Purging/Pressurization s ystems Sma- all nd l arge-Volume Purging/Pre SSurization Sy Stem S D77S66pec-330..0442222226..22621010 Hazardous Locations Purging/Pressuritzioan s ystems s - amall nd l arge-Voulme Purging/Pressuritzioan s ystems smaLL-VoLume t yPe y and z Purging/Pressurization s ystem Protected enc Losures Enclosures should be constructed from materials such as metal, fiberglass or polycarbonate material to meet or exceed NEMA Type 4, Type 4X or Type 12 performance requirements. c Lass ratings Classes define the explosive or ignitable substances that are present in the atmosphere. Class I Flammable gases or liquid vapors Class II Ignitable metal, carbon or organic dusts Class III Ignitable fibrous materials grou P ratings Groups define substances by rating their explosive or ignitable nature in relation to other known substances. di Vision ratings Divisions define the degree of hazard by determining an explosive or ignitable substances expected concentration in the atmosphere. Division 1 Contains substances under normal conditions Division 2 Contains substances under abnormal conditions ty Pica L c Lass i su Bstances Group A Acetylene Group B Hydrogen or >30% hydrogen by volume Group C Ethyl, ether and ethylene Group D Propane ty Pica L c Lass ii su Bstances Group E Aluminum, magnesium and alloys industry standards Group F Carbon, coke and coal Group G Flour, grain, wood, plastic and chemicals For a1001yzumc 1 (Volume up to 2 cubic feet) NEC t ype y Class I, Division 1, Groups A, B, C and D to Division 2 notes NEC t ype Cz lass I, Division 2, Groups A, B, C and D to Unclassified Division 1 areas must be surrounded by Division 2 areas. Classified by Underwriters Laboratories, cUL and Factory Class II, Group E areas must be rated as Division 1 areas. Mutual modi Fication and customization Hoffman excels at modifying and customizing products to For a1001yzumc 2 (Volume up to 10 cubic feet) your specifications. Contact your local Hoffman sales office or NEC t ype y Class II, Division 1, Groups F and G to Division 2 distributor for complete information. NEC t ype z Class II, Division 2, Groups F and G to Unclassified Bulletin: H l Classified by Underwriters Laboratories, cUL and Factory Mutual a PPLication Small-Volume Purging/Pressurization Systems are an alternative to NEMA Type 7 or 9 enclosures. The C1 model allows general- purpose enclosures, up to two cubic feet, to be used in certain Class 1 hazardous locations. The C2 model allows general purpose enclosures, up to 10 cubic feet, to be used in certain Class 2 hazardous locations. sPeci Fications Universal mount Available in two models for enclosures with a maximum enclosure volume of up to 2 or 10 cubic feet Mounting plate: Type 316 brushed stainless steel Regulator body: zinc with enamel finish Enclosure pressure gauge: aluminum with enamel finish Polycarbonate regulator handle Fastener hardware available in aluminum and stainless steel Includes tamper-proof regulator with gauge (TR-10G) to comply with NFPA standard requiring protection against overpressurization n ote: Pressure Vent not required when inlet pressure limited to 5Psi using standard tr -10g. For inlet pressure over 5Psi order ePV-1-sa -00 or ePV-1-sa -90 separately. c ontact Hoffman for pricing. 1 Hazardous Locations SUBJECT TO CHANGE WITHOUT NOTICE EQUIPMENT PROTECTION SOLUTIONS Spec-00226 DPurging/Pressurization s ystems Sma- all nd l arge-Volume Purging/Pre SSurization Sy Stem S Standard Product Height Width Depth 3 3 Catalog Number Model in./mm in./mm in./mm Volume (ft. ) Volume (m ) Weight (lb.) Weight (kg) A1001YZUMC1 1001, Class 1 9.00 9.00 5.00 2 .06 8.25 3.74 229 229 127 A1001YZUMC2 1001, Class 2 9.00 9.00 5.00 10 .28 8.50 3.86 229 229 127 EQUIPMENT PROTECTION SOLUTIONS PH 763.422.2211 FAX 763.422.2600 HOFFMANONLINE.COM Hazardous Locations 2 Spec-00226 D