Horizontal Laminar Airflow Bench

Horizontal Laminar Airflow Bench (HLAF)

CRESCENDO make Horizontal Laminar Airflow Benches are designed to provide Class 100 workstations for creation of a bacterial dust free air space.

HLAFs are used for work with low risk substances and materials, when protection of working material from environment is necessary or the item requires a sterile working zone.

• SS 304 / CRCA powder coated construction except Filters and motor-blower assemblies which will be in standard execution.
• Conventional Hepa Filter for supply which confirms to EU 12 Grade with an efficiency rating better than 99.97% for 0.3 µ. Also, Minipleat HEPA Filter with hot melt technology, which conforms to EU 13 Grade, with an efficiency rating better than 99.99% for 0.3 µ at supply position can be used.
• Primary Pre filters for suction which confirms to EU 6 Grade with an efficiency rating better than 95% down to 5µ made from micro fiber glass washable media.
• Motor, Blower provided are statically and dynamically balanced to supply air flow with sufficient capacity and static pressure for entire life of HEPA. Blower is high performance, noise abated and light weighted.
• Magnehelic Differential Pressure Gauge (0 - 25 mm or 0-50 mm) to monitor pressure drop across HEPA Filter.
• Provision for Gas cock and Vacuum cock as per requirement.
• Fluorescent Light (250 Lux).
• ON/OFF Switches for motor & lights.
• 5/15 Amp single-phase switch socket for external equipment.
• DOP Test port at upstream of HEPA filter. Hour Meter to personnel fr carrying out the HEPA Filter Integrity Test.

• Client to ensure that floor is properly leveled; so that the equipment is installed with covings flush with the floor to avoid any gap.
• The unit will be provided with 3 mtr. Long cable. In case of wall mounted or remotely located control panel, provision of any electrical cabling required from unit to control panel & control panel to the ON / OFF switch will be in Client's scope.
• Client to confirm the location of supply pendant to enable us to decide on the entry of main cable in the unit to avoid any loose from projecting out.
• Concealing of electrical cabling (if so required ) is in Client's scope.
• Client to provide facility of 20 psig compressed air / nitrogen cylinder any compressed gas not harmful to personnel for carrying out the HEPA Filter Integrity Test.

• HEPA Filter Integrity Test
• Particle Count Test
• Air Velocity Measurement Test
• Smoke Profile Test (Video Shooting/ Photography to be arranged by client )

Air cleanliness : ISO Class 5

Air Velocities : 90 ± 10 FPM

Air Flow : Horizontal

Noise Level : Less than 65 dB when Ambient is not greater than 55 dB

Vibration Level : Minimum

Power Supply : 230 V AC 1-Ø 50HZ