4 inch Peak Hole w/ Cover
4 inch diameter inspection aperture / insulation plug with integrated swing cover. Available in 3/4″ and 1.5″ depths to accommodate various types of insulation.
This insulation inspection port is ideal for non-destructive (NDT) testing access through insulation jacketing in process piping, steam piping, vessels, tanks and other insulated industrial equipment requiring periodic inspection.
Industries include petro-chemical refineries, power generation facilities, chemical processing plants, cryogenic facilities, etc.
See installation page for example of application.