Zhejiang CHAODA Valve Co., Ltd was established in 1984, CHAODA is a specialized manufacturer of industrial steel valve according to API, ASME, EN, ISO, JIS, DIN, BS, GOST & GB standards. The product includes ball, gate, check, globe, plug, butterfly, safety, oil field and other special valves that are applied broadly in petroleum, chemical, metallurgical and power generation industries. CHAODA VALVE launched its quality management and safety system as ISO 9001, ISO14001, OHSAS18001 and awarded API 6D, API 600, API 607, API 6FA, CE/PED approvals for the product. Product range: ball, gate, check, globe, plug, butterfly, safety, oil field and other special valves, Metal seated ball valve, bellow sealed valve and wafer check valve are the featured products. Pressure range:Class150~Class2500,PN10~PN420 Size range:NPS1/2~NPS80 Connection End: flanged, BW, SW, NPT, wafer type, etc.