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Large-Volume ATEX Purge System Type Y, Z and Ex [pz]

Bulletin Number:

  • HL
  • Industry Standards:

    (Volume up to 90 cubic feet) 3003 WPSA Type Y System, UL and FM Certified: Class I, Division I Group A,B,C, and D/Zone 1, Groups IIB and H2 to Division 2/Zone 2 Type Z system, UL and FM Certified: Class 1, Division 2 Group A,B,C, and D/Zone 2, Groups IIB and H2 to Non-hazardous ATEX Certified II 3 (3) G Ex [pz] II, -29 C ≤ Tamb. ≤ 49 C
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    Hoffman’s Ex [pz] purge system is designed and certified according to European requirements of ATEX Directive 94/9/EC and EN60079-2 for Type Ex [pz] applications.

    Application:

  • Hoffman’s Ex [pz] purge system is designed and certified according to European requirements of ATEX Directive 94/9/EC and EN60079-2 for Type Ex [pz] applications. ATEX certified Ex [pz] purge systems reduce the classification in the protected enclosure from Zone 2 to non-hazardous, thereby allowing the use and operation of general purpose equipment in the protected enclosure. Used as a Type Y purge reduces classification from Div. 1 to Div. 2. Type Z purge reduces classification from Div. 2 to Non-Hazardous.
  • These products are designed to supply one or more enclosures with a protective gas supply. Purge/pressurization systems can be used for electronics, electrical equipment, motors and switch gear in wall-mount to large enclosures. purge/pressurization systems also meet the demands of rack-mounted instrumentation, video displays, programmable controllers, computers, printers, recorders and measurement and calibration equipment.
  • Protected Enclosures: Enclosures should be constructed from materials such as metal or polycarbonate material to meet or exceed NEMA Type 4 or Type 12 performance requirements.
  • Specifications:

  • Available in 90 cubic feet maximum enclosure volume model
  • Regulator body: zinc with enamel finish
  • Vertical mount (VM) or horizontal mount (HM)
  • System face plate and mounting plate: Type 316 stainless steel tumble finish
  • Enclosure protection vent (90 degree)
  • Enclosure supply and enclosure reference bulkhead fittings: Type 316 stainless steel
  • Fastener hardware available in aluminum and stainless steel
  • Manifold body: anodized aluminum with Type 316 stainless steel valves
  • Enclosure pressure gauge: aluminum with enamel finish
  • Explosion-proof differential pressure switch with “C” contacts for alarm
  • Gas supply gauge: poly case and nickel-plated tube
  • Rapid-exchange control valve
  • Modifications and Customizations:

    nVent HOFFMAN excels at modifying and customizing products to your specifications. Contact your local HOFFMAN sales office or distributor for complete information.
    Drawings and Technical Publications are available by clicking the "Items" tab. Select your desired Catalog Number and click on the Downloads tab for that particular catalog number.
     
    Catalog Number Width in. Depth in. Height in. Volume ft. 3
    Catalog Number Width in. Depth in. Height in. Volume ft. 3
    15 7.50 8.00 90
    8.00 7.50 14.00 90