Dwyer Instruments SERIES VA-K Catalog Page

Series

VA-K

Variable Area Flowmeter Kits

Interchangeable Flow Tubes and Floats, 150 mm Universal Scales

1-1/4

[31.75]

1/8 NPT

1/2˝ HEX

Flowmeters, Variable Area

The Series VA-K Flowmeter Kits offer an economical means of acquiring diverse flow

measurement capability. The kit includes a completely assembled flowmeter (available with Aluminum or 316 SS end fittings) and three interchangeable 150 mm flow tubes. All flow tubes are supplied with a glass float installed. Spare 316 SS and Tantalum floats are included to extend flow capacities. Series VA-K kits also include a high flow valve cartridge, tripod base, tweezers, pushrod and locking tool for changing floats and flow tubes, correlation charts and plastic carrying case.

Model VA-K1, Aluminum Flowmeter Kit Model VA-K2, 316 SS Flowmeter Kit

Max. Flow Rate (mL/min)*

Flow

Float Material

Tube

Glass

Number

Air

042-15

1.8 to 18.6

112-02

21 to 374

102-05

106 to 3807

044-40

962 to 22536 * Flow rates are given for standard pressure and temperature 70°F (21°C) @ 760 mm Hg.

Water

0.02 to 0.19 .023 to 5.5 2 to 84 15 to 541

316 SS Air

5.8 to 60.6 36 to 814 288 to 7590 –

Water

0.09 to .945

1.1 to 20.4 6 to 617 –

Tantalum Air

– – – 2015 to 62588

Water

– – – 106 to 2001

9-13/16

[249.22]

1-5/8 [41.28] OPEN

SPECIFICATIONS Scales: Universal 150 mm scales with

correlation chart. Accuracy: ±2% FS @ 70°F (21.1°C) and 14.7 psia (1 atm absolute). Repeatability: ±0.25% of scale reading. Turn-down ratio: 10:1; 20:1 with combinations of two floats installed in meter. Maximum Operating Pressure: 200 psig (13.8 bar).

Maximum Operating Temperature:

250°F (121°C).

Mounting: Vertical.

APPLICATIONS

Kits are ideal for flow applications in air and water analysis, film processing, chemical processing, gas chromatography, pharmaceutical, alcohol and tobacco production, pulp and paper, and semiconductor industry.

8-13/16

[223.82]

7/8˝ HEX NUT

1/2 [12.75]

1-1/8 [28.57]

1/8 NPT

1/2 [12.75]

Connection: 1/8˝ female NPT. Flowtube: Borosilicate glass. Float: Glass, 316 SS or tantalum. Float Stops: PTFE. End Fittings: Anodized aluminum or

316 SS.

Front Shield: Polycarbonate. Side Panels: Black, anodized

aluminum. O-rings: Buna-N on aluminum models and fluoroelastomer on stainless steel models. Valve Orifice: Acetal on aluminum models and PCTFE on stainless steel models.