Dynaweld Pneumatic Blower Jet Fan Dubai UAE
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Dynaweld Pneumatic Blower Jet Fan Dubai UAE
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Dynaweld — Models DY20 & DY24 · Also Known as Coppus Blowers
Dynaweld Pneumatic Jet Fan
Air-powered confined space ventilation fan — no electricity required. Operates on compressed air at 40–110 PSI. Engineered for tank ventilation, process vessel purging, welding fume extraction, and sandblasting exhaust across industrial and offshore applications in the Middle East and Africa.
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Product Overview
⚠ Confined Space & Hazardous Area Safe: The Dynaweld pneumatic jet fan is entirely air-powered — no electric motor, no spark risk. Suitable for use in potentially explosive atmospheres, gas-contaminated spaces, and ATEX/hazardous area classified locations where electric fans cannot be used.
What It Is
The Dynaweld Pneumatic Jet Fan (also known as a Coppus blower or compressed air fan) is a four-bladed ventilation fan powered entirely by compressed air. Compressed air is ejected at high velocity from jets on the trailing edge of two of the four blades, driving the fan in rotation — like a jet engine — and moving large volumes of air for ventilation or extraction. No electrical connection of any kind is required.
Who Uses It
Specified by HSE officers, confined space supervisors, safety engineers, and industrial hygienists. Commonly procured by oil & gas operators, petrochemical contractors, shipyard teams, tank cleaning contractors, pipeline operators, and maintenance teams across the UAE, Saudi Arabia (Aramco, SABIC), Iraq (Basra), Qatar, Kuwait, Nigeria (NNPCL), Kenya, and South Africa.
Where It Is Used
Designed for ventilation of tanks, process vessels, manholes, confined spaces, ship holds, and enclosed work areas where hazardous fumes from welding, sandblasting, painting, or gas accumulation must be removed before or during entry. Also suitable for general ventilation in any location where compressed air is available but electrical power is unavailable or restricted.
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Model Comparison — DY20 vs DY24
DY20
20-Inch Pneumatic Jet Fan
20"
Diameter24.5" (62 cm)
Depth12" (31 cm)
Weight96 lbs / 44 kg
Box Weight104 lbs / 47 kg
Air Inlet3/4" NPT (19 mm)
Min. Hose Size1" (25 mm)
Max. Pressure150 PSI / 10 BAR
Bolt Circle Dia.20" (51 cm)
Mounting Slot1" (25 mm)
Max Airflow @100 PSI10,420 CFM / 17,704 m³/hr
DY24
24-Inch Pneumatic Jet Fan
24"
Diameter31.25" (79 cm)
Depth12" (31 cm)
Weight131 lbs / 59 kg
Box Weight143 lbs / 65 kg
Air Inlet1" NPT (25 mm)
Min. Hose Size1" (25 mm)
Max. Pressure150 PSI / 10 BAR
Bolt Circle Dia.27.5"–30.25" (70–77 cm)
Mounting Slot1" (25 mm)
Max Airflow @100 PSI16,136 CFM / 27,415 m³/hr
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Performance Data
DY20 — Performance at Various Operating Pressures
| Compressed Air Pressure | Free Flow Airflow (CFM) | Free Flow Airflow (m³/hr) | Air Consumption (CFM) | Air Consumption (m³/hr) | RPM | Noise @ 5ft (dB) |
|---|---|---|---|---|---|---|
| 40 PSI / 2.75 BAR | 5,920 | 10,058 | 60 | 102 | 2,080 | 88 |
| 60 PSI / 4.14 BAR | 7,600 | 12,912 | 114 | 194 | 2,695 | 94 |
| 80 PSI / 5.52 BAR | 9,100 | 15,461 | 186 | 316 | 3,225 | 99 |
| 100 PSI / 6.89 BAR | 10,420 | 17,704 | 292 | 496 | 3,670 | 108 |
DY24 — Performance at Various Operating Pressures
| Compressed Air Pressure | Free Flow Airflow (CFM) | Free Flow Airflow (m³/hr) | Air Consumption (CFM) | Air Consumption (m³/hr) | RPM | Noise @ 5ft (dB) |
|---|---|---|---|---|---|---|
