Profile: CN CSV STEEL VALVE CO., LTD specializes in the research, development, manufacture and distribution of specialized valves. Our main products include casting & forging gate, globe, check, ball, butterfly and automatic regulating type valves. Our products are made in accordance with customer requirements and specifications in API, ASME, ASTM, EN, and GB. The butterfly valve is a kind of valve that adopts the round butterfly board as the disc, and opens, closes and regulates the flow channel through the rotation of stem. The butterfly board of the butterfly valve is installed at the diameter direction of the pipe. The butterfly valve has such features as simple structure, economic material consumption, small volume & light weight. The forged steel valve is generally used for the high pressure valve requirements. These valves include forged steel gate valves, globe valves and check valves in accordance with American standard & national standard. The valves of this kind are of multiple varieties, and have diversified specifications ranging from ½" to 3".