Definition of flow meter of demin water
Flow meter demin water is a flowmeter used to measure the flow of water that has gone through the process of removing mineral content. With the loss of this mineral content, the conductivity of water is expected to reach or near zero. This means that anions and cations that are carried in water in the form of calcium minerals, magnesium or others are lost.
Because air demin has a very small conductivity and close to zero, it must be ditreatment itself user process. All equipment passed by demin water should not use materials containing ferrous, because it is easily oxidized that can contaminate demin water. Demin water has corrosive properties therefore use materials such as stainless steel, pvc, hdpe, teflon or those that are not easily oxidized.
Water flow meters for demin water are made of non-metal materials or for beverage processes using food grade materials. The type of material used should be SUS316L or Teflon or others that have food grade classes.
Because demin water has a very small conductivity even close to zero micro siemens, you should not use magnetic flow meters. The use of magnetic flow meters will result in inal readability of flow because conductiveity requirements are not met.
Type of Flow meter for demin water
Use a type of paddle wheel flow meter that has pvc body sensor material, sus316 or polypropylene. Likewise, components in the flowmeter, must use nonmetallic materials such as teflon, polyethelene with shaft stainless steel or carbide.
In addition to the above, it is suitable if using a water flow meter from the type of clamp on ultrasonic flow meter. This type of flowmeter is suitable, because there are no components of the flow sensor that are directly contact with demin water. How to install it by attaching and compressing ultrasonic sensors or transducer flow meters on the outer surface of the pipe.
Because there is no part that is in direct contact with the liquid, the flow meter is safe against corrosive properties and high pressure. Flow meter type clamp on ultrasonic can be applied to all types of materials and the size of pipe diameter from DN15 – DN6000.
For battery rate, ultrasonic flow meters are in the range of 1% – 1.5%, so it is accurate enough to measure the flow of demin water. Ultrasonic flow meters have 4 types of installation and functions, namely portable flow meters, in line, clamp on and insertion. For the type of sensor material or ultrasonic transducer that is usually used is non metal and stainless steel.
Flow meter ultrasonic
Ultrasonic flowmeter is a type of flow meter that works using ultra sound through transducer with clamp on, in line and insertiion installation systems. Ultrasonic flow meters that are widely known are portable types because it is easy to optimize, can be below where, lightweight and compact.
Types of ultrasonic flow meters there are 3, namely inline ultrasonic flow meters, portable flow meters, clamp on flow meters and open channel flow meters The most widely used are clamp on and portable types.
The advantage of using a current meter ultrasonic flow meter type clamp on installation is the way it is installed without cutting the pipe. And because there is no moving sensor part, avoid pressure drop from the flow.
Ultrasonic flow meters clamp on types can be installed on various types of pipe materials and various sizes of pipe diameter. The diameter of the pipe that can be installed ranging from DN 15 to DN600. This type of ultrasonic water meter has an accuracy of 1% for single channel and 0.5% for multi channel.