Sierra Instruments - The Secret to More Stable Foam
Deep in a Belgian forest in a thousand year old Trappist Monastery, the brewmaster at Oval Brewery was looking for the secret to more stable foam.
Ghislain Piot, a sales agent for Sierra products, offered his help. Already familiar with the successful application of Sierra mass flow controllers at Heineken, Europe's largest brewer, he suggested they install the Sierra Max-TrakTM Model 180 to gently add nitrogen to what beer experts worldwide regard as liquid gold.
For the last 25 years, NASA has relied on the accuracy of Sierra Side-TrakModel 830 and 840 thermal mass flow meters to get the right mixture of nitrogen, argon and oxygen to their shuttles during ground testing. Six years ago, Steve Chism, a sales agent for Sierra in Orlando, Florida, identified a way NASA could upgrade the outdated technology they were using to maintain positive space shuttle cargo door air flow on re-entry. He was convinced that Sierra's Model 708 thermal mass flow meter was ideal for this mission-critical function.