| 40 PSI / 2.75 BAR | 8,104 | 13,769 | 76 | 129 | 1,565 | 92 |
| 60 PSI / 4.14 BAR | 11,005 | 18,698 | 147 | 250 | 2,053 | 95 |
| 80 PSI / 5.52 BAR | 12,848 | 21,829 | 225 | 382 | 2,570 | 100 |
| 100 PSI / 6.89 BAR | 16,136 | 27,415 | 338 | 574 | 3,138 | 112 |
Physical Specifications — Both Models
| Specification | DY20 | DY24 |
|---|---|---|
| Fan Diameter | 24.5" (62 cm) | 31.25" (79 cm) |
| Depth | 12" (31 cm) | 12" (31 cm) |
| Net Weight | 96 lbs (44 kg) | 131 lbs (59 kg) |
| Shipping Weight | 104 lbs (47 kg) | 143 lbs (65 kg) |
| Air Inlet Connection | 3/4" NPT | 1" NPT |
| Minimum Hose Size | 1" (25 mm) | 1" (25 mm) |
| Maximum Pressure | 150 PSI / 10 BAR | 150 PSI / 10 BAR |
| Rated Operating Pressure | 40–110 PSI (2.75–7.58 BAR) | |
| Mounting Slot Width | 1" (25 mm) | 1" (25 mm) |
| Bolt Circle Diameter | 20" (51 cm) | 27.5"–30.25" (70–77 cm) |
| Housing Material | Cast aluminium — heat treated to T6 aircraft specifications | |
| Fan Blades | Cast aluminium, precision balanced, 4-blade design (2 blades with jet outlets) | |
| Fan Guards | Electro-polished stainless steel | |
| Bearing Lubrication | Hi-tech synthetic lubricant — packed for longer service life | |
| Air Seal | Super-duty high-pressure air seal | |
No Electricity Required
T6 Aircraft Aluminium Housing
40–150 PSI Rated
Blower & Exhauster Use
Electro-Polished SS Guards
Precision Balanced Blades
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Key Features & Benefits
| Feature | Benefit |
|---|---|
| No Electrical Power Required | Operates entirely on compressed air — inherently safe for use in explosive atmospheres, ATEX zones, H₂S environments, and confined spaces where electric equipment is prohibited. Critical for oil & gas tank farms, petrochemical vessels, and ship holds across UAE, Saudi Arabia, Iraq, and Nigeria |
| Blower or Exhauster Operation | Reversible air flow direction by rotating the fan unit — one tool serves both supply air (blower) and extract air (exhauster) applications, reducing equipment inventory |
| 4-Blade Jet Design | Two of four blades have air jet outlets; all four have airfoil cross sections — delivers higher airflow at lower RPM compared to conventional pneumatic fans, reducing noise and wear |
| T6 Aircraft Aluminium Casting | Heat-treated to T6 specification — superior strength-to-weight ratio, corrosion resistance, and durability in the hot, humid, and often corrosive environments found across the Gulf and equatorial Africa |
| Electro-Polished SS Fan Guards | Corrosion-resistant stainless steel guards protect blades from damage and personnel from contact — maintains hygiene and structural integrity in marine, offshore, and chemical plant environments |
| Guide Vanes | Integral guide vanes neutralise air spin and redirect airflow into a smooth axial direction — eliminating turbulence, increasing ventilation efficiency, and reducing system backpressure |
| Smooth Inlet Bell | Machined inlet bell increases CFM throughput, improves aerodynamic efficiency, and reduces noise levels — important for prolonged confined space entry operations |
| Synthetic Lubricant Bearings | Hi-tech synthetic lubricant packed bearings deliver longer service intervals — reduces maintenance frequency and downtime on field operations and remote site ventilation tasks |
| High-Pressure Air Seal | Super-duty air seal rated for sustained high-pressure operation — prevents air leakage, maintains performance, and extends service life in continuous industrial use |
| Shaft with No Torque Transmission | The shaft does not transmit power to the blade — air jets drive rotation directly. This eliminates shaft torque stress, a common failure point in conventional pneumatic fans |
