Certain hydraulic flow monitoring applications require special attention due to factors such as chemicals present in the system. A case in point can be found in the aviation sector, where hydraulic ground support equipment (GSE) typically utilises phosphate ester-based fluids. If you’re tasked with monitoring or troubleshooting a hydraulic system of this type, you’ll almost certainly require an in-line flow indicator that is compatible with phosphate ester. The good news? Webtec has just the thing: its new robust and easy-to-use FI 750/1500 series flow indicator.

We’ve dedicated our new FI750/1500 series to the continuous or intermittent monitoring of flow in hydraulic systems that utilise phosphate ester-based fluids. Offering the flow and performance of our existing FI series, you’ll find the new indicators fully meet the chemical resistance requirements of monitoring hydraulic flow in GSE, eradicating the risk of material incompatibility.

Any aviation OEM or service provider adopting our FI750/1500 will discover a reliable solution that’s tailored to more aggressive fluid environments without incurring unnecessary cost or complexity. This approach is essential in markets such as aviation, where reducing cost is critical but without any compromise in performance or quality.

So, what capability does the FI750/1500 series offer? Well, with a working pressure up to 6,000 psi (420 bar), the flow indicators will provide you with reliable and precise visual monitoring where electrical power is not available or permitted, such as remote locations or power-restricted zones. That’s because FI750/1500 indicators are mechanically operated with no requirement for electricity. 

The large 2½” (63 mm) dual-scale dial (US gpm and L/min) delivers rapid, at-a-glance readings which simplify and accelerate the commissioning, field service and maintenance of GSE, as well as some specialist industrial hydraulic systems that use phosphate ester-based fluids. You’ll also be pleased to learn that no menu navigation or programming is necessary.

If you need a rugged and contamination-resistant hydraulic flow indicator optimised for modern, high-capacity GSE, the FI750/1500 series will prove ideal. Direct-acting functionality minimises moving parts, resists contamination and extends your service intervals, while high-durability EPDM seals support use in conditions extending from sub-zero to scorching heat. Our FI750/1500 series is a true all-environment solution.

Connection is fast and straightforward into pressure or return lines, with standard porting options facilitating plug and play installation. Developed for unidirectional flow up to 66 US gpm (250 L/min), our FI750/1500 series can operate in horizontal or vertical mounting orientations.


Find out more,
Visit our FI750 product page
Visit our FI1500 product page

Posted by Webtec

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