Introduction
We are glad that you have decided to use our variable area flow meters and high-precision control
valves. Our instruments will provide you with high-quality long-lived products.
This manual contains important information for commissioning and/or designing equipment. Please
contact your distribution partner if anything is not clear.
We are committed to the continual improvement of our products and documentation. Your
experience from everyday use can assist us with this. We welcome your comments and criticisms.
We have taken great care in compiling this manual. However, we cannot accept responsibility for
possible errors.
Service and quality
We are continually improving the quality and provision of our products and services. In the end,
whether the right product was selected only becomes apparent once the product is in use.
Therefore we make every effort not just to preach but also to live by top quality and service.
Warranty
The warranty for the products described in this manual is limited to defects in material and
workmanship. Warranty does in no case exceed product replacement free of charge. All claims are
null and void in the case of improper use:
Use outside the operating limits
Damage due to water hammer
Corrosion damage
Mechanical damage in general