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Description
- Size 40 … 300
- Component series 1X
- Maximum operating pressure 16 bar
- Maximum flow 50000 l/min
Features
- For flange connection
- Flange connection according to DIN EN 1092-2 type 21
- 4 cracking pressures
Product description
Valves type L-S are check valves for pipeline installation. They are particularly suited for high flows.
The valves basically consist of pipeline installation housing (1), main spool (2), spring (3) and cover (4).
In direction P → T the main spool (2) can be opened by the flow against the spring force. In direction T → P, however, the line is locked leakage-free by the main spool (2).
Notice:
Observe flow direction and flow direction indicator.
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | ||
| L–S | F | – | 1X | / | 16 | * |
| 01 | Check valve | L–S |
| 02 | Size 40 | 40 |
| Size 50 | 50 | |
| Size 65 | 65 | |
| Size 80 | 80 | |
| Size 100 | 100 | |
| Size 125 | 125 | |
| Size 150 | 150 | |
| Size 200 | 200 | |
| Size 250 | 250 | |
| Size 300 | 300 | |
| 03 | Flange connection according to DIN EN 1092-2 type 21 | F |
| Cracking pressure | ||
| 04 | 0 bar (without spring, horizontal installation position; top cover) | 0 |
| 0.7 bar | 1 | |
| 1.5 bar | 2 | |
| 3 bar (not for size 250 and size 300) | 3 | |
| 05 | Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) | 1X |
| 06 | Maximum operating pressure 16 bar | 16 |
| Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") | ||
| 07 | NBR seals | no code |
| FKM seals | V | |
| 08 | Further details in the plain text | * |
Technical data
(For applications outside these values, please consult us!)
general
| Size | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||
| Weight | kg | 8 | 11 | 17 | 22 | 33 | 52 | 72 | 123 | 200 | 310 | |
| Installation position | any | |||||||||||
| Ambient temperature range | NBR seals | °C | -30 … +80 | |||||||||
| FKM seals | °C | -15 … +80 | ||||||||||
hydraulic
| Maximum operating pressure | Port P, X | bar | 16 |
| Maximum flow | l/min | 50000 | |
| Hydraulic fluid | see table "Hydraulic fluid" | ||
| Hydraulic fluid temperature range | NBR seals | °C | -30 … +80 |
| FKM seals | °C | -15 … +80 | |
| Viscosity range | mm²/s | 10 … 800 | |
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) | Class 20/18/15 | ||
| 1) | 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. For the selection of the filters, see www.boschrexroth.com/filter. |
| Hydraulic fluid | Classification | Suitable sealing materials | Standards | Data sheet | |
| Mineral oils | HL, HLP | NBR, FKM | DIN 51524 | 90220 | |
| Bio-degradable | Insoluble in water | HETG | 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) | FKM | ||||
| HFDR | FKM | ||||
| Containing water | HFC | NBR | ISO 12922 | 90223 | |
| Important information on hydraulic fluids:
| |||||
Diagrams/characteristic curves
(simulated with HLP46, ϑOil = 40 ±5 °C)
Size 40

Size 50

Size 65

Size 80

Size 100

(measured with HLP46, ϑOil = 40 ±5 °C)
Size 125

Size 150

Size 200

Size 250

Size 300
Symbols/Circuit diagrams
Without spring

With spring
Dimensions
Dimensions in mm

| 1 | Valve mounting bores |
| Size | ØD1 | ØD2 | ØD3 | ØD4 | ØD5 | ØD6 | H1 | H2 | B1 | B2 | L1 | L2 | L3 | |
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | ||
| 40 | 40 | 84 | 110 | 150 | 19 | - | 90 | 105 | 13 | 96 | 198 | ± 2 | 99 | 96 |
| 50 | 50 | 99 | 125 | 165 | 19 | - | 95 | 112 | 15 | 106 | 228 | ± 2 | 114 | 104 |
| 65 | 65 | 118 | 145 | 185 | 19 | - | 120 | 134 | 15 | 134 | 288 | ± 3 | 144 | 131 |
| 80 | 80 | 132 | 160 | 200 | 19 | - | 130 | 146 | 17 | 147 | 308 | ± 3 | 154 | 144 |
| 100 | 100 | 156 | 180 | 220 | 19 | - | 155 | 179 | 19 | 174 | 348 | ± 3 | 174 | 169 |
| 125 | 125 | 184 | 210 | 250 | 19 | 255 | 175 | 200 | 21 | - | 398 | ± 3 | 199 | - |
| 150 | 150 | 211 | 240 | 285 | 23 | 285 | 195 | 220 | 21 | - | 478 | ± 3 | 239 | - |
| 200 | 200 | 266 | 295 | 340 | 23 | 345 | 245 | 266 | 25 | - | 598 | ± 4 | 299 | - |
| 250 | 250 | 319 | 355 | 405 | 28 | 418 | 295 | 312 | 27 | - | 728 | ± 4 | 364 | - |
| 300 | 300 | 370 | 410 | 460 | 28 | 484 | 335 | 353 | 26 | - | 848 | ± 5 | 424 | - |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Valve mounting screws (separate order)
| Size | Quantity | Hexagon screw1) | Hexagon nut | MA [Nm]2) |
| 40 | 4 | ISO 4018 - M16 - 4.6 | ISO 4032 - M16 | 63 |
| 50 | 4 | ISO 4018 - M16 - 4.6 | ISO 4032 - M16 | 63 |
| 65 | 4 | ISO 4018 - M16 - 4.6 | ISO 4032 - M16 | 63 |
| 80 | 8 | ISO 4018 - M16 - 4.6 | ISO 4032 - M16 | 63 |
| 100 | 8 | ISO 4018 - M16 - 4.6 | ISO 4032 - M16 | 63 |
| 125 | 8 | ISO 4018 - M16 - 4.6 | ISO 4032 - M16 | 63 |
| 150 | 8 | ISO 4018 - M20 - 4.6 | ISO 4032 - M20 | 123 |
| 200 | 12 | ISO 4018 - M20 - 4.6 | ISO 4032 - M20 | 123 |
| 250 | 12 | ISO 4018 - M24 - 4.6 | ISO 4032 - M24 | 213 |
| 300 | 12 | ISO 4018 - M24 - 4.6 | ISO 4032 - M24 | 213 |
| 1) | For selection and design, DIN EN 1092-2 has to be observed |
| 2) | Tightening torques have been calculated with hexagon socket head cap screws ISO 4762 (galvanized) Friction coefficient μtotal = 0.09 0.14 |
Notice:
The specified tightening torques stated are guidelines when using screws with the specified friction coefficients and when using a manual torque wrench (tolerance ± 10%).
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