The Apollo 70 series is the most widely used general-purpose bronze ball valve in the industry. It features: Chromium-plated ball, blow-out-proof stem design, adjustable packing gland, and is 100\% factory tested. The performance rating is: Maximum 500 deg. F., vacuum service to 29" high. Manufactured to include no more than 0.25\% weighted average lead content on wetted surfaces.