Silk is the best textile material in the world. It is light and cool, moisture absorbing, moisturizing and heat resistant, has certain elasticity, feels full, full and smooth, and has a straight drape. However, all kinds of silk fabrics on the market dazzle everyone, and Golden Sun fabric experts teach you a few tricks to identify the good or bad of silk. 1. Fold: The fabric is pinched by hand and then released. The silk product has good elasticity and is basically free of creases, while the rayon fabric has obvious creases and it is difficult to quickly restore the original shape. 2. Touch: Silk feels like a handle, but chemical fiber does not have this feeling. Although rayon will feel smooth and soft, it is not crisp. 3. Pulling: Pull out a few yarns, wet a part with water and pull it off. If it is broken from the wet place, it is rayon fabric, and the broken head is a silky piece with different lengths. 4. Grab (grinding): Rubbing two layers of fabrics together will produce “silk†or “squeakyâ€, while other raw materials are not. 5. Combustion: Some parts of the yarn are burned, the silk can't see the open flame, the smell of burning hair, the black particles, can be crushed by hand, the silk is fired by the fire, the plastic smell, the fire is extinguished and the hard is left. Glue.
Butterfly valves are commonly used in piping systems to control and regulate flow and speed.
The use of butterfly valve is also relatively simple, easy to operate. And butterfly valve is widely used in all walks of life, is an important control fluid system equipment.
, for air conditioning system: A butterfly valve can control the flow of air conditioning pump and piping system to adjust the temperature of the air conditioning system, so that the air conditioning system can work more efficiently.
2, for water treatment: butterfly valve can be used for water treatment process, can effectively control and adjust the flow of water pipe, carefully adjust the appropriate quality of water.
3, used for power system: butterfly valve can also be used for power system, can effectively control and adjust the flow of water and pressure in the power system, to ensure the normal operation of the power system.
4, used for heating system: butterfly valve can also be used for heating system, can control the flow of hot water piping system and adjust the temperature of the heating system, in order to meet the temperature requirements of the house.
In general, the use of butterfly valves is very wide, from air conditioning systems to water treatment, from power systems to heating systems, a variety of industries can benefit from the use of butterfly valves. Moreover, butterfly valve structure is simple, easy to maintain, for enterprises is also an affordable choice.
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