Electromagnetic diaphragm metering pump is a type of metering pump, metering pump is a special volumetric pump can be measured fluid being delivered. It is generally composed of the control section, the drive section, the transmission section and the overcurrent section. The difference between the electromagnetic diaphragm metering pump and other metering pumps is mainly the driving section.
Electromagnetic diaphragm metering pump is a metering pump driven by electromagnet and designed for conveying low pressure and low pressure pipeline liquid. It is popular in the industry due to its simple structure, low energy consumption, accurate measurement and easy adjustment The design principle of "simple and practical", but its disadvantage is that the measurement of small flow (usually 90L / h below), the pipeline pressure is relatively low, which in some ways limits its industrial applications.
The world's first electromagnetic diaphragm metering pump was designed and manufactured by the U.S. company Milton Bar in 1985, and several other foreign brands have since been manufactured, either domestically or domestically, and the quality is still relatively reliable. In 1997, the first truly domestic electromagnetic diaphragm metering pump with independent intellectual property rights was produced by Beijing Ark Technology Co., Ltd. and thus broke the market monopoly by foreign brands all the time.
Electromagnetic diaphragm metering pump in the quality of the main performance in the following areas:
1, the diaphragm: As the metering pump is generally delivered corrosive liquids, so for direct and liquid contact with the diaphragm has a high anti-corrosion requirements.
2, the pump head: pump head is the over-current part of the fluid being measured, its quality is generally good or bad in the performance of sealing, corrosion resistance, structural stability.
3, the circuit board: circuit board generally does not exist the problem of process design, but the digital circuit and the analog circuit, the main quality performance in the tightness, because the circuit board can not enter the water vapor.
Sack gabion is
cylindrical basket made of 8x10 double twisted steel woven wire mesh,
with mechanical characteristics higher than the ones suggested from EN
10223-3. It's filled with stones at the project site to form flexible
and permeable structures used for emergency and river training works
where local conditions require fast installation or where the water does
not allow for easy access to the site and where underwater installation
is necessary.
Sack gabions are
supplied with steel reinforcing wires inserted during the manufacturing
process to facilitate closing during installation. The wire used for
the manufacture of gabion shall have a tensile strength between 3
80-550N/mm2 exceeding, in order to increase the tensile resistance of
the finished products, what is suggested from EN10223-3. Wire tolerances
are in accordance with EN 10218. Elongation shall not be less than 10%,
according to EN 10223-3. Test must be carried out on a sample at least
25 cm long. Meantime the adhesion of the zinc coating to the wire shall
be such that, when the wire is wrapped six turns around a mandrel having
four times the diameter of the wire, it does not flake or crack when
rubbing it with the bare fingers.
Sack Gabion Specification
Surface treatment: electro galvanized or hot dipped galvanizedSack Gabion,Wire Mesh Sack Gabion,Coated Sack Gabion Box,Pvc Coating Sack Gabion
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