MS powder coated Sump tank with flow. MS powder coated Measuring tank. Mercury Manometers(Differential). Each line provided with flow control value for setting of different flow rates. Pressure tubes of different pipe lines are connected to common manometer through cocks. Easy to operate and replacement of Venturimeter & Orifice meter. Flow control value at the end of each line assures full running of pipe. Differential manometer of 300 mm length with mercury