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The RSFE-ABN, RSFE-BBN, RSHE-ABN, RSHE-BBN, RSJE-ABN and RSJE-BBN are high-performance air-controlled pilot operated sequential valves, engineered for precise hydraulic circuit sequencing in industrial and mobile applications. As screw-in cartridge style components, they offer compact installation, easy integration, and reliable operation for load-holding and sequential actuation tasks.
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Balanced Piston/Spool StructureThe valve adopts a balanced piston or spool design that minimizes internal friction and pressure loss, ensuring fast response (10ms for RSFE series) and low internal leakage. This design effectively prevents valve sticking even under high-pressure working conditions, improving the overall stability of the hydraulic system.
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Air-to-Hydraulic Control Ratio (1:20)Driven by air pilot signals, the valves feature a 1:20 air-hydraulic pressure ratio, enabling remote and precise pressure adjustment. The A-type (1/4 NPTF air port) and B-type (50–1500 psi pressure setting range) options meet diverse system control requirements.
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Flow Rate Grading for Versatile Needs
RSFE series: Rated flow of 30 GPM (120 L/min), ideal for small-flow hydraulic circuits with fast response and low leakage.
RSHE series: Rated flow of 60 GPM (240 L/min), suitable for medium-load applications with balanced flow and pressure performance.
RSJE series: Rated flow of 120 GPM (480 L/min), designed for large-flow hydraulic systems, ensuring efficient fluid transfer without excessive pressure drop.
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Durable Sealing SystemEquipped with Buna-N (NBR) seals, the valves deliver excellent compatibility with mineral-based hydraulic oils, and good resistance to wear and temperature. They can operate stably in harsh working environments, extending service life.
Sequential Actuation Control: Automatically triggers the next actuator action when the system pressure reaches the preset value, realizing orderly operation of multi-cylinder or multi-motor systems.
Load Holding: Prevents unintended movement of loads by maintaining system pressure, widely used in lifting platforms, construction machinery, and material handling equipment.
Circuit Protection: Works with other hydraulic components to optimize pressure distribution, avoiding system overload and improving equipment safety.
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These valves are designed to fit standard T-2A cavities, featuring a floating structure for easy installation and maintenance. The external drain port design ensures proper pressure relief, further enhancing the valve's operational reliability.
