1, feel, visually welded water tanks, should conform to the 4.2 requirements.
2, water tank water injection test:
Shut down the sewage valve and the outlet valve, water injection to the prescribed water level, by 2h~3h, the water tank all parts must not have leakage and apparent distortion phenomenon.
3, the water quality index test according to the stipulation of GB/T 5750.
4, appearance inspection:
Visually inspect in normal light.
5, the vertical degree of water tanks measured by gauges, should conform to 4.10 requirements.
6, the connection flange connects GB/T 9119-2000 The stipulation method carries on the test; the connecting pipe thread is tested according to the prescribed method of GB/T 7360.2-2000.
7, the water tanks used in the stainless steel plate and carbon steel inspection of their purchase certificates, there are disputes according to GB/T 3280 and GB/T 700 The method of the test.
8, insulation layer by visual inspection.