Japsin Instrumentation
ISO 9001:2008 Certified Company
Kalbadevi, Mumbai, Maharashtra
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Flow Rate Measuring Instruments

We are a leading Exporter of glass tube rotameter, acrylic body rotameter, bypass glass tube rotameter, metal tube rotameter and acrylic tube rotameter from Mumbai, India.

Approx. Rs 3,150 / Piece
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We offer Glass Tube Rotameter.Glass Tube Rotameter are Precision flow measuring instruments designed on the "Variable Area" Rotameter basis using "Tapered Tubes". These instruments are suitable for service with all available fluids including Acids, Alkalies, Corrosive gas and Organic Solvents for Temperature upto 150°C with suitable selection of material.


  • Metering Tubes: Extra Thick chemically Resistant annealed and stress Relieved TAPERED glass.
  • Floats: Suitable for all corrosive or non corrosive liquids / gases, S.S. Teflon, PVC etc.
  • Fittings: End fittings are either screwed or flanged or for hose connection
  • Calibration: Calibration is carried out individually at works using Air and Water at standard condition, with Reliable empirical conversion for other Fluids / Gases

Technical specifications:
  • Metering Tube: Borosilicate Tapered glass
  • Float: S.S 304, S.S.316/Teflon/PVC
  • Packing/Gasket: Neoprene/Teflon/Silicon/Viton
  • End Fitting standard: Aluminium body with Ms. cover with transparent acrylic cleat/ toughed glass
  • Shielding: Glass
  • Scale: White acrylic/Acrylic/Aluminium coated
  • Colour: Blue/Hamertone Grey
  • Press Rating: Upto 150 PSIG
  • Temperature: Upto 150°C
  • Accuracy: + .5 TO + 1% at F.S.

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Approx. Rs 1,350 / Piece
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We offer Acrylic Body Rotameter. These Acrylic Rotameters are precision machined from clear acrylic block and fitted with needle valves stream lined in appearance. They are designed to give maximum accuracy visibility and ruggedness.


  • Floats: Stainless steel, Teflon, PVC or as per requirement. In bigger models guide rods are provided for better stability.
  • Metering Valve: For Accurate flow control precision machined needle type valves are
  • Accuracy: Standard Accuracy of 1.5 to 1% at full Scale. Better accuracy on specific
  • requirement.
  • Fittings: Top / Bottom or Rear as per requirement in S.S. screwed, Nozzle, with Suitable "0" Rings to avoid leakage.
  • Calibrations: Carried out at works individual using air and water at standard condition. Reliable impirical conversion, are used to calibrate for other fluids.
  • Installation: Rotameter are ideal for direct Panel mounting because of their neat modular appearance, online is also possible

Technical Specifications:
  • Metering Body: Acrylic Plastic
  • Wetted Part: SS / Brassi PVC / Teflon
  • Float: SS / Teflon / PVC / P.P.1/4" NPT / BSP / Screwed rear with valve
  • Pipe Connections: Fanged top bottom/rear
  • 0 Ring Standard: Neoprene / Teflon Viton Silicon
  • Scale: Engraved on the body
  • Press Ration: To 100 PSIG Std
  • Rating:  0 Pt higher rating on special application
  • Temperature: Upto 70° C
  • Accuracy: + .5 To + 1% at F.S.

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Approx. Rs 4,950 / Piece
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We offer Bypass Glass Tube Rotameter.



  • Description: As per enclosed catalogue with MS flanges, SS orifice, SS pipes & SS valves
  • Metering glass tube rotameter: By the side
  • Floats: SS
  • End Fittings: 6” MS powder coated Flanged connection
  • Range: 0 to 300 M3/Hr.
  • Applications: For Furnace oil 380 cst
  • Operating temp: Max 100 deg C
  • Operating pressure: Max 10 Bar
  • Make: Ji
  • Accuracy: +/- 2% FS

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Approx. Rs 4,950 / Piece
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We offer Metal Tube Rotameter.



  • Pipe material : SS 304
  • End Fittings : ½” ASA 150 Rf # flanges of SS at Top & bottom connection
  • Range : 0 to 5.400 M3/Hr                                       
  • Application : Oxygen
  • Temp. Max : 100 deg C                                            
  • Pressure Max : 10 Kg/cm2
  • Make : Ji                                                       
  • Accuracy : +/- 2% FS

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Approx. Rs 125 / Piece
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We offer Acrylic Tube Rotameter with control valve.



  • Case: Acrylic block
  • Application: For Fluid as per requirement
  • Range: in ranges of LPM or LPH or M3/Hr or as per requirement
  • Temperature: 40 deg C (max)
  • Pressure: Max. 10 Kg/cm2
  • Description: Precious flow measuring instruments designed on the “Variable Area” Rota meter basis using tapered tubes.
  • Metering Tube: Acrylic tube
  • Control Valve: Provided of SS
  • Float: SS / PVC    
  • End Fittings: Screwed connection (as per requirements) at both side ends of top & bottom
  • Make: Ji
  • Accuracy: +/- 2% FS 

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Japsin Instrumentation

Ramesh Sethi (Director)
40, Picket Road, 2nd Floor, Kalbadevi
Mumbai - 400002
Maharashtra, India
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