The Model 4400 spring-loaded pressure relief vents are designed for higher pressure settings and are used in applications for normal or emergency venting pressure relief. The series 4400 vents are pressure-only devices and, as such, do not provide vacuum relief.
| Body Sizes | 2", 3", 4", 6" |
| Body Materials | ALUM, CS, SST |
| End Connections | Raised Face Flanged ASME B16.34 CL150 |
| Temperature Range | -400°F to 400°F |
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