Доступно к заказу
Цена по запросу
И выбери подходящего.
Description
- Size 25 … 100
- Component series 1X
- Maximum operating pressure 350 bar
- Maximum flow 2000 l/min
Features
- Cartridge valve
- Pilot operated prefill valve (check valve)
- Block or cylinder installation
Product description
Type "SEF . Z" (with optional cover type "LFF")
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | ||
| SFE | 0 | – | 1X | / | M | * |
| 01 | Prefill valves | SFE |
| 02 | Size 25 | 25 |
| Size 32 | 32 | |
| Size 40 | 40 | |
| Size 50 | 50 | |
| Size 63 | 63 | |
| Size 80 | 80 | |
| Size 100 | 100 | |
| 03 | Block installation | P |
| Cylinder installation 1) | Z | |
| 04 | without pre-decompression | 0 |
| 05 | Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) - Size 10 | 1X |
| Seal material | ||
| 06 | NBR seals | M |
| Observe compatibility of seals with hydraulic fluid used. | ||
| 07 | Further details in the plain text | * |
1) Control cover type “LFF” incl. matching mounting kit (separate order, see page 8):
With NG25 and 32, alternative control covers type "LFA.D-7X/....F…" (see RE 21010) may be used.
Technical data
general
| Size | 25 | 32 | 40 | 50 | 63 | 80 | 100 | |
| Weight | kg | 0.53 | 1.05 | 1.94 | 3.2 | 6.48 | 10.3 | 22.15 |
| Installation position | any | |||||||
| Ambient temperature range 1) | °C | -30 … +80 | ||||||
| 1) | NBR seals |
hydraulic
| Size | 25 | 32 | 40 | 50 | 63 | 80 | 100 | ||
| Maximum operating pressure | Port P | bar | 350 | ||||||
| Anschluss A | bar | 16 | |||||||
| Port B | bar | 350 | |||||||
| Anschluss X | bar | 150 | |||||||
| Cracking pressure 1) | bar | ≈ 0.12 | |||||||
| Maximum flow 2) | Case of application 1 | l/min | 100 | 170 | 240 | 360 | 580 | 810 | 1210 |
| Case of application 2 | l/min | 90 | 140 | 200 | 320 | 510 | 710 | 1070 | |
| Case of application 3 | l/min | 60 | 100 | 140 | 220 | 350 | 480 | 730 | |
| Case of application 4 | l/min | 50 | 70 | 100 | 160 | 260 | 360 | 540 | |
| Druckflüssigkeit | Mineral oil (HL, HLP) to DIN 51524;fast bio-degradable hydraulic fluids according to VDMA 24568; HETG (rape seed oil); other hydraulic fluids on enquiry | ||||||||
| Hydraulic fluid temperature range | °C | -30 … +80 | |||||||
| Viscosity range | mm²/s | 10 … 800 | |||||||
| Maximum admissible degree of contamination of the hydraulic fluid 3) | Class 20/18/15 according to ISO 4406 (c) | ||||||||
| 1) | Pressure differential at the main poppet for overcoming the spring force |
| 2) | Pulling function (A to B) |
| 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. For the selection of the filters, see www.boschrexroth.com/filter. |
Flow ‒ case of application 1 (A to B)
Flow ‒ case of application 2 (A to B)
Size of the filling tank at least 1.5 x cylinder content
Flow ‒ case of application 3 (A to B)
Flow ‒ case of application 4 (A to B)
Attention!
Faulty dimensioning of prefill valves and connection lines may lead to cavitation effects. The consequences affect the reliability and durability of products!
Attention!
An underdimensioned prefill valve and/or an underdimensioned line leads to gas leaks from the hydraulic fluid with corresponding consequences and often to long-term damage at the cylinder seals.
Notice!
For limit areas, please contact us. It is often sufficient, to select a pipeline which is one size larger.
| 1 | Cylinders |
| 2 | Prefill valve |
| a | at least 300 mm with extended cylinder |
| b | up to 1000 mm with the specified maximum flows |
| c | ≤ 500 mm |
| h | 300 mm ≤ h ≤ 500 mm |
(For applications outside these values, please consult us!)
Diagrams/characteristic curves
(measured with HLP46, ϑOil {ν = [si]40 mm2/s[/si][imp]40 cSt[/imp]) = [si]40 ±5 °C[/si][imp]104 ±41 °F[/imp])
NG25
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
NG25
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
Size 32
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
Size 32
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
NG40
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
NG40
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
NG50
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
NG50
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
NG63
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
NG63
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
NG80
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
NG80
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
Size 100
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
Size 100
Pressure differential Δp between ports A and B dependent on the flow qV in suction direction.
Symbols/Circuit diagrams
Prefill valve type SFE
Prefill valve type SFE with control cover type LFF
Dimensions
load errorOrdering codes
Currently eShop is not available. Please try again later.Downloads
Цена по запросу
Нет отзывов об этом товаре.