PRESSURE REDUCING VALVE 3DREP6C-2X/25EG24XEJ/V
Manufacturer: Bosch Rexroth
Material #: R901025350
Model : 3DREP6C-2X/25EG24XEJ/V
***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 3DREP6C-2X/25EG24XEJ/V (R901025350) is a high-performance industrial hydraulic valve designed for reliable pressure reduction to a preset command value signal. This direct-actuated spool valve features pressure adjustment capabilities up to a maximum bar, with a spool symbol configuration of P A, P B A T, B T. The valve is equipped with electrical actuation through external electronics and conforms to the CE explosion protection directive of the EU, making it suitable for use in potentially explosive atmospheres.
With its subplate mounting design and connection diagram conforming to NFPA T3.5.1 R2 D03 and ISO 4401 size 6, the 3DREP6C-2X/25EG24XEJ/V offers versatility in installation. It has a maximum operating pressure of bar and can handle a maximum flow rate of l/min. The valve operates on a supply voltage of V DC and features two switching positions.
The hydraulic fluid compatibility includes HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR types with FKM seals ensuring resilience across different fluid types. The electrical connection is facilitated by a cable gland with terminal box for secure wiring.
This valve's functionality is characterized by its ability to set pressure in ports A or B via proportional solenoids which are controlled by the current supplied to them. When de-energized, the control spool maintains its central position allowing free flow to the tank. Upon energization of one solenoid at a time (as required for version DREP C), the control spool shifts to regulate the pressure between ports P-A-B-T until the desired level is achieved.
Notably designed for safe operation in hazardous environments as indicated by its Ex eb mb IIC T4 Gb protection type according to EN 60079-0 and EN 60079-7 standards; this Bosch Rexroth valve stands out for its robustness and precision in controlling hydraulic pressures within industrial systems.
$11,256.00 USD
More are expected on October 14, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as October 14, 2024 when ordered in
This product is eligible for factory repair.
Size 6, P → A, P → B / A → T, B → T, electrical with external electronics, 24 V DC
Industrial hydraulic valve in a high performance range. Reliable reduction of the pressure to the command value signal.
Unpacked Weight: 3.790 kg
3-way version For intended use in potentially explosive atmosphere For subplate mounting Porting pattern according to ISO 4401-03-02-0-05 (but without locating hole) Wet-pin DC solenoids Solenoid coil is rotatable by 90° Electrical connection as individual connection with cable gland
The 3-way pressure reducing valve type 3 DREP 6.. is direct operated by proportional solenoids. It converts an electrical input signal into a proportional pressure output signal.
The proportional solenoids are controllable wet-pin DC solenoids. The solenoids are controlled by external control electronics.
Set-up:
The valve basically consists of:
Housing (1) with connection surface Control spool (2) with pressure measuring pins (3, 4) Solenoids (5, 6) with central threadFunction:
The pressure in A or B is set by means of the proportional solenoids. The amount of the pressure depends on the current. The amount of the pressure depends on the current. With de-energized solenoids (5, 6), the control spool (2) is held in the central position by means of the compression springs (8). Ports A and B are connected with T so that the hydraulic fluid can flow off to the tank without obstructions. By energization of a proportional solenoid, e. g. solenoid “b" (5), the pressure measuring pin (4) and with it the control spool (2) are moved to the left. This opens the connection from P to A and B to T via orifice-type cross-sections with progressive flow characteristics. With the surface of the pressure measuring pin (3) the pressure that builds up in channel A acts on the control spool and against the solenoid force. The pressure measuring spool (3) is supported by the solenoid "a". If the pressure exceeds the value set at solenoid “b”, the control spool (2) is pushed back against the solenoid force and connects A with T until the set pressure is achieved again. The pressure is proportional to the solenoid current.
When the solenoid is switched off, the control spool (2) is returned into the central position by the compression springs (8).
Notice:
Regarding valves of version 3DREP 6 C, only one solenoid may be actuated at a time.
Type 3DREP 6..2X/..XE..
Notice:
The tank line must not be allowed to run empty. With corresponding installation conditions, a preload valve (preload pressure approx. 2 bar) must be installed.
Valve with two spool positions (type 3DREP..A...):
The function of this valve version basically corresponds to the valve with three spool positions. The 2 spool position valve is, however, only equipped with solenoid "b" (5). Instead of the 2nd proportional solenoid, a plug screw (7) is installed.
