Vent restriction devices should not be used in storage systems with which type of pumps?

Vent restriction devices are designed to limit the flow of air or vapors into and out of a storage tank to maintain pressure balance during product transfer and prevent potential environmental contamination. However, their use is not appropriate for systems utilizing suction pumps.

In suction pump systems, the operation relies on creating a vacuum to draw product from the tank. The presence of a vent restriction device would impede the necessary airflow that the suction pump requires to function effectively. If airflow is restricted, it can lead to the development of negative pressure that may cause operational issues and reduce the efficiency of the pump. Moreover, excessive negative pressure can risk tank structural integrity and increase the potential for leaks or failures.

By not utilizing vent restriction devices with suction pumps, the system is better equipped to manage pressure fluctuations without compromising safety or performance. Understanding the compatibility of pumping systems with venting components is crucial for ensuring effective and safe operations in underground storage tank systems.