BOSCH REXROTH
R900917773
$5,281.92 USD
- BOSCH REXROTH
- Material:R900917773
- Model:3DR16P5-5X/200Y/00V
Quantity in stock: 0
The Bosch Rexroth 3DR16P5-5X/200Y/00V (R900917773) is a sophisticated pilot-operated way pressure reducing valve designed for the precise regulation of system pressure. This model is adept at reducing primary circuit pressure and limiting secondary circuit pressure, ensuring optimal performance in hydraulic systems. The valve's main components include a control spool and a pilot control valve with an adjustable compression spring mechanism. In its default state, the valve allows unrestricted flow from channel P to channel A. The pressure in channel A is regulated through the bore at the piston area, which works against the compression spring. Pressure is simultaneously applied to both the control spool and ball in the pilot control valve via designated channels and nozzles. The setting of the compression spring determines when the pressure upstream of the ball builds up to hold the control spool open, allowing fluid to flow from channel P to channel A. Once channel A's pressure surpasses the set value on the compression spring, causing the ball to open, balance is achieved as the control spool shifts to a closed position. Should an external force increase pressure in channel A beyond this equilibrium point, it pushes against the compression spring, connecting channel A to channel T through a control edge on the spool. This action releases excess hydraulic fluid into a tank, preventing further pressure increases. The design incorporates an external pilot oil return via port Y that must be connected depressurized to a tank. Additionally, it features a pressure gauge connection for monitoring reduced pressure in channel A. This model offers versatility with various adjustment types including rotary knobs and lockable versions with scales for precise settings. It supports subplate mounting with porting patterns conforming to ISO standards—though subplates are ordered separately—and comes in different sizes and component series with specified maximum operating pressures and flow rates. The Bosch Rexroth 3DR16P5-5X/200Y/00V is engineered for efficient reduction and limitation of system pressures within hydraulic applications.
The pressure valve type 3DR is a pilot-operated 3-way pressure reducing valve with pressure limitation of the secondary circuit. It is used to reduce the system pressure.
The pressure reducing valve basically consists of the main valve (1) with control spool (2) and pilot control valve (3) with pressure adjustment type (10).
The valve is open in initial position. Hydraulic fluid can flow from channel P to channel A without restrictions. The pressure in channel A is simultaneously applied via the bore (4) at the piston area opposite the compression spring (9). Simultaneously, pressure is applied via the nozzle (6) to the spring-loaded side of the control spool (2) and via channel (5) to ball (7) in the pilot control valve (3).
Depending on the setting of the compression spring (11), pressure builds up upstream of the ball (7) and in channel (5) holding the control spool (2) in open position. Hydraulic fluid flows from channel P via the control spool (2) to channel A until a pressure builds up in channel A exceeding the pressure value set at the compression spring (11) and opening the ball (7).
The control spool (2) moves to closed position. The desired reduced pressure is reached if there is a balance between the pressure in channel A and the pressure value set at the compression spring (11).
If the pressure in channel A increases further due to an external force effect at the actuator, the control spool (2) is pushed further against the compression spring (9). In this way, channel A is connected to channel T via the control edge (8) at the control spool (2). So much hydraulic fluid is discharged into the tank that the pressure does not increase any further.
The pilot oil return from the spring chamber (12) is always realized externally via the control line (13) at port Y. A depressurized connection to the tank must always be ensured.
The pressure gauge connection (14) enables control of the reduced pressure in channel A.
