Dosing metering pump working principle
Dosing metering pump motor driven by the worm and the worm through the worm gear so that the spindle and the eccentric rotation for the rotation, driven by the eccentric tappet in the guide cylinder for reciprocating motion. Together with the diaphragm, the vacuum in the pump cavity is gradually formed by the action of the one-way valve, the suction valve is opened and liquid is sucked in;
When the diaphragm moves forward to the dead point, the suction valve is closed and the discharge valve is opened. The liquid is discharged by the diaphragm. In the pump by adjusting the stroke of a reciprocating work to form a continuous pressure, the amount of liquid discharge.
Polypropylene (PP) is a thermoplastic polymer that is widely used in various applications due to its excellent properties such as high stiffness, chemical resistance, and low density. It is a member of the polyolefin family, which also includes polyethylene (PE). PP is produced through the polymerization of propylene monomer.
PP is a versatile material that can be processed using a variety of techniques such as injection molding, blow molding, extrusion, and thermoforming. It is commonly used in the packaging industry for the production of bottles, containers, and films due to its excellent barrier properties against moisture, gases, and chemicals. PP is also used in the automotive industry for the production of interior and exterior parts, as well as in the construction industry for the production of pipes, fittings, and insulation materials.
One of the key advantages of PP is its high stiffness, which makes it ideal for applications that require structural integrity and dimensional stability. PP also has a low density, which makes it lightweight and easy to handle. Additionally, PP is resistant to most chemicals and can withstand exposure to acids, bases, and solvents.
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