apolo77Apollo 77-100 Overview . The Apollo 77-100 Series is manufactured by Apollo Valves; a Made in the U.S.A. company.Apollo is known for providing valves whose performance and versatility isThe Apollo® 77-Series is a full port, two-piece, bronze, ball valve with mounting pad. Features: Adjustable packing Blowout-proof stem desn RPTFE seats and stuffing box ring Hardened ball for wear resistance 100% factory tested