PRESSURE REDUCING VALVE DR 20 K5-1X/315YMV
Manufacturer: Bosch Rexroth
Material #: R900491714
Model : DR 20 K5-1X/315YMV
***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 DR 20 K5-1X/315YMV (R900491714) is a high-performance pressure reducing valve, pilot operated, designed for hydraulic applications requiring precise pressure control. This screw-in cartridge valve is engineered to maintain a constant outlet pressure regardless of fluctuations in the inlet pressure. It features a maximum operating pressure of 315 bar and can handle a maximum flow rate of 20 l/min, making it suitable for a wide range of demanding applications.
The valve's normal position is normally open, allowing free flow from the inlet to the outlet when in the rest position. It incorporates a poppet-type spool with internal pilot oil supply and external pilot oil return, ensuring reliable operation and easy maintenance. The adjustment options include a bushing with hexagon and protective cap for precise control over system pressure.
Constructed to fit into cavity Mx, the DR 20 K5-1X/315YMV offers multiple sealing material options including FKM for compatibility with various hydraulic fluids such as HL, HLP, HETG, HEES, HEPG, and HFDU. Its robust design is complemented by the option to integrate a check valve for subplate mounting applications which allows free return flow from channel A to B.
This product belongs to the DR.K product family classification within Bosch Rexroth's extensive catalog of hydraulic components. The valve's ports configuration adheres to ISO standards for ease of integration into existing systems. With its direct pilot operation and poppet design, this reducing valve ensures consistent performance and reliability in controlling system pressures across various hydraulic circuits.
$584.95 USD
Availability: 3 In Stock
Available for immediate shipmentQty: Delivered as early as January 2, 2025 when ordered in
This product is eligible for factory repair.
Unpacked Weight: 0.36 kg
For subplate mounting Porting pattern according to ISO 5781 For threaded connection As cartridge valve 4 optional adjustment types:• Rotary knob• Sleeve with hexagon and protective cap• Lockable rotary knob with scale• Rotary knob with scale 4 pressure ratings
The pressure valve type DR is a pilot-operated pressure reducing valve. It is used to reduce the system pressure.
It mainly consists of screw-in cartridge valve (cartridge) and housing, optionally with or without check valve (subplate mounting only).
In the rest position the valve is open. The hydraulic fluid is able to flow freely from the inlet channel via the main control spool (1) to the outlet channel. The pressure in the outlet channel is applied to the spring-loaded side of the main control spool (1) via the bore (2). At the same time, the pressure acts upon the side of the main control spool (1) that is opposite to the spring via the bores (3) and (4).
If the pressure in the outlet channel exceeds the value set at the spring (6), the pilot poppet (5) opens.
Hydraulic fluid flows from the spring-loaded side of the main control spool (1) via the nozzle (7) and the pilot poppet (5) into the spring chamber (8).
The main control spool (1) assumes its control position and keeps the value in the outlet channel set at the spring (6) constant. The pilot oil return from the spring chamber (8) is always realized externally via the Y port (9).
In subplate mounting version "P", a check valve (10) can be optionally installed for free return flow from channel A to B.
Type DR 10 -4-4X/…
Type DR 20 G-4-4X/…
Notice!
The pressure in port Y is added 1:1 to the set reduced pressure.
(measured with HLP46, ϑOil = 40 ±5 °C)
Minimum adjustable output pressure P dependent on the flow qV (B to A)
Pilot flow qV st dependent on the flow qV (B to A) and the pressure differential Δp
Δpmin-qV characteristic curve (B to A)
Δp-qV characteristic curve (B to A)
Type DR . .-.-4X/.Y
Subplate mounting
Type DR . .-.-4X/.YM, Type DR . K-.-1X/.YM (screw-in cartridge valve)
Subplate mounting, screw-in cartridge valve
Type DR . G-.-4X/.YM
Threaded connection
Subplate mounting
Dimensions in mm
Subplate mounting
Dimensions in mm
|
1 |
Adjustment type "4" |
|
2 |
Adjustment type "5" |
|
3 |
Adjustment type "6" |
|
4 |
Adjustment type "7" |
|
5 |
Lock nut SW22 |
|
6 |
Hexagon SW10 |
|
7 |
Hexagon SW30, tightening torque for screw-in MA = 50 Nm |
|
8 |
Space required to remove the key |
|
9 |
Locking pin |
|
10 |
Valve mounting bores |
|
11 |
Name plate |
|
12 |
Identical seal rings for ports A and B |
|
13 |
Seal ring for port Y |
|
Type |
L1 |
L2 |
L3 |
L4 |
L5 |
L6 |
B1 |
B2 |
B3 |
B4 |
H1 |
H2 |
H3 |
H4 |
ØD1 |
ØD2 |
ØD3 |
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
|
| DR10 | 95.5 | 79 | 42.9 | 23 | 2.5 | 21.5 | 85 | 49 | 66.7 | 7.9 | 71 | 60 | 26 | 26 | 35.5 | 21.8 | 15 |
| DR20 | 96 | 79.5 | 60.3 | 7 | 4 | 39.7 | 100 | 58 | 79.4 | 6.4 | 96 | 78 | 26 | 40 | 41 | 34.8 | 25 |
Threaded connection "G"
Dimensions in mm
|
1 |
Adjustment type "4" |
|
2 |
Adjustment type "5" |
|
3 |
Adjustment type "6" |
|
4 |
Adjustment type "7" |
|
5 |
Lock nut SW22 |
|
6 |
Hexagon SW10 |
|
7 |
Hexagon SW30, tightening torque for screw-in MA = 50 Nm |
|
8 |
Space required to remove the key |
|
10 |
Valve mounting bores |
|
11 |
Name plate |
|
14 |
Y port for pilot oil return |
|
Type |
D1 |
ØD2 |
|
mm |
||
| DR 10G | G1/2 | 34 |
| DR 15G | G3/4 | 42 |
| DR 20G | G1 | 47 |
Notice!
In this valve version, no check valve for free return flow is installed in the valve.
Screw-in cartridge valve "K"
Dimensions in mm
|
1 |
Adjustment type "4" |
|
2 |
Adjustment type "5" |
|
3 |
Adjustment type "6" |
|
4 |
Adjustment type "7" |
|
5 |
Lock nut SW22 |
|
6 |
Hexagon SW10 |
|
7 |
Hexagon SW30, tightening torque for screw-in MA = 50 Nm |
|
8 |
Space required to remove the key |
|
15 |
Seal ring |
|
16 |
Support ring |
Mounting cavity
Dimensions in mm
Notice!
Optionally, the connection bores A, B and Y can be applied at the circumference.
Subplates (separate order)
Size 10:G 460/01 (G3/8)
G 461/01 (G1/2)
Size 25:G 412/01 (G3/4)
G 413/01(G1)
Valve mounting screws (separate order)
Size 10:4 hexagon socket head cap screws ISO 4762 - M10 x 40 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
Tightening torque MA = 75 Nm ± 10 %
Size 25:4 hexagon socket head cap screws ISO 4762 - M10 x 50 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
Tightening torque MA = 75 Nm ± 10 %
Notice!
The tightening torques stated are guidelines when using screws with the specified friction coefficients and when using a manual torque wrench (tolerance ± 10 %).
Related Products
R900425998
$337.20 USD
R900424203
$512.00 USD
R900460667
$615.25 USD
R900470298
$374.37 USD
R900572182
$474.91 USD
