Dwyer DR4 Glass Flowmeters offer a simplified solution to the problem of fluid flow indication at higher capacity levels. Flowmeters have a direct reading scale for air or water and are designed to withstand even the harshest industrial applications. Permanently fused ceramic scale has integral float guides for optimum float performance. Reflective plastic background and 1.5 X magnification lens reduces eye fatigue and allows for more accurate readings. Units include a safety blow-out back panel for additional protection.
Service : Compatible gases and liquids.
Wetted Materials : Flowtube: Borosilicate glass; Float: 316 stainless steel; Float Stops: PTFE; End Fittings: Brass or 316 stainless steel; O-rings: Buna-N on brass skus and Fluoroelastomer on stainless steel skus.
Temperature Limits : 250°F (121°C).
Pressure Limits : 200 psig (13.8 bar).
Accuracy : ±10% FS @ 70°F (21.1°C) and 14.7 psia (1 atm absolute).
Repeatability : ±0.25% of scale reading.
Scale : Direct reading 127 mm scales for air or water.
Turn-down Ratio : 10:1.Connection:3/8″ female NPT.
Mounting : Vertical.
Valve : 6-turn needle (standard on skus with valve).