T/SDHIA 10-2024 positive-pressure air-vent。

Scope

Main technical content: It shall be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. The purchased and outsourced components shall comply with the relevant standards and be accompanied by product quality certificates provided by the manufacturer. The maximum working pressure difference shall be determined by the manufacturer based on the structural materials or actual measurements, and the positive pressure air vents shall operate within the specified working temperature range. It shall be made of steel, aluminum profiles, or other materials that meet the usage requirements. The valve bodies, linkage valve plates, and spray-painted panels shall be firmly connected and operate flexibly. All rotating parts shall rotate smoothly without jamming or collisions. Parts prone to loosening shall have reliable anti-loosening devices. The decorative surfaces shall be free from obvious scratches, indentations, blotches, impurities, and shall have even seams, without light transmission or misalignment. There shall be no color differences in the decorative surfaces. Welding points shall be smooth and firm, ensuring a smooth and flat surface after surface treatment. Polished surfaces shall be smooth with clear patterns, without obvious burrs, scratches, bumps, or irregular patterns. The allowable deviations in dimensions, seams, and flatness shall comply with JG/T 14. When used in fire smoke exhaust systems, its fire resistance, smoke exhaust performance, and high-temperature resistance shall comply with the relevant provisions of GB 15930. When used in ventilation systems, its air volume adjustment performance shall comply with the relevant provisions of JG/T 436. The aerodynamic performance shall be determined under standard conditions at different throat velocities, and the pressure loss values and range (or diffusion radius) values at corresponding air volumes shall be tested. When the throat velocity is 3m/s to 6m/s,

Development Information

Related Standards