Dynaweld Venturi Blower Dubai UAE
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Dynaweld Venturi Blower Dubai UAE
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Dynaweld — Models DY2 · DY4 · DY6 · DY8 · No Moving Parts
Dynaweld Venturi Blowers
Compressed air or steam powered ventilation blowers with absolutely no moving parts. Operates on the Venturi principle — moving large volumes of air from a small compressed air or steam input. Engineered for confined space ventilation, tank purging, process vessel exhaust, and hazardous atmospheric locations across the Middle East and Africa.
1
Product Overview
⚙ How the Venturi Principle Works
1
Compressed air or dry steam enters a concentric manifold chamber surrounding a Venturi throat inside the blower housing.
2
A series of symmetrically arranged orifices around the chamber expand the air or steam at high velocity into the reaction zone downstream of the throat.
3
The high velocity air or steam imparts its energy to slower-moving ambient air, accelerating it and drawing more air through the throat into the reaction zone.
4
A conical diffuser controls the direction and expansion rate of the accelerated air — delivering a high-volume, directional airflow with no rotating parts at any stage.
What It Is
The Dynaweld Venturi Blower is a no-moving-parts ventilation device powered by compressed air or dry saturated steam. Using the Venturi principle, it converts a small input of high-velocity air or steam into a large volume of airflow — suitable for supplying fresh air into or exhausting contaminated air from confined spaces, tanks, vessels, and enclosed work areas.
Who Uses It
Specified by HSE engineers, confined space supervisors, process engineers, and safety managers in oil & gas, petrochemical, marine, shipbuilding, foundry, and construction industries. Procured by operations teams across the UAE (ADNOC), Saudi Arabia (Aramco, SABIC), Iraq (Basra), Qatar, Kuwait, Nigeria (NNPCL), Kenya, and South Africa for confined space and process safety applications.
Where It Is Used
Designed for tanks, towers, refineries, process plants, pressure vessels, cooling and drying applications, foundries, sandblasting operations, shipyards, manholes, cargo holds, and all confined work areas. Capable of moving large volumes of air through long duct runs. Suitable for hazardous atmospheric locations where electrical equipment is prohibited.
2
Model Range — DY2, DY4, DY6, DY8
DY2
COMPACT
Overall Length28"
Base Diameter7.25"
Horn Diameter6.25"
Thread (NPT)1/2"
Net Weight5.5 lbs
Max Airflow @100 PSI1,205 CFM
DY4
STANDARD
Overall Length33.25"
Base Diameter7.25"
Horn Diameter7.34"
Thread (NPT)1/2"
Net Weight8.5 lbs
Max Airflow @100 PSI1,465 CFM
DY6
HEAVY DUTY
Overall Length44.5"
Base Diameter11.5"
Horn Diameter12"
Thread (NPT)1"
Net Weight22.3 lbs
Max Airflow @100 PSI3,700 CFM
DY8
MAX CAPACITY
Overall Length46"
Base Diameter17.25"
Horn Diameter14"
Thread (NPT)1"
Net Weight36.0 lbs
Max Airflow @100 PSI5,435 CFM
3
Technical Specifications
Blower Dimensions — All Models
| Model | Length (A) | Base Dia. (B) | Horn Dia. (C) | Thread NPT (D) | Bolt Circle (E) | Slot Dia. (F) | Net Weight |
|---|---|---|---|---|---|---|---|
| DY2 | 28" | 7.25" | 6.25" | 1/2" | 6" | 0.4" (3 slots) | 5.5 lbs |
| DY4 | 33.25" | 7.25" | 7.34" | 1/2" | 6.56" | 0.4" (3 slots) | 8.5 lbs |
| DY6 | 44.5" | 11.5" | 12" | 1" | 10.50" | 0.4" (3 slots) | 22.3 lbs |
| DY8 | 46" | 17.25" | 14" | 1" | 13.62" | 0.5" (4 slots) | 36.0 lbs |
Air Consumption (SCFM) at Operating Pressures
| Model | 60 PSIG | 80 PSIG | 100 PSIG |
|---|---|---|---|
| DY2 | 30 SCFM | 40 SCFM | 50 SCFM |
| DY4 | 30 SCFM | 40 SCFM | 50 SCFM |
| DY6 | 60 SCFM | 80 SCFM | 100 SCFM |
| DY8 | 110 SCFM | 140 SCFM | 180 SCFM |
Total Airflow (CFM) at Operating Pressures
| Model | 60 PSIG | 80 PSIG | 100 PSIG |
|---|---|---|---|
| DY2 | 865 CFM | 1,080 CFM | 1,205 CFM |
| DY4 | 1,135 CFM | 1,310 CFM | 1,465 CFM |
| DY6 | 2,560 CFM | 3,020 CFM | 3,700 CFM |
| DY8 | 4,215 CFM | 4,810 CFM | 5,435 CFM |
Static Pressure (IWC) at Operating Pressures
| Model | 60 PSIG | 80 PSIG | 100 PSIG |
|---|---|---|---|
| DY2 | 5.8 IWC | 7.5 IWC | 8.8 IWC |
| DY4 | 5.8 IWC | 7.5 IWC | 8.8 IWC |
| DY6 | 4.2 IWC | 5.6 IWC | 6.5 IWC |
| DY8 | 4.0 IWC | 5.2 IWC | 6.2 IWC |
Free Air Induction Rates & Noise Levels
| Model | Free Air Induction @ 60 PSI | Free Air Induction @ 80 PSI | Free Air Induction @ 100 PSI | Noise @ 5ft — 60 PSI (dB) | Noise @ 5ft — 80 PSI (dB) | Noise @ 5ft — 100 PSI (dB) |
|---|---|---|---|---|---|---|
| DY2 | 28.83 | 27.00 | 24.10 | 66 dB | 68 dB | 71 dB |
| DY4 | 37.83 | 32.75 | 29.30 | 69 dB | 72 dB | 73 dB |
| DY6 | 42.67 | 37.75 | 37.00 | 73 dB | 75 dB | 78 dB |
| DY8 | 38.32 | 34.36 | 30.19 | 77 dB | 79 dB | 81 dB |
