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DA20-1-5X/315-17/12

Manufacturer: Bosch Rexroth

Material #: R978898564

Model : DA20-1-5X/315-17/12

Destination

$2,424.31 USD

Availability: Backordered

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Qty:
Delivered as early as February 12, 2027

$2,545.53 USD

Availability: Backordered

Ships from CA

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

Qty:
Delivered as early as February 12, 2027

This product is eligible for factory repair.

Start Repair

For subplate mounting As cartridge valve 4 adjustment types, optionally:
• Rotary knob
• Adjustment spindle with protective cap
• Lockable rotary knob with scale
• Rotary knob with scale 4 pressure ratings Solenoid-operated unloading via built-on directional spool valve

Type DA…FS… (freely adjustable switching pressure differential)

The pressure valve type DA is a pilot-operated pressure cut-off valve. For example, it is used in accumulator charging circuits. Here, an accumulator is filled until the accumulator charging pressure is reached. After reaching the accumulator pressure, the valve switches the flow to depressurized circulation until the pressure in the hydraulic system has fallen by the switching pressure differential. Afterwards, the charging process is started again.

The pressure cut-off valve generally consists of main housing (1), pilot control valve (2 and 3), main spool insert (4) and check valve (7).

Switching of the pump flow from P to B to P to T.

The pump delivers via the check valve (7) into the hydraulic system (P to A). The pressure applied in channel A acts via the control line (8) on the control spool in the pilot control valve (3). Simultaneously, the pressure in channel P is applied via nozzle (5) to the spring-loaded side of the main spool (4) and via the control line (9) and at the inlet (11) of the screw-in cartridge valve (3). As soon as the top cut-off pressure set at the screw-in cartridge valve (3) by means of the adjustment spindle (12) is reached in the hydraulic system, the screw-in cartridge valve opens the connection from the spring-loaded side of the main spool (4) to the return line (10) to T internally (type DA ...) or externally via port Y (type DA ...Y).

Due to the nozzle (5), a pressure drop occurs at the main spool (4). It is lifted from the seat and opens connection P to T. The check valve (7) closes the connection from P to A. The actuator pressure A holds the screw-in cartridge valve (3) in open position.

Switching of the pump flow from P to T to P to A.

If the actuator pressure A has fallen to the pressure value set at the adjustment spindle (14), the screw-in cartridge valve (3) switches to initial position and closes the connection from the spring-loaded side of the main spool (4) to the return line (10). This way, the pressure on the spring-loaded side of the main spool (4) is increased and the connection from P to T is closed by the compression spring (6). The pump again delivers via the check valve (7) into the hydraulic system from P to A.

Version "FSB07"

The nozzle of this valve is located in the control line (11) for potential switching shock damping. This way, the circulation pressure (P to T) is increased. See characteristic curves.

Type DA 10 -2-5X/.FS…

Notices!

Only indirect pressure limiting function:

A pressure limiting function of the pump pressure (to the tank) is not directly provided but only indirectly via the check valve (7), control line (8) and pilot control valve (2) to channel T.

Setting the switching pressure differential

At the factory, the valves are set at nominal pressure to a switching pressure differential of approx. 10 % to 12 %. A setting of 50 % of the nominal pressure is possible.

On delivery, the adjustment spindle (12) is screwed out and set to the minimum adjustable switching pressure.

By screwing in the adjustment spindle (12), the top switching pressure may be increased.

The switching pressure differential is adjusted via the adjustment spindle (14): Screw out to reduce, screw in to increase.

The pressure adjustments are secured via the clamping screw (13) and lock nut (15).

Different system conditions (particularly high pump and actuator flows) may lead to higher switching pressures than indicated in the characteristic curves. Here, the valve offers the possibility of optional adjustment of the switching pressure differential to the system.

Type DA… (fixed switching pressure differential 10 % or 17 %)

The function of this valve complies with the function of version "FS". At the pilot control valve, however, only the top switching pressure and not the switching pressure differential can be set.

The pilot spool surface (16) exceeds the effective ball (17) surface optionally by 10 % or 17 %.

This way, the effective force at the pilot spool (16) exceeds the effective force at the ball (17) by 10 % or 17%.

Switching of the pump flow from P to B to P to T.

