Most technicians and water management companies make the mistake of selecting a liquid flow meter based on cost alone. Many parameters influence the type of flow meter for a specific application. As such, it is vital to consider various factors such as conditions of use, installation cost, technical knowhow, maintenance and many more.
In this blog post, we look at six factors that should be part and parcel of your selection criteria.
- Installation Cost
Operating costs are a vital element of the price of a flow meter. For instance, an ordinary turbine may have low purchase and installation costs. However, it is necessary to consider its actual cost over a specific duration. The production downtime affects its operating costs.
Non-intrusive solid flow meters may have a high initial purchase cost. Nevertheless, it is a viable option for long-term use. Some plumbers recommend incorporating an affordable flow meter if your product has a short design life.
- Operating Parameters
Factors such as flow rate, accuracy, line pressure, temperature and type of fluids affect the efficiency of a water treatment project. Ensure that the liquid is chemically compatible with various components of your flow meter including bearings, O-ring, gears, ceramic magnets, a rotor, and a Pelton wheel. Check them individually to determine whether you need to replace your liquid flow meter.
Usually, liquid flow meters offer specific technological solutions. Compare different technologies to match them with their operating mechanisms and usability. Coriolis, electromagnetic, thermal flow and ultrasonic techniques are appropriate for low fluid flow rates. A Coriolis flow meter offers better accuracy at a high cost while an electromagnetic flow meter accuracy depends on the conductivity of a particular fluid.
- Head Loss
Head loss occurs when water flows through flumes, flow meters, and pipes. It reduces the area of land ideal for water treatment. Generally, a large meter that can accurately measure low fluid velocities is recommended. Mechanical metes such as orifice meter and differential head meters dramatically increase head loss compared to magnetic or ultrasonic meters.
- Maintenance Costs
If your installed flow meter is inaccessible, it could lead to high maintenance costs. Cleaning and maintaining a hidden meter is tricky. Some flow meters are best suited for water treatment plants. The prevailing water conditions determine the number of routine visits necessary. Excessive foreign matter damages most flow meters.
- Sediment and Silt
Silt causes extensive damage to all irrigation flow meters. If it accumulates at a particular spot, it alters your liquid flow meter’s cross-sectional area, therefore, causing false flow measurements. It is prudent to liaise with the manufacturer of your flow meter whether silt and sediments can adversely affect its performance.
Are you interested in a liquid flow meter? Call Intek, Inc. at 888-569-3569 to speak with an expert.