Glass Tube Rotameter
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Glass Tube Rotameter is a Variable Area Flow Meter. A rotameter consists of a tapered tube, typically made of glass, with a 'float' made of SS or PTFE. The differentila pressure across the annulus area is constant. The float moves through the tapered tube up and down with respect to fluid flow. The vertical position of the float as indicated by scale is the measure of the instantaneous flow rate.


Specifications :

Material of Construction : CS / SS 304 / 316 / PTFE
Float : SS 316 / SS 304 / PTFE
Tube : Glass Borosilicate
Packing : PTFE / VITON / Silicon / Neoprene
Enclosure : SS Buffed / MS Powder Coated / FRP
Line Size from 15 NB to 80NB
Ranges between 2.0 LPH to 2SQ00LPH
ace-To-Face Distance : 500mm
Accuracy : +/- 2% of Full Scale
Measuring Span : 1:10
Scale : Acrylic / Aluminum / SS

Various Features :

Heavy Duty Design with Maximum Visibility
Two Tone Powder Coated Excellent Finish
No Threads in Body, Avoids Corrosion
Easy to Maintain and Replace
Suitable for on Line Installation
Single Piece (Joint-less) PTFE/ PFA/ PP cladded end connections

Optional Features :

Two-Wire Transmitter
TANSA has developed '2- Wire transmitter' for Glass Tube Rotameter. It can provide local indication along with 4-20 mA transmitter output which can be connected to PLC / DCS for controlling purpose. Transmitter is mounted on the glass tube while retaining visibility and the present local indication by the float and the scale. Transmitter output is two wire loop powered.

Two-Wire Transmitter
TANSA has developed '2- Wire transmitter' for Glass Tube Rotameter. It can provide local indication along with 4-20 mA transmitter output which can be connected to PLC / DCS for controlling purpose. Transmitter is mounted on the glass tube while retaining visibility and the present local indication by the float and the scale. Transmitter output is two wire loop powered.

NB Model No. With PTFE Float (LPH) With SS 316 Float (LPH) Max Pressure Drop in mmwc Test Pressure
15 20 25 40 50 80
            GTR 01 2 - 20 3 - 30 140 15
            GTR 02 3 - 30 6 - 60
            GTR 03 4 - 40 10 - 100
            GTR 04 6 - 60 20 - 200 350 15
            GTR 05 8 - 80 30 - 300
            GTR 06 12 - 120 40 - 400
            GTR 07 18 - 180 60 - 600
            GTR 08 20 - 200 80 - 800 600 12
            GTR 09 40 - 400 100 - 1000
            GTR 10 50 - 500 150 - 1500
            GTR 11 80 - 800 250 - 2500
            GTR 12 90 - 900 300 - 3000 900 9
            GTR 13 100 - 1000 350 - 3500
            GTR 14 150 - 1500 400 - 4000
            GTR 15 200 - 2000 600 - 6000 900 7
            GTR 16 250 - 2500 700 - 7000
            GTR 17 400 - 4000 1000 - 10000
            GTR 18 500 - 5000 1500 - 5000 900 5
            GTR 19 600 - 6000 2000 - 20000
            GTR 20 800 - 8000 2500 - 25000

PTFE - Single PC (No Joint) Clading 100% Spark Proof

Float with PTFE Ring avoids glass to metal contact and minimizes possibility of Glass Tube breakage

Data Required for Offer :

• Tag No.
• Material of Comstruction of Wetted parts
• Type of connection
• Flange Size/Rating
• Fluid
• Fluid Density / Sp. Gravity
• Viscosity at Operating Conditions
• Operating Pressure
• Operating Temperature
• Measuring Range