Draught Equipment and System Configuarations > Equipment and Configurations for Long-Draw Draught Systems > Beer

While exceptions exist, most long-draw systems still push beer from kegs.  Beer exits the keg through a coupler and usually enters a vinyl beer line just as we have seen with temporary and direct-draw systems.  But here the vinyl doesn’t last long.  It typically goes about six ft. before connecting to a wall bracket which serves as a transition to specialized barrier tubing.  Designed for minimum resistance and superior cleanliness, barrier tubing should carry beer most of the distance from keg to faucet in long-draw systems. But barrier tubing isn’t the end of the journey; most draught towers use stainless steel tubing to carry the beer to the faucet.  In addition, many systems install some length of narrow-gauge vinyl tubing called “choker” between the end of the barrier tubing and the stainless steel tubing of the draught tower, to provide a way to accurately balance the system.  In the end, however, the beer flows through a faucet just as we saw with the direct-draw systems.

You may also find Foam On Beer (FOB) detectors on the beer lines of many long-draw systems.  Located in the cooler at or near the wall bracket, these devices detect empty kegs and shut off flow to the main beer line.  This prevents beer loss by keeping the main beer line full of pressurized beer while the keg is changed. The jumper line between the keg and FOB is then purged and normal beer service can resume.

Long Draw System

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