Microfinish Valves Pvt. Ltd manufactures One Piece Flanged Ball Valve. Microfinish Valves Pvt. Ltd is an ISO 9001: 2000 certified company. The One Piece Flanged Ball Valve available in series 84R1 of Class 150 and series 85R1 of Class 300 are flanged end valves designed to handle the most severe services. The One Piece Flanged Ball Valve comes with internally mounted blow-out proof stem and is fire safe and anti static in nature.