Emergency Vacuum Vent

Pressure / Vacuum Vents

Applications

Vacuum breathing requirements of some petroleum products may vary so much from pressure breathing, that it is sometimes desirable and more economical to have separate vents to perform these respective functions. A minimum number of model options are required to cover the wide variety of fluids and temperatures encountered in the petroleum, chemical and general process industries. Many trims, body materials and settings are Standard options for those few conditions where Standard construction is unsuited. Standard materials of construction include low copper aluminum, steel, stainless steel or cast iron body. Metal seats are provided to withstand high pressures to which the vent may be Subjected. The body is self-draining and drip rings keep condensates from the seating surfaces. The Teflon diaphragm of the pallet has high resistance to adhesion by ice and gum formation, thus preventing sticking to the seat ring.

Features

● Less need for special materials in corrosive and extreme temperature
● Unique floating diaphragm construction assures tight seal
● Peripheral and stem guided vacuum pallet assures reliable operation
● Pallet contributes to high flow
● Heavy duty construction, yet compact enough for easy handling