(950) Liquid & Air Variable Area Flowmeters

VAF83 & VAF120 Series Variable Area Flow Meters are suitable for measuring the instantaneous flow rate of virtually any process liquid or gas. The principle of operation of the variable area flow meter is simple: the height attained by the float in its tapered flow tube is directly related to the flow rate which is exhibited by a calibrated scale. Readings should always be taken from the centre of the ball.

  • Low Flow Rates From 2-20cc/min (Air)
  • Direct Reading of Instantaneous Flow Rates
  • Easy To Read Scale
  • 56mm or 93mm Tube Lengths
  • Minimal Maintenance
  • Long Service Life

Typical applications include gas flow control, dosing systems, purge metering, leak detection, blending systems & analytical instrumentation.

Standard Ranges VAF 83 Series (20C at 1013mb abs)

AIR:   2-20, 5-50, 10-100, 25-250, 50-500 cc/min    0.1-1.0,  0.2-2.5,  0.5-5.0,  1-10,  2-10 L/min

WATER: 5-50, 10-100,  25-250,  50-500 cc/min

Standard Ranges VAF 120 Series (20C at 1013 mb abs)

AIR:    25-250, 50-500, 100-1000 cc/min     0.5-5.0,  1-10,  2.5-25,  4-40 L/min

WATER: 5-50, 10-100,  25-250,  60-600, 100-1000 cc/min

Product Details

Model VAF83 Series & VAF120 Series (Non Valved Design)
Sizes Mounting Centres 83mm or 120mm
Chassis Brush Finished Stainless Steel
Process Connections Rear Facing 1/8" NPT Female (1/8" BSPP Female Optional)
End Blocks Stainless Steel (Nickel Plated Brass Optional)
Cover Polycarbonate
Seals Viton (Nitrile Optional)
Measuring Tube & Scale Borosilicate Glass With Permanently Fired Black Scale
Ball Floats Black Glass, Stainless Steel, Ruby, Tungsten or Ceramic
Maximum Working Pressure 20 Bar (Liquid & Gas)
Maximum Working Temperature 60C Nitrile Seals & 100C Viton Seals
Accuracy +/- 3% For Calibrated Scales
Weight VAF83 - 170 Grams, VAF120 - 225 Grams
Options Valved Design, Rear of Panel Mounting Kit, Alarm Function For Certain Flow Rates

Call us on 0044 (0)1233 730999 for more information
on this product and to order

Variable Area Flowmeter
Variable Area Flowmeter 

CONTACT US

Ashford Instrumentation Ltd
Unit 3 Fairview Industrial Park
Hamstreet Road
Ruckinge
Kent
United Kingdom
TN26 2PL

Tel: 0044 (0)1233 730999
Fax: 0044 (0)1233 731133
sales@ashfordinstrumentation.com