PRESSURE REDUCING VALVE KRD2F2AB/LV
Manufacturer: Bosch Rexroth
Material #: R901082845
Model : KRD2F2AB/LV
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth KRD2F2AB/LV (R901082845) is a high-performance, direct-operated 3-way pressure reducing valve designed for efficient hydraulic control in a variety of applications. This screw-in cartridge valve is engineered to maintain a leakage-free pressure reduction, ensuring precise operation and reliability. It features a maximum operating pressure of 350 bar (5076 psi) and can accommodate a maximum flow rate of 100 l/min (26.4 gpm), making it suitable for systems requiring consistent performance under high-pressure conditions.
The KRD2F2AB/LV valve is distinguished by its threaded pin with hexagon and protective cap for easy adjustment, as well as its FKM sealing material which provides excellent resistance to high temperatures and chemical exposure. The cavity conforms to the RISO 7368/1 standard, ensuring compatibility with standardized mounting cavities.
With ports numbered appropriately for straightforward installation, this product belongs to the KRD product family type and operates in a normally open position. It does not come with preset pressure settings, allowing users the flexibility to adjust according to their specific requirements. The poppet-type spool within the valve ensures smooth operation and effective pressure control.
Designed for direct acting use, this Bosch Rexroth valve is compatible with various hydraulic fluids such as HL, HLP, HEES, and HEPG, broadening its application scope across different hydraulic systems. With its robust construction and versatile functionality, the KRD2F2AB/LV provides an optimal solution for simple pressure-reducing functions without the need for an external oil drain.
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2-way pressure reducing valve, direct operated
Unpacked Weight: 0.7737 kg
Cartridge valve Mounting cavity according to R/ISO 7789-27-01-1-98 Available in 3 pressure ratings (100, 210 and 315 bar) Versatile use for simple pressure-reducing functions without leakage oil drain
General
The direct operated 2-way pressure reducing valve type KRD is designed as tight seat valve. It is used for the leakage-free pressure reduction of a working pressure.
It basically comprises the screw-in housing (1) with spring (6) and adjustment type (5) as well as spool (3), valve seat (2) and closing element (4).
Function
In the initial position, the valve seat is open. Hydraulic fluid can flow from the main port ① to ②. If the pressure in the main port increases ② to the pressure value set at the adjustment type (5), the closing element (4) closes the connection ① to ②. The increasing system pressure (main port ①) no longer influences the pressure in main port ② (pressure holding function). Pressure losses in the main port ② (actuator) will be compensated by the valve.
|
➀ |
Main port 1 (P) |
|
➁ |
Main port 2 (A) |
(measured with HLP46, ϑOil = 40 ±5 °C)
Reduced pressure dependent on the flow
Notice!
The figures show the p-qV characteristic curves of the 3 pressure ratings at the relevant rated pressures.
Recommendation for the pressure differential:
Δp ≥ 20 bar
Flow resistance Δp-qV characteristic curves
|
➀ |
Main port 1 (P) |
|
➁ |
Main port 2 (A) |
Dimensions in mm
|
➀ |
Main port 1 (P) |
|
➁ |
Main port 2 (A) |
|
1.1 |
Adjustment type “1”: rotary knob (only with pressure rating 100 bar “F”) |
|
1.2 |
Adjustment type "2": grub screw with hexagon wrench size 5 and protective cap |
|
1.3 |
Adjustment type “3”: lockable rotary knob with scale (only with pressure rating 100 bar “F”) |
|
2 |
Plastic ring with marking (adjustment of the zero position after the valve has been screwed in, then fixing of the ring by horizontal shifting until it engages on the reducing piece) |
|
3 |
Lock nut wrench size 19, tightening torque MA = 30±5 Nm |
|
4 |
Lock nut wrench size 30, tightening torque MA = 100 Nm |
|
5 |
Space required to remove the key |
|
6 |
Hexagon wrench size 36, tightening torque MA = 170 Nm |
Mounting cavity R/ISO 7789-27-01-1-98 (similar to ISO 7789-27-01-0-98): 2 main ports, thread M27 x 2
Dimensions in mm
| 1) | Deviating from ISO 7789 27-01-0-98: Valves for mounting cavity ISO 7789 27-01-0-98 can be screwed into this bore! |
| 2) | Depth of fit |
|
➀ |
Main port 1 (P) |
|
➁ |
Main port 2 (A) |
