力士乐比例换向阀(3)

力士乐 比例换向阀

Ordering code and scope of delivery

Electro-hydraulic actuation = Z Size Size 10 = 10Size 16 = 16Size 25 = 25Size 32 = 32

Symbols T

P a

b

a 0b A B a 0

a 0T

P A B = E E1- = E3 = W6- W8-

= W9- = EA

= W6A

For control spools E1- and W8-:

P → A: q V max

B → T: q V /2P → B: q V /2

A → T: q V max For control spools E3- and W9-:

P → A: q V max

B → T: Blocked P → B: q V /2

A → T: q V max (differential circuit, piston top at port A)Important: In spool position "0", control spools W6-, W8-, W9-, W6A have a connec-tion from A → T and

B → T with approx. 2 % of the relevant nominal cross-section.

M = 1) NBR seals V =

FKM seals Important:

Observe compatibil-ity of seals with hydraulic

fluid used!D3 =

With pressure reducing

valve (preset)Pilot oil supply

and return

no code = Pilot oil supply external,pilot oil return external E = Pilot oil supply internal,pilot oil return external ET = Pilot oil supply internal,pilot oil return internal T =

Pilot oil supply external,pilot oil return internal For details, see page 17.

Surface protection

J =

Seawater-resistant, galvanically coated

XE =

Explosion protection, "increased safety",for details see information on the explosion protection,

page 7

Supply voltage of the control electronics

G24 = 24 V direct voltage

6E = Proportional solenoid

7X =

Component series 70 to 79

(70 to 79: Unchanged installation and connection dimensions)

Rated flow 25 = 25 l/min (size 10) 50 = 50 l/min (size 10) 85 = 85 l/min (size 10) 100 = 100 l/min (size 16)150 = 150 l/min (size 16) 220 = 220 l/min (size 25) 325 = 325 l/min (size 25)

360 = 360 l/min (size 32) 520 =

520 l/min (size 32)

Characteristic curves, see pages 9 to 12

4WRZ

7X 6E G24XE J D3

1) Suitable for mineral oils (HL, HLP) according to DIN 51524

Included in the scope of delivery:

Valve operating instructions with declaration of conformity in Part III