Flame Arrester Manufacturers

Listed below are the names, addresses, telephone nnmbers, fax nnmbers, and websites of flame arrester and deflagration snppression system mann-factnrers whose nnits are available in the United States as of the date of the pnblication of this book. This list is not intended to be all-inclnsive and is not intended to be an endorsement of any mannfactnrer or its prodncts. 

4470 South 70th East Avenue Tulsa, OK 74145-4607 Tel (918) 622-6161 (800) 336-2736 Website www.enardo.com 

11320 Fortune Circle, Suite G18 West Palm Beach, FL 33414-8742 Tel (561) 753-9556 Fax (561) 753-9563 Website www.cvtechnology.com 

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It should be pointed out that the hydraulic diameter method does not work well for laminar flow because the shape affects the flow resistance in a way that cannot be expressed as a function of the ratio of cross-sectional area to wetted perimeter (Green and Maloney 1997). However, some flame arrester manufacturers use this method for noncircnlar flame arrester passages. 

Figure 9-2 is a flow cuiwe (tank pressure vs. air flow), from one flame arrester manufacturer, that indicates pressure drop for flow in eidier direction. This figure illustrates that a 3-inch flame arrester would he adequate. 

Operating Temperature and Pressure Arresters are certified subject to maximum operating temperatures and absolute pressures normally seen at the arrester location. Arrester placement in relation to heat sources such as incinerators must be selected so that the allowable temperature is not exceeded, with due consideration for the detonation potential as mn-up distance is increased. Flame arrester manufacturers can provide recommended distances from heat sources, such as open flames, to avoid thermal damage to a flame arrester element. If heat tracing is used to prevent condensation of liquids, the same temperature constraint applies. In the case of in-line arresters, there may... 

Arrester Testing and Standards Regulatory and approval agencies and insurers impose acceptance testing requirements, sometimes as part of certification standards. The user may also request testing to demonstrate specific performance needs, just as the manufacturer can help develop standards. These interrelationships have resulted in several new and updated performance test procedures. Listing of an arrester by a testing laboratoiy refers only to performance under a defined set of test conditions. The flame arrester user should develop specific application requirements based on the service involved and the safety and risk criteria adopted. 

Deflagration Arrester Testing For end-of-line and tank vent flame arresters, approval agencies may require manufacturers to provide users with data for flow capacity at operating pressures, proof of success during an endurance burn or continuous flame test, evidence of flashback test results (for end-of-hne arresters) or explosion test results (for in-line or tank vent arrester applications), hydrauhc pressure test results, and results of a corrosion test. 

Enardo. no date. Brochure on Flame Arresters with Proven Performance. Enardo Manufacturing Company, Tulsa, OK. 

Flame Arrester Specification Sheet for Manufacturer Quotation... 

Continuous Flame Test A test in which a flame arrester is subjected to flame of a continnonsly burning mixture (as specified in UL 525 for deflagration or detonation flame arresters) on the outlet face of the arrester for one hour (or longer at the manufacturer s request). 

Crimped Metal Ribbon A flame arrester element that is manufactured of alternate layers of thin corrugated metal rihhon and a flat metal rihhon that are wound together on a mandrel to form a cylindrical assembly of many layers to produce a range of different sized triangular cells. The height and width of the triangular cells can he varied to provide the required quenching diameter. 

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