VICKERS PFR2-10-S-3G-/1.90

Refuse haulers are actually one of the listed applications for this valve, so you're in the right spot. It's adjustable and pressure-compensated, which means it actively works to keep flow steady even when system pressure shifts around. Rated up to 60 liters per minute and handles pressures up to 350 bar, so it's built for the kind of demand those trucks put on a hydraulic system. The 3/8" port size is worth confirming against your existing hydraulic connections before you order, but performance-wise it's a solid match for that use case.

Designed for mobile and industrial applications like refuse haulers, this flow control valve should work well.