The Lee Company’s high pressure 156 Lee Chek is the latest addition to the company”s field-proven, miniature check-valve family. Weighing only 0.7 grams nominal, the 0.156” diameter valve is nearly 2.5 times more efficient than other high-pressure check valves of similar size. The installed envelope is less than half that of a 0.187” diameter high-pressure check valve. Available in a forward flow configuration, the valve is constructed entirely of stainless steel, and features a hard, metal-to-metal seat for durability and long life. Each valve is 100-percent tested and inspected to ensure reliable, consistent performance. Maximum working pressure is 5,000 PSID.