drinking water storage tanks,drinking water tanks,drinking water tank
Drinking water storage tanks technical standards:
Posted by: Langtai
1, drinking water tanks should meet the requirements of this standard, and in accordance with the requirements of the drawings and size of manufacturing requirements.
2, the water tank after welding the solid parts shall not be loose, the connection shall not have leakage welding, shall not have the phenomenon of missing parts.
3, the water tank weld should be full, water tank outer welding surface to be smooth, beautiful, no slag, no welding tumor, no pores, no cracks, welding joints can not have cracked, separation phenomenon. Water tank liner weld to be polished. And shall meet the welding requirements specified in Table 2 below.
4, the water tank should be flat flat, deformation to meet the requirements of Table 3.
5, the top of the tank and the manhole must be fully welded, the same quality requirements in 4.3.
6, the connection port of the tank must be a good welding, and try to keep vertical, at least not more than 1 ° tilt.
7, insulation layer and the appearance of a solid water tank, the appearance of smooth. Insulation layer with polyurethane foam plastic or better insulation properties; decorative shell with stainless steel plate or other suitable materials, the surface may not be uneven, with scratches or rust, to Table 2 requirements.
8, for the dimensions to allow tolerance should meet the requirements of Table 3 below.
9, drinking water storage tanks filled with water, shall not be infiltration, water leakage phenomenon, there should be no obvious deformation, in accordance with the steel welding atmospheric pressure vessel full of water terms of the experiment. (GB50242-2002 building water supply and drainage heating and construction quality acceptance norms)
10, drinking water tanks should be kept vertical verticality should meet the requirements of Table 3.
11, drinking water tank the actual installed water should not be less than the nominal volume.
12, stainless steel used in water tanks should be consistent with the provisions of GB / T3280. Water tanks used in the plate must be used 304 stainless steel plate. Thickness tolerance of inner and outer plate is less than 10%.
13, carbon steel used in water tanks should be consistent with the provisions of GB / T 700. Tank all iron parts must be anti-corrosion treatment, need to do rust-proof anti-rust treatment twice, exposed to the outside part of the need to brush twice silver paint.
14, drinking water tank hole inside and outside the protruding parts should be done to deal with flanging or other protective treatment, to avoid cutting people.
15, clean, the tank filled with water in accordance with the provisions of GB5749, standing 1h, the water tank outlet should meet the requirements of GB5749.