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Description
- Standard series
- Size 16 … 100
- Component series 6X, 7X
- Maximum operating pressure 420 bar
- Maximum flow 25000 l/min
Features
- For set-up of a directional valve
- With integrated shuttle valve
- Check valve circuit
Product description
load errorType code
load errorTechnical data
general
| Size | 16 | 25 | 32 | 40 | 50 | 63 | 80 | 100 | ||
| Weight | kg | 1.2 | 2.3 | 4 | 7.4 | 10.5 | 21 | 27 | 42 | |
| Ambient temperature range | NBR seals | °C | -30 … +60 | |||||||
| FKM seals | °C | -20 … +60 | ||||||||
| MTTFD values according to EN ISO 13849 1) | Years | 150 | ||||||||
| 1) | For further details, see data sheet 08012 |
hydraulic
| Size | 16 | 25 | 32 | 40 | 50 | 63 | 80 | 100 | ||
| Maximum operating pressure | Port X 1) | bar | 315 350 420 | |||||||
| Port Z1 1) | bar | 315 350 420 | ||||||||
| Port Y | depending on the maximum tank pressure of the attached directional valve | |||||||||
| Maximum flow 2) | l/min | 25000 | ||||||||
| Hydraulic fluid | see table "Hydraulic fluid" | |||||||||
| Hydraulic fluid temperature range | NBR seals | °C | -30 … +80 | |||||||
| FKM seals | °C | -20 … +80 | ||||||||
| Viscosity range | mm²/s | 2.8 … 500 | ||||||||
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 3) | Class 20/18/15 | |||||||||
| 1) | dependent on the attached directional valve |
| 2) | NG-dependent; see characteristic curves |
| 3) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. |
| Hydraulic fluid | Classification | Suitable sealing materials | Standards | Data sheet | |
| Mineral oils | HL, HLP, HLPD, HVLP, HVLPD | NBR, FKM | DIN 51524 | 90220 | |
| Bio-degradable 1) | Insoluble in water | HETG | NBR, FKM | ISO 15380 | 90221 |
| HEES | FKM | ||||
| Soluble in water | HEPG | FKM | ISO 15380 | ||
| Flame-resistant | Water-free | HFDU (glycol base) | FKM | ISO 12922 | 90222 |
| HFDU (ester base) 1) | FKM | ||||
| Containing water 1) | HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) | NBR | ISO 12922 | 90223 | |
| Important information on hydraulic fluids:
| |||||
| 1) | Not recommended for corrosion-protected version "J3" (contains zinc) |
(For applications outside these values, please consult us!)
Symbols/Circuit diagrams
LFA . KWB… (NG16 … 32)
LFA . KWB… (NG40 and 50)
LFA . KWB… (NG63)
LFA . KWB… (NG80 … 100)
Dimensions
Sizes 16 … 50
Dimensions in mm
| 1 | Name plate at NG16, 25, 32 |
| 2 | Name plate at NG40 and 50 |
| 3 | Ports Y and Z1 optionally as threaded ports at NG40 and NG50 |
| 4 | Plug screw type KWB |
| 5 | Plug screw type KWA |
| 6 | Shuttle valve |
| 7 | M6 at NG16 and 40, M8 x 1 at NG50 |
| 8 | Directional spool valve type 4WE 6 D… (pilot control valve), separate order |
| 9 | Directional seat valve type M-3SEW 6 … (pilot control valve), separate order |
| 10 | Porting pattern according to ISO 4401-03-02-0-05 (mounting thread for version "/12" see data sheet 08936) |
| NG | D1 | H1 | H2 | H3 | H4 | H5 | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 |
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | ||
| 16 | - | 40 | 17 | 15 | - | - | 65 | 80 | 36.5 | - | 17 | 47.5 | - | 4 |
| 25 | - | 40 | 17 | 24 | - | - | 85 | 85 | 45.5 | - | 27 | 64 | - | 4 |
| 32 | - | 50 | 21.5 | 28 | - | - | 100 | 100 | 50 | - | 34.5 | 71.5 | - | 4 |
| 40 | G1/2 | 60 | 30 | 32 | 30 | 30 | 125 | 125 | 62.5 | 53 | 47 | 84 | 62.5 | 6 |
