Bosch Rexroth | ZSF80F0-1-1XM01
ZSF80F0-1-1X/M/01
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The ZSF80F0-1-1X/M/01 prefill valve is produced by Bosch Rexroth for the ZSF Prefill Valves series and serves to admit or discharge oil quickly in hydraulic presses or similar automation stages. As a pilot-operated check design, it holds a load until control pressure releases the poppet, preventing unintended cylinder motion. The size 80 format delivers a high flow cross-section for large actuator volumes, while the sandwich plate design allows the unit to be stacked between standard subplates without extra piping. A flange connection simplifies mounting to manifolds, and port threads conform to ISO 228-1 to match common pipe fittings. The valve can be installed in any position so layout restrictions are minimal. Because pre-decompression is omitted, the poppet opens directly under pilot pressure, shortening cycle time. NBR sealing elements provide compatibility with conventional hydraulic oils, and the assembly weighs 10 kg, allowing manual handling during maintenance.
The hydraulic limits support diverse system pressures: the a-port withstands up to 16 bar so it can vent the tank line safely, the b or P port is rated for 350 bar to manage high-pressure filling strokes, and the x pilot port tolerates 150 bar to guarantee reliable poppet actuation. An ambient temperature span from –30 to +80 °C keeps the valve functional in outdoor or unconditioned plant areas, while the permitted fluid temperature of –30 to +70 °C aligns with mineral oil stability. Operation remains consistent with fluid viscosities between 10 and 800 mm²/s, accommodating both cold-start and heated oil conditions. The cleanliness requirement of ISO 4406 20/18/15 limits particulate contamination, reducing seat wear and leakage. Together these parameters define safe working boundaries and help integrators select filtration, cooling, and pressure-control components that complement the valve.
Technical Specifications
Ambient Temp Range
–30 to +80 °C
Cleanliness Class
ISO 4406 20/18/15
Connection Type
Flange
Design
Sandwich Plate
Fluid Temp Range
–30 to +70 °C
Installation Position
Any
Max Operating Pressure (a)
16 bar
Max Operating Pressure (b, P)
350 bar
Max Operating Pressure (x)
150 bar
Port Threads (p, X)
ISO 228-1
Pre-decompression
Without
Seal Material
NBR
Size
80
Valve Type
Pilot-Operated Check
Viscosity Range
10 to 800 mm²/s
Weight
10 kg
1620 Old Apex Road
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