Industrial Pneumatic blower fan UAE SAUDI QATAR

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Industrial Pneumatic blower fan UAE SAUDI QATAR

Industrial Pneumatic blower fan UAE SAUDI QATAR

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Dynaweld Pneumatic Jet Fans DY20 DY24 Dubai UAE
Dynaweld — DY20 · DY24 · Cast Aluminium T6 · 40–150 PSI · Compressed Air Driven

Dynaweld Pneumatic Jet Fans

Four-blade cast aluminium pneumatic jet fans for general ventilation and confined space exhaust — driven purely by compressed air with no electrical components. Up to 16,136 CFM free flow at 100 PSI. T6 aircraft-grade aluminium castings, precision-balanced blades, guide vanes, and smooth inlet bell for maximum airflow and efficiency.

✓ Up to 16,136 CFM ✓ Compressed Air Driven ✓ No Electrical Components ✓ T6 Aircraft Aluminium ✓ 4-Blade Precision Balanced ✓ Guide Vanes — Axial Flow ✓ 40–150 PSI ✓ DY20 (24.5") · DY24 (31.25")
1

Model Overview — DY20 vs DY24

DY20

24.5" Diameter · 3/4" NPT Air Inlet
Diameter24.5" (62 cm)
Weight44 kg (96 lbs)
Air Inlet3/4" NPT (19 mm)
Min Hose Size1" (25 mm)
Max Pressure150 PSI / 10 BAR
Depth12" (31 cm)
Bolt Circle Dia.20" (51 cm)
Max CFM @ 100 PSI10,420 CFM
Max M³/Hr @ 100 PSI17,704 M³/Hr

DY24

31.25" Diameter · 1" NPT Air Inlet
Diameter31.25" (79 cm)
Weight59 kg (131 lbs)
Air Inlet1" NPT (25 mm)
Min Hose Size1" (25 mm)
Max Pressure150 PSI / 10 BAR
Depth12" (31 cm)
Bolt Circle Dia.27.5"–30.25" (70–77 cm)
Max CFM @ 100 PSI16,136 CFM
Max M³/Hr @ 100 PSI27,415 M³/Hr
2

Performance Data — Full Tables

DY20 — Air Flow, Consumption & Noise vs Pressure

Air Pressure (PSI/BAR) Free Flow CFM Free Flow M³/Hr Air Consumed CFM Air Consumed M³/Hr RPM Noise (dB @ 5 ft)
40 PSI / 2.75 BAR 5,920 10,058 60 102 2,080 88 dB
60 PSI / 4.14 BAR 7,600 12,912 114 194 2,695 94 dB
80 PSI / 5.52 BAR 9,100 15,461 186 316 3,225 99 dB
100 PSI / 6.89 BAR 10,420 17,704 292 496 3,670 108 dB

DY24 — Air Flow, Consumption & Noise vs Pressure

Air Pressure (PSI/BAR) Free Flow CFM Free Flow M³/Hr Air Consumed CFM Air Consumed M³/Hr RPM Noise (dB @ 5 ft)
40 PSI / 2.75 BAR 8,104 13,769 76 129 1,565 92 dB
60 PSI / 4.14 BAR 11,005 18,698 147 250 2,053 95 dB
80 PSI / 5.52 BAR 12,848 21,829 225 382 2,570 100 dB
100 PSI / 6.89 BAR 16,136 27,415 338 574 3,138 112 dB
DY20: Up to 10,420 CFM
DY24: Up to 16,136 CFM
40–150 PSI Operating Range
No Electrical Components
T6 Aircraft Aluminium
Precision Balanced 4-Blade
Guide Vanes — Axial Flow
Stainless Steel Fan Guards
Smooth Inlet Bell
3

Key Features & Engineering

✈️

Why It's Called a Jet Fan

High-velocity compressed air jets are ejected from the trailing edge of the fan blades — driving blade rotation just like jet exhaust propels an aircraft. The shaft transmits zero torque to the blade; only the air jets on the trailing edge drive the fan. This unique design eliminates shaft loading, reduces bearing stress, and is why these fans (sometimes called "Coppus Blowers") deliver exceptional performance.

🔩

T6 Aircraft Aluminium Castings

All castings are heat-treated to T6 aircraft aluminium specification — the same standard used in aerospace structures. This provides maximum strength-to-weight ratio, excellent corrosion resistance, and significantly reduces static electricity buildup versus plastic fan housings — important for operation in flammable atmosphere locations.

⚖️

Precision Balanced Fan Blades

All four fan blades are precision balanced — eliminating vibration, reducing bearing wear, and extending service life. The hub and four-blade configuration produces adequate static pressure to overcome the resistance of the system being ventilated — essential for pushing air through long flexible ducts into deep tank or vessel spaces.

