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BOSCH REXROTH
R901016167


$463.98 USD
  • BOSCH REXROTH
  • Material:R901016167
  • Model:LC25DR40E7X/V

Quantity in stock: 2

***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 LC25DR40E7X/V (R901016167) is a sophisticated way cartridge valve designed for pressure functions, featuring a pilot-operated seat or spool design. This model is specifically engineered to fit standardized receiving holes according to DIN ISO and is sealed with a control cover, ensuring secure installation and reliable operation. The integrated pilot control valve allows for either manual or electrically proportional pressure adjustments, making it versatile for various applications. Additionally, the LC25DR40E7X/V can be combined with different control covers to achieve a range of pressure functions. With its pressure reducing function, the LC25DR40E7X/V ensures efficient flow control. It features a rest position that remains open and utilizes a spool valve without an area difference at port B, which means there are no effective areas influencing the flow in this state. The identical cover types used for the pressure relief function are also applicable here, providing consistency and ease of use across different settings. The performance of the LC25DR40E7X/V is characterized by its ability to direct effective pressure from port A through the pilot oil supply orifice to the spring side of the spool. This allows for precise regulation of flow from port B to port A under set pressures. Once the predefined pressure threshold is reached, the spool closes automatically, reducing the pressure at port A as per the predefined pressure-flow characteristics. This model's maximum flow rate capacity ensures it can handle demanding tasks efficiently. Its robust design and adaptable features make it an ideal component for various hydraulic systems requiring precise pressure management without compromising on performance or reliability.

General

2-way cartridge valves for pressure functions are pilot-operated valves in seat or spool design. The power section designed as cartridge valve (1) is installed into a receiving hole standardized according to DIN ISO 7368 and closed with a control cover (2).

The pilot control valve (4) for manual or electrically proportional pressure adjustment is integrated into the control cover (2) or is installed on the control cover (2) as pilot valve with mounting dimensions according to DIN 24 340.

By combination of cartridge valves with the control covers, different pressure functions can be realized. .

technical illustration-R901016167-

Pressure reducing function

Rest position open

The cartridge valve for the pressure reducing function is designed as spool valve without area difference (no effective areas at port B).

As pilot control valve, identical cover types as for the pressure relief function are applied (type LFA..DB...).

The effective pressure at port A is directed via the pilot oil supply orifice to the spring side of the spool. Under the performance limit and the pressure set at the pilot control valve, the spool is pressure-compensated and retained in open position by the spring force to enable free flow from port B to port A.

On reaching the set pressure, the spool is closed and the pressure at port A is reduced according to the pressure-flow characteristics.

Type

01

Cartridge valve

LC

Size

02

NG 16

16

NG 25

25

NG 32

32

NG 40

40

NG 50

50

NG 63

63

Version

03

Pressure relief function

DR

Cracking pressure

04

Cracking pressure 0 bar (without spring)

00

Cracking pressure approx. 2 bar

20

Cracking pressure approx. 3 bar

1)

30

Cracking pressure approx. 4 bar

40

Cracking pressure approx. 5 bar (NG16, 25 and 32 only)

50

Cracking pressure approx. 8 bar

2)

80

Damping

05

Piston without precision grooves

E

Component series

06

Component series 70 ... 79 (70 ... 79: unchanged installation and connection dimensions)

7X

Seal material

07

NBR seals

no code

FKM seals

V

01

02

03

04

05

06

07

LC

DR

E

7X

/

Additional preferred types and standard units are specified in the EPS (standard price list).

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

hydraulic

Size

16 25 32 40 50 63

Maximum operating pressure

Port A

bar

315

Port B

bar

315

Maximum flow

LC..DR20.../..

l/min

100 200 300 750 1000 1600

LC..DR40.../..

l/min

150 300 450 1000 1300 2000

Hydraulic fluid

Mineral oil (HL, HLP) according to DIN 51524; fast biodegradable hydraulic fluids according to VDMA 24568 ; HETG (rape seed oil); HEPG (polyglycols); HEES (synthetic esters), other hydraulic fluids on request

Hydraulic fluid temperature range

NBR seals

°C

-30 … +80

FKM seals

°C

-20 … +80

Viscosity range

mm²/s

2.8 … 380

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.

