Single-seat control valve structure parameters through single-seat control valve body has only one core and valve seat, DN≥25, the spool is double oriented (now fine small single-seat control valve has been replaced by a single guide); DN≤25 When the spool is a single guide. The valve is generated abroad in the 1940s seal butterfly, 60's by domestic joint design, which is characterized as follows: ① Because only one spool, it is easy to ensure the seal, a small amount of leakage, but not completely cut off. The standard leak was 0.01% Kv, and therefore require a small amount of leakage is suitable for the occasion. After further design can be used as a shut-off valve. ② Because only one spool unbalanced thrust, generated great pressure on the spool. Before setting valve pressure after P1, the valve pressure P2, stem diameter ds, seat diameter dg electric characteristics of a resilient seated gate valve, flat type seal butterfly valve how much dirt accumulation seal butterfly does not appear model, the sealing more reliable 2, valve overall package nitrile rubber, the valve parts are made of corrosion-resistant non-rusting steel and copper alloy material that can be used for sewage systems adapt to poor working conditions 3, small size, light weight Butterfly Valve Manufacturers, easy installation and maintenance 4, valve stem three O-ring seal, greatly reducing the friction resistance switch, the switch light and watertight. Butterfly Valve Butterfly Valve factory price _ _ by the Tianchang Tianchang instrument linked instruments Instrument Union Meter Sales Limited. Instrument Sales Co., Ltd. Tianchang instrument Union (www.ylybxs.com) (www.ylybxs.com) strong, credible, in Chuzhou temperature instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Tianchang instrument linked instruments into the brilliant and you work for a better future!