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BOSCH REXROTH
KSDER1CB/HN0V
R901083205
Directional Seat/Poppet Valves

Dir.poppet valve KSDE -size 01 serie 2x/

BOSCH REXROTH

MATERIAL:  R901083205

SUMMARY:  Dir.poppet valve KSDE -size 01 serie 2x/

Due to extremely high demand, please call 888-651-5712 for availability

General

The 3/2 directional seat valves are direct operated, pressure-compensated screw-in cartridge valves. They basically consist of a screw-in section (4) with valve seat (1), solenoid (5) as well as closing element (3) and compression spring (2).

Function

The initial position of the valve (normally open “U" or normally closed “C") is determined by the position of the closing element (3) and the arrangement of the compression spring (2). Due to the structural design, the 3/2 directional seat valves are always pressure-compensated in relation to the actuating forces. The main ports ➀ and ➁ can be loaded with an operating pressure of 350 bar/500 bar (see Technical data) and are blocked in a leakage-free manner in the respective end position. While switching, the main ports are connected for a short period of time (negative overlap).

Attention!

The flow is only admissible in the direction of arrow (see symbols)! With version “U” (operating pressure 500 bar [7250 psi]) as well as with version “R...-17”, the main port ➀ is to be connected to the pump connection P! The valves of version “R...-17” are flow-optimized and thus achieve a greater switching power.

The manual override allows the switching of the valve without solenoid energization. It is available in concealed version "N9" (6) or in screwable version "N11" (7) (see ordering codes).

Version "K4" (with mating connector)

Type KSDER1UB/HN9V

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

Version "C4"

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

Version "K40"

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

(valve without coil) 1)

01

02

03

04

05

06

07

08

09

10

KSDE

1

B

/

H

V

*

01

Directional seat valve, direct operated, electrically operated

KSDE

02

Maximum operating pressure 500 bar

U

Maximum operating pressure 350 bar

R

03

Component size

1

04

3 main ports

„R“ (350 bar)

„U“ (500 bar)

„R...–17“ (350 bar)

Symbols

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/ technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

C

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/ technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

U

05

Component series

B

06

High Performance and mounting cavity R/T-11A (see mounting cavity)

H

07

Without manual override

N0

With concealed manual override

N9

with screwable manual override (actuation by means of knurled screw)

N11

Version

Symbol C

Symbol U

N0

N9

N11

N0

N9

N11

R (350 bar)

X

X

X

X 2)

U (500 bar)

X

X

Seal material

08

FKM seals (other seals upon request)

V

Observe compatibility of seals with hydraulic fluid used.

09

Standard

no code

Flow-optimized

3)

–17

10

Further details in the plain text

*

1) Complete valves with mounted coil available on request
2) Screwable manual override “N10” (actuation by means of internal hexagon with lock nut), possible as separate order, material no. R901051231; ordering code “N9” !
3) Version “R” only (free-flowing on one side!)

general

Size

1

Weight

Valve

kg

0.3

Coil

kg

0.25

Installation position

any

Ambient temperature range

°C

-40 … +110

hydraulic

Size

1

Maximum operating pressure

Version

„U“ „R“

bar

500 1) 350 2)

Version “R...-17” 1)

bar

350

Maximum flow

Version

„U“ „R“

l/min 3)

6 12

Version “R...-17”

l/min

20 3)

Hydraulic fluid

see table

Hydraulic fluid temperature range

°C

-40 … +80

Viscosity range

mm²/s

4 … 500

Maximum admissible degree of contamination of the hydraulic fluid 4)

Class 20/18/15 according to ISO 4406 (c)

Load cycles

Version (R: 350 bar [5100 psi]; U: 500 bar [5100 psi])

„U“ „R“

million

5 10

Maximum tank pressure 5)

bar

≤ 50
1) At main port ➀ and ➁ if P ≥ A ≥ T; for design reasons
2) At main port ➀ and ➁
3) See performance limits
4) 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.
5) At main port ➂

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

With the electrical connection "K4", the protective earthing conductor (PE, grounded) is to be connected in accordance with the stipulations.

electrical

Voltage type

Direct voltage

Power supply 1)

V

12
24

Voltage tolerance against ambient temperature

See characteristic curves

Power consumption

W

22

Duty cycle

%

100

Maximum coil temperature 2)

°C

150

Switching time according to ISO 6403 (solenoid horizontal) 3)

ON (➀ → ➁)

ms

≤ 60

OFF (➁ → ➀)

ms

≤ 60

Maximum switching frequency

Version

„U“ „R“

Hz

3600 9000

Protection class according to DIN EN 60529

Version "K4"

IP65 (with mating connector mounted and locked)

Version "C4"

IP66 with mating connector mounted and locked
IP69K with Rexroth mating connector (material no. R901022127)

Version "K40"

IP69K with mating connector mounted and locked
1) Other voltages upon request
2) Due to the surface temperatures of the solenoid coils, the standards ISO 13732-1 and EN 982 need to be adhered to!
3) ≤ 95 with version “R...-17”

For applications outside these parameters, please consult us!

Voltage tolerance against ambient temperature; duty cycle

Voltage range and duty cycle dependent on the ambient temperature

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

Δp-qV characteristic curves

(measured with HLP46, ϑOil = 40 °C ± 5 °C) and 24 V coil

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

Performance limits (measured with HLP46, ϑOil = 40 ±5 °C and 24 V coil)

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

Attention!

The performance limit has been determined with the solenoids at operating temperature and with 10% undervoltage.

(measured with HLP46, ϑoil = 40 ±5 °C) and 24 V coil

Version “R”(350 bar)

Symbol “C“ normally closed

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

Symbol “U“ normally open

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

Version “U” (500 bar) and “R…-17” (350 bar)

Symbol “C“ normally closed

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

Symbol “U“ normally open

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

Dimensions in mm

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/

1

Mating connector (separate order)

2

Space required to remove the mating connector

3

SW24, tightening torque MA = 60+5 Nm

4

Dimension for mating connector “K4”, without circuitry

5

Dimension () for mating connector “K4”, with circuitry

6

Version "K40"

7

Version "C4"

8

Nut, tightening torque MA = 5+1 Nm

9

Coil (separate order)

10

Concealed manual override "N9", optional

11

Screwable manual override "N11", optional

12

Screwable manual override “N10” (separate order)

Main port 1, pump P3)

Main port 2, actuator A3)

Main port 3, tank T3)

LS

Location shoulder

1) actuated
2) screwed in
3)Attention!
Unambiguous pin assignment. P, A and T must not be exchanged or closed!

Mounting cavity R/T-11A; 3 main ports; thread M20 x 1.5 mm

Dimensions in mm

technical illustration-KSDER1CB/HN0V-Dir.poppet valve KSDE -size 01 serie 2x/
1) Deviating from T-11A
2) All seal ring in sertion faces are rounded and free of burrs
3) With countersink
4) Depth for mobile parts

Main port 1

Main port 2

Main port 3

LS

Location shoulder

Tolerance for all angles ± 0.5 °