Explosion-proof valve, also called negative pressure explosion-proof door, is a new generation series of negative pressure protection products developed by Dalian Three-phase Machinery Equipment Development Co., Ltd. The device adopts magnetic automatic opening and closing technology, and the action pressure is accurate, and it is automatically reset after the action, and no parking is required. It is a new product that protects the boiler body and the flue from being sucked.
We are a joint-stock enterprose,it is an advantage backbone smelting enterprise focused on silicon multielement alloy 's R&D,PRODUCTION AND SALES. We have an abundant strength on technology,reseach and development capabilities, high quality on product,and good reputation in the markets,prossessing an autonomous regional-level industry technology center and a advanced complete product testing center.Basing on all these, we passes the ISO9001:2000QUALITY SYSTEM CERTIFICATION,got AAA level on quality,service and reputation,AAAlevel of bank credit business in china market.We have been granted as the "observe contracts and keep promise" of the autonomous regin and Shizuishan city for continously 20year.
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