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CFR & CFS Formed Vent Panels

CFR & CFS Formed Vent Panels
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PROVIDES INSTANTANEOUS OVERPRESSURE PROTECTION The Composite Formed RECTANGULAR (CFR) and Composite Formed SQUARE (CFS) Vent Panels are designed to provide instantaneous overpressure protection for dry, bulk handling and storage equipment, such as dust collectors, air scrubbers, sieves, elevators, driers, silos, spreaders and screens. The CFR and CFS Vent Panels are designed to allow a full and immediate opening to minimize structural or mechanical damage that may be caused by expanding gases. These gas expansions can result from the deflagration*of dust, gases or mists in equipment, rooms, buildings or other enclosures. FEATURES Operating ratio up to 80% of minimum tagged rating Withstands 1-½ psig (0,104 barg) vacuum (consult factory for vacuum requirements exceeding 1-½ psig) Non-fragmenting design Burst tolerance ±25% for ratings up to 2 psig (0,14 barg) and ±0.5 psig (0,035 barg) for ratings above 2 psig (0,14 barg) Excellent cyclic service capabilities (pressures going from positive to negative or negative to positive) Full instantaneous opening Fully opens under dynamic or static pressure conditions INTERCHANGEABLE with existing vent panel applications Available with Continental’s B.D.I.® (Burst Disc Indicator) Alarm System SPECIFICATIONS Both the CFR and CFS Vent Panels have a standard material construction of 316 SS top section, TFE fluoropolymer seal and 316 SS vacuum support. Each configuration is available in burst pressures from 1.0 psig (0,07 barg) through 10 psig (0.69 barg). Refer to Table 1 for size and pressure specifications. MAXIMUM OPERATING PRESSURE & BURST TOLERANCE The recommended operating pressure for the CFR and CFS Vent Panels is 80%. In addition, CFR and CFS Vent Panels have a burst tolerance of ±25% for burst ratings up to 2 psig (0,14 barg) and ±0.5 psig (0,035 barg) for burst ratings above 2 psig (0,14 barg). To determine the recommended operating pressure, subtract the burst tolerance from the vent panel’s burst rating which establishes the minimum burst pressure, then multiply by 80%. For example, a CFR or CFS Vent Panel rated 3.0 psig (0,21 barg) will have a minimum burst pressure of 2.5 psig (0,17 barg) and a recommended operating limit of 1.75 psig (0,12 barg). (Burst rating minus burst tolerance x .80). * Deflagration as defined under NFPA-68 is: “Burning which takes place at a flame speed below the velocity of sound in the unburned media.” Vent panels are not generally suitable for protection against pressure or shock waves produced from detonation of dust, gases, mists or explosives. Detonation as defined by NFPA-68 is: “Burning which takes place at a flame speed above the velocity of sound in the unburned media.” PERFO RMANC E

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TABLE 1 // CFR and CFS Vent Panels TABLE 2 // Recommended Gasket Temperature Limits Silicone Rubber Fiberglass Rope Black Neoprene VENT AREA Gaskets inches MAXIMUM TEMPERATURE White FDA Grade Rubber NORMAL SIZE GASKET MATERIAL NUTS WASHERS VENT PANEL OUTLET CLAMPING FRAME FORMED VENT PANEL Gaskets are available for both vent panel configurations. Materials include black neoprene, silicone rubber, white FDA-grade rubber and fiberglass rope. Gaskets are “key locked” together at the corners to ensure a leak-tight seal (except on fiberglass). Refer to Table 2 for temperature limitations. Vent...

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