Phoenix Controls
Phoenix Controls makes airflow control devices that have changed the way the world controls air. Their initial product offerings were designed for laboratories, but Phoenix now makes terrific airflow control devices not only for laboratories and hospitals, but devices that can be considered for virtually any airflow control application. They make several tiers of products, ranging from high-speed control devices with abundant point capacity to mechanical flow regulators. All have in common that they require no routine maintenance, each is characterized to ±5% of signal accuracy on an NIST-traceable test stand, and each is capable of at least a 10:1 flow turndown.