Pump pre-load valve for the SYDFE control system

PRECHARGE VALVE 

SYDZ 0001-1X/300V045M 

R900560849, rexroth

Features  

SYDZ 0001 pump pre-load valves are used when the flow from A10VSO variable displacement pumps with a SYDFE control must be controllable at operating pressures lower than 12 bar and only internal pilot oil is available for adjustment.  

SYDZ 0001 pump pre-load valves are provided with an integrated pre-load and maximum pressure relief feature.  

Note: The pressure relief feature will be set according to the ordering code (see page 2) and cannot be adjusted The valve is mounted directly onto the SAE pressure port of the A10VSO variable displacement pump (see RE 92711 and RE 92714). 

Material Number (SAP):

R902650902, R902650903, R900537400, R900537401, R900537402, R900537404, R900537406, R900538413, R900538904, R900539575, ...

Weight: 3.4 KG

Type SYDZ 0001

Series 1X

Maximum operating pressure 350 bar

Functional description

The pre-load function is only effective within the pressure

range of up to 20 bar. If the operating pressure in port P1 ex

ceeds 30 bar, the pre-load valve (1) is fully open. In order to

limit the maximum pressure, a factory-preset pressure relief

valve (2) is integrated into the pre-load valve (see ordering

details). In addition, an integrated check valve (3) allows the

pressure to be controlled in the range < 20 bar.

Note:

The pressure relief function is purely a safety function and is

not suitable for continuous use!

The system must be bled during commissioning