Magnetic flap level gauge is a liquid level measuring instrument,also known as magnetic flap level gauge,magnetic column level gauge.It is widely used in the measurement and control of liquid level in the production process of petroleum,chemical,shipping,food and other industries.However,the application conditions of different industries,even different enterprises in the same industry are quite different,so it is necessary to select the corresponding type of magnetic flap level gauge according to the actual working conditions to match the working conditions.In order to better meet the needs of liquid level measurement,users need to fully communicate their own working conditions and actual needs with the manufacturer,and select the correct type.
The physical and chemical properties(such as corrosivity)of the measuring medium have a great influence on the magnetic flap level gauge.Different medium properties directly determine the type of magnetic flap level gauge.Therefore,if you do not know the properties of the measured medium,you can choose the magnetic flap level gauge at will,which will not only affect the reliable measurement of the magnetic flap level gauge,but also directly affect the service life of the magnetic flap level gauge,and even the magnetic flap level gauge can not be used for measurement at all.
Whether there is explosion hazard in the field environment of the instrument,working pressure and temperature,installation conditions and the speed of liquid level change have great influence on the selection of magnetic turnover level gauge.If it is used in the place with explosion risk,it is generally necessary to install remote magnetic turnover level gauge with explosion-proof magnetic switch.There are two types of explosion-proof types:intrinsically safe and flameproof.If the instrument is installed in the dust or wet places,it is necessary to select the magnetic flap level gauge with higher protection level.
The measuring range is the center distance between the upper and lower flanges of the liquid level to be measured.Measuring range is one of the key factors when measuring the height of liquid level with magnetic flap level gauge.If the range error is large,it will directly affect the measurement effect.When determining the range of the magnetic flap level gauge,it is generally necessary to select the corresponding size of the magnetic flap level gauge according to the height of the tank to be measured.If the specific range cannot be confirmed,the installation position may need to be adjusted to meet the working conditions during construction.
The installation methods of magnetic flap level gauge are mainly side mounted and top mounted.Side mounting is one of the most commonly used installation methods on tanks.However,in the case of underground storage tanks,in order to facilitate installation and observation,it is necessary to select the top mounted magnetic flap level gauge.
The size of flange generally refers to the size corresponding to the installation interface between the flange and the tank.The conventional installation dimensions include DN20,DN25,Dn40,DN50,DN80,etc.of course,it can also be customized according to the connection mode of the tank.
The normal materials of magnetic flap level gauge include 304 stainless steel,316L stainless steel,PP material,PVC material,etc.in case of strong corrosive measurement medium,304 or 316L products with PTFE lining and F46 lining as base material must be selected.
There are many different types of products,such as top mounted type,side mounted type,with remote signal output,vacuum jacket insulation type,steam jacket insulation type,electric heating insulation type,anti-corrosion type and so on.
If we need not only on-site observation,but also remote observation and control,we need to install remote signal device,configure 4-20mA remote transmission transmitter,whether it needs to be equipped with upper limit alarm switch and the specific number.In the winter of northern China or when there are frequent low-temperature conditions on the measurement site,we need to choose thermal insulation products.There are three main types of thermal insulation products:vacuum jacket insulation,steam jacket insulation and electric heating insulation.The installation of electric heating mode is relatively flexible,and the steam jacket insulation type needs to be equipped with corresponding heating steam.
The magnetic flap level gauge is suitable for installation on the side or top of various towers,tanks,tanks,spherical vessels and boilers,and is used for liquid measurement of various media.The product protection grade is IP65,IP66/IP67,which exceeds the requirements of national standard IP54.It is highly sealed and leak proof.Because the liquid medium is completely isolated from the indicator,it is safe and reliable to measure the liquid level.The measurement range of the product is large,and there is no blind area in the whole process of measurement,and the liquid level or boundary position in the container can be clearly and intuitively displayed.Equipped with magnetic switch and liquid level remote transmitter,the upper and lower limit alarm and control of liquid level can be realized,and the signal can be converted into two-wire 4-20mA standard signal to realize remote detection,indication,recording and control.