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The SYDZ0001-1X/250V071M hydraulic control module belongs to the SYD Hydraulic Control Systems series from Bosch Rexroth. It regulates pressure and flow in automated circuits by interfacing directly with an A10VSO pump that has a nominal size of 71, ensuring the displacement range needed in medium-capacity power units. A preload effective up to 20 bar keeps the pump primed before the main stage opens, while the full-open point of 30 bar allows initial flow without excessive back-pressure. During service the internal relief limits pressure to 250 bar, and the housing is rated for a maximum operating pressure of 350 bar to withstand transient spikes. A SAE 1 1/4-inch flange according to DIN ISO 6162-1 supports rigid mounting to Light Series (L) piping, and seals remain compatible with mineral oil grades HL and HLP defined in DIN 51524.
For installation, the body provides four mounting holes of 10.5 mm diameter so the unit can be fastened securely to a manifold plate. It accepts ISO 4762 M10 × 150 screws; a strength class of 10.9 resists shear under full system pressure, and each screw must be tightened to 55 Nm to achieve the required clamping load. Hydraulic connections are threaded to standardize plumbing: the Mp1 pilot port uses a G1/4 thread, the main P inlet uses G1/8, and the T return port is cut to G3/4 to accommodate higher flow back to tank. These port sizes align with the flange orientation and make hose selection straightforward while preserving the pressure ratings described earlier.
Compatible Pump Nominal Size
71
Compatible Pump Type
A10VSO
Flange Connection (pp)
SAE 1 1/4" (DIN ISO 6162-1)
Full Open Pressure (p1)
30 bar
Maximum Operating Pressure
350 bar
Mounting Holes
4 (Ø10.5 mm)
Mounting Screw Size
ISO 4762 M10×150
Mounting Screw Strength Class
10.9
Mounting Screw Tightening Torque
55 Nm
Piping Requirement
Light Series (L)
Port Mp1 Thread
G1/4
Port P Thread
G1/8
Port T Thread
G3/4
Preload Effective Up To
20 bar
Pressure Limitation Setting
250 bar
Seal Compatibility
Mineral Oil (HL, HLP) DIN 51524
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