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CS Hydraulic Cylinder Flow Control Valve Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min

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CS Hydraulic Cylinder Flow Control Valve Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min

China CS Hydraulic Cylinder Flow Control Valve  Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min supplier

Large Image :  CS Hydraulic Cylinder Flow Control Valve Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min

Product Details:

Place of Origin: China
Brand Name: Hengli
Model Number: Type Z4WEH/Z4WH22 ..L5X

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Price: Negotiable
Packaging Details: Wooden packing
Delivery Time: 5-30 days upon order quantity
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 50 set / 30 days
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Detailed Product Description
Material: C.S/SS Seal: NBR/FKM
Pressure: 315 Bar Max. Flow: 650 L/min
Environment Temperature Range: -30 To +50 (NBR Seals)/-20 To +50 (FKM Seals) ℃

4/2 and 4/3 way isolator valve-Type Z4WEH/Z4WH22 ..L5X
Features:
– Directional spool valve, pilot operated
– 2 types of actuation
Electrohydraulic (type WEH)
Hydraulic (type WH)
– Function as shut-off through valve or shut-off/through valve/short-circuit valve
– Free flow in P and T in every spool position
– Porting pattern to ISO4401-08-08-0-05
– Wet-pin DC or AC voltage solenoids, optional
– Manual override, optional
 
Function and configuration
Valves of type Z4WEH are directional spool valves with electrohydraulic actuation. They control the start and stop of a flow.
These directional valves basically consist of the main valve with housing (1), main control spool (2), one or two return springs (3.1 and 3.2), as well as pilot valve (4).
Main control spool (2) in the main valve is held by springs or through pressurization in the zero or initial position. In the initial position, the two spring chambers (6) and (7) are connected pressure less to tank via pilot channel (4). The pilot valve is supplied with pilot oil via pilot line (11). The supply can be provided internally or externally (externally via port X in the sandwich plate).
When the pilot valve is operated, e.g. solenoid "a", the pilot spool (not shown on the drawing) is pushed to the left and spring chamber (7) is consequently pressurized to pilot pressure. Spring chamber (6) remains pressure less.
The pilot pressure acts on the left side of main control spool (2) and pushes it against spring (3.1). In the main valve the ports are connected on the component side and on the plate side depending on the symbol.
When the solenoid is de-energized, the pilot spool returns to its initial position. Spring chamber (7) is unloaded to tank.
The pilot oil is drained internally from spring chamber (7) via pilot valve (4) into channel T (Y).
An optional manual override (5) allows the pilot spool to be moved without energization of the solenoid.
 
Throttle insert
The use of throttle insert (10) is required, if the pilot oil supply in channel P of the pilot valve is to be limited.
Throttle insert (10) is to be installed in channel P of the pilot valve.
CS Hydraulic Cylinder Flow Control Valve  Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min
                                                                1= component side
                                                                2 = plate side
CS Hydraulic Cylinder Flow Control Valve  Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min
Pilot oil supply
External: 8 closed Internal: 8 open
9 open 9 closed
Pilot oil port "X" only possible with Z4WEH 22 ... .
 
Spool symbols
Type Z4WEH ( ① = component side, ② = plate side)
Ordering code                   Version "ET"                                                         Version "T"
CS Hydraulic Cylinder Flow Control Valve  Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min
 
Type Z4WH ( ① = component side, ② = plate side)
 Ordering code                                                                         Version "No code"
CS Hydraulic Cylinder Flow Control Valve  Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min
 
Specification
CS Hydraulic Cylinder Flow Control Valve  Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min
 
Technical data

Fixing positionOptional
Environment temperature range-30 to +50 (NBR seal)
-20 to +50 (FKM seal)
WeightSingle solenoidkg20.8
Double solenoidskg21.1
Valve with hydraulic actuationkg20
Switching time adjustmentkg0.8
Pressure reducing valvekg0.4
Plate for version “T”kg0.5
Max.operating pressurePort A, B, X, Ybar315
Port Tbar160 (version “WEH” with AC solenoid)
315 (version “WH”)
210 (version “WEH” with DC solenoid)
Port Pbar315
External pilot oil supply
Internal pilot oil supplybar210 (without pressure reducing valve)
315 (with pressure reducing valve)
Max. flow-rateL/min650
FluidMineral oil suitable for NBR and FKM seal
Phosphate ester for FKM seal
Fluid temperature range-30 to +80 (NBR seal)
-20 to +80 (FKM seal)
Viscosity rangemm2/s10 to 500
Minimum pilot pressurebar12
Maximum pilot pressurebar250
Cleanliness class to ISO codeMaximum permissible degree of contamination of the pressure fluid is to ISO 4406 (C) class 20/18/15

Caution: with electrical connections the protective conductor (PE) must be connected according to the relevant regulations.
 
Unit dimensions (dimensions in mm)
Type Z4WEH22
CS Hydraulic Cylinder Flow Control Valve  Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min
Type Z4WEH22
CS Hydraulic Cylinder Flow Control Valve  Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min
 
1 Nameplate of complete valve
2 Nameplate of pilot valve
3 Main valve
4 Port X (G1/4) for external pilot control
5 Pressure reducing valve "D3" (must be used in the case of pilot pressures above 210 bar; only with version "Z4WEH")
6 Switching time adjustment (for throttle check valve);
Depending on the installation position, meter-in or meter-out control (illustration: meter-in control)
7 R-ring plate
8 Pilot valve
   – Type 4WE 6 J.. for symbol E62
   – Type 4WE 6 Y.. for symbol E63
9 Solenoids "a" and "b" (can be rotated 90°)
10 Dimension for valve with manual override "N"; dimensions () for valve with AC solenoid
11 Identical seal rings for ports A, B, P, T (main valve)
12 Identical seal rings for ports A, B, P, T
13 Pilot oil subplate
14 Space required to remove mating connector
15 Locating pin
16 Valve mounting bores
     Valve mounting screws (separate order)
     6 hexagon socket head cap screws
     ISO 4762 - M10 - 10.9
 
Stroke adjustment, attachment options (dimensions in mm)
CS Hydraulic Cylinder Flow Control Valve  Z4WEH/Z4WH22 ..L5X 315 bar 650 L/min
                                                   17 Locknut 24 A/F
                                                   18 Adjustment spindle, hexagon socket 6 A/F
 
The stroke adjustment feature limits the stroke of the main spool. The spool stroke can be reduced by loosening locknut (19) and turning adjustment spindle (20) clockwise. The control chamber must be pressure less during this process.
Stroke 9.5 mm (1 turn = 1.5 mm stroke)

Attachment
options

Ordering
code

L1L2

Stroke adjustment
on side A and B

1094248

Stroke adjustment
on side A

1194 

Stroke adjustment
on side B

12 248

 
 
 
 
 
 
 
 
 
 
 
 
 
 

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