Radiator manufacturers have been concerned about the policies and regulations of the country, and strictly according to the provisions of the production and sales of various radiator, in fact, on the radiator leaking problem, the country has expressly provided we put these literacy for everyone, so you plainly buy radiator products. 1, the first in the national industry and enterprise standards for all types of radiators are mandatory standards, I strictly quality control department to oversee the implementation of quality control in the production process in full-time inspectors test pressure test post sent record, must be 100% fully integrated into the inspection and operating procedures, and to build customer profiles, must do a factory product watertight. 2 heavy group of type radiator cast iron radiator factory, the main reasons for water leakage caused by overpressure, or rough handling, or winter frost crack leaking radiator. Steel radiator with manual welding, for example, 1% of the weld is missing welding, the entire group is the radiator leaking scrapped. But more because under water maintenance or substandard water quality caused by corrosion of the radiator leaking. Radiator normal use how long leaking, the water quality criteria are satisfied: A cast iron radiator concluded since the liberation, more than 50 years, some have water leakage, the vast majority of normal use. B, copper waterway type radiator 0.0178mm / year based on the corrosion rate of the normal water quality, in terms of industry standards thinnest wall thickness of 0.6mm copper tube, the useful life of more than 30 years. C, steel radiators useful lives of the most convincing proof of Shandong Province, local standards "steel column radiators discussion paper quoted experts on steel radiators experimental evaluation data: radiator wall thickness of 1.5mm useful life five years; the radiator wall thickness of 2.0mm useful life of 10 years; the radiator thickness 2.75mm useful life of 15 years. After say this, you can probably understand the material and useful life of steel radiators are required by the state for this, if you buy the radiator quality problems, the manufacturers do not warranty, or returns, you the right to access to the courts to defend their rights. 5, most of the copper and aluminum composite radiator scene leakage reasons operation and installation workers related to inappropriate, improper installation due to poor brass stiffness, force can easily cause leaks.