Directional spool valves รุ่น WHH

WHH to WPH
Directional spool valves, pilot operated, with hydraulic-hydraulic actuation รุ่น WHH

รายละเอียด Directional spool valves, pilot operated, with hydraulic-hydraulic actuation รุ่น WHH

  • Size 10, 16, 25 (4W.H22), 25 (4W.H25), 32
  • Component series 4X, 7X, 6X
  • Maximum operating pressure 280 bar
  • Maximum flow 1100 l/min

Features

  • Type of actuation: pneumatic-hydraulic
  • For subplate mounting
  • Porting pattern according to ISO 4401 and NFPA T3.5.1 R2-2002
  • Subplates according to data sheets 45054 to 45060 (separate order)
  • Spring centering, spring end position or hydraulic end position
  • Optional auxiliary operating device
  • Switching time adjustment, optional
  • Preload valve in channel P of the main valve, optional
  • Stroke setting at main spool, optional
  • Stroke setting and/or end position control, optional
  • Inductive position switch and proximity sensors (contactless)

Type code

01020304050607 080910111213 141516171819
    WHH         /   6         /           *

01 up to 280 bar no code
02 3-way version 3
4-way version 4
Types of actuation
03 hydraulic-hydraulic WHH
Size
04 NG10 10
NG16 16
NG25 (type 4W.H 22 .7X/…) 22
NG25 (type 4W.H 25 .6X/…) 25
NG32 32
Spool return in the main valve
05 by means of springs no code
Hydraulic 3) H
06 Spool symbols see symbols
Component series
07 40 to 49 – NG10 (40 to 49: unchanged installation and connection dimensions) 4X
60 to 69 – NG25 (4W.H 25.) and NG32 (60 to 69: unchanged installation and connection dimensions) 6X
70 to 79 – NG16 (from series 72) and NG25 (4W.H 22.) (70 to 79: unchanged installation and connection dimensions) 7X
Spool return in the pilot control valve with 2 spool positions only possible with spools B, C, D and hydraulic control spool return in the main valve:
08 With spring return no code
Without spring return O
Without spring return with detent OF
Pilot control valve
09 with fluidic actuation (standard valve) 6
10 Without manual override no code
11 External pilot oil supply, external pilot oil return 1) no code
Pilot oil supply internal, pilot oil return external 1; 2) E
Pilot oil supply internal, pilot oil return internal 2) ET
External pilot oil supply, internal pilot oil return 1) T
12 Without switching time adjustment no code
Switching time adjustment as supply control S
Switching time adjustment as discharge control S2
Spool position monitoring
13 Without position switch no code
Monitored spool position “a” QMAG24
Monitored spool position “b” QMBG24
Monitored spool position "a" and "b" QMABG24
monitored rest position QM0G24
14 Stroke setting see stroke setting in type key table
Throttle insert
15 Without throttle insert no code
Throttle Ø 0,8 mm B08
Throttle Ø 1,0 mm B10
Throttle Ø 1.2 mm B12
Throttle Ø 1.5 mm B15
Throttle Ø 2.0 mm B20
Throttle Ø 2.5 mm B25
preload valve (not for NG10) 4)
16 Without preload valve no code
With preload valve (pö = 4.5 bar) P4,5
17 Without pressure reducing valve no code
With pressure reducing valve D3 4)
Seal material
18 NBR seals no code
FKM seals (other seals upon request) V
Observe compatibility of seals with hydraulic fluid used.
19 Information in the plain text *
  1. External pilot oil supply X or return Y:
    • with NG10, version SO30 has to be used if sandwich plates are installed. The identification SO30 has to be used at the end of the type designation (sandwich plate).
    • the maximum admissible operating parameters of the pilot control valve must be observed!
    • observe the maximum pilot pressure!
  2. Internal pilot oil supply (version “ET” and “E”):
    • minimum pilot pressure: please observe the Technical data!
    • to prevent inadmissibly high pressure peaks, a “B10” throttle insert must be provided in port P of the pilot control valve (see Pilot oil supply).
  3. 2 spool positions (hydraulic end position): only piston C, D, Y, K ,Z
  4. only in connection with throttle insert “B10”
pSt Pilot pressure
ppilot min Pilot pressure, minimum
ptank Tank pressure
Cracking pressure
Preferred types and standard units are contained in the EPS (standard price list).
ModelCode
4WHH 10 HD30-4X/OF6ET/B10 R901185232
4WHH 10 HD42-4X/OF6ET/B06 R900951889
4WHH 10 HD42-4X/OF6ET/N06 R900963280
4WHH 16 HC7X/OF6E/B15P4,5 R900244062
4WHH 16 HC7X/OF6ET/B10D3 R901422786
4WHH 16 HD7X/6QMABG24 R901295994
4WHH 16 HD7X/6QMABG24 SO57-336 R976718678
4WHH 25 D6X/6ET/B10D3 R901300479
4WHH 25 HD6X/OF6/10 R901375655
4WHH 25 HD6X/OF6E/B10 R901253828
4WHH 32 Y6X/6ET R901431148
4WHH16J7X/6/A R978909798
4WHH22E7X/T SO8 R978903900

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