Directional spool valves รุ่น H-.WMDAH

WHH to WPH
Directional spool valves, pilot operated, with mechanical-hydraulic actuation (rotary knob, lockable) รุ่น H-.WMDAH

รายละเอียด Directional spool valves, pilot operated, with mechanical-hydraulic actuation (rotary knob, lockable) รุ่น H-.WMDAH

  • Size 10, 16, 25 (4W.H22), 25 (4W.H25), 32
  • Component series 4X, 7X, 6X
  • Maximum operating pressure 350 bar
  • Maximum flow 1100 l/min

Features

  • Type of actuation: Rotary knob, lockable
  • 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
H –   WMDAH         / F 6         /           *

01 up to 350 bar 1; 2) H –
02 3-way version 3
4-way version 4
Types of actuation
03 mechanical-hydraulic: Rotary knob, lockable WMDAH
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 Without spring return with detent F
Pilot control valve
09 with mechanical, manual actuation 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 Technical data!
    • to prevent inadmissibly high pressure peaks, a “B10” throttle insert must be provided in port P of the pilotcontrol valve (see Pilot oil supply).
    • in connection with version “H”, the “D3” pressure reducing valve must be installed in addition.
  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
H-4WMDAH 32 E18-6X/F6/B10V SO10 R900770742
H-4WMDAH 32 E18-6X/F6QMBG24/B10V SO10 R901015253

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