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Applications by Industry
| Industry | Application |
|---|---|
| Oil & Gas — Upstream | Pre-entry purging and ventilation of storage tanks, process vessels, separators, and wellhead enclosures before confined space entry — critical for operations across UAE (ADNOC), Saudi Arabia (Aramco), Iraq (Basra), and Nigeria (NNPCL) |
| Petrochemical & Refining | Fume extraction during welding, cutting, and hot work inside confined process vessels and reactors in refineries across Dammam, Jeddah, Ruwais, and Lagos |
| Offshore Platforms | Ventilation of enclosed deck spaces, pipe racks, caissons, and below-deck confined areas — air-powered operation is mandatory where electrical equipment is prohibited |
| Marine & Shipbuilding | Tank ventilation, hold purging, and fume extraction during ship repair and new-build construction in dry docks across UAE, South Africa (Cape Town), Ghana, and Nigeria |
| Pipeline & Subsea | Ventilation of pipeline pig traps, valve pits, metering stations, and pipeline inspection trenches before entry and during maintenance operations |
| Sandblasting Operations | Extraction of abrasive dust and contaminated air from enclosed sandblasting bays, surface preparation tanks, and confined cleaning operations |
| Welding & Fabrication | Fume and smoke extraction during TIG, MIG, and arc welding inside tanks, vessels, and enclosed fabrication areas — suitable for use alongside welding operations where compressed air is already present |
| Water & Wastewater | Ventilation of manholes, pump sumps, wet wells, and underground utility chambers before and during confined space entry for maintenance teams in Egypt, Kenya, Tanzania, and South Africa |
| Mining | Underground ventilation and fume clearance in mining operations across South Africa, Ghana, and Kenya — suitable for areas with no electrical supply |
| Construction | General ventilation of tunnels, underground works, and enclosed construction spaces where temporary compressed air is available |
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Spare Parts List — DY-JF24
All spare parts are available for order. Contact us via WhatsApp with your part number and quantity required.
DY-JF 01 2001 Jet Fan Housing
DY-JF 01 2012 Key
DY-JF 01 2002 Nozzle Jet Prop
DY-JF 01 2013 Lock
DY-JF 01 2003 Inlet / Outlet Cap
DY-JF 01 2014 Hex Cap Screw 6×30
DY-JF 01 2004 Fan Guard
DY-JF 01 2015 Lock Washer
DY-JF 01 2005 Bearing
DY-JF 01 2016 Flat Washer
DY-JF 01 2005 Air Seal
DY-JF 01 2017 Hex Nut
DY-JF 01 2007 Sleeve
DY-JF 01 2018 Socket Screw 8×30
DY-JF 01 2008 Ring
DY-JF 01 20019 Cap Gasket
DY-JF 01 2009 Small Ring
DY-JF 01 2010 Locking Bear Hug
DY-JF 01 2011 Shaft
— All parts available on request
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Frequently Asked Questions
What is a pneumatic jet fan and how does it work?
A pneumatic jet fan (also referred to as a Coppus blower or compressed air ventilation fan) is powered entirely by compressed air — no electricity is needed at any point. Compressed air enters the fan housing and is ejected at high velocity from jets positioned on the trailing edge of two of the four fan blades. This drives the blades forward in rotation — in exactly the same way that a jet aircraft engine is propelled by high-velocity exhaust gas. The rotating blades then draw in and move large volumes of air through the housing for ventilation. The Dynaweld jet fan operates between 40 and 110 PSI and can function as either a blower (pushing air in) or an exhauster (extracting air out).
