Electromagnetic drive metering pump and other advantages compared to other pumps

Electromagnetically driven metering pumps have only one moving part - the armature shaft. In general, the less moving parts, the more reliable the metering pump works. Metering pump is ideal for low-flow, low-pressure workplaces, and good compensation in the supply voltage fluctuations. What are the advantages of metering pumps with fixed stroke length and varying frequency compared to metering pumps with fixed frequency and varying stroke length? With this correction, the dosing amount per stroke is known. The total dosage can therefore be calculated (dosing = dosing per stroke * frequency). The total dosage is linear with frequency (50% frequency = 50% dosing). Through external pulse or analog control, dosage can be transferred from minimum to maximum in one second. In addition, it is much less costly than motor-driven stroke length adjustment.

Concrete Nails


Nails for concrete are called cement nails. Cement Nail, commonly known as Steel Nail, is a nail, using carbon steel production, material has 45 steel or 60 steel, after wire drawing, annealing, nail, quenching and other processes processed, so the texture is relatively hard. Its function is to nail in some of the harder other nails can not nail on the object, because the material and ordinary nails are very different, is a special nail. The Cement Nail`s hardness is very big, is thick but short, pierces the Chisel ability to be very strong. CATEGORIES: Cement Nails Poles have a sliding rod, ruled, twill, spiral, bamboo, and so on, the general is a straight or sliding pole. According to different classification, cement nails can also be divided into: Black Cement nails, blue cement nails, color cement nails, countersunk head cement nails, K cement nails, t cement nails, galvanized cement nails and so on.

Home Concrete Wall nails nails several ways: 1, with cement nails, as the name implies is designed specifically in the concrete wall or brick wall and other hard medium nail things. 2. However, cement nails are sometimes not so good, if some walls really can not nail cement nails, expansion Bolts or expansion bolts, no matter how hard the wall it can handle. 3. However, when using expansion bolts or expansion bolts, an auxiliary tool is needed, which is the electric drill.
4. The head of the drill corresponds to the type of expansion bolt, so be sure to have a drill.


Straight, twill, spiral, bamboo

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