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POPPET DIRECTIONAL VALVE KSDER1CB/HN11V

Manufacturer: Bosch Rexroth

Material #: R901151279

Model : KSDER1CB/HN11V

***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 KSDER1CB/HN11V (R901151279) is a high-performance directional poppet valve characterized by its direct operation with solenoid actuation. This screw-in cartridge valve is designed to manage flow with precision, featuring a maximum operating pressure of up to 350 bar (5076 psi) and a maximum flow rate of 80 l/min (21.1 gpm). It is engineered for use within the Sun TA cavity and employs an FKM sealing material for optimal performance in various hydraulic systems. The KSDER1CB/HN11V valve offers both normally open and normally closed configurations, ensuring versatility for different circuit designs. Its pressure-compensated structure allows consistent operation regardless of fluctuating pressures, while the solenoid-actuated on/off functionality provides reliable control for hydraulic circuits. The manual override feature, available in concealed or screwable versions, adds an extra layer of control by allowing manual operation in the absence of solenoid power. This model boasts a poppet-type spool ensuring tight sealing and minimal leakage across ports in its default position. Additionally, it has been designed to ensure reliable switching even after extended periods without activity, thanks to its wet-pin DC solenoids and the ability to rotate the solenoid coil for ease of installation. The Bosch Rexroth KSDER1CB/HN11V valve is compatible with a range of hydraulic fluids including HL, HLP, HETG, HEPG, and HEES types. Its robust construction and advanced design make it suitable for demanding applications where precise flow control and durability are critical. The product's direct acting feature offers simplicity and reliability in function, making it an essential component for efficient hydraulic system operations.

Destination

$550.53 USD

Availability: Backordered

Ships from CA

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Delivered as early as October 2, 2026

POPPET DIRECTIONAL VALVE KSDER1CB/HN11V

3/2 directional poppet valve, direct operated with solenoid actuation

Unpacked Weight: 0.3189 kg

Mounting cavity R/T-11A Direct operated directional seat valve with solenoid actuation, tight on both sides Blocked port tight in a leak-free form Reliable switching even after longer periods of standstill Wet-pin DC solenoids Solenoid coil can be rotated

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

Version "C4"

Version "K40"

Screw-in cartridge valve
Maximum operating pressure 350 bar (5000 psi)
Maximum flow 12 l/min (3 gpm)
Cavity Sun T-11A

Product family classification	3/2 directional poppet valve, direct operated with solenoid actuation
Product family type	KSDE
Max. pressure	350
Ports number	3
Max. flow	20
Positions	2
Spool Poppet	Poppet type
Type of connection	Screw-in cartridge valve
Direct - Pilot	Direct acting
Cavity	Sun T-11A
Nominal flow	20
Type of actuation	Solenoid-actuated on/off
Coil	GZ37
Coil integrated	To be ordered separately
Manual override	Screw type manual override
Sealing material	FKM
Hydraulic fluid	HL,HLP,HETG,HEPG,HEES
Productgroup ID	9,10,11,12,13,14
Product type	KSDE
Product family	3 ways
Weight	0.3189

(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					C
						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
Weight	Coil	kg	0.25
Installation position			any
Ambient temperature range		°C	-40 … +110

hydraulic

Size			1
Maximum operating pressure	Version		„U“	„R“
	Version	bar	500 1)	350 2)
	Version “R...-17” 1)	bar	350
Maximum flow	Version		„U“	„R“
	Version	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“
Load cycles	Version (R: 350 bar [5100 psi]; U: 500 bar [5100 psi])	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
	Insoluble in water	HETG (rape seed oil)	FKM, NBR	VDMA 24568
	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

Δp-qV characteristic curves

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

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

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

Symbol “U“ normally open

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

Symbol “C“ normally closed

Symbol “U“ normally open

Dimensions in mm

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)
➀	Main port 1, pump P3)
➁	Main port 2, actuator A3)
➂	Main port 3, tank T3)
LS	Location shoulder