BOSCH REXROTH
R900203850

$181.85 USD

BOSCH REXROTH
Material:R900203850
Model:DBDS2K2X/50

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.

***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 DBDS2K2X/50 (R900203850) is a high-performance industrial hydraulic valve designed for reliable pressure limitation to a preset value. This direct actuated pressure relief valve is intended for block design installation and plays a critical role in the control of system pressure. The valve's size is tailored for efficient operation, and it features a maximum pressure rating of bar, which ensures robust performance under demanding conditions. Equipped with a hexagon screw and protective cap, the DBDS2K2X/50 offers secure and precise adjustments. This model has multiple ports, providing versatility in connection configurations. Its mechanical actuation allows for straightforward operation without the need for additional power sources. The maximum flow rate through this valve is optimized for its size, while the screw-in cartridge design simplifies installation and maintenance. The weight of the unit reflects its sturdy construction, and it utilizes NBR seals compatible with various hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, and HFC types. The DBDS2K2X/50 functions efficiently in its default closed position until system pressure necessitates relief; this process is managed via an adjustment type that can be set as per application requirements. For user convenience and safety, Bosch Rexroth offers different adjustment types for this model: hexagon with protective cap, rotary knob with scale, lockable rotary knob with scale, or hand wheel. This ensures that users can select an option that best suits their operational needs while maintaining precision control over system pressures. In summary, the Bosch Rexroth DBDS2K2X/50 valve excels in providing dependable pressure relief in hydraulic systems across various applications. Its robust design ensures long-term reliability and performance consistency within prescribed operational parameters.

Size 2, P → T, mechanical

Industrial hydraulic valve in a high performance range. Reliable pressure limitation to setting value

Unpacked Weight: 0.235 kg

Function, section, symbol

Pressure valves of type DBD .. K are direct operated pressure relief valves to be installed in block designs. They are used for system pressure limitation. The system pressure can be set via the adjustment type (5).

In the initial position the valve is closed. Via control line (1) and ball (2), the pressure in the main port ① acts on the spring plate (3). If the pressure in the main port ① rises above the value set at the compression spring (4), the ball (2) opens and the hydraulic fluid flows into the main port ②.

technical illustration-R900203850-Size 2, P → T, mechanical

➀	Main port 1 (P)
➁	Main port 2 (T)

Hexagon with protective cap
Direct actuated
Pressure rating 50 bar
Proportional pressure valve in poppet seat design
Component series 2X
Maximum operating pressure 420 bar
Size 2
Maximum flow 2 l/min

Data Sheet	Download Data Sheet
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual

Spool symbol	P → T
Max. pressure	420
Productgroup ID	9,10,11,12,13,14
Number of ports	2
Type of actuation	with mechanical actuation
Size	2
Max. flow	2
Type of connection	Screw-in cartridge valve
Number of switching positions	2
Weight	0.235
Seals	NBR
Hydraulic fluid	HL,HLP,HLPD,HVLP,HVLPD,HFC

01	02	03	04	05		06	07	08	09
DBD		2	K	2X	/			V	*

01	Pressure relief valve, direct controlled	DBD
Adjustment type
02	Hexagon with protective cap	S
	Rotary knob with scale	L
	Lockable rotary knob with scale	A
	Hand wheel	H
03	Size 2	2
04	Screw-in cartridge valve	K
05	Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions)	2X
Pressure rating
06	Set pressure up to 25 bar	25
	Set pressure up to 50 bar	50
	Set pressure up to 100 bar	100
	Set pressure up to 200 bar	200
	Set pressure up to 315 bar	315
	Set pressure up to 420 bar	420
Sealed set pressure (adjustment type “S” only)
07	Unsealed	no code
07	Sealed – please specify set pressure (setting interval si]5 bar[/si][imp]75 psi[/imp] )	P...1)
Seal material
08	NBR seals	no code
	FKM seals	V
	Observe compatibility of seals with hydraulic fluid used. (Other seals upon request)
09	Further details in the plain text	*

1)	Order example: Set pressure 190 bar → DBDS 2 K2X/200P180V

For applications outside these parameters, please consult us!

general

Size		2
Weight (approx.)	kg	0.3
Installation position		any
Ambient temperature range	°C	-20 … +80

hydraulic

Size			2
Maximum operating pressure	Inlet	bar	420
Maximum operating pressure	Outlet	bar	315
Maximum set pressure		bar	25 50 100 200 315 420
Maximum flow		l/min	2
Maximum flow	Recommended	l/min	1.5
Hydraulic fluid			see table
Hydraulic fluid temperature range		°C	-20 … +80
Viscosity range		mm²/s	10 … 800
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.

Hydraulic fluid		Classification	Suitable sealing materials	Standards	Data sheet
Mineral oils		HL, HLP, HLPD, HVLP, HVLPD	NBR, FKM	DIN 51524	90220
Bio-degradable	Insoluble in water	HETG	NBR, FKM	ISO 15380	90221
	Insoluble in water	HEES	FKM	ISO 15380
	Soluble in water	HEPG	FKM	ISO 15380
Flame-resistant	Water-free	HFDU, HFDR	FKM	ISO 12922	90222
Flame-resistant	Containing water	HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620 )	NBR	ISO 12922	90223
Important information on hydraulic fluids: For further information and data on the use of other hydraulic fluids, please refer to the data sheets above or contact us! There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! The flash point of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature. Flame-resistant – containing water: Maximum pressure differential per control edge 50 bar. Pressure pre-loading at the tank port >20 % of the pressure differential; otherwise, increased cavitation. Life cycle compared to operation with mineral oil HL, HLP 50 to 100 % Bio-degradable and flame-resistant: When using hydraulic fluids that are simultaneously zinc-solving, zinc may accumulate (per pole tube 0.7 g zinc).

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

p-qV characteristic curves

Notice:

The characteristic curves apply to output pressure = zero in the entire volume flow range and were measured without housing resistance.

General information

Hydraulic counter pressures in the main port ➁ (T) add 1:1 to the response pressure of the valve set at the adjustment.

Example:

Pressure adjustment of the valve due to spring preloading (item 4 on product description) pspring = 200 bar Hydraulic counter pressure in the main port ➁ (T): phydraulic = 50 bar

⇒ Response pressure = pspring + phydraulic = 250 bar

Dimensions in mm

Mounting cavity: R/DBD . 2K; 2 main ports; thread M24 x 1.5