CFR & CFS Formed Vent Panels Brochure

6-4402CFR&CFSVENT PANELSIntroducing Continental DiscCorporation’s newest additionsto their full range of Vent Panels:The CFR and CFS Vent Panel, a CompositeFormed RECTANGULAR (CFR) and CompositeFormed SQUARE (CFS) vent panel designed toprovide instantaneous overpressure protectionfor 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 designedto allow a full and immediate opening to minimizestructural or mechanical damage that may becaused by expanding gases. These gasexpansions can result from the deflagration*of dust, gases, or mists in equipment, rooms,buildings, or other enclosures.CFR and CFS Vent Panel Features include:• Operating ratio up to 80% of minimum tagged rating• Withstands 1-1/2 psig (0,104 barg) vacuum (consult factory forvacuum requirements exceeding 1-1/2 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 frompositive 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 Disc Corporation’s B.D.I.® (Burst DiscIndicator) Alarm System (Refer to Bulletin #5-7701-5 forspecification details)* 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.”FORMEDCOR0625:Cfr&cfs vent panels.qxd 10/27/2010 9:18 PM Page 1CFR and CFS SpecificationsBoth the CFR and CFS composite vent panelshave a standard material construction of 316 stainlesssteel top section, TFE TEFLON®* seal and 316 stainlesssteel vacuum support. Each configuration is availablein burst pressures from 1.0 psig (0,07 barg) through10 psig (0.69 barg). Refer to Table I for size andpressure specifications.Maximum Operating Pressure and Burst ToleranceThe recommended operating pressure for the CFRand CFS Vent Panels is 80%. In addition, CFR and CFSVent Panels have a burst tolerance of ±25% for burstratings up to 2 psig (0,14 barg) and ±0.5 psig (0,035barg) for burst ratings above 2 psig (0,14 barg). Todetermine the recommended operating pressure, subtractthe burst tolerance from the vent panel’s burst ratingwhich establishes the minimum burst pressure, thenmultiply 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 1.75psig (0,12 barg). (Burst rating minus burst tolerance x .80).GasketsGaskets are available for both vent panel configurations.Materials include black neoprene, silicone rubber, whiteFDA-grade rubber, and fiberglass rope. Gaskets are “keylocked” together at the corners to assure a leak-tight seal(except on fiberglass). Refer to Table II for temperaturelimitations.Vent AreaContinental Disc Corporation reserves the right to alter the information in this publication without notice.Reproduction without written permission prohibited. © 2010 Continental Disc Corporation Printed in U.S.A.COR0625 1010inches cm ft2 m2 psig barg psig bargminimum maximumBurst Pressure at 72°F (22°C)Nominal Size18 x 35 46 x 89 18 45,7 35 88,9 21 53,3 38 96,524 x 24 61 x 61 24 61,0 24 61,0 27 68,6 27 68,624 x 36 61 x 91 24 61,0 36 91,4 27 68,6 39 99,136 x 44 91 x 112 36 91,4 44 111,8 39 99,1 47 119,4inches cm inches cm inches cm inches cm inches cmA B L WVent Frame Vent FrameOpening Size Outside DimensionsNominalSizeTable I – CFR and CFS Vent PanelsTable III – CFR and CFS Vent Panel FramesSquare and Rectangular FramingVent panel framing for square and rectangularconfigurations is available in carbon steel, stainless steel,aluminum, or other specified materials. The outlet frame istypically constructed of 1 1/2" x 1 1/2" x 1/4" carbon steelangle iron, stainless steel angle or aluminum angle.The inlet frame is constructed of flat bar with the ventpanel mounting studs permanently attached to the frame.Bolting or welding is used to mount the frame to thestructure. Refer to Table III for vent panel framedimensions.Black Neoprene 250°F / 121°CSilicone Rubber 450°F / 232°CFiberglass Rope 450°F / 232°CWhite FDA Grade Rubber 250°F / 121°CGasket Material Maximum TemperatureTable II – Recommended Gasket Temperature LimitsVENT PANELOUTLET CLAMPINGFRAMENUTSFORMED VENT PANELB.D.I. ASSEMBLY(OPTIONAL)GASKETBASE MOUNTING FRAMEWASHERS18 x 35 46 x 89 4.01 0,373 1.0 0,07 10.0 0,6924 x 24 61 x 61 3.67 0,341 1.0 0,07 10.0 0,6924 x 36 61 x 91 5.58 0,518 1.0 0,07 10.0 0,6936 x 44 91 x 112 10.44 0,969 1.0 0,07 10.0 0,69FLOWDIRECTIONTO UNIT HOUSINGWALL WITH BOLTS*TEFLON is a registered trademark of E.I. du Pont de Nemours and Company used under license.CORPORATEHEADQUARTERSContinental Disc Corporation3160 West Heartland DriveLiberty, Missouri 64068-3385Phone: + 816-792-1500Fax: + 816-792-2277E-mail: pressure@contdisc.comWebsite: www.contdisc.comTHENETHERLANDSContinental Disc CorporationEnergieweg 202382 NJ Zoeterwoude-RijndijkThe NetherlandsPhone: + (31) 71-5412221FAX: + (31) 71-5414361E-mail: cdcnl@contdisc.comCHINAContinental Disc CorporationRoom 910, Tower B, COFCO PlazaNo. 8 JianGuoMenNei AvenueBeijing (100005), P.R. ChinaPhone: + (86) 10-6522-4885Fax: + (86) 10-6522-2885Mobile: + (86) 137-0103-8871E-mail: cdcchina@contdisc.comINDIAGroth Continental Mfg. Pvt. Ltd.Survey No. 423/P, Mahagujarat IndustrialEstate, Moraiya, Sarkhej-Bavla Road,Ahmedabad 382213, INDIAE-mail: gcmpl@contdisc.comCOR0625:Cfr&cfs vent panels.qxd 10/27/2010 9:18 PM Page 2