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BOSCH REXROTH
R900538904


$2,851.42 USD
  • BOSCH REXROTH
  • Material:R900538904
  • Model:SYDZ 0001-1X/200V140M

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 SYDZ 0001-1X/200V140M (R900538904) is a pump preload valve designed to support the control of flow in variable displacement pumps, specifically the AVSO series with SYDFE adjustment, when operating pressures are below a certain threshold and only internal pilot fluid is available for adjustment. This valve is equipped with pressure preloading effective within a specified pressure range and includes an integrated pressure relief valve that has been preset at the factory to limit maximum pressure—details of which can be found in the ordering code documentation. Additionally, it features an integrated check valve for controlling pressures under a certain bar. The SYDZ 0001-1X/200V140M is designed for direct attachment to the SAE pressure connection of AVSO variable displacement pumps, ensuring a secure and efficient setup. It comes in various sizes and can accommodate maximum operating pressures up to a specified bar limit. It's important to note that while this pump preload valve includes a pressure limiting function, it is intended solely as a safety feature and is not meant for continuous operation. Commissioning this component requires system bleeding to ensure proper functionality. The non-adjustable nature of the pressure limitation according to the type key ensures reliability and compliance with predetermined safety standards set by Bosch Rexroth. This makes the SYDZ 0001-1X/200V140M an essential component for hydraulic systems requiring precise control over pump flow and pressure within specific operational parameters.

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-R900538904-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&nbsp;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

technical illustration-R900538904-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&nbsp;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).

NG

ØA

B

C

D

E

F

G

ØK

L

M

ØO

PP 1)

P1

P

MP1

T 2)

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

technical illustration-R900538904-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&nbsp;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).

NG

A

B

C

D

E

F

G

H

ØK

L

M

N

ØO

PP

P1

P

MP1

T 3)

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