Horizontal Laminar Flow Hoods
9620-PP-01 71397
Horizontal Laminar Flow Hoods
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Manufactured By: Terra Universal
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Product Details
• Terra's Horizontal Laminar Flow Hood exceeds ISO 5 particle requirements for critical operations in the biotech, pharmaceuticals, electronics and semiconductor industries
• Powerful, low-energy fan/filter modules provide a back-to-front laminar flow of HEPA-filtered air across the work surface
• The variable-speed, electrically commutated filter/fan(s) provide average air speeds of 109 FPM (0.55 m/s) while maintaining an industry-best noise level of 50 dBA and energy efficiency
• Internal baffling plates and anodized aluminum diffuser panel ensure uniform air speed across the work area
• All models include a powder-coated steel stand with adjustable leveling feet that raise the work surface to 31” (787 mm) above the floor
• Take-up ducts along the edges minimize turbulence in the work area, providing a smooth exit for airflow
• Built-in recessed illuminator provides diffused lighting without interfering with laminar flow
• Interior surfaces, including the side panels and work surface, are 304-stainless steel; as an option, components can be electropolished to remove subsurface contaminants for an ultra-clean finish
• Exterior surfaces feature a chip-resistant, powder-coated finish
• Marks & Listings: CE, UL, ULC
Horizontal Laminar Flow Station
Standard Features
- A Fluorescent lightFluorescent light standard, UV sterilization bulbs available
- B Fan Filter UnitsHEPA fan/filter units provide laminar flow of micro-filtered air
- C Minihelic gaugeMinihelic gauge measures filter backpressure
- D Stainless steel work surfaceStainless steel work surface (available with electropolishing)
- E Variable-speed blowerVariable-speed blower adjusts air speed to meet containment requirements
- F Range of OptionsOptions include vacuum, DI water and gas utilities
- H Status IndicatorStatus Indicator
Not Shown: Nylon levelers - Steel-reinforced nylon levelers resist most chemicals
Horizontal Laminar Flow Hoods
304SS Smart Whisperflow HLF, 12'W- Stainless Steel Smart WhisperFlow Horizontal Laminar Flow Hood
- Horizontal Laminar Flow Station
- Custom Horizontal Laminar Flow Hood, 316 Stainless Steel, Open Interior, 120V
304SS Smart Whisperflow HLF, 12'W
Shown: 6'-wide Horizontal Laminar Flow Hood; requires two fan/filter units (sold separately) | 9620-64A displayed Stainless Steel Smart WhisperFlow Horizontal Laminar Flow Hood Stainless steel interior ensures optimal cleanliness and chemical resistance for sensitive work
Horizontal Laminar Flow Station provides an enclosed, HEPA-filtered work environment with stainless steel interior | 9620-64A displayed Horizontal Laminar Flow Station Horizontal-flow clean bench includes multi-speed HEPA filter/fan units to meet ISO 5 cleanliness standards; take-up return slots minimize edge turbulence
Custom horizontal laminar flow hood with electrical outlets and 316L stainless steel construction, 120V | 9620-63A displayed Custom Horizontal Laminar Flow Hood, 316 Stainless Steel, Open Interior, 120V Horizontal laminar flow hood features durable 316 stainless steel construction. Built-in recessed light illuminates open interior. Minihelic gauge alerts to changes in airflow pressure to indicate the need for filter replacement.
Features & Benefits
Features and Benefits
ValuLine HLF Specifications
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Valuline Horizontal Laminar Flow Workstations
Important Note: This work station is designed for particle-sensitive applications and does not protect operators against hazardous fumes, vapors or aerosols. See Terra's exhaust purification systems for operations involving hazardous fumes.
- Construction: Fabricated from welded 16-gauge C.R. steel; includes adjustable levelers
- Work Surface: 304 Stainless steel
- Finish: Exterior surfaces feature a chip-resistant, powder-coat finish
- Prefilters: Disposable fiberglass
- Final Filters: Choice of HEPA (rated 99.99% efficient @ 0.3 µm particles) or ULPA (rated 99.999% efficient @ 0.12 µm particles)
- Lighting: Fluorescent type. Recessed to eliminate air flow disturbance. Accepts lens for yellow light, if necessary
- Fan/Motor: Brushless, 1/3-HP, electrically-commutated motor, centrifugal type with backward-inclined fans and sealed bearings; rated for continuous duty; furnished with overload protection
- Average Airflow Velocity: 109 (± 10) FPM (0.55 m/s) at medium speed, measured 12" (305 mm) below filter face
- FFU Air flow: 767 CFM (2'x4' model) - all models rated at 109 FPM (0.55 m/s) at medium setting under HEPA filter load
- Sound level: 40 dBA, measured no more than 12"(305 mm) from filter face @ 109 FPM (0.55 m/s)
- Performance: Dust count exceeds Class 10 requirements (per Fed-Std 209E)
- Backpressure Gauge: Minihelic® gauge, 0 - 3" Water Column monitors backpressure across filter
- Electrical: 115VAC, 50/60Hz, single phase (220VAC, 50/60Hz available). Consumes 280W/2.4A at the avg air speed. Meets the requirements of the National Electrical Code and applicable local codes. All components UL listed and CE marked
- Options: Audible/visible filter alarm system (measures face velocity); ionizing system (including self-balancing power supply); petcocks for vacuum, DI water, or gas; electropolished stainless steel surfaces; special paint; special voltage and frequency
Minihelic® is a registered trademark of Dwyer Instruments incorporated
Long Running FFU Motors
Terra’s filter fan unit motors are rated for 5 years of continuous, 24/7 operation, if the HEPA filters are consistently replaced. To accurately monitor your HEPA filter’s saturation levels, purchase Terra’s audible and visual filter replacement alarm system.
