Prefabricated direct buried insulation pipe features?
Prefabricated direct buried insulation pipe features? Dacheng Xiangdong Insulation Refractory Material Factory 13473696600 15731614448
Since the polyurethane foam can be firmly bonded to various materials, the polyurethane insulation tube hardly needs to consider the problem that the anti-corrosion layer is bonded thereto. The polyurethane insulation layer has an adaptation temperature of +120 ° C to 196 ° C and a short time (10 hours) up to +190 ° C. If the user needs a long-term temperature of 190 degrees. Long-term operation can save a lot of energy and significantly reduce energy costs. Set the alarm system to automatically detect the leak of the pipe network, accurately indicate the fault location and automatically alarm. The service life can reach 30-50 years and the high-grade rubber and plastic is a natural inorganic integral molding insulation material, which is made of NBR and PVC. It is suitable for medium temperature below 50 °C ~ l20 °C, its closed-cell structure has better thermal insulation performance and lower moisture absorption. The high-grade rubber and plastic insulation materials mainly have the following advantages: good heat insulation effect and remarkable anti-condensation effect, suitable as the outermost layer of the heat preservation pipe; flame retardant and smokeproof, safe and reliable; uniform appearance, high-grade appearance; convenient installation and quick construction.
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Submission:
Taps and dies are tools used to create purpose screw threads, which is called threading. Many are cutting tools; others are forming tools. A tap is used to cut or form the female portion of the mating pair (e.g. a nut). A die is used to cut or form the male portion of the mating pair (e.g. a bolt). The process of cutting or forming threads using a tap is called tapping, whereas the process using a die is called threading.
Using an ordinary tap or die to clean threads generally removes some material, which results in looser, weaker threads. Because of this, machinists generally clean threads with special taps and dies-called chasers-made for that purpose.
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