The pressure in channel P is applied via nozzles (5) and (9) to the spring-loaded side of the main spool (4) and at ball (17) in the pilot control valve (2). As soon as the cut-off pressure set at the adjustment spindle (12) is reached in the hydraulic system, the ball (17) opens against the spring (18). The hydraulic fluid now flows via nozzles (5) and (9) into the spring chamber (19) to the return line (10) to T (type DA ...) or externally via port Y (type DA ...Y). The main spool (4) is lifted from the seat and opens connection P to T. The check valve (7) closes the connection from P to A. Via the pilot spool (16), the actuator pressure A holds the ball in the pilot control valve (2) in open position.

Switching of the pump flow from P to T to P to A.

If the actuator pressure A drops by the switching pressure differential range of 10 % or 17 % in comparison with the set cut-off pressure (according to characteristic curves on page 11), the spring (18) closes the ball (17) in the pilot control valve (2). This way, the pressure on the spring-loaded side of the main spool (4) is increased and the connection from P to T is closed by the compression spring (6). The pump again delivers via the check valve (7) into the hydraulic system from P to A.

Type DA 10 -1-5X/…

Type DAC…

Pressure cut-off valve type DAC 30 …FS…

This valve consists of pilot control housing (2), screw-in cartridge valve (3) as pilot control element and a main spool insert (4).

Pressure cut-off valve type DAC …10/17...

This valve consists of pilot control valve (2) and an optional main spool insert (4).

Information for circuit design with type DAC...

The ports required for actuator (A), pump (P) and tank (T), the required control lines (8) and (10) as well as the required check valve (7) are not included in the scope of delivery. These have to be selected according to the applicable size and the flow. Connections require sufficient cross-section and blocking has to be prevented by appropriate design and layout. Between actuator (A) and pump (P), a sufficiently dimensioned check valve with flow characteristics in compliance with or exceeding the characteristic curves specified on page 12 has to be applied.

01	02	03	04	05		06		07		08		09	10	11	12		13	14	15	16	17	18
DA					–		–	5X	/		–					–						*

01	Pressure cut-off valve	DA
02	without directional spool valve	no code
03	Valve complete (subplate mounting)	no code
	Pilot control valve without main spool insert (cartridge valve) (do not enter nominal size)	C 1)
	Pilot control valve with main spool insert (cartridge valve) (enter valve size 30)	C
04	Size 10	10
	Size 25	20
	Size 32	30
Adjustment types
06	Rotary knob	1
	Adjustment spindle with protective cap	2
	Lockable rotary knob with scale	3 2)
	Rotary knob with scale	7
07	Component series 50 … 59 (50 … 59: unchanged installation and connection dimensions)	5X
Pressure adjustment range
08	25 to 50 bar	50
	50 to 100 bar	100
	100 to 200 bar	200
	200 to 315 bar	315
Switching pressure differential (P → A)
09	on average 10 %	10
	on average 17 %	17
	freely adjustable switching pressure differential (see characteristic curves)	FS 4)
Damping nozzle
10	without nozzle	no code
10	Nozzle Ø 0.7 mm (see characteristic curves)	B07 6)
11	Pilot oil return, internal	no code
11	Pilot oil return, external	Y
12	without directional spool valve	no code
13	Direct voltage 24 V	G24 1)
13	Alternating voltage 230 V, 50/60 Hz	W230 1)
14	With concealed manual override	N9 1)
	With manual override	N 1)
	Without manual override	no code
Electrical connection
15	without mating connector, individual connection with connector according to DIN EN 175301-803	K4 1; 3)
Seal material
16	NBR seals	no code
	FKM seals (other seals upon request)	V
	Observe compatibility of seals with hydraulic fluid used.
17	Further details in the plain text	*

	1) Only versions "10" and "17".
	2) H-key with material no. R900008158 is included in the scope of delivery.
	3) Mating connectors, separate order.
	4) Only with version "2".
	5) With nozzle: Switching shock damping leads to increased circulation pressure (P → T)
	Without nozzle: Undamped leads to reduced circulation pressure (P → T) (see characteristic curves)
	6) Only with version "FS"