Horizontal Laminar Flow Station Airflow Diagram
Multi-speed filter/blower modules provide a continuous wash of HEPA-filtered air for process protection. Internal baffling plates and diffuser panel ensures uniform air speed across work area; make-up air return slots minimize edge turbulence and extend filter life.
Air Return Ducts
For enhanced air-stream control, the flow station features return ducts along the edges of the hood opening. These ducts reduce backwash caused by placing objects near the work surface edge, a common source of turbulence inside a clean bench.
Simple User Interface
Operator controls include the ON/OFF switches, blower speed controls, and a Minihelic™ backpressure gauge for monitoring the load on the HEPA filter. When the backpressure roughly doubles from the initial readings, the filter needs replacing.
GFCI Duplex Outlet for Operational Convenience
A GFCI power receptacle is installed on the right-hand side of the hood interior for operational convenience. GFCI outlets help prevent electric shock and damage to your electrical devices. Alternate mounting locations can be specified at time of order.
HEPA Filter Access Panels
For horizontal laminar flow hoods, the rear vent panel can be easily removed to access the HEPA filters.
Status Indicator Light
The Terra Universal logo incorporates an LED light that functions as a status indicator. The TUI logo will flash when the unit is connected to power, but the blower is switched off. A solid glow indicates the station is fully operational.
Clean and Durable Powder Coat Finish
Terra’s signature white powder coat finish provides a high quality, durable barrier to protect against corrosion, plus a clean and attractive aesthetic. The advanced heat-fused formulation exceeds ASTM and ISO paint standards to resist chipping, scratching, fading, and wearing.
WhisperFlow Quiet Operation Reduces Distracting Background Noise
Exposure to loud noises can lower the ability to focus on work and listen selectively, which may also lead to safety issues. Typical AC units can be annoyingly loud, measuring in the range of 70 dB (comparable to a vacuum cleaner). Terra’s WhisperFlow design produces far lower noise levels for a quiet environment comparable to a library. At 90 ft/min output, units measure under 50 dB from only 1 ft away (roughly 75% quieter than 70dB).
Highest Standards For Electronic Components
Terra’s electronic components are designed and built to the highest standards required by defense and semiconductor industries for long-term reliability and protection against damage, injuries, and electrical hazards.
Continuous Product Improvement
At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.
Long-Term Customers
Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers
Complete Project Transparency
Terra is dedicated to complete transparency on project status, shipment tracking, and installation scheduling
Vertical Laminar Flow Clean Bench with Automatic Height Adjusting Table
Automatic height adjusting tables fit perfectly inside free-standing laminar flow clean benches. The separate workstation helps isolate vibration from the fans mounted above the hood. Dual motor electric height adjusting columns beneath the table allow users to quickly raise or lower the work surface without moving equipment off the table.
Available Accessories
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
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UV Germicidal Lamp
The V-Ray germicidal UV lamp is installed within a Terra hood to inhibit microbial growth on the work surface -
Utility Valves
Ball valves (petcocks) are available for utilities such as nitrogen, compressed air, vacuum, DI water, or other process gases. Valves are composed of chrome-plated steel or ABS plastic. -
Static-Neutralizing Ionizing Bar
Airflow from the blower distributes positive and negative ions onto the surfaces below, neutralizing static charges that can lead to electro-static discharge and attract particles. -
Lighthouse Handheld Airborne Particle Counters
Lightouse portfolio of handheld airborne particle counters ensure accurate readings of cleanrooms and critical environments -
Work Station Drawers
Available in ABS plastic or stainless steel, these cleanroom-compatible drawers come in a number of sizes and drawer configurations (6” top drawer and 6” bottom drawer shown). -
Replacement HEPA or ULPA Filters
Choice of HEPA (rated 99.99% efficient @ 0.3 µm particles) or ULPA (rated 99.999% efficient @ 0.12 µm particles) -
Explosion-Proof Power Switches
UL-rated explosion-proof switches are connected to the lights and blowers using specialized conduit with potted fittings. All electrical components are sealed to eliminate potential ignition points.
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Manuals & Resources
Manuals & Resources
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