INDUSTRIAL FLOW METER

VA45

Variable area flowmeter for low pressure gas applications

Glass tube with easy-to-read scale
For use in gas supply lines of furnaces, protective gas or heating systems
Flange: DN15…40 / ½…1½”; also NPT, G, hose connection
-20…+100°C / -4…+212°F; max. 1 barg / 14.5 psig

หมวดหมู่: Flow Meter, Glass Tube, Rotameter

แบรนด์: KROHNE

Overview

The VA45 is a glass tube variable area (VA) flow meter for flow measurement of gases at low operating pressures (<1 barg /<14.5 psig). The device is ideally suited for use in gas supply lines of industrial ovens, forges and furnaces or protective gas and heating systems (with process temperatures up to +100°C / +212°F).

The VA 45 operates without auxiliary power supply. The glass measuring cone, protected by a metal sleeve with a viewing glass, makes it easy to directly read the flow and to observe the medium. The standard version is available with flange, thread or hose connections.

Features

Simple, low-cost measuring principle without auxiliary power
For direct reading of the flow and observation of the medium
Full scale value for gases: 2300…75,000 l/h / 85…2790 SCFH
Maximum measuring error: ±2.5% (acc. to VDI/VDE 3513-2) or ±2% of full scale
Turndown ratio: 10:1

Applications

Machinery and apparatus (OEM industry)

Air supply to furnaces etc.
Dosing of protective gases

Specifications

General information

Product type	Flowmeter
Product family name	VA
Product positioning	For low pressure gas applications
Measurement principle	Variable area float
Measured media	Gases

Operating conditions

Process pressure	max. 1 barg/ 14.50 psig
Process temperature	0…+100°C/ +32…+212°F

Materials

Measuring tube	Borosilicate glass
Gaskets	Ethylene propylene diene monomer (EPDM), Perfluoroelastomer rubber (FFKM), Fluoroelastomer rubber (FPM), Nitrile butadiene rubber (NBR)
Process connection	Austenitic stainless steel (1.4404/316L), Polyvinylidene fluoride (PVDF), Chromised steel

Process connections

Flange connections	EN (1092-1): DN15…40 ASME (B 16.5): ½… 1½”
Thread connections	Female: G½, G¾, G1, G1½ ½ NPT, ¾ NPT, 1 NPT, 1½ NPT
Other connections	Hose: DN15, DN25, DN40