Pressure Balance Elements (Vent Plugs) Technical Guide

This document explains the function and selection of Pressure Balance Elements (PBEs), also known as vent plugs, which equalize pressure inside and outside enclosures to protect seals and prevent condensation. It details key performance parameters like Air Flow Rate (AFR) and Water Intrusion Pressure (WIP), and provides specifications for polyamide and stainless steel vent plug models with various thread sizes, IP ratings, and agency approvals.