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
11 |
|||
|
3DREP |
6 |
‒ |
2X |
/ |
E |
G24 |
XE |
J |
/ |
* |
|
01 |
Proportional pressure relief valve in 3-way version |
3DREP |
|
02 |
Size |
6 |
|
03 |
Symbols |
|
Type 3DREP6 A 2X/..
|
A |
|
Type 3DREP6 B 2X/..
|
B |
|
Type 3DREP6 C 2X/..
|
C |
|
|
04 |
Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions) - Size 6 |
2X |
|
Pressure rating |
||
|
05 |
16 bar |
16 |
|
25 bar |
25 |
|
|
45 bar |
45 |
|
|
06 |
Proportional solenoid |
E |
|
Power supply |
||
|
07 |
Direct voltage 24 V |
G24 |
|
08 |
“Increased safety” explosion protection; for details, please refer to the information on explosion protection |
XE |
|
09 |
Surface protection |
|
|
Seawater-resistant, galvanized |
J |
|
|
Seal material |
||
|
10 |
NBR seals |
M |
|
FKM seals |
V |
|
|
Observe compatibility of seals with hydraulic fluid used. |
||
|
11 |
Further details in the plain text |
* |
(measured with HLP46, ϑOil = 40 ±5 °C)
Pressure ratings 16, 25 and 45 bar
Pressure ratings 16, 25 and 45 bar
Flow-dependent pressure
Type 3DREP..6 A 2X/..E (detailed)
Type 3DREP..6 B 2X/..E (detailed)
Type 3DREP..6 C 2X/..E (detailed)
The type-examination tested valve solenoid is equipped with a terminal box and a type-tested cable gland. The connection is polarity-independent.
Notice:
Corresponding to the rated current, a fuse according to DIN 41571 and EN / IEC 60127 has to be connected upstream of every valve solenoid (max. 3 x Irated).
The shut-off threshold of the fuse has to match the prospective short-circuit current of the supply source.
The prospective short-circuit current of the supply source may amount to a maximum of 1500 A.
This fuse may only be installed outside the potentially explosive area or must be of an explosion-proof design.
Properties of the connection terminals and mounting elements
|
Position |
Function |
Connectable line cross-section |
|
1 |
Operating voltage connection |
Single-wire 0.75 … 2.5 mm2 |
|
Finely stranded,0.75 … 1.5 mm2 |
||
|
2 |
Connection for protective earthing conductor |
Single-wire 2.5 mm2 max. |
|
Finely stranded, 1.5 mm2 max. |
||
|
3 |
Connection for potential equalization conductor |
Single-wired, 4 … 6 mm2 |
|
Finely stranded, 4 mm2 |
Cable gland
|
Type approval |
II 2G Ex e IIC Gb |
|
Threaded connection |
M20 x 1,5 |
|
Protection class according to DIN EN 60529 |
IP66 (with correctly installed electrical connection) |
|
Line diameter |
7 … 10,5 mm |
|
Sealing |
Outer sheath sealing |
Connection line
|
Line type |
Non-armored cables and lines (outer sheath sealing) |
|
Temperature range |
–30 … > +110 °C |
| 1) |
Recommended pre-fusecharacteristics: medium time-lag according to DIN 41571; 1.25 A |
Dimensions in mm
|
|
Required surface quality of the valve contact surface |
|
1 |
Valve housing |
|
2 |
Proportional solenoid "a" |
|
3 |
Proportional solenoid "b" |
|
4 |
Terminal box |
|
5 |
Name plate |
|
6 |
Identical seal rings for ports A, B, P, and T |
|
7 |
Plug screw for valve with one solenoid |
|
8 |
Porting pattern according to ISO 4401-03-02-0-05 (but without locating hole) |
Valve mounting screws (separate order):
For reasons of stability, exclusively the following valve mounting screws are to be used:
4 hexagon socket head cap screws
ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
(friction coefficient 0.09 – 0.14 according to VDA 235-101)
Tightening torque MA = 7 Nm ± 10 %,
Material no. R913000064
Subplates (separate order) with porting pattern according to ISO 4401-03-02-0-05, see data sheet 45100.
Notice:
Subplates are no components in the sense of directive 2014/34/EU and can be used after the manufacturer of the overall system has conducted an assessment of the risk of ignition. The "G...J3" versions are free from aluminum and/or magnesium and galvanized.
Installation conditions (dimensions in mm)
|
Single assembly |
Bank assembly |
|
|
Subplate dimensions |
Minimum dimensions: |
Minimum cross-section: |
|
Thermal conductivity of the subplate (EN-GJS-500-7) |
≥ 38 W/mK |
|
|
Minimum distance between the longitudinal valve axes |
≥ 55 mm |
|
Notice:
In case of bank assembly, only one solenoid of all valves may be energized at a time.
Schematic diagram
Dimensions in mm
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