What is the difference between the DY20 and DY24 models?
The DY20 is a 20-inch fan with a 24.5-inch diameter housing, weighing 96 lbs (44 kg). At 100 PSI it delivers up to 10,420 CFM (17,704 m³/hr) of free flow airflow. The DY24 is a larger 24-inch fan with a 31.25-inch diameter housing, weighing 131 lbs (59 kg). At 100 PSI it delivers up to 16,136 CFM (27,415 m³/hr) — approximately 55% more airflow than the DY20. The DY24 uses a 1" NPT air inlet versus 3/4" NPT on the DY20. Both models share the same 1-inch minimum hose size and 150 PSI maximum pressure rating. The DY24 is preferred for larger vessels and spaces requiring rapid purge times.
Is the Dynaweld jet fan safe for use in explosive or gas-contaminated environments?
Yes. Because the Dynaweld jet fan contains no electrical components, motors, or wiring of any kind, it does not present an ignition risk in flammable or explosive atmospheres. This makes it inherently suitable for use in environments where electrical equipment is not permitted — including H₂S gas environments, hydrocarbon vapour-contaminated vessels, explosive dust atmospheres, and ATEX-classified zones. It is widely used across oil & gas, petrochemical, and marine industries in the Middle East and Africa for exactly this reason.
What compressed air supply pressure and hose size does the Dynaweld jet fan require?
The Dynaweld jet fan has a rated operating pressure range of 40 to 110 PSI (2.75 to 7.58 bar) and a maximum pressure rating of 150 PSI (10 bar). Both DY20 and DY24 models require a minimum 1-inch (25mm) air supply hose. The DY20 air inlet is 3/4" NPT and the DY24 inlet is 1" NPT. Higher operating pressure delivers significantly greater airflow — at 100 PSI the DY24 moves 27,415 m³/hr versus 13,769 m³/hr at 40 PSI.
How can I get pricing for the Dynaweld jet fan in UAE, Saudi Arabia, Iraq or Africa?
Global Hardware & Tools LLC supplies Dynaweld pneumatic jet fans and spare parts across the Middle East — UAE (Dubai, Abu Dhabi), Saudi Arabia (Riyadh, Jeddah, Dammam), Qatar (Doha), Oman (Muscat), Kuwait, and Iraq (Baghdad, Basra) — and across Africa including Nigeria (Lagos), Kenya (Nairobi), South Africa (Johannesburg), Ghana (Accra), Egypt (Cairo), Tanzania, and Uganda.
For pricing on DY20, DY24, or spare parts:
📲 WHATSAPP FOR BEST PRICING — +971 55 983 6563
For pricing on DY20, DY24, or spare parts:
📲 WHATSAPP FOR BEST PRICING — +971 55 983 6563
View Our Global Service Network (MENA & Africa)
UAE & GCC
Dubai, Abu Dhabi (UAE).
Riyadh, Jeddah, Dammam, Mecca, Medina (Saudi Arabia).
Doha (Qatar) · Muscat (Oman) · Kuwait City · Bahrain.
Riyadh, Jeddah, Dammam, Mecca, Medina (Saudi Arabia).
Doha (Qatar) · Muscat (Oman) · Kuwait City · Bahrain.
Iraq & Levant
Baghdad, Basra, Erbil (Iraq).
Amman (Jordan).
Amman (Jordan).
North Africa
Cairo, Alexandria (Egypt).
Algiers (Algeria).
Casablanca (Morocco).
Algiers (Algeria).
Casablanca (Morocco).
West & East Africa
Lagos, Abuja (Nigeria).
Nairobi (Kenya).
Dar es Salaam (Tanzania).
Accra (Ghana) · Uganda.
Nairobi (Kenya).
Dar es Salaam (Tanzania).
Accra (Ghana) · Uganda.
Southern Africa
Johannesburg, Cape Town (South Africa).
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