Min. Order Reference FOB Price
1 Piece US$500.00-700.00 / Piece
Product Description
API 7-1 Full Opening Safety Valve (FOSV) , Kelly Cock, Kelly Valve, Safety Valve Product Description Kelly valve also named Kelly cock or drill pipe safety valve. It is a hand control valve in drill string circulating system and it is one of the effective tools to prevent blowout. Kelly valve is ...