Profile: Excel Artificial Gas Lift Enterprises, LLC. specializes in a full range of gas lift products. Our products include mandrels, gas lift valves and latches. Our round mandrels are ideal for high pressure and special clearance applications. The body of the mandrel is manufactured from round tubing. Our ERK latches are spring loaded ring style latches used to secure valves and accessories in side pocket mandrels. These latches consists of two O-rings on the bottom skirt which seal in the top of the latch tube.