Артикул: RX7429
В наличии
2-way flow control valve 2FRM.K2
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Description
- Size 10, 6
- Component series 1X
- Maximum operating pressure 315 bar
- Maximum flow 60 l/min
Features
- Cartridge valve
- Adjustment type with internal hexagon
- With integrated check valve
- Low start-up jump
Product description
The valve type 2FRM.K2 is a 2-way flow control valve for block design installation. It is used for pressure and temperature-independent flow stabilization.
The valve basically consists of housing (1), adjustment type (2), throttling point (3), throttle bolt (4), pressure compensator (5) and check valve (6).
The flow from channel A to channel B is throttled at the throttling point (3). The throttle cross-section is set by rotation of the adjustment type (2) between the throttling point (3) and the throttle bolt (4).
For pressure-independent flow stabilization in channel B, a pressure compensator (5) is connected downstream to the throttling point (3).
The pressure compensator (5) is pressed by the compression spring (7) against the plug screw (8) and remains in open position if there is no flow through the valve. When there is a flow through the valve, the pressure in channel A applies a force on the pressure compensator (5). It is set to control position until the forces are balanced. If the pressure in channel A rises, the pressure compensator (5) moves in closing direction until the forces are balanced again. Due to this continuous compensation of the pressure compensator, a constant flow is obtained.
The free return flow from channel B to channel A is directed via the check valve (6).
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | ||
| 2FRM | K | 2 | – | 1X | / | R | V | * |
| 01 | 2-way flow control valve | 2FRM |
| 02 | Size 6 | 6 |
| Size 10 | 10 | |
| 03 | Cartridge valve | K |
| Adjustment type | ||
| 04 | Internal hexagon | 2 |
| 05 | Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) | 1X |
| Flow (A → B) | ||
| 06 | up to 6.0 l/min (size 6) | 6Q |
| up to 32.0 l/min (size 6) | 32Q | |
| up to 60.0 l/min (size 10) | 60Q | |
| 07 | With check valve | R |
| Seal material | ||
| 08 | FKM seals (other seals upon request) | V |
| Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) | ||
| 09 | Further details in the plain text | |
Preferred types and standard units are contained in the EPS (standard price list).
Technical data
general
| Size | 6 | 10 | |
| Weight | kg | 0.19 | 0.6 |
| Installation position | any | ||
| Ambient temperature | °C | -20 … +50 | |
hydraulic
| Size | 6 | 10 | |||
| Maximum operating pressure | Anschluss A | bar | 315 | 210 | |
| Pressure differential Δp with free return flow B → A | See characteristic curves | ||||
| Minimum pressure differential | bar | 18 | |||
| Pressure stable (qV max) up to Δp = 315 bar / 210 bar | % | ± 3 | |||
| Flow | Pv max | l/min | 6 | 32 | 60 |
| Pv min | l/min | 0.05 | 0.25 | 0.5 | |
| Hydraulic fluid | see table | ||||
| Hydraulic fluid temperature range | °C | -20 … +80 | |||
| Viscosity range | mm²/s | 10 … 800 | |||
| Maximum admissible degree of contamination of the hydraulic fluid 1) | Class 20/18/15 according to ISO 4406 (c) | ||||
| 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 | |
| Mineral oil | HL, HLP | FKM, NBR | DIN 51524 | |
| Bio-degradable | Insoluble in water | HEES (synthetic esters) | FKM | VDMA 24568 |
| HETG (rape seed oil) | FKM, NBR | |||
| Soluble in water | HEPG (polyglycols) | FKM | VDMA 24568 | |
| Other hydraulic fluids on request | ||||
(For applications outside these values, please consult us!)
Diagrams/characteristic curves
(measured with HLP46, ϑOil = 40 ±5 °C)
Size 6
Δp-qV characteristic curve via check valve (B → A) orifice closed
Size 6
Flow qV depending on inlet pressure p
Size 10
Δp-qV characteristic curve via check valve (B → A) orifice closed
Size 10
Flow qV depending on inlet pressure p
Symbols/Circuit diagrams
Detailed
simple
Dimensions
load errorDownloads
 | 2-way flow control valve Type 2FRM Data Sheet | RE28155 | 2022-01-21 | English | PDF | 769k Product Groups: Flow control valves Sizes 6 and 10, Series 1X |
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