Modular cartridge valves type LIQV and LIDD0 pages

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Table H020-9/E

Modular cartridge valves type LIQV and LIDD
Flow control, ISO 7368 sizes 16 ÷ 63
LIQV and LIDD are flow control valves
composed by a 2 way cartridge housed
in a standard recess and by a functional
“cover” ቢ.
The cartridge is composed by a spool
(for LIQV) or poppet (for LIDD) ባ sliding
into a drilled sleeve ቤ; the position of
the spool or poppet, corresponding to
the regulation of the valve, is manually
set on the cover; cracking pressure
value depends on poppet spring.
These valves are available in standard
sizes 16 to 63 according to ISO 7368
(DIN 24342).
Flow up to 3500 l/min at Δp = 6 bar,
pressure up to 350 bar.
LIQV-2/K

1

LIDD-2

MODEL CODE FOR COVERS

LI

QV

–

1

/

*

**

/*

Cover according
to ISO 7368

Seals material:
omit for NBR (mineral oil
& water glycol)
PE = FPM

Flow control valve:
QV = with manual setting
DD = normally closed with stroke limiter

Size:
1 = 16
2 = 25
3 = 32 (*)
(*) only for LIDD

Series number

4 = 40 (*)
5 = 50 (*)
6 = 63 (*)
Options: see section ‫ݜ‬

For model code of spool or poppet, see section ‫ݙ‬

2

HYDRAULIC SYMBOLS AND CHARACTERISTICS

LIQV
Covers see section ‫ݗ‬
Spool see section ‫ݚ ,ݙ‬

LIDD

LIQV-2

LIQV-1

LIDD

290

490

490

-

-

-

Size

16

16

25

16

Max flow at Δp= 6 bar[l/min]

60

180

400

180 430 670 1400 2200 3500 160 330 530 1100 1700 2600 170 380 560 1300 2000 2800 130 300 480 940 1500 2200

Poppet see section ‫ݚ ,ݙ‬

Max pressure

[bar]

32
25

32

33
40

50

63

16

25

32

43

42
40

50

63

16

25

32

40

50

63

16

25

32

40

50

63

350 bar at port A, B, X

H020