An ASTM A351 CF3 Regulator is a pressure regulation device crafted from cast low-carbon austenitic stainless steel in compliance with ASTM A351 CF3 standards. This type of regulator operates on a classic force balance principle, where two opposing forces are set up, leading to different actions as the balance between them changes. Common components found in such regulators include a set screw, spring, diaphragm, and plug.