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EVOTEK HYDRAULIC TECHNOLOGY (SHANGHAI) CO., LTD.

SNIEC N3.750

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EFRE Return Filters Series

Product Category: Hydraulic drive, control and process control engineering

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Product Introduction

This composite return-line filter suits hydraulic return-line filtration, with G 1¼" and SAE16 ports. Rated flow reaches 130 l/min, air flow up to 1,350 l/min, max operating pressure 10 bar, and element pressure differential 10 bar. The bypass valve opens at ∆P = 1.7 bar + 0.3 bar, ensuring safe return flow when the element clogs. The upper housing is aluminum alloy; the lower housing is reinforced nylon, combining strength with light weight. Seals are available in NBR or FKM, rated from -10°C to 100°C. The filter suits mineral oils, lubricating oils, fire-resistant fluids, and rapidly biodegradable media. For water-containing media, please consult our technical department. It is tested to ISO2941, ISO2942, ISO2943, ISO3723, ISO3724, ISO3968, and ISO16889, covering collapse resistance, fabrication integrity, material compatibility, axial load, flow fatigue, pressure drop vs. flow, and multi-pass filtration performance. Compact and reliable, it is ideal for hydraulic systems requiring high return-line cleanliness.

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