Polypropylene Vertical Laminar Flow Workstation

APPLICATIONS:

Semiconductor, Microelectronics, Waste & Water Treatment, Research & Trace Metal Labs, Chemical Analysis, Pharmaceutical Manufacturing, Curing, Etching Processes, Plating Processes, Cleaning Processes, Photonics

DESCRIPTION:

Designed as a vertical exhausting laminar flow (clean) hood / workstation; to be used when toxic odors affluents or fumes are present. Provides product protection independently tested to ISO 14644- Clean air & containment / Personnel Protection independently tested to ASHRAE 110 (current).

• Intake air passes thru a HEPA filter (99.99% efficient on .3 microns) provides an ISO 5 or better airflow within work chamber
• Air is forced downward through the perforated work surface. ULPA filters provide an ISO 4.
• Air is exhausted upward & ducted for discharge at the top of the unit.
• A remote exhaust air system (building) is required to balance the work chamber's airflow pattern.
• This is a “Hybrid” hood which provides clean air into the work chamber and is also exhausted to maintain containment.
• PVE’s operate at a net negative and incorporate a downflow (clean Air) supply at approx. 60 FPM and exhaust at Approx. 85 fpm.
• The sash height is typically at 12”H; exhaust requirements are higher than standard fume hoods
• The use of polypropylene offers immunity to corrosion, resistance to acids & solvents, non-conductive properties, with minimal maintenance. Unit includes a vented, full depth base cabinet.
• Individually tested & certified to meet (exceed) the specifications for Laminar Flow Clean Air devices as per Institute of Environmental Science- IES-RP-CC-002-86, ISO 14644, SEFA 1-VELF; designed to meet national safety standards - NSF /ANSI 49 - the safety of products and personnel in the lab.

Specifications

Construction:

• • • 1/2" white stress relieved polypropylene.
    • Heat welded support seams for additional strength - Support ribs under work surface.
    • Front loaded HEPA filter.
    • Counterbalanced Vertical sash (clear polycarbonate).
    • Vented storage cabinet with leg levelers – SEFA Tested
    • Work surface perforated front and rear for laminar flow, removable for cleaning.
    • Rear exhaust plenum terminates at 10" - 14" dia. collar.
    • Fabricated with all plumbing, instrumentation and electrical complete (as per option requested).
    • Includes Polypropylene Hinges, Handles, Screws & Sash rope.
    • PV-X24-E = units are 32”D – outside depth | 26” Inside Depth
    • PV-X30-E = units are 36”D – outside depth | 30” Inside Depth

Airflow:

Requires facility exhaust. Average clean air velocity 90 fpm (+/-20 uniformity). Negative resistance, .50 IWG, Downflow / Clean supply air at 60 FPM (+/-20 uniformity).

Filter:

Three-inch HEPA (High Efficiency Particulate Air) type, aerosol challenged, zero probed. Aluminum frame mini-pleat design. Minimum efficiency of 99.99% at .3 microns. (ULPA filters available)
Prefilter: 1" bonded polyfiber media minimizes surface-loading. 78% arrestance ---- 56-57 ASHRAE

Electrical & Power requirements:

All electrical components are UL / NEC Approved. Standard 115V, 15A 1 Ph, 60 Hz.

Motor/Blower Assembly:

High efficiency motors to reduce electrical load. Motors are thermally protected & self-lubricating. High capacity curved blowers with direct drive motors or backward curved Impellors.

Lighting:

Sealed LED lighting. 120 ft. candle +/-20 ft. candles.

Controls:

Solid state, adjustable airflow control, 80-100 fpm, 15A max. load capacity, internally mounted to prohibit accidental change. Compact switches on face panel for motor & lights.

OPTIONS:

• Available as Constant Volume Hood
• Electrical Duplex GFI receptacles with Poly carbonate cover