Type 3DR 16 P4-5X/…
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01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
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3DR |
16 |
P |
– |
5X |
/ |
Y |
/ |
00 |
* |
|
01 |
3-way pressure reducing valve |
3DR |
|
02 |
Size 16 |
16 |
|
03 |
Subplate mounting |
P |
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Adjustment types |
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04 |
Rotary knob |
4 |
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Sleeve with hexagon and protective cap |
5 |
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Lockable rotary knob with scale |
6 1) |
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Rotary knob with scale |
7 |
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|
05 |
Component series 50 … 59 (50 … 59: unchanged installation and connection dimensions) |
5X |
|
06 |
Set pressure up to 50 bar |
50 |
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Set pressure up to 100 bar |
100 |
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Set pressure up to 200 bar |
200 |
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Set pressure up to 250 bar |
250 |
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Pilot oil flow |
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07 |
Internal pilot oil supply, external pilot oil return |
Y |
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08 |
With stroke limitation |
00 |
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Seal material |
||
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09 |
NBR seals |
M |
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FKM seals (other seals upon request) |
V |
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Observe compatibility of seals with hydraulic fluid used. |
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|
10 |
Further details in the plain text |
* |
| 1) H-key with material no. R900008158 is included in the scope of delivery |
Preferred types and standard units are specified in the EPS (standard price list).
general
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Size |
16 | |
|
Weight |
kg |
8 |
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Installation position |
any | |
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Ambient temperature range |
°C |
-30 … +50 |
hydraulic
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Size |
16 | ||
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Nominal pressure |
bar |
315 | |
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Maximum operating pressure |
Port P |
bar |
315 |
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Anschluss A |
bar |
250 | |
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Port Y |
separate and depressurized to the tank | ||
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Set pressure |
Minimum |
flow-dependent, see characteristic curves | |
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Maximum |
bar |
50 100 200 315 |
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Maximum flow |
l/min |
220 | |
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Hydraulic fluid |
see table | ||
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Hydraulic fluid temperature range |
NBR seals |
°C |
-30 … +80 |
|
FKM seals |
°C |
-20 … +80 | |
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Viscosity range |
mm²/s |
10 … 800 | |
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Maximum admissible degree of contamination of the hydraulic fluid |
Class 9 according to NAS 1638. For this, we recommend using a filter with a minimum retention rate of β10 ≥ 75. | ||
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Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
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Mineral oil |
HL, HLP |
FKM, NBR |
DIN 51524 |
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Bio-degradable |
Insoluble in water |
HEES (synthetic esters) |
FKM |
VDMA 24568 |
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HETG (rape seed oil) |
FKM, NBR |
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Soluble in water |
HEPG (polyglycols) |
FKM |
VDMA 24568 |
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Other hydraulic fluids on request |
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For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
Outlet pressure pA dependent on the flow qV
The characteristic curves apply for outlet pressure pT = zero in the entire flow range.
Flow resistance
Minimum set pressure pmin dependent on the flow qV
The characteristic curves apply for outlet pressure pT = zero in the entire flow range.
Pilot flow qV st dependent on the flow qV
Dimensions in mm
|
1 |
Name plate |
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2 |
Pilot control valve |
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3 |
Main valve |
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4 |
Adjustment type "5" |
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5 |
Hexagon SW10 |
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6 |
Adjustment type "4" |
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7 |
Adjustment type "6" |
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8 |
Adjustment type "7" |
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9 |
Seal rings for ports X, Y, and L |
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10 |
Seal rings for ports A, B, P, and T |
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11 |
Port X must be closed in the subplate |
|
12 |
Ports B and L must be closed in the subplate |
|
13 |
Pressure gauge connection |
|
14 |
Valve contact surface, porting pattern according to ISO 4401-07-07-0-05 |
|
15 |
Space required to remove the key |
Subplates (separate order)
G172/01 (G3/4)
G174/01 (G1)
Valve mounting screws (separate order)
4 hexagon socket head cap screwsISO 4762 - M10 x 60 - 10.9-flZn-240h-L
Friction coefficient µtotal = 0.09 to 0.14,
Tightening torque MA = 73 Nm ± 10 %,
material no. R913000116
2 hexagon socket head cap screwsISO 4762 - M6 x 60 - 10.9-flZn-240h-L
Friction coefficient µtotal = 0.09 to 0.14,
Tightening torque MA = 15,5 Nm ± 10 %,
material no. R913000115
Notice!
The tightening torques stated are guidelines when using screws with the specified friction coefficients and when using a manual torque wrench (tolerance ± 10 %).