Modular cartridge valves type LIQV and LIDD
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Modular cartridge valves type LIQV and LIDD - 1

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 MODEL CODE FOR COVERS 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 For model code of spool or poppet, see section ‫ݙ‬ HYDRAULIC SYMBOLS AND CHARACTERISTICS LIQV Covers see section ‫ݗ‬ Spool see section ‫ݚ ,ݙ‬

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Modular cartridge valves type LIQV and LIDD - 2

MODEL CODE FOR SPARE SPOOLS AND POPPETS, see section ‫ ݚ‬for function /* Seals material: omit for NBR (mineral oil & water glycol) PE = FPM Cartridge according to ISO 7368 Size, the same of relevant cover: 16 = 16 40 = 40 (*) 25 = 25 50 = 50 (*) 32 = 32 (*) 63 = 63 (*) (*) only for LIDD Series number Type of spool (only for LIQV): 290 = for LIQV-1 490 = for LIQV-1 and LIQV-2 Type of poppet (only for LIDD): 32, 33 (size 16…63) 42, 43 (size 16…63) = as 32, 33 but with dumping nose Spring cracking pressure (only for poppet): 1 = 0,3 bar for poppet 32, 42 1 = 0,6 bar for poppet 33, 43 2 = 1,5...

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Modular cartridge valves type LIQV and LIDD - 3

Flow [l/min] Flow [l/min] Flow [l/min] COVER INTERFACE DIMENSIONS [mm]

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Modular cartridge valves type LIQV and LIDD - 4

LIQV COVER DIMENSIONS [mm] ቢ /K version wit knob locking key Fastening Tightening Weight torque [Kg] bolts (1) [Nm] (1) Hexagon socket head screw according to DIN 912 class 12.9 LIDD COVER DIMENSIONS [mm] Fastening Tightening Weight torque bolts (1) [Kg] [Nm] (1) Hexagon socket head screw according to DIN 912 class 12.9

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