High-pressure, variable flow indicators with a graduated flow scale on the outer viewing sleeve and an indicator ring which is magnetically coupled to an internal piston. All utilise the technique of differential pressure across a piston which, as the flow increases, moves the piston against a calibrated spring. Can be installed on any plane.
• Pressures up to 350 bar • Flows up to 360 L/min
• Accuracy ±5% FSD
• Repeatability ±1% FSD
• Relatively insensitive to viscosity changes
• Direct reading
• Oil or water calibrated