• Veksler Engineering

Glass Tube Rotameters

Veksler Engineering is a reputed manufacturer of rotameters, orifice plate assemblies, manometers, level gauges, level indicators, level switches and electronic instruments. The company caters to all industries such as power, chemicals, pharmaceuticals, petrochemicals, sugar, distilleries, WTP/ETP and other process industries all over India and abroad. The company offers Glass Tube Rotameters, Model Veksler GTR-19. These consist of a tapered glass tube mounted vertically in a frame with the small diameter at the bottom and large end up. The tube contains a free moving float that rests on the stopper at the base of the tube. When the liquid flows, the float rises until its weight is balanced by the up thrust of the fluid and the float reaches a position of equilibrium. At this position it indicates the instantaneous rate of flow. The flow rate can be read from the adjacent scale. The pressure drop across the float is equal to its weight divided by its maximum cross-sectional area in the horizontal plane. Both in orifice type meter and in the rotameter, the pressure drop arises from the conversion of pressure energy to kinetic energy and from the frictional losses. Thus rotameter may be considered as an orifice meter with a variable aperture and the formula derived for the orifice meter is applicable here with only minor changes. Design features: accuracy – ±2% of full scale; overall length of 500 mm in flanged versions; end connections can be rotated through 360° connection orientation, top and bottom, rear, bottom and rear, rear and top; and tube can be changed without disconnecting the meter from the line.