What is the difference between air controls on SENTRY Automatic, Adjustable, Chargeable and Inlet Stabilizer models?
Chargeable Models have a charging valve that allows for a predetermined pressure charge to be applied and held in the dampener. No permanent source of compressed gas is required to be attached to the dampener. Chargeable models are used primarily with metering, piston and peristaltic pumps for pulsation dampening. Chargeable models are also used for surge suppression to prevent water hammer from quick closing valves, for make-up fluid to prevent pump cycling, and for suppression of pump startup or shutdown pressure spikes. Adjustable Models use a self-relieving regulator to set dampener pressure. A compressed air line must be permanently attached to the regulator. The regulator allows for an easy, convenient method for readjusting the dampener if the system fluid pressure changes. Adjustable models are designed for use on air operated diaphragm pumps in systems with a constant discharge pressure. Automatic Models have an automatic poppet type valve located in the non-wetted section of