🌀

Guide Vanes — Smooth Axial Flow

The housing is equipped with guide vanes that neutralise the rotational spin of air leaving the fan blades and redirect it into a straight axial direction. This significantly increases fan efficiency, reduces turbulence losses, and improves performance through ducting compared to fans without guide vanes.

🔔

Smooth Inlet Bell — High CFM, Low Noise

The smooth inlet bell profile accelerates incoming air smoothly into the fan without turbulence-inducing sharp edges — increasing volumetric efficiency (CFM) and reducing noise levels. Directly contributes to the higher CFM output of Dynaweld fans compared to flat-face housings.

Electro Polished Stainless Steel Guards

Fan guards are electro polished stainless steel — corrosion-resistant, easy to clean, and compliant with the highest duty standards for industrial ventilation equipment. The heavy-duty construction makes Dynaweld Jet Fans the heaviest-duty fans in their class — built for continuous industrial use in demanding environments across the Middle East and Africa.

4

Applications

Application Detail
Confined Space Ventilation Ventilation of tanks, process vessels, columns, reactors, and pressure vessels before and during confined space entry for maintenance and inspection at oil & gas and petrochemical facilities across UAE (ADNOC), Saudi Arabia (Aramco), Qatar (QatarEnergy), and Iraq
Welding Fume Exhaust Continuous fume extraction during welding, grinding, and cutting operations inside tanks, vessels, and enclosed structures — DY20 and DY24 deliver the high air volumes needed to maintain safe atmospheric conditions during active hot work
Sand Blasting Operations Continuous dust and blast media exhaust during internal sandblasting of tanks, columns, and vessel internals during surface preparation for re-coating and lining — minimising visibility impairment and atmospheric hazards
Cargo Hold Ventilation DY24 particularly suited for large cargo hold ventilation on bulk carriers, tankers, and offshore supply vessels during loading, unloading, and maintenance operations in UAE, South Africa, and Nigeria shipyards
General Industrial Ventilation Cooling and fresh air supply to any industrial location with available compressed air — process buildings, transformer bays, substation rooms, motor rooms, and enclosed workspaces across GCC and Africa without electrical power connections
Foundries & Sand Blasting Fume and dust extraction from foundry casting operations, sand blasting, and shot peening enclosures — where the volume and temperature of fumes rule out electric motors
5

Frequently Asked Questions

Why is it called a "jet fan" and how does it work?
Dynaweld Jet Fans are driven by high-velocity compressed air jets ejected from the trailing edge of the fan blades — exactly like a jet engine where rear exhaust propels the aircraft forward. The shaft transmits no torque; only the air jets drive blade rotation. This means shaft bearing loads are far lower than conventional motor-driven fans. Only the shaft, bearings, and fan blade rotate — the compressed air does all the work. Sometimes called "Coppus Blowers" after an early manufacturer of this fan type.
What is the difference between the DY20 and DY24?
The DY20 is 24.5 inches diameter (44 kg) with a 3/4" NPT air inlet and delivers up to 10,420 CFM at 100 PSI. The DY24 is larger at 31.25 inches diameter (59 kg) with a 1" NPT inlet and delivers up to 16,136 CFM at 100 PSI — 55% more airflow. Both share the same 150 PSI maximum pressure and 12 inch depth. Choose DY24 for larger vessels, higher air change requirements, or longer duct runs requiring more static pressure.
Are Dynaweld Jet Fans safe for hazardous areas with flammable atmospheres?
Yes. Dynaweld Pneumatic Jet Fans have no electrical motor, no electrical components, and no electrical ignition sources. The T6 aircraft aluminium castings significantly reduce static electricity risk compared to plastic fans. They are suitable for hazardous locations including confined spaces with flammable gas or vapour atmospheres, where electric fans are prohibited by safety regulations across oil & gas, petrochemical, and marine operations throughout the Middle East and Africa.
How can I get pricing for Dynaweld Jet Fans in UAE, Saudi Arabia, Qatar or Africa?
Contact us via WhatsApp with your required model (DY20 or DY24), quantity, and application.

📲 WHATSAPP FOR BEST PRICING — +971 55 697 6535
View Our Global Service Network (MENA & Africa)
UAE & QatarDubai, Abu Dhabi (UAE).
Doha, Ras Laffan (Qatar).
Saudi ArabiaRiyadh · Jeddah · Dammam.
Khobar · Jubail · Yanbu.
GCCMuscat (Oman).
Kuwait City (Kuwait).
Manama (Bahrain).
Iraq & LevantBaghdad · Basra · Erbil (Iraq).
Amman (Jordan).
North AfricaCairo, Alexandria (Egypt).
Algiers · Casablanca.
West & East AfricaLagos · Abuja (Nigeria).
Nairobi (Kenya) · Dar es Salaam (Tanzania).
Accra (Ghana) · Uganda.
Southern AfricaJohannesburg · Cape Town (South Africa).

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