Product Overview
The Rexroth SL 10 GA 1-42 (Material No. R900483370) is a pilot-operated check valve from the SL series of modular sandwich plate valves, designed for leak-free load holding and controlled return flow in hydraulic systems. Manufactured by Bosch Rexroth, this valve is built to the ISO 4401 / DIN 24340 size 10 (NG10 / CETOP 5) interface standard, allowing direct sandwich mounting between a directional control valve and the subplate. The valve blocks flow in one direction without leakage and permits free reverse flow only when a pilot pressure signal is applied to the integrated pilot piston. This makes it an essential component for load-holding circuits, cylinder locking, and preventing uncontrolled actuator drift in industrial hydraulic power units.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot-Operated Check Valve (Modular Sandwich Plate Valve) |
| Model Designation | SL 10 GA 1-42 / R900483370 |
| Nominal Size | NG10 (CETOP 5 / ISO 4401 size 10) |
| Operating Pressure | Up to 315 bar (working pressure, standard industrial grade) |
| Cracking / Pilot Pressure Ratio | Pilot ratio approximately 1:4.5 (dependent on configuration) |
| Mounting & Connection | Sandwich plate mounting per ISO 4401 / DIN 24340, size 10 interface |
| Sealing Material | NBR (standard); FKM available on request |
| Hydraulic Fluid | Mineral oil based hydraulic fluids per DIN 51524 |
Engineering Features & Advantages
- Leak-Free Load Holding: The poppet-type seat design provides zero-leakage blocking in the closed direction, preventing actuator drift and load creep in holding circuits.
- Pilot-Controlled Release: Integrated pilot piston enables controlled opening of the check valve when pilot pressure is applied, allowing precise and safe lowering or retraction of loaded actuators.
- Modular Sandwich Construction: Compact NG10 sandwich design mounts directly between directional valve and subplate, minimizing piping, leakage points, and installation footprint.
- Industrial Reliability: Hardened, precision-ground sealing elements and robust housing are engineered for continuous operation under severe industrial conditions and high cycle rates.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth SL series valves and OEM mounting standards, ensuring drop-in interchangeability.
Typical Industrial Applications
The Rexroth SL 10 GA 1-42 pilot-operated check valve is widely deployed in hydraulic systems requiring reliable load holding and controlled motion, including plastic injection molding machines, metallurgical and stamping presses, construction and marine hydraulic equipment, CNC machine tools, and general industrial power units where actuator locking, safety
PRODUCT IMAGES
REXROTH SL 10 GA 1-42 / R900483370 Pilot-Operated Check Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH SL 10 GA 1-42 / R900483370 Pilot-Operated Check Valve. This German-made hydraulic component features a leak-free poppet design, delivering reliable fluid control for heavy-duty industrial systems.