BOSCH REXROTH
R900562331

$2,476.66 USD

BOSCH REXROTH
Material:R900562331
Model:SYDZ 0001-1X/250V045M

Quantity in stock: 0

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***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 SYDZ 0001-1X/250V045M (R900562331) is a specialized pump preload valve designed for precise pressure control in hydraulic systems. This robust component ensures that the pressure preloading is effective within a specific pressure range, up to a certain bar level. When the operating pressure at port P exceeds this threshold, the preload valve opens completely, allowing for the system to adapt to changing conditions. An integrated pressure relief valve, which is factory-set and non-adjustable as per the ordering code, provides an additional layer of safety by limiting the maximum system pressure. The SYDZ 0001-1X/250V045M includes an integrated check valve that enables pressure control below a certain bar level. This feature is critical for systems where consistent and accurate low-pressure operation is necessary. It's important to note that the pressure limiting function of this component serves as a safety measure and is not intended for continuous operation. This pump preload valve is particularly suited for use with Bosch Rexroth's variable displacement pumps, such as those in the AVSO series with SYDFE adjustment, when only internal pilot fluid is available and there's a need to control flow at operating pressures less than a specified bar level. The unit can be directly mounted onto the SAE pressure connection of these pumps, ensuring seamless integration into existing hydraulic circuits. Upon installation, it's essential to bleed the system properly to ensure optimal performance of the valve. The SYDZ 0001-1X/250V045M comes in various sizes and can handle maximum operating pressures up to a defined limit in bar, making it versatile enough to meet diverse hydraulic requirements while maintaining safety and efficiency within your hydraulic applications.

The pressure pre-loading is only effective within the pressure range up to 20 bar. If the operating pressure in port P1 exceeds 30 bar, the preload valve (1) is completely opened. For limitation of the maximum pressure, a pressure relief valve (2) is integrated in the pump preload valve which is fixedly set at the factory (see ordering code). An integrated check valve (3) that may be available allows for the pressure control in the range < 20 bar.

Notice:

The pressure limiting function is a pure safety function and not suitable for continuous operation!

Upon commissioning, the system is to be bled.

Only for separate order of the pump preload valve

For applications outside these parameters, please consult us!

technical illustration-R900562331-The pump preload valve SYDZ 0001 if the flow of control pumps A10VSO with SYDFE adjustment has to be controllable at an operating pressure of less than 12 bar and only internal pilot fluid is available for the adjustment. The pump preload valve SYDZ 0001 has integrated preload and maximum pressure limitation. Notice: The pressure limitation is determined according to the ordering code (see type key) and is not adjustable. The pump preload valve SYDZ 0001 is directly fastened at the SAE pressure connection of the variable displacement pump A10VSO (see RE 92711 and RE 92714).

1	Preload valve
2	Pressure relief valve
3	Check valve
4	Bleed screw

NG	ØA	B	C	D	E	F	G	ØK	L	M	ØO	PP 1)	P1	P	MP1	T 2)
NG	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
18/28	75	115	104	60.5	30	14	30	34	22.2	47.6	4 x 10,5 mm	SAE 3/4“	G1/2	G1/8	G1/4	G3/8
45	80	115	104	60.5	29	15	33	34	26.2	52.4	4 x 10,5 mm	SAE 1“	G3/4	G1/8	G1/4	G3/8

1)	according to DIN ISO 6162-1
2)	The piping must be completed in L (light row).

The following is not included in the scope of delivery:

Valve mounting screws

for NG18, 28 and 45

4 hexagon socket head cap screws

ISO4762-M10X120-10.9-flZn-240h-L,

friction coefficient μtotal = 0.09 to 0.14 according to VDA 235-101,

Tightening torque MA = 50 Nm,

material number: R913000074

NG	A	B	C	D	E	F	G	H	ØK	L	M	N	ØO	PP	P1	P	MP1	T 3)
NG	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
71	85	150	134	94	55	24	56	44	45	30.2	58.7	4.5	4 x 10,5 mm	SAE 1 1/4“ 1)		G1/8	G1/4	G3/4
100/140	85	147	131	91	52	24	56.5	48	45	31.8	66.7	4.5	4 x 15 mm	SAE 1 1/4“ 2)	SAE 1 1/4“ 2)	G1/8	G1/4	G3/4

1)	according to DIN ISO 6162-1
2)	according to DIN ISO 6162-2
3)	The piping must be completed in L (light row).

The following is not included in the scope of delivery:

Valve mounting screws

for NG71:

4 hexagon socket head cap screws

ISO4762-M10X150-10.9-flZn-240h-L,

friction coefficient μtotal = 0.09 to 0.14 according to VDA 235-101,

Tightening torque MA = 55 Nm,

material number: R913000071

for NG100 and 140:

4 hexagon socket head cap screws

ISO4762-M14X150-10.9-flZn-240h-L,

friction coefficient μtotal = 0.09 to 0.14 according to VDA 235-101,

Tightening torque MA = 100 Nm,

material number: R913000073

BOSCH REXROTHR900562331

Only for separate order of the pump preload valve

BOSCH REXROTH
R900562331