What is the intended use of a laboratory faucet backflow device?

The intended use of a laboratory faucet backflow device is that it is not designed to be operated with continuous pressure. This is important because backflow devices are meant to prevent the reverse flow of non-potable water into the potable water supply, particularly in settings like laboratories where various chemicals might be used. When a backflow preventer is exposed to continuous pressure, it may fail to operate effectively or could potentially get damaged, defeating its primary purpose of protection.

These devices are generally intended to handle intermittent or periodic use, aligning with situations where a faucet may be used for short durations rather than being left on continuously. Proper operation and maintenance of these devices include ensuring that they are not subjected to conditions that could interfere with their function, such as continuous pressure situations.