Nominal pressure ranges pN=100 bar, 200 bar, 275 bar, 350 bar

Volume flow

Q = 5…230 l/min

Leakage volume flow

see characteristics

Repeatability

2%

Hysteresis

4%

at optimal dither signal

CharaCTerISTICS Oil viscosity υ = 30 mm2/s

p = f (Q)

Pressure volume flow characteristics (Maximal adjustable pressure)

p = f (Q)

Pressure volume flow characteristics (Minimal adjustable pressure)

p [bar] 400 K0731 1

300

200

100

0

  • 0

    50 100 150 200

p = f (l)

Pressure adjustment characteristics [at Q = 30 l/min (static)]

P

N = 350 bar

P

N = 275 bar

P

N = 200 bar

P

N = 100 bar

250 Q [l/min]

p [bar] 20 K0732 1

15

10

5

0

  • 0

    50 100 150 200

QL = f (p) Leakage volume flow characteristics

P

N = 350 bar

PN = 275 bar PN = 200 bar

P

N = 100 bar

250 Q [l/min]

p [bar] 400 K0733 1

300

200

100

0

0

10

20

30

40

50

60

70

80

P

N = 350 bar

P

N = 275 bar

P

N = 200 bar

P

N = 100 bar

90 100

l [ % ]

Q [cm3/min] 400 K0734 1

300

200

100

0

  • 0

    50

100

150

200

250

300

350

p [bar]

Tel. +41 33 672 72 72

E-mail: sales@wandfluh.com

Fax +41 33 672 72 12

Internet: www.wandfluh.com

Wandfluh AG

Postfach CH-3714 Frutigen

Illustrations not obligatory Data subject to change

Data sheet no.

2.3-551E 2/3 Edition 11 25

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