1), steel finned tube convector heating system should meet the operating pressure and system pressure requirements finned tube radiators, should be consistent with national or industry standards. 2), in open heating systems and high humidity rooms (such as bathrooms, swimming) should not be used just made radiator. 3), the test results and data products were identified by checking the sample (test product requirements for sampling products Harbin finned tube radiators, test reports within nearly two years). 4), the manufacturer shall provide steel finned tube convector radiator water resistance characteristics of the data. 5) of the steel finned tube convector radiator appearance inspection. Each welding parts should be smooth, machined surface at the interface should be fine and to ensure squareness and flatness. 6), the product is suitable for hot water heat medium working pressure 1.0MPa, steam heat medium 0.3MPa. 7), should check whether the radiator with excellent quality steel (on seamless steel tube for conveying fluid or low pressure), the bonding process between the pipe and fin tubes are tightened. Finned tube radiator production and optional parameters 1: Quality requirements finned tube finned tube pitch 6-7 mm, fin height should be greater than 15 mm Shijiazhuang finned tube radiator fin rake angle should not be greater than 80, straightness per meter finned tube should not be greater than 1.0 m m. For high frequency welding process finned tubes, the sum of the actual weld length measurement at each meter fin tube should be greater than 85, and not a continuous weld length should greater than 50 mm 2:. steel finned tube convectors welding quality requirements: steel and steel pipe GB 151 to comply with the provisions of the collusion. Welding shall conform to GB / T 985's. 3: steel finned tube convectors should cover before adding pressure test or by group Shandong finned tube radiator pressure test, the test pressure is 1.5 times the working pressure. 4: steel finned tube convectors take over the thread shall comply with JG .1 31's. 5: film quality steel finned tube convectors should spray anti-rust primer and topcoat; panel should paint, paint preparation should comply with GB / T 1727's. Surface coating should be uniform and smooth, firmly attached, without bubbles, accumulation, flow and leakage jet. Shijiazhuang finned tube radiators, air conditioning Watson (certified), finned tube heat sink provided by the Texas Watson air-conditioning plant. Texas Watson air-conditioning plant (www.wchuaxin.com) (www.wchuaxin.com) Shandong Dezhou, heat, refrigeration and air conditioning equipment leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Watson air conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Watson conditioned a better future.