For applications outside these parameters, please consult us!

(measured with HLP46, ϑOil = 40 ±5 °C)

LC 16 DR…

technical illustration-R901016167-

LC 16 DR…

technical illustration-R901016167-

LC 16 DR…

technical illustration-R901016167-

LC 16 DR…

technical illustration-R901016167-

(measured with HLP46, ϑOil = 40 ±5 °C)

LC 25 DR…

technical illustration-R901016167-

LC 25 DR…

technical illustration-R901016167-

LC 25 DR…

technical illustration-R901016167-

LC 25 DR…

technical illustration-R901016167-

(measured with HLP46, ϑOil = 40 ±5 °C)

LC 32 DR…

technical illustration-R901016167-

LC 32 DR…

technical illustration-R901016167-

LC 32 DR…

technical illustration-R901016167-

LC 32 DR…

technical illustration-R901016167-

(measured with HLP46, ϑOil = 40 ±5 °C)

LC 40 DR…

technical illustration-R901016167-

LC 40 DR…

technical illustration-R901016167-

LC 40 DR…

technical illustration-R901016167-

LC 40 DR…

technical illustration-R901016167-

(measured with HLP46, ϑOil = 40 ±5 °C)

LC 50 DR…

technical illustration-R901016167-

LC 50 DR…

technical illustration-R901016167-

LC 50 DR…

technical illustration-R901016167-

LC 50 DR…

technical illustration-R901016167-

(measured with HLP46, ϑOil = 40 ±5 °C)

LC 63 DR…

technical illustration-R901016167-

LC 63 DR…

technical illustration-R901016167-

LC 63 DR…

technical illustration-R901016167-

LC 63 DR…

technical illustration-R901016167-
technical illustration-R901016167-

Version "E"

Version “D”

Area ratio
A1 : A2 = 2 : 1
Version "…A.E…"

Area ratio
A1 : A2 = 14.3 : 1
Version "…B.E…"

Area ratio
A1 : A2 = 2 : 1
Version "…A.D…"

Area ratio
A1 : A2 = 14.3 : 1
Version "…B.D…"

technical illustration-R901016167-

Installation bore and connection dimensions according to ISO 7368

Dimensions in mm

technical illustration-R901016167-

1

Depth of fit

2

Control dimension

3

If a different diameter is used for port B than ØD3 or (ØD3*), the distance from the cover support surface to the bore center must be calculated.

4

Port B may be positioned around the central axis of port A. However, it must be observed that the mounting bores and the control bores are not damaged.

7

At Ø ≤45 mm → Fitting H8 admissible

NG

ØD1

ØD2

ØD3/(ØD3*)

ØD4

ØD5

ØD6 1)

ØD7

H1/(H1*)

H2

H3

H4

H5

H6

H7

H8

H9

L1

L2

L3

L4

L5

W

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

16 32 H7
-
16 16
25
25 H7
-
M8 8 4 H13
-
35
29.5
56 43 20 11 2 20 2 0.5 65
80
46 23 25 10.5 0.05
25 45 H7
-
25 25
32
34 H7
-
M12 6 6 H13
-
44
40.5
72 58 25 12 2.5 30 2.5 1 85
-
58 29 33 16 0.05
32 60 H7
-
32 32
40
45 H7
-
M16 8 6 H13
-
52
48
85 70 35 13 2.5 30 2.5 1.5 102
-
70 35 41 17 0.1
40 75 H7
-
40 40
50
55 H7
-
M20 10 6 H13
-
64
59
105 87 45 15 3 30 3 2.5 125
-
85 42.5 50 23 0.1
50 90 H7
-
50 50
63
68 H7
-
M20 10 8 H13
-
72
65.5
122 100 45 17 3 35 4 2.5 140
-
100 50 58 30 0.1
63 120 H7
-
63 63
80
90 H7
-
M30 12 8 H13
-
95
86.5
155 130 65 20 4 40 4 3 180
-
125 62.5 75 38 0.2
1) Maximum dimension