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

general

Size			10	25	32
Weight	Type DA	kg	3.8	7.7	13.5
	Type DA …FS	kg	4.4	8.3	14.1
	Type DAC …	kg	1.2
	Type DAC 30…	kg	1.4
	Type DAC 30…FS	kg	1.9
Installation position			any
Ambient temperature range	NBR seals	°C	-30 … +80
Ambient temperature range	FKM seals	°C	-20 … +80

hydraulic

Size			10	25	32
Maximum operating pressure	Port P	bar	315
	Anschluss A 1)	bar	315
	Port T 2) 3)	bar	100
	Port Y 2) 3)	bar	100
Set pressure range	Pressure rating 50	bar	25 … 50
	Pressure rating 100 4)	bar	50 … 100
	Pressure rating 200 4)	bar	100 … 200
	Pressure rating 315 4) 5)	bar	200 … 315
Switching pressure differential	Version "FS"		freely adjustable (10 % to 50 % of nominal set pressure)
	Version "10" 4)	%	10
	Version "17" 4)	%	17
Maximum flow	Version "FS"	l/min	120	250	400
	Version "10"	l/min	40	80	120
	Version "17"	l/min	60	120	240
Hydraulic fluid			Mineral oil (HL, HLP) according to DIN 51524, other hydraulic fluids on request
Hydraulic fluid temperature range	NBR seals	°C	-30 … +80
	FKM seals	°C	-20 … +80
Viscosity range	Maximum	mm²/s	10 … 800
	Recommended	mm²/s	20 … 60
Maximum admissible degree of contamination of the hydraulic fluid 6)			Class 20/18/15 according to ISO 4406 (c)

1)	(after switching P to T)
2)	Attention! The applied pressure adds to the set pressure! The switching pressure differential remains unchanged within the setting range!
3)	The tank pressure must not exceed the pump pressure.
4)	For switching pressure differential adjustment, the following points must be observed:The top and bottom switching points must be within the setting range of the pressure rating (e.g. for a pressure rating of 100 bar: top switching point 100 bar, bottom switching point 50 bar ≙ 50 % switching pressure differential)– The minimum switching pressure differential mainly depends on the system (set pressure, pump and actuator flow, accumulator size and preload, line length and resistance, etc.) Here, the valve offers the possibility of optional adjustment of the switching pressure differential to the system. For these reasons, however, the minimum adjustable switching pressure differential of the valve cannot always be realized at the system. – Generally: Reduce the tubing between pressure cut-off valve and hydraulic accumulator to a minimum and ensure depressurized pilot oil (Y) discharge as possible. – For the switching pressure differential factory setting, refer to the respective information sheet.
5)	Type DA …FS... 150 to 315 bar
6)	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)

Size 10

Circulation pressure dependent on flow qV P and damping (P → T)

Size 25

Circulation pressure dependent on flow qV P and damping (P → T)

Size 32

Circulation pressure dependent on flow qV P and damping (P → T)

Notice!

The flow depends on the set switching pressure differential.

Pressure rating 50 bar

Switching pressure differential (P → A) dependent on the cut-off pressure pO (type DA …)

Pressure rating 100 bar

Switching pressure differential (P → A) dependent on the cut-off pressure pO (type DA …)

Pressure rating 200 bar

Switching pressure differential (P → A) dependent on the cut-off pressure pO (type DA …)

Pressure rating 315 bar

Switching pressure differential (P → A) dependent on the cut-off pressure pO (type DA …)

Switching pressure differential (P → A); pressure adjustment range pU dependent on the cut-off pressure pO (type DA …FS)

Size 10

Δp-qV characteristic curves via check valve (P → A)

Size 25

Δp-qV characteristic curves via check valve (P → A)

Size 32

Δp-qV characteristic curves via check valve (P → A)

1	Minimum switching pressure differential
2	Maximum switching pressure differential
3	Pressure adjustment range pU

Type DA …

Type DA …Y…

Type DA …FS…

Type DA …FS.Y…

Type DAC 30 …FS…

Type DAC 30 …FS.Y…

Hydraulic system with hydraulic accumulator

Hydraulic system with high- and low-pressure pump

Application notes:

Reduce the tubing between pressure cut-off valve and hydraulic accumulator to a minimum! In case of high line resistance, use version "DA.../SO80" (separate control line from pilot control valve to hydraulic accumulator)! In case of high pump flow and low switching pressure differential (10 %), version "Y" should be preferred.

Attention!

Accumulators may only be operated with suitable accumulator safety equipment! Version "FS" does not directly provide a pressure limiting function of the pump pressure (to the tank) but only indirectly via the check valve and the control line in the actuator channel. Observe the safety instructions on circuit design!

