With the development of environmental protection and energy conservation, people pay more and more attention to the installation of smoke exhaust pipes, but many people are laymen. It will provide an opportunity for some dark workshop poor smoke exhaust pipes to find some small workshop smoke exhaust pipes on the street.
If the construction citizen wants to know whether the quality of the smoke exhaust ventilation pipe he bought has passed a standard, the simple method is to hit the smoke pipe wall. The qualified smoke exhaust ventilation pipe has a wall thickness of 1.5cm. When the smoke pipe wall is corresponding to different places, the sound is consistent, muddy solid and crisp. For example, the smoke exhaust and ventilation pipes are poor, because of the uneven thickness of the pipe wall, the knocking sound at different positions is inconsistent.
The performance of the flue fan directly determines the quality of the exhaust air duct. A good flue fan can produce a good exhaust air duct, and a good exhaust air duct can have a good price, which is a good logic to understand. Smoke exhaust and ventilation pipe is a thin-walled component of cement mortar with alkali resistant high-strength fiberglass cloth as reinforcement material. The cement shall be fast hardening sulphoaluminate cement with strength grade no less than 32.5 or sulfate cement with low alkalinity. Medium sand shall be used. On the premise that reliable measures are taken to ensure that the flue is free of cracks during transportation and installation, stiffening baffles are not used.
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