| 50 | G1/2 | 68 | 32 | 34 | 32 | 50 | 140 | 140 | 72 | 60 | 54.5 | 91.5 | 70 | 6 |
Size 63
Dimensions in mm
| 1 | Name plate |
| 2 | Ports Y and Z1 optionally as threaded ports |
| 3 | Plug screw M8 x 1 at type KWB |
| 4 | Plug screw M8 x 1 at type KWA |
| 5 | Shuttle valve |
| 6 | Directional spool valve type 4WE 10 D… (pilot control valve), separate order |
| 7 | Directional seat valve type M-3SEW 10 … (pilot control valve), separate order |
| 8 | Porting pattern according to ISO 4401-05-04-0-05 (mounting thread for version "/12" see data sheet 08936) |
Size 80 ... 100
Dimensions in mm
| 1 | Name plate |
| 2 | Ports Y and Z1 optionally as threaded ports |
| 3 | Plug screw for type KWB |
| 4 | Plug screw for type KWA |
| 5 | Shuttle valve |
| 6 | Directional spool valve type 4WE 10 D… (pilot control valve), separate order |
| 7 | Directional seat valve type M-3SEW 10 … (pilot control valve), separate order |
| 8 | Porting pattern according to ISO 4401-05-04-0-05 (mounting thread for version "/12" see data sheet 08936) |
| NG | D1 | H1 | H2 | H3 | H4 | H5 | L1 | L3 | L6 |
| mm | mm | mm | mm | mm | mm | mm | mm | mm | |
| 80 | 250 | 100 | 19.5 | 45 | 60 | 52 | 55 | 6.5 | 6.5 |
| 100 | 300 | 110 | 27 | 52.5 | 70 | 62 | 62 | 5 | 2 |
Mounting screws (included in the scope of delivery)
| Hexagon socket head cap screws ISO 4762 - 10.9-flZn/nc/480h/C 1) | ||
| Size | Quantity | Tightening torque MA in Nm ±10 % |
| 16 | 4 | 30 |
| 25 | 4 | 100 |
| 32 | 4 | 240 |
| 40 | 4 | 480 |
| 50 | 4 | 480 |
| 63 | 4 | 1600 |
| 80 | 8 | 800 |
| 100 | 8 | 1600 |
| 125 | 8 | 3100 |
| 160 | 12 | 5000 |
| 1) | Hexagon socket head cap screws UNC, see data sheet 08936 |
Notices:
- The specified tightening torques stated are guidelines when using screws with the specified friction coefficients and when using a manual torque wrench (tolerance ± 10%).
- The specified tightening torques were calculated with total friction coefficient μtotal = 0.09 ... 0.14; adjust in case of modified surfaces.
- Supplied mounting screws are only suitable for direct assembly on a block. If an intermediate cover is used, mounting screws have to be designed accordingly longer.
Connection dimensions according to ISO 7368
Size 16 ... 63
Dimensions in mm
Size 80 ... 100
Dimensions in mm
| 1 | Bore for locating pin |
| 2 | 80 mm only at control cover for directional valve set-up NG16 (axis X–Y bore) |
| NG | 16 | 25 | 32 | 40 | 50 | 63 | 80 | 100 | |
| ØD5 1) | M8 | M12 | M16 | M20 | M20 | M30 | M24 | M30 | |
| ØD6 | mm | 4 | 6 | 8 | 10 | 10 | 12 | 16 | 20 |
| ØD7H13 | mm | 4 | 6 | 6 | 6 | 8 | 8 | 10 | 10 |
| H4 | mm | 20 | 25 | 35 | 45 | 45 | 65 | 50 | 63 |
| L1 | mm | 65 80 | 85 | 102 | 125 | 140 | 180 | 250 | 300 |
| L2 | mm | 46 | 58 | 70 | 85 | 100 | 125 | 200 | 245 |
| L3 | mm | 23 | 29 | 35 | 42.5 | 50 | 62.5 | - | - |
| L4 | mm | 25 | 33 | 41 | 50 | 58 | 75 | - | - |
| L5 | mm | 10.5 | 16 | 17 | 23 | 30 | 38 | - | - |
| 1) | Mounting thread for version "/12" see data sheet 08936 |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Information
load errorDownloads
 | 2-way cartridge valves, directional functions Data Sheet | RE21010 | 2017-05-01 | English | PDF | 3.2MB Product Groups: Logic elements - directional function Type LC (cartridge valves), type LFA (control cover) |
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