SERIES GY • Double Cylinder Wall Flow Indicators
Series GY flow indicators utilize a double-wall construction and are used to indicate flow or clarity of highly corrosive or ultra-pure liquids compatible with Pyrex glass. They cannot be used with hydrofluoric acid or sodium hydroxide which will etch the Pyrex cylinder wall. They are available with PVC, or natural polypropylene ends in all sizes, and PTFE ends in 1/2", 3/4" and 1" NPT. FKM seals are standard. Pipe sizes are 1/2" through 3" NPT. BSP (British Standard Pipe) threads are also available. Optional fluttering streamers are also offered. Please consult page 4 for pressure and temperature specifications.