Apollo 12CBE1 143 Series manual gear-operated butterfly valve is a 10-inch lug-style valve designed for industrial piping, featuring a bronze-disc option and a 12-bolt flange pattern for secure bolting to matching flanges. It is a manual gear-operated valve rated to 200 psi for 2"–12" sizes (the 10" size falls in this range), with retainer screws for dead-end service, and it is compatible with ISO 5211 top plates for direct mounting of manual operators or actuators. The 143-series general-purpose design is commonly used in industrial and HVAC/mechanical applications where reliable throttling of liquids or gases is required in process lines and bulk piping.
