Glass fiber Construction Insulation Materials
The dry method insulation blanket is made of microfiber with a diameter of 3-5um,which is producing by a centrifugemethod through unique delivery condenser. It has soft hand feeling, excellent resilience, chemical stability, strong heat resistance and convenient construction. All these merits contribute this material to the top choice for new environmentally friendly building insulation and other sound insulation applications.
We manufacturing and marketing of environmental super fine fiberglass products which are formaldehyde-free,no itchy and tasteless, with good performance in heating insulation and soundproofing, low thermal conductivity, lightweight easy for installation.The main products are super fine glass wool and vacuum insulation panel, Glassfiber cryogenic insulation paper ,Glassfiber Thermal Insulation Panel,Construction fiberglass insulation building insulation fireproof glass wool Microfiber glass Vacuum Insulation Panel Microfiber glass ,which have SGS, UL, ASTM, RoSH and REACH system certifications. We have gained good reputation among customers from home or abroad because of our high quality products and perfect service.
Glass fiber Construction & Electric appliance Insulation Materials
Glass Fiber Construction Insulation Materials,Glass Cryogenic Insulation Materials,Spraying Wool,Inorganic Spraying Fiberglass,Glass Microfiber Hebei Fangyu Trade Co., Ltd. , https://www.fangyu-filtermedia.com
Glass fiber Construction Insulation Materials
The fiber has small diameter, uniform length, pure and less slag, white and soft, no formaldehyde, no harmful rubber compound, no health effects on human body and animals, and small stimulation to the skin, easy to construct and operate.
Application: Widely used in small household appliances insulation, light steel construction, dragon skeleton insulation, equipment insulation, electricity, chemical, aviation, train cars, ships and other fields.
Nitrogen sealing valve working principle
Nitrogen valve without additional energy, the use of the media itself is the media as the power source. Automatically control the valve medium flow, so that the pressure after the valve to maintain a constant pressure stabilizer. Valve itself through the spool, diaphragm, spring and other mechanical components to stabilize the pressure at the exit P2. Work process: When the pressure of the inlet P1 increases, the pressure of the outlet P2 will increase accordingly. The increase of the pressure P2 smoothes through the diaphragm to the large air chamber below, The spring will be compressed, the valve spool connected with the spring will move in the direction of reducing the opening of the valve, thus reducing the flow rate and the outlet pressure P2 so as to achieve the purpose of stabilizing the outlet port P2 and vice versa. Nitrogen seal valve is a precise milli-scale regulator, compared with the outlet pressure of the pressure regulating valve its diaphragm will be much larger, take Germany Mankenberg pressure reducing valve DM762, for example, 762 diaphragm diameter range from 220mm To 500mm, the corresponding range of outlet pressure regulation from 0.015-0.030bar to 0.1-0.52bar accurate to 0.002-0.003bar to 0.012-0.07bar, it can be seen that the larger the outlet pressure, the smaller the pressure value. General nitrogen valve has a control tube and leak tube. The control tube increases the sensitivity of the valve, while the leak tube prevents the media from leaking into the spring space after the diaphragm ruptures. The leak tube can return the media to the proper storage space instead of venting it to the air. In addition, when the large diameter, flow rate can be used when the pilot-a combination of nitrogen seal valve, generally used in large tanks. The pilot-operated nitrogen seal valve is a combination of relief valve, millibar pressure reducing valve, filter and globe valve. Here is an example of the RP840 piloted nitrogen seal valve manufactured by Mankenberg in Germany. The RP840 consists of a pressure relief valve DV5.1, a pressure relief valve DM762, two restrictors and a filter cleaner. DV5.1 can guarantee a tank back pressure, when the tank to reduce the pressure of nitrogen decreased, DM762 ​​tank to add nitrogen; when the tank rises, the pressure of nitrogen is compressed, DV5.1 will be set The pressure relief point discharges nitrogen gas to the outside, but a back pressure in the tank is guaranteed. When the tank pressure reaches the set point, the DV5.1 will shut off. Search Keyword: More Valve Technical Articles