Polyester Draw Texturing Yarn Cationic
Polyester Draw Texturing Yarn Cationic is a new type of polyester product which is spun by dimethyl isophthalate with SO3Na into polyester. Its appearance is no different from that of ordinary polyester yarn. However, the ionic modified polyester filament not only improves the color absorption of the fiber greatly, but also reduces the crystallinity and makes the dye molecules permeable easily. The fibers are easy to dye, the absorptivity is improved, and the water-absorbing is also improved. This kind of fibers can not only ensure cationic dyeability, but also increase the micropore of the fibers, and improve the dyeing rate, air permeability and moisture absorption of the fibers, the fabrics can be soft, air permeable, comfortable, antistatic and dyeable at room temperature and atmospheric pressure. Fabrics made of cationic yarn have the following characteristics when dyed with cationic dyestuff:
1. Bright tone, good deep dyeing;
2. High water-absorbing;
3. Good fastness to sunlight and fading;
4. Good stability in high temperature dyeing bath;
5. Dye stability is high when pH value changes in dyeing bath.
Texture Drawing,Polyester Draw Textured Yarn,Polyester Draw Texturing Yarn Cationic,Draw Textured Polyester Yarn YIBIN MERRY TRADING CO. LTD. , https://www.cnmerry.com
Electromagnetic flowmeter problems in the village, pay attention to the problem of negative pressure on the memory. When measuring the media has a certain degree of corrosivity, we must use PTFE memory materials. However, electromagnetic flowmeters using PTFE materials cannot withstand negative pressure electromagnetic flowmeters. There are two ways to solve the problem:
First, the original vent valve was changed to a one-way valve (non-return valve). When there was a slight negative pressure in the pipe, the non-return valve automatically opened and sucked air from the atmosphere, thus ensuring safety.
Second, the use of memory with a skeleton, the disadvantage is to increase investment costs.
Electromagnetic Flowmeter 
Electromagnetic flowmeter detects the advantages of chilled water
Electromagnetic flowmeters measure the advantages of chilled water: for example: no pressure loss, high accuracy, and good stability. However, due to the characteristics of chilled water, some problems should be paid attention to in the use of electromagnetic flowmeters.