A lower-cost variant of the 553, the 554 Pressure Relief Valve utilizes PVC internal components to provide precise positive pressure control in an enclosure with clean air or nitrogen purge. The 554 valve is used in the oil industry to maintain positive pressure in processing control cabinets.
- Diameter: 4 in
- Housing: Aluminum
- Housing Finish: Hard Anodized
- Seals: Neoprene
- Standard Cracking Pressure: 0.40 ± 20% inH2O