Controles y Válvulas S.A. de C.V.

Automatización, Medición y Control

OBJECTIVE

The Model 5400 is designed for use on atmospheric and low-pressure tanks to reduce environmental emissions and product losses, when operating close to the set point.

TECHNIQUE

Under normal operating conditions, the pallet assembly is closed providing a tight seal. In the event the tank pressure increases due to product movement into the tank or thermal expansion of the product and vapors, the downward force on the pallet assembly increases providing a tighter seal. When the tank pressure reaches the set pressure of the pilot, the pilot assembly opens eliminating the additional downward force on the pallet assembly. The "full" tank pressure pushing upward on the pallet assembly will cause the main valve to open. Full flow will be achieved at no more than 10% overpressure. Once the overpressure is relieved the pallet assembly will reset providing a tight seal.

More in this category: Model 1049 Model 5500