Keg taps, faucets and the parts that hold a draft line together — party and picnic pumps, stout and nitro faucets, FOB detectors and bottle fillers.
It follows the brewery, not the equipment. Sanke S and A cover most European kegs and D is the US standard. Tell us what you pour and we'll match it rather than lock you to one supplier.
It shuts the line the moment a keg blows, so the line stays full of beer instead of foam. On a long run that saves the next several pints at every keg change.
A party pump pushes air into the keg. That's fine for a single evening, but the beer flattens within a day or two. Anything longer runs on CO2 or a beer-gas mix.
It throttles the pour at the tap, which matters when line length and pressure are fixed and the beer arrives too fast.