1	to actuator
2	High-pressure pump
3	Low-pressure pump

Type DA…FS, NG10; subplate mounting

Dimensions in mm

1	Name plate
2	Y port for pilot oil return, external
4	Adjustment type "2"
8	Hexagon SW10
10	Locking pin
11	Space required to remove the mating connector
12	Mating connector without circuitry (separate order)
13	Mating connector with circuitry (separate order)
14	Directional spool valve NG6
15	Dimension for solenoid without manual override
16	Dimension for solenoid with manual override “N”
24	Omitted with internal pilot oil return
25	Identical seal rings for ports A, P, T
26	Integrated check valve
28	Valve mounting bores (valve mounting screws, see dimensions)

Valve mounting screws (separate order)

4 hexagon socket head cap screws

ISO 4762 - M10 x 50 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

Tightening torque MA = 59 Nm ± 10 %,

material no. R913000471

Valve mounting screws (separate order)

4 hexagon socket head cap screws

ISO 4762 - M10 x 50 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

Tightening torque MA = 59 Nm ± 10 %,

material no. R913000471

Type DA…, NG10; subplate mounting

Dimensions in mm

1	Name plate
2	Y port for pilot oil return, external
3	Adjustment type "1"
4	Adjustment type "2"
5	Adjustment type "3"
6	Adjustment type "7"
7	Lock nut SW22
8	Hexagon SW10
9	Space required to remove the key
10	Locking pin
11	Space required to remove the mating connector
12	Mating connector without circuitry (separate order)
13	Mating connector with circuitry (separate order)
14	Directional spool valve NG6
15	Dimension for solenoid without manual override
16	Dimension for solenoid with manual override “N”
24	Omitted with internal pilot oil return
25	Identical seal rings for ports A, P, T
26	Integrated check valve
28	Valve mounting bores (valve mounting screws, see dimensions)

Valve mounting screws (separate order)

4 hexagon socket head cap screws

ISO 4762 - M10 x 50 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

Tightening torque MA = 59 Nm ± 10 %,

material no. R913000471

Valve mounting screws (separate order)

4 hexagon socket head cap screws

ISO 4762 - M10 x 50 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

Tightening torque MA = 59 Nm ± 10 %,

material no. R913000471

Type DA…FS, NG25 and 32; subplate mounting

Dimensions in mm

1	Name plate
2	Y port for pilot oil return, external
4	Adjustment type "2"
8	Hexagon SW10
11	Space required to remove the mating connector
12	Mating connector without circuitry (separate order)
13	Mating connector with circuitry (separate order)
14	Directional spool valve NG6
15	Dimension for solenoid without manual override
16	Dimension for solenoid with manual override “N”
24	Omitted with internal pilot oil return
25	Identical seal rings for ports A, P, T
27	Check valve (sandwich plate)
28	Valve mounting bores (valve mounting screws, see dimensions)

Valve mounting screws (separate order)

NG25:

4 hexagon socket head cap screws ISO 4762 - M16 x 100 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

Tightening torque MA = 200 Nm ± 10 %,

material no. R913000558

2 hexagon socket head cap screws ISO 4762 - M16 x 60 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

Tightening torque MA = 200 Nm ± 10 %,

material no. R913000031

NG32:

4 hexagon socket head cap screws M18 x 120 - DIN 912-10.9

Friction coefficient µtotal = 0.12 to 0.17,

Tightening torque MA = 300 Nm ± 10 %,

material no. R900003282

2 hexagon socket head cap screws M18 x 80 - DIN 912-10.9

Friction coefficient µtotal = 0.12 to 0.17,

Tightening torque MA = 300 Nm ± 10 %,

material no. R900003279

Type DA…, NG25 and 32; subplate mounting

Dimensions in mm

1	Name plate
2	Y port for pilot oil return, external
3	Adjustment type "1"
4	Adjustment type "2"
5	Adjustment type "3"
6	Adjustment type "7"
7	Lock nut SW22
8	Hexagon SW10
9	Space required to remove the key
11	Space required to remove the mating connector
12	Mating connector without circuitry (separate order)
13	Mating connector with circuitry (separate order)
14	Directional spool valve NG6
15	Dimension for solenoid without manual override
16	Dimension for solenoid with manual override “N”
24	Omitted with internal pilot oil return
25	Identical seal rings for ports A, P, T
27	Check valve (sandwich plate)
28	Valve mounting bores (valve mounting screws, see dimensions)

Type DAC 30 …FS; cartridge valve

Dimensions in mm

1	Name plate
2	Y port for pilot oil return, external
4	Adjustment type "2"
8	Hexagon SW10
11	Space required to remove the mating connector
12	Mating connector without circuitry (separate order)
13	Mating connector with circuitry (separate order)
14	Directional spool valve NG6
15	Dimension for solenoid without manual override
16	Dimension for solenoid with manual override “N”
17	Identical seal rings for ports A, Y
18	Main piston
19	O-ring
20	O-ring
21	O-ring
22	Support ring
23	Support ring
28	Valve mounting bores (valve mounting screws, see dimensions)
29	Tightening torque MA = 60 Nm

