Diaphragm Valves

One of the main benefits of a diaphragm valve is their long cycle life. Our diaphragm valves have manual, pneumatic and locking actuator options and come in a wide array of configurations, sizes, materials, and end connections. We rigorously test every valve and end connection we make for quality and performance. So you can be confident they deliver unparalleled value and low total cost of ownership.

  • High Performance DP series
  • High-Flow DF series
  • Replaceable-seat DPX/DFX series
  • ALD series
  • Designs available for Modular Gas Systems

Swagelok products and assembly work are backed by our Limited Lifetime Warranty.

Shop Diaphragm Valves for Your Application

Questions? Email or call 866.901.0151.

Browse Our Diaphragm Valves Catalog

How to Replace the Seat in the Swagelok Replaceable-Seat Diaphragm Valve