Packing gland followers in LNG ball valves are manufactured from 316L stainless steel with mirror-finished stem contact surfaces. This reduces friction torque by 40% and prevents galling during thermal cycling, ensuring smooth operation even after years of static service in cold LNG storage facilities. https://globalsealstech.com/product-category/oil-gas-seals/api-6d-ball-valve-and-lng-seals/