bids are invited for glass tube rotameter - glass tube rotameter with following specification : wetted parts: all wetted parts will be of ss316 measuring range : 12 – 120 lpm, float: ss316, end fittings: ss316, scale: pvc engraved on scale fluid : air, operating temperature: 50deg c, operating pressure : 7 kg/ cm2 inlet ( bottom) , outlet ( top) over all length : 25.4 cm, dimension 22 cm height+ 3.4 cm connection(1.7 cm on op and 1.7 cm at bottom) x 8.7 cm depth, casing : m.s. powder coated & front and back covered with glass/acrylic type: direct line mounted tube : borosilicate glass packing : teflon, accuracy:+/- 2 % of full scale reading, test pressure : 10.5 kg/cm2 end connection: 1/2 npt(f) thread ss316 necessary clamping arrangement for panel mounting and necessary nuts and bolts for same shall be supplied. total quantity : 1