To obtain perfect joins, inside of the solder ring copper fitting and the outside of the copper pipe are cleaned using coarse steel wool, flux paste is applied, the pipe is then inserted into the fitting and heat applied from a portable propane torch until a ring of solder shows at the edges of the fitting. Sizes we have available are from 8mm to 54mm For EN1254-1 and 1/2" to 2" for ASME B16.22 ,solder ring Copper Fittings,presolder copper fittings,yorkshire copper fittings,pegler copper fittings,connex copper fittings solder ring copper fittings,presolder copper fittings,yorkshire copper fittings,pegler copper fittings,connex copper fittings Taizhou Runde Company , https://www.nerausmotor.com
Under the strong support of the leaders of COSCO Group's Safety Supervision Department and COSCO Shipbuilding Industry Co., Ltd., Nanjing International actively carried out technical research and quality improvement. After more than a year of hard work, the DK-28 exhaust valve and DK produced by Nanjing International in 2013. -20 Inlet and exhaust valves have successfully passed the product quality approval of Japan Daihatsu Co., Ltd., and obtained the quality approval certificate, and completed the first batch of product delivery of Anchai Company. In October 2013, the company signed a long-term cooperation agreement for both parties. The long-term cooperation has laid a solid foundation.
Through unremitting efforts, Nanjing International has seized 2,500 DK-20 exhaust valves, 1000 DK-20 intake valves and 1000 DK-28 exhaust valves. The "big order" signed this time is a testimony to the long-term strategic cooperation between the two sides, and it is a concrete manifestation of the common goal of "strong alliance, win-win cooperation", and made a response to the process of promoting the localization of the valve. Have contributed.
It is reported that the DK-28 intake valve of Nanjing International has passed the internal inspection of Anchai. After the inspection of Japan Daihatsu Co., Ltd. in May, Nanjing International can further seek cooperation with Anchai and strive to obtain more orders.
Recently, Nanjing International Marine Equipment Parts Co., Ltd. obtained a batch of 4,500 gas valve orders from Anqing Zhongchuan Diesel Engine Co., Ltd., which marked the cooperation and cooperation between Nanjing International and Anchai Company through the contact and efforts of Anchai Company for nearly two years. Finally, substantial progress has been made.