No Moving Parts
Compressed Air or Steam Powered
60–100 PSIG Operating Range
Max 150 PSI
Blower & Exhauster Use
Hazardous Area Safe
Long Duct Run Capable
4
Key Features & Benefits
| Feature | Benefit |
|---|---|
| No Moving Parts | Zero mechanical wear — no bearings, no blades, no rotating components. Eliminates maintenance requirements and failure modes associated with moving parts. Longest possible service life in demanding industrial environments across the Gulf and Africa. |
| Hazardous Area Safe | No electric motor, no spark source, no ignition risk. Suitable for use in ATEX-classified zones, explosive atmospheres, H₂S environments, and flammable vapour locations where electric or mechanical ventilation equipment cannot be used. |
| Compressed Air or Steam Powered | Operates on the compressed air supply already present on most industrial sites — no additional power source required. Can also operate on dry saturated steam where available in refinery and petrochemical plant environments. |
| Supply or Exhaust Operation | Reversal of the blower orientation switches between blowing fresh air in and exhausting contaminated air out — a single unit serves both confined space pre-entry purging and during-work ventilation needs. |
| Long Duct Run Capability | The Venturi design generates sufficient static pressure to push air through extended duct runs to remote confined spaces — suitable for ventilating deep tanks, long horizontal vessels, and underground structures. |
| 4-Model Range (DY2–DY8) | Airflow capacity from 865 CFM to 5,435 CFM — select the appropriate model based on vessel volume, required air changes per hour, and available compressed air supply capacity. |
| Compact & Lightweight (DY2/DY4) | DY2 at 5.5 lbs and DY4 at 8.5 lbs are easily portable for field use — suitable for maintenance teams and confined space entry teams working across multiple locations. |
| Conical Diffuser | Precisely controls air direction and expansion rate — improves ventilation efficiency and ensures airflow is directed to where it is needed within the confined space or vessel. |
| Wide Operating Pressure Range | Performs effectively at 60, 80 and 100 PSIG — flexible across different site compressor outputs and air supply conditions encountered across Middle East and Africa industrial sites. |
5
Applications by Industry
| Industry | Application |
|---|---|
| Oil & Gas — Upstream | Pre-entry purging and ventilation of storage tanks, production separators, pressure vessels, and wellhead enclosures before confined space entry — operations across UAE (ADNOC), Saudi Arabia (Aramco), Iraq (Basra, Baghdad), and Nigeria (NNPCL) |
| Refineries & Petrochemical | Fume and vapour extraction from towers, reactors, process vessels, and column internals during turnaround and maintenance shutdowns in Ruwais, Dammam, Jeddah, Lagos, and Basra refineries |
| Offshore Platforms | Confined space and below-deck ventilation on offshore platforms — air-powered operation is mandatory where electrical equipment is not permitted in potentially explosive atmospheres |
| Marine & Shipbuilding | Tank and hold ventilation, fume extraction during painting, blasting, and welding inside ship structures — widely used in shipyards across UAE, Ghana, Nigeria, and South Africa |
| Sandblasting Operations | Abrasive dust and contaminated air extraction from sandblasting enclosures, blast chambers, and vessel interiors during surface preparation work |
| Foundries | Heat, fume, and particulate ventilation in casting and moulding areas where compressed air is the primary energy source |
| Cooling & Drying | Directed airflow for cooling hot surfaces and process equipment, or drying vessel interiors after cleaning, hydrotesting, or chemical treatment |
| Manholes & Underground | Ventilation of manholes, underground utility vaults, pump sumps, and culverts before and during entry for maintenance teams across Egypt, Kenya, Tanzania, and South Africa |
| Construction & Tunnelling | Ventilation of tunnel faces, underground construction areas, and enclosed building voids where no electrical supply is available |
6
Operating Media & Safety Precautions
Operating Media
| Parameter | Specification |
|---|---|
| Recommended Media | Compressed air or dry saturated steam only |
| Maximum Operating Pressure | 150 PSI (10.3 bar) |
| Rated Operating Pressures | 60, 80 and 100 PSIG |
| Other Gases / Liquids | Extreme caution required — use only compressed air or dry saturated steam. Not recommended for other compressed gases or liquids. |
⚠ Safety Precautions — Read Before Use
- Ensure the unit is connected to suitable ground connections. When mounted on non-conductive adaptors or used free-standing, a bonding cable must be used.
