DESCRIPTION

FLOWTECH Glass Tube Variable 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 inside the 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.
 
  DESIGN FEATURES  
 
    • Dowel Pin, side plate construction
    • Detachable flow scales
    • Externally adjustable packing glands
    • Connections can be rotated 360 degree at 90 degree
    • Laminated safety glass shielding
    • Scale length of 180-200 mm
 
  PERFORMANCE  
 
Accuracy 
 +/- 2% F.S.D.
Temperature Ratings
 Maximum Operating Temperature rating is 121 o C for Gas services and 93 o C for Liquid services.
Repeatability
0.5 %
Connections
 Flanged OR Screwed OR Triclover Joint OR Hose Nipple
Rangebility
 10:1
Enclosure
 IP 55 OR IP 65 on request
Scale length 180-200 mm
 
  Pressure Ratings  
 
Meter Size Max. Operating Pressure (Kg/Cm2g)
15 25
 20 25
25 15
40 12
50 10
80 07
 
   
  MATERIALS OF CONSTRUCTION  
 
Tube Borosilicate Glass
Float

SS 316, PTFE, others on request

Packings Neoprene, PTFE, Silicon, Viton   
Frame & Cover M.S. OR SS
End Fitting M.S., C.S., SS304, SS316, CF-8M, CF8, C.I. PTFE Lined, SS PTFE Lined, PVC, others on request
 
   
  DIMENTIONAL DETAILS  
   
 
OVERALL DIMENSIONS
Meter Size Model GTR S 22 & Model GTR F 22 Model GTR S 11 Model GTR F 11 All Meters
     
A B C A A D
15 475 450 100 400 500 90
20 475 450 100 400 500 90
25 475 450 100 400 500 90
40 475 450 90 400 500 90
50 475 450 90 400 500 90
80 475 450 90 400 500 90
 
   
  CAPACITY TABLE  
 
CAPACITY TABLE – GLASS TUBE ROTAMETER
Meter Size Tube Size Water at Amb. Temp. in LPH Air at 20 o  C & 760 Torr  in SCFM Pressure Drop in
mm WC
  Minimum Maximum Minimum Maximum  
15 1 4 40 0.90 9.00 140
2 6 60 0.13 1.30
3 10 100 0.19 3.20
20 4 16 160 0.32 5.00 360
5 25 250 0.50 7.60
6 40 400 0.76 -
7 60 600 -  
25 8 60 600 1.25 12.50 650
9 100 1000 1.90 19.00
10 160 1600 - -
11 250 2500 - -
40 12 160 1600 3.10 31.00 950
13 300 3000 5.00 50.00
14 400 4000 - -
50 15 400 4000 7.60 76.00 550
950
16 600 6000 11.30 113.00
17 1000 10000 - -
80 18 1000 10000 19.00 190.00 750
900
19 1600 16000 - -
20 2500 25000 - -
 
   
   
 
 
Rotameters Manufacturers in India | Float Board Type Level Indicator | Magnetic Level Switch Manufacturer | Full View / Double Window Sight Flow Indicator
Manometer Manufacturer | Orifice Plate Flange Assembly Manufacturer | Reflex Transparent Level Gauge | Electromagnetic Flow Meter Manufacturer
Glass Tube Rotameters | Fuel Flow Meter
Welcome to Flowtech Instruments Services.
900/2/B, GIDC, Makarpura,Vadodara - 390010, Gujarat ( India )