Crissair is the recognized leader in the manufacturing of check valves.
Since 1954, Crissair has manufactured a wide variety of custom and standard check valves. With thousands of qualified designs, we offer inline and cartridge thread or plug in check valves in a broad assortment of sizes, flow rates, and materials of construction with either hard or soft seats.
- Hard Seat
- Soft Seat (Zero Leak)
- Rosan Style
Manually / Mechanically Controlled
Normally Open (Drain Fuse)