主要特点：

Variable area flow meter model E is made from clear acrylic. It is available in single-tube and multi-tube versions. Model E is equipped with a flow adjustment valve and is also available in customized designs.

Features

Acrylic body

Flow adjusting valve

Several flow ranges

Clear， easy to read scale

Typical applications

Water- and air purgings

Gas measurements

Liquid measurements

CO2-control in greenhouses

Special constructions

Scale for alternative liquids and gases

Special scale markings

Inductive low and/or high flow alarm

Thread adapters

Multi-tube version

Viton® or EPDM seals