P. S. Instruments Thane, Maharashtra

We are the leading manufacturer, exporter and supplier of Purge Glass Tube Rotameters. Purge Glass Tube Rotameters are ideal for laboratory or instrumentation applications. Mounting can be panel or by optional tripoid base. Available in complete acrylic body or stainless steel body with glass metering tube. Purge Rotameters are economical and suitable for low flow rate indication for fluids. These are available in all standard material of construction and can be offered with a flow regulating needle valve to give a constant flow irrespective of the supply or upstream pressure.

Glass Tube Rotameter is basically a Variable Area. Principle The differential pressure across the annulus area is constant and the flow rate is measured as a function of the annulus area. This area is displayed as the position of a “Float”. These rota meters are useful for measuring flow of air, common gases, water, alkalies, oil & organic chemicals. Our offered range of glass meters is appreciated for its features such as high tensile strength, dimensional accuracy and compact design.Glass Tube Rotameter Area Flow Meters (Rotameters) are intended for general in line and By-Pass metering applications (i.e. for Gas & Liquid) where operating conditions are with the limitations of Glass metering tubes. These are the principle of Variable Area. The float moves freely up and down tapered borosilicate glass with fluid flow from bottom to top. The float takes up a position where buoyancy forces and the float weight are balanced in proportion to flow rate. The Vertical position of the float as indicated by scale is the measure of the instantaneous flow rate.

Size : 15 NB to 80 NB

We are the leading manufacturer, exporter and supplier of Averaging Pitot Tube (Annubar). P.S Instruments Averaging pitot tubes use multiple sensing ports to continually average the flow profile and generate a differential pressure that represents the mean flow rate across the pipeline. Averaging Pitot Tubes offer an accurate measurement and low permanent pressure loss The Pitot tube produces a Differential pressure (DP) signal proportional to the square of the flow rate in accordance with Bernoulli's theorem. This signal has two components, the high pressure (HP) and the low pressure (LP). DP= HP-LP When the fluid impacts the sensor, it creates a high pressure zone, greater than pipe static pressure, in front of the sensor. As the fluid moves past the sensor, it accelerates and a low pressure zone is created to the sides and rear of the senor. Multiple sensing ports are positioned in the high and low pressure zones and an averaged differential pressure is produced. The DP increases proportionally to the square of the velocity of the fluid. By averaging the flow velocity across the pipe, averaging pitot tubes are more tolerant of errors bends and valves upstream of the meter

Acrylic Body Rotameters are useful in measuring rate flow of liquids and gases. They are available in glass , plastic and metal. We offer acrylic body rotameters which are highest in accuracy.“P.S” make high accuracy, clear acrylic plastic body rotameter. Main advantage is we directly use tapered tube directly in the acrylic plastic body itself.One more advantage is acrylic plastic is highly stable chemical resistant and gives glass like clearness which enables clear visualization of flow. In Acrylic Body rotameter, Flow range is calibrated, engraved and coloured with black on body itself for long lasting durability. “P.S." Made Acrylic Body Tube Variable Area Flow Meters (Rotameters) are intended for general in line metering applications (i.e. for Gas & Liquid) where operating conditions are with the limitations of Acrylic Body metering tubes. These are the principle of Variable Area. The float moves freely up and down tapered Acrylic body Tube with fluid flow from bottom to top.