NFPA Rated Air Lock

The HDXP heavy-duty, NFPA design valves are custom applied units to your specific dust collector application. Our engineers will review the application and evaluate the design based on KST values for the material, temperature, pressure and ambient conditions. Units can be built in cast iron, stainless and cast steel to match specific NFPA requirements. The HDXP is ideally suited for all your NFPA installations.