Plast-O-Matic BST050V-NC-PV Air Operated Valve is a normally closed valve powered by compressed air for remote or automated flow control in fluid-handling systems. In its de-energized state it remains closed, and applying air pressure opens the valve to permit flow, returning to closed when pressure is released. The BST050V-NC-PV designation identifies the normally closed configuration within Plast-O-Matic's BST valve family, indicating a simple, fail-safe shutoff compatible with standard air-actuated control schemes.
