Bosch Rexroth | SYDZ0001-1X250V140M
SYDZ0001-1X/250V140M
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The SYDZ0001-1X/250V140M valve assembly belongs to the SYD Hydraulic Control Systems series and is manufactured by Bosch Rexroth. It regulates pressure and flow in hydraulic automation circuits connected to axial piston pumps. The unit matches pumps with a nominal size of 100/140 to maintain correct displacement under load, and an A10VSO SAE pressure port interface lets it mount directly on compatible pump housings. Secure fixation uses M14 × 150 class 10.9 screws tightened to 100 Nm so the body stays stable during pressure cycling. A bleed screw is included to purge trapped air during commissioning, and an integrated check valve blocks reverse flow when the pump stops. The assembly tolerates operating pressures up to 350 bar for heavy-duty service, while an internal relief opens at 250 bar to protect downstream components from over-pressure.
Hydraulic connections are organized to streamline circuit design. An Mp1 port with a G1/4 thread supports pressure sensing or auxiliary lines, and a P port threaded G1/8 supplies pilot control fluid. Return flow exits through a T port threaded G3/4, separating drainage from pressure lines. Main pressure enters through a P1 port sized SAE 1 1/4 per ISO 6162-2, and a parallel Pp port of the same SAE 1 1/4 dimension following ISO 6162-1 offers an alternative flange style. The preload stage remains effective up to 20 bar to stabilize initial pump flow, and the passage becomes fully open above 30 bar to reduce restriction once running pressure is established. Seals are compatible with mineral oil grades HL and HLP to ensure service life with common industrial fluids.
Technical Specifications
Bleed Screw
Included
Integrated Check Valve
Yes
Maximum Operating Pressure
350 bar
Mounting Interface
A10VSO SAE Pressure Port
Mounting Screw Size (ng100/140)
M14 x 150 (10.9)
Mounting Screw Torque (ng100/140)
100 Nm
Mp1 Port Thread
G1/4
P Port Thread
G1/8
P1 Port Size
SAE 1 1/4 (ISO 6162-2)
Pp Port Size
SAE 1 1/4 (ISO 6162-1)
Pre-load Effective Up To
20 bar
Pre-load Fully Open Above
30 bar
Pressure Relief Setting
250 bar
Pump Nominal Size
100/140
Seal Compatibility
Mineral Oil (HL, HLP)
T Port Thread
G3/4
1620 Old Apex Road
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