elements_selector: "iframe" Operators should be required to clean the overspray routinely from the booth. } The risks in a powder coating booth electrostatically charged dust particles. new LazyLoad(); Wet pipe sprinkler protection within a powder booth and adjacent powder recovery enclosure should be at minimum inspected annually as part of base building sprinkler system annual test, for basic exercising of sectional shut off valve(s), any physical damage to piping, pipe hangers, changes to the booth impairing sprinkler protection, etc. We are getting ready to install a manual gun powder coating system. The system is directly tied into the buildings fire sprinkler system and was serviced 5 years ago. info on Amazon. or All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. from Abe Books "text": "#237afc" (Fire Protection) C.S.P. We are getting ready to install a manual gun powder coating system. Only your local fire department can answer that. FIRE/SAFETY INFORMATION: Per National Fire Protection Association (NFPA) codes, spray booths using cartridge-type filtration and/or using automated spray guns must have fire detection. - 25 years field experience with variety of insurance companies. Fire protection should be provided for dipped or flow-coated metal in the part of the oven where dripping occurs and throughout some ovens, such as those for baking expanded-metal lath. - Make up air for the spray booth and oven. My questions are, is this actually required in Powder Coating booths? (adsbygoogle = window.adsbygoogle || []).push({}); Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. }, Look for 'final filters', Basically you need a plenum after your exhaust fan to hold these filters. FORUMcurrent topics, A discussion started in link to spec at Techstreet], which outlines the classification of the area the booth was installed in. A dust explosion may occur when both: 3 (i) the concentration of dust in the air is between the Lower Explosive Limit (LEL) and Upper Explosion Limit (UEL). Why waste warm or conditioned air to the outside environment? I have seen buildings with complete sprinkler systems burned to the ground because of involved oven fires that have overwhelmed the ability of the ceiling sprinklers. Thus the risk of fire is minimalized. Sprinklers are protected from residue, means of protection is noted on the plans, 2404.5.2. "button": { Also, make sure that the compressed air blow-off hoses are grounded. They may suggest CO2 extinguisher for the control panel. I was thinking this needs to be done annually? Any answers would be greatly appreciated. - Recirculation of exhaust air from the spray booth is specifically prohibited. Ron Joseph, Organic Coatings Editor, has provided some information for ensuring fire protection in powder coating booths. To help eliminate the confusion, Section 15.5 – Protection, was added under Chapter 15. For example, in the case of a liquid fire, the exhaust should be kept running, which is just the opposite for a fire in a powder application. Post your own question ... Heads should have a small 'paper' bag on them, secured with a rubber band to prevent them from being 'loaded' with overspray. Secondary would be a CO2 System. This is one the selling points when purchasing this type equipment. Fire Does Happen in Powder Coating Booths . A. and It is not usual to exhaust powder to the outside. 36. Remarks should be part of the base building sprinkler system test record. The new CEN standard EN12981 states that all powder coating booths shall have a fire detection system. It is apparent that Fire Suppression is required in the booth. Or is the powder used for powder coating considered non-flammable nor non-combustible, therefore the powder coating booth need not conform to this regulation? }); With regards to sprinklers in OVENS. In addition, lighting and electrical connections must meet NFPA 70 [affil. Some powder booths have a three stage filter system allowing the air to be returned to the shop. Q. I have a basic question. The installation of your booth is required to meet the requirements of NFPA 33 [affil. A. IR / UV detection is not required in an open face manual booth with a gun trigger (dead man switch). An explosion will create a few maintenance problems. This danger is present in spray booths for the application of organic liquid and powder coating materials. Booths, exhaust ducts, and both sides of dry filters are protected by a fire-extinguishing system, 2404.4. If you have powder in the correct concentration with oxygen and a spark of sufficient energy . A. should not be within the enclosure. 2002 but continuing through 2017. Explosion variables include powder Kst - explosion property or Pmax, powder flow rate maximum delivery, ventilation airflow rate. The NFPA is somewhat evasive but seems to treat the requirements the same as solvent based liquid spray painting. I had one insurance company ask me to install a water suppression system within my oven. You need to understand this code! One last thought: Since the booth is required to be ventilated, you will need to investigate the impacts on your existing air permit, provided you have one, or you will need to obtain one if you are above regulated de minimus levels. All of our paint booths comply with all OSHA and NFPA 33 guidelines and many can be ETL certified. As stated earlier, the installation of your booth is required to meet the requirements of NFPA 33 [affil. I have also been asked by a few insurance companies to install equipment into these booths such as yours, but after I have shown them many other similar type systems, they have understood. And this is probably a rhetorical question, but why are the systems not built into the booths? Q. What are the requirements for automatic sprinkler system protection in powder coating applications? IR /UV detection is required in auto gun booths to shut down powder delivery / ignited powder. Fire Protection and Interlocks: 32. Q. : Veneer dryers) The sprinklers chosen are ultra high temperature and do not activate at normal oven temperatures. NFPA 33 is intended for fire control for large-scale, indoor spray paint applications such as industrial spray paint booths. 2. I claim no expertise in fire suppression, so I'm not challenging your statement, just trying to understand it. by NFPA I thought "B" fires were liquid or gas. Thanks. link to spec at Techstreet]. (A CO2 or other type of extinguishing system is not recommended due to cost or effectiveness) Piping feeding the heads should have a separate control valve (so that it can readily be turned off without impairing your building sprinklers). - Powder recovery system. "palette": { 1. 33. Q. I have since obtained NFPA 33 (2000 edition), as a responder suggested. or benefit from 30 years of feedback on 60,000 finishing topics. You most likely will have to install some expensive installation. link to spec at Techstreet]. The risks in a powder coating booth electrostatically charged dust particles. Because of the enclosed area and 'plastic' nature of dust epoxy for the powder coating - a simple 'water spray' type of fire protection system is recommended. Other systems are available. Fire Protection in Powder Coating Booth . <50% MEC = adequate ventilation does not require explosion suppression system. It may be the frequent change in NFPA requirements. After purchasing compressed air hose, have maintenance check to ensure there is an internal ground wire. Much thanks! We are having a very well known supplier build us a booth, and had it not for my checking sources for Powder Coating Safety, we would have had no idea about Powder Coating booths requiring a fire suppression system. Maximum Concentration / MEC - Maximum Explosive Concentration (a property of the powder) gives a % MEC result. 34. each: 35. operat. Sprayed metal parts or lithograph-coated metals do not generally contain sufficient combustibles to require fire protection in the oven workspace; however, fire protection is needed for electrical … Although the booth and equipment manufacturers design their systems to the highest standards for safety there is always a risk that a spark will occur in a powder coating booth.