- The unit must be firmly positioned and secured before compressed air or steam is admitted to the nozzle chamber — high reaction forces are generated during operation.
- Do not allow solid objects or loose debris to enter the inlet housing during operation.
- When exhausting fumes from tanks and process vessels, take care to avoid creating vacuum conditions that could collapse the tank or vessel — ensure adequate air make-up is provided.
7
Frequently Asked Questions
How does a Dynaweld venturi blower work?
Dynaweld venturi blowers operate on the Venturi principle with no moving parts whatsoever. Compressed air or dry steam enters a concentric manifold chamber surrounding a Venturi throat inside the blower housing. A series of symmetrically arranged orifices expand the air or steam at high velocity into a reaction zone downstream of the throat. The high-velocity air transfers its energy to slower-moving ambient air, accelerating it and drawing more air through the throat. A conical diffuser at the outlet controls direction and expansion of the airflow. The result is a high-volume, directional ventilation airflow from a relatively small compressed air input — with absolutely no rotating or mechanical components.
What is the difference between models DY2, DY4, DY6 and DY8?
The four models scale up in physical size and airflow capacity. The DY2 (28" length, 5.5 lbs) is the most compact, delivering up to 1,205 CFM at 100 PSIG and using a 1/2" NPT inlet. The DY4 (33.25", 8.5 lbs) delivers up to 1,465 CFM — also 1/2" NPT. The DY6 (44.5", 22.3 lbs) steps up significantly to 3,700 CFM with a 1" NPT inlet. The DY8 (46", 36 lbs) is the maximum capacity model at 5,435 CFM with 1" NPT. DY2 and DY4 are preferred for smaller vessels and portable applications; DY6 and DY8 for large tanks, tower internals, and rapid purge requirements.
Can the venturi blower be used in explosive or hazardous atmospheres?
Yes. Because the Dynaweld venturi blower has no moving parts, no electric motor, and no ignition sources of any kind, it is inherently safe for use in potentially explosive atmospheres, flammable vapour environments, H₂S gas environments, and ATEX-classified zones. Its operation on compressed air or steam means it introduces no electrical or mechanical ignition risk. This makes it one of the most appropriate ventilation tools for confined space entry in oil & gas, petrochemical, and marine environments where conventional electric fans are prohibited.
What compressed air supply is required to operate the venturi blower?
The Dynaweld venturi blowers operate at rated pressures of 60, 80 and 100 PSIG (approximately 4.1, 5.5, and 6.9 bar). Maximum rated pressure is 150 PSI. DY2 and DY4 use a 1/2" NPT air inlet connection; DY6 and DY8 use a 1" NPT connection. Air consumption ranges from 30 SCFM (DY2/DY4 at 60 PSIG) up to 180 SCFM (DY8 at 100 PSIG). Higher operating pressure delivers meaningfully higher total airflow — for example, the DY8 moves 4,215 CFM at 60 PSI versus 5,435 CFM at 100 PSI.
How can I get pricing for Dynaweld venturi blowers in UAE, Saudi Arabia, Iraq or Africa?
Global Hardware & Tools LLC supplies Dynaweld venturi blowers 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 any model (DY2, DY4, DY6 or DY8):
📲 WHATSAPP FOR BEST PRICING — +971 55 983 6563
For pricing on any model (DY2, DY4, DY6 or DY8):
📲 WHATSAPP FOR BEST PRICING — +971 55 983 6563
View Our Global Service Network (MENA & Africa)
UAE & GCCDubai, Abu Dhabi (UAE).
Riyadh, Jeddah, Dammam (Saudi Arabia).
Doha (Qatar) · Muscat (Oman) · Kuwait City · Bahrain.
Riyadh, Jeddah, Dammam (Saudi Arabia).
Doha (Qatar) · Muscat (Oman) · Kuwait City · Bahrain.
Iraq & LevantBaghdad, Basra, Erbil (Iraq).
Amman (Jordan).
Amman (Jordan).
North AfricaCairo, Alexandria (Egypt).
Algiers (Algeria).
Casablanca (Morocco).
Algiers (Algeria).
Casablanca (Morocco).
West & East AfricaLagos, Abuja (Nigeria).
Nairobi (Kenya).
Dar es Salaam (Tanzania).
Accra (Ghana) · Uganda.
Nairobi (Kenya).
Dar es Salaam (Tanzania).
Accra (Ghana) · Uganda.
Southern AfricaJohannesburg, Cape Town (South Africa).
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