High-temperature air amplifier Model 121021

stainless steelfor venting and exhaust

Description
High Temperature Air Amplifiers are rated to 700°F (374°C) and designed to circulate air in hot environments such as ovens, furnaces and large molds. Using the Coanda effect, these amplifiers entrain large volumes of ambient air with a small amount of compressed air to generate high-volume, high-velocity outlet flows through a fixed air gap. They operate quietly and provide high flow amplification, producing output flows up to 25 times the compressed air consumption.

Applications

• Vent welding smoke
• Cool hot parts
• Dry wet parts
• Clean machined parts
• Distribute heat in ovens and molds
• Ventilate confined areas
• Dust collection
• Exhaust tank fumes

Advantages
Compared to Fans:

• Compact, lightweight and portable
• No electricity required
• No moving parts — minimal maintenance
• Ends are easily ducted
• Instant on/off
• Variable force and flow
• No RF interference

Compared to Venturies and Ejectors:

• More air with lower compressed air consumption
• Higher flow amplification
• No internal obstructions
• Meets OSHA pressure and noise requirements
• Quiet operation

Systems / Model Types
Super Air Amplifier systems include: Super Air Amplifier only; Super Air Amplifier Kits (amplifier, shim set, filter separator and pressure regulator with coupler); Deluxe Super Air Amplifier Kits (EFC, shim set, filter separator and pressure regulator with coupler); Super Air Amplifier shim sets (stainless steel shims).

Model / Outlet
Model: High Temperature Air Amplifier Only | Outlet Diameter: 1-1/4" (32 mm)
High Temperature Air Amplifier Only — 121021
High Temperature Air Amplifier Kit — 121221
Deluxe High Temperature Air Amplifier Kit — 121221DX
Super Air Amplifier Shim Set — 120321

Performance (80 PSIG / 5.5 BAR)
Model 121021 performance (tested with 0.003" / 0.08 mm shim): Air consumption 8.1 SCFM (229 SLPM); Amplification ratio 18; Air volume at outlet 146 SCFM (4,132 SLPM); Air volume at 6" (152 mm) 436 SCFM (12,339 SLPM); Sound level 72 dBA.

Dimensions (Model 121021)
A: 0.84 in (21 mm)
B: 0.94 in (24 mm)
C: 1.50 in (38 mm)
D: 2.40 in (61 mm)
E: 3.03 in (77 mm)
F: 0.27 in (7 mm)
G: 0.21 in (5 mm)
H: 0.75 in (19 mm)
J: 1.22 in (31 mm)
K: 2.88 in (73 mm)
L: 0.59 in (15 mm)
M: NPT 1/4"

Airflow Pattern
Airflow pattern dimensions (Model 121021): A: 2 in (51 mm); B: 2.9 in (74 mm); C: 4.7 in (119 mm); D: 6.5 in (165 mm).

How It Works
Compressed air flows through the inlet into an annular chamber and is throttled through a small ring nozzle at high velocity. The primary airstream adheres to the Coanda profile directing it toward the outlet, creating a low-pressure center that induces a high-volume entrainment of surrounding air. The combined flow exhausts as a high-volume, high-velocity outlet flow.

Specifications / Technical data

• Model (SKU): 121021
• Designation: High Temperature Air Amplifier
• Material: Stainless steel (St. St.)
• Rated temperature: up to 700°F (374°C)
• Outlet diameter: 1-1/4" (32 mm)
• Air consumption (at 80 PSIG): 8.1 SCFM (229 SLPM)
• Amplification ratio (at 80 PSIG): 18
• Air volume at outlet (at 80 PSIG): 146 SCFM (4,132 SLPM)
• Air volume at 6" (152 mm): 436 SCFM (12,339 SLPM)
• Sound level (at 80 PSIG): 72 dBA
• Test shim for performance: 0.003" (0.08 mm)
• Connection: 1/4" NPT
• Typical applications: venting welding smoke, cooling hot parts, drying, distributing heat in ovens/molds, ventilating confined areas, dust collection, exhausting tank fumes