Mascot Industries

First high-performance metallic rupture disc for use in very low-pressure applications such as glass lined reactors. Ideal replacement for graphite rupture discs.90% Operating Ratio

TANK EQUIPMENTFunction and DescriptionPROTEGO® lift-actuated vent valves type AL/DK provide automatic venting of floating roof tanks when the floating roof is lowered onto its supports and the tank is either drained or refilled. When the floating roof is in its lowest position, the valve is forced to open through lift actuation, which prevents inadmissible vacuum during final draining or inadmissible pressure during refilling.The PROTEGO® AL/DK valve consists of a housing (1) with a sheet metal panel to be welded onto the floating roof, two or four connection nozzles (2) for installation of vent caps, cover (3), lift (4) including valve disc (5), lift pipe (6), and the condensate drain valve (7) which can be designed to be flame transmission proof. The condensate drain is sealed by a flat gasket attached to the valve disk (5). The cover (3) is sealed by a sealing cord (8).In general the device PROTEGO® AL 200 consists of a housing (1) with sheet-metal panel to be welded on the floating roof as well as the valve seat (2), lift (3) including valve pallet (4) and lift pipe (5). A flat gasket (6) provides sealing.As the lowest position of the floating roof varies for operation and assembly, specify the dimensions h1 and h2:h1: Distance between the lower edge of sheet-metal panel (or mounting flange) and the tank bottom in lowest position of floating roof (operating position with an empty tank).h2: Distance between the floating roof in lifted maintenance position and the height of the floating roof in fully lowered operating position (operating position with an empty tank).If the floating roof supports are changed from operating position to maintenance position, the lift has to be extended as well. This is done with an adjustable locking pin that is secured with a split pin.The valve is not flame transmission proof.Based on a hazard analysis with regard to material selection and function, the valves have no potential ignition sources. As a result, they are not subject to the European Explosion Protection Directive (ATEX) when used in explosive atmospheres.

Dust Hazard AnalysisIf your facility stores, handles or processes combustible materials, NFPA 652 requires a Dust Hazard Analysis (DHA) to be completed and documented into a final report. Fike offers DHA services to ensure the safety of your employees and the financial protection of your business.1.Identifying Your HazardsA walkthrough of your facility and review of process flow diagrams to understand how combustible material is conveyed, where dust clouds develop and where ignition sources may exist.2.Analyzing Your DustIdentifies where in your process dust is being introduced or emitted and reviews the documented explosibility of such dust; if necessary, dust testing is performed.3.Reviewing Your SafeguardsEvaluates your safety systems and processes to ensure they are compliant and effective; housekeeping and cleaning efforts are reviewed to reduce the risk of secondary explosions.4.Prioritizing RecommendationsAn action plan is developed to prioritize the areas of the process which should be addressed immediately, based on the likelihood of a hazard occurring and the severity of its consequences.