Valve mounting screws (separate order)

4 hexagon socket head cap screws

ISO 4762 - M8 x 50 - 10.9-flZn-240h-L

at friction coefficient μtotal = 0.09 to 0.14,

Tightening torque MA = 30 Nm ± 10 %,

material no. R913000543

Type DAC and DAC 30; cartridge valve

Dimensions in mm

1	Name plate
2	Y port for pilot oil return, external
3	Adjustment type "1"
4	Adjustment type "2"
5	Adjustment type "3"
6	Adjustment type "7"
7	Lock nut SW22
8	Hexagon SW10
9	Space required to remove the key
11	Space required to remove the mating connector
12	Mating connector without circuitry (separate order)
13	Mating connector with circuitry (separate order)
14	Directional spool valve NG6
15	Dimension for solenoid without manual override
16	Dimension for solenoid with manual override “N”
17	Identical seal rings for ports A, Y
18	Main piston
19	O-ring
20	O-ring
21	O-ring
22	Support ring
23	Support ring
28	Valve mounting bores (valve mounting screws, see dimensions)

Valve mounting screws (separate order)

4 hexagon socket head cap screws

ISO 4762 - M8 x 40 - 10.9-flZn-240h-L

at friction coefficient μtotal = 0.09 to 0.14,

Tightening torque MA = 30 Nm ± 10 %,

material no. R913000205

Installation bore
Dimensions in mm

Dimensions in mm

1	Bore Ø32 mm can cut into Ø45 mm at any position. However, it must be observed that connection bore A and the mounting bores are not damaged!
2	Support ring and seal rings are to be inserted into this bore before assembly of the main spool!
3	Check valve (separate order). For positioning of the check valve and pilot oil bore, sufficient clearance to the main spool insert is to be ensured.

NG	L1	L2	L3	L4	L5	L6	L7	L8	L9	B1	B2	H1	H2	H3	H4	H5	ØD1
NG	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
25	149	19	101.6	57.1	12.7	46	112.7	15.5	41.5	100	70	154	129	72	46	28	18
32	190	34	127	63.5	12.7	50.8	139.7	26	66.5	116	82.5	175	150	93	67	45	20

NG	L1	L2	L3	L4	L5	L6	L7	L8	L9	B1	B2	H1	H2	H3	H4	H5	ØD1
NG	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
25	149	19	101.6	57.1	12.7	46	112.7	12	42	100	70	144	124	72	46	28	18
32	190	34	127	63.5	12.7	50.8	139.7	22.5	63	115	82.5	165	145	93	67	45	20

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z4

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z4

For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)

Data sheet

Spare parts & repair

Mating connectors for valves with connector “K4”, with indicator light

3P Z5L

Mating connectors for valves with connector “K4”, with indicator light

3P Z5L

For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)

Data sheet

Spare parts & repair

Rexroth Training

DA20-1-5X/315-17/12

Manufacturer: Bosch Rexroth

Material #: R978898564

Model : DA20-1-5X/315-17/12

Availability: Backordered

Availability: Backordered

This product is eligible for factory repair.

Type DA…FS… (freely adjustable switching pressure differential)

Type DA 10 -2-5X/.FS…

Type DA… (fixed switching pressure differential 10 % or 17 %)

Type DA 10 -1-5X/…

Type DAC…

general

hydraulic

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

Size 10

Size 25

Size 32

Pressure rating 50 bar

Pressure rating 100 bar

Pressure rating 200 bar

Pressure rating 315 bar

Switching pressure differential (P → A); pressure adjustment range pU dependent on the cut-off pressure pO (type DA …FS)

Size 10

Size 25

Size 32

Type DA …

Type DA …Y…

Type DA …FS…

Type DA …FS.Y…

Type DAC 30 …FS…

Type DAC 30 …FS.Y…

Hydraulic system with hydraulic accumulator

Hydraulic system with high- and low-pressure pump

Type DA…FS, NG10; subplate mounting

Type DA…, NG10; subplate mounting

Type DA…FS, NG25 and 32; subplate mounting

Type DA…, NG25 and 32; subplate mounting

Type DAC 30 …FS; cartridge valve

Type DAC and DAC 30; cartridge valve

Installation bore Dimensions in mm

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Installation bore
Dimensions in mm