Bosch Rexroth | SFA40FT0-1XM01
SFA40FT0-1X/M/01
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The SFA40FT0-1X/M/01 belongs to the SF Prefill Valves series from Bosch Rexroth and is intended to control fluid movement during rapid filling and emptying cycles in hydraulic automation. Nominal size 40 establishes the flow capacity suited for medium-to-large cylinders. A flange connection designed to ISO 6162-1 mates directly with standard subplates, while the DIN 3852-2 pipe-thread version provides a sealed interface for pilot and drain lines. Four M16 mounting holes secure the body to the manifold, and a Ø6.5 × 6 mm centering bore positions the valve accurately relative to tank openings. A 0.8 mm control nozzle meters pilot oil so that opening speed remains predictable under varying system pressures. NBR seals resist common hydraulic oils, and the ability to mount in any position simplifies layout inside confined power units.
This pilot-operated check design locks the prefill port until a pilot signal acts, ensuring cylinders remain supported when external loads pull on the rod. A dedicated tank bore lets the valve relieve return flow directly to reservoir without additional fittings. Port A withstands up to 16 bar, port B / p handles 350 bar, and port X accepts 150 bar, allowing differential pressure staging between main and pilot circuits. Required fluid cleanliness of ISO 4406 20/18/15 limits particle contamination to maintain seat integrity, and the absence of pre-decompression means any pressure equalization must be managed elsewhere in the circuit.
Technical Specifications
Centering Bore
Ø6.5 x 6 mm
Connection Type
Flange
Connection Version
DIN 3852-2 Pipe Thread
Control Nozzle Diameter
0.8 mm
Flange Standard
ISO 6162-1
Fluid Cleanliness Class
ISO 4406 20/18/15
Installation Position
Any
Max Pressure (port A)
16 bar
Max Pressure (port B/p)
350 bar
Max Pressure (port X)
150 bar
Mounting Holes
4 x M16
Pre-decompression
No
Seal Material
NBR
Size
40
Tank Bore
Yes
Valve Type
Pilot-Operated Check Valve
1620 Old Apex Road
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