Swagelok Company HC-4P4T Instrument Plug Valve

Swagelok HC-4P4T Hastelloy Instrument Plug Valve is a quarter-turn isolation valve designed for corrosive instrumentation lines. The Hastelloy body (HC) and 1/4 in Swagelok tube fittings on both ends enable direct, leak-tight connections to standard tubing. With a Cv of 1.6, it delivers reliable shutoff performance with modest flow, making it suitable for sampling and measurement branches in demanding service. This compact valve is built for frequent actuation in corrosive process streams, where chemical compatibility and durable operation are essential. The HC prefix indicates Hastelloy construction, offering superior resistance to aggressive chemicals and elevated temperatures compared with many stainless-steel options. As part of Swagelok's P4T instrument plug valve family, the HC-4P4T focuses on small-diameter instrument lines that require dependable isolation and fast operation, providing a robust solution for instrumentation in challenging environments.