What is the difference between standard DV and DVW models?

DVW models (such as DVW450 and DVW500) feature wider, high-capacity backward-curved impellers and larger motors, delivering higher airflow rates (up to 5,115 CFM) and operating at static pressures up to 3.50 in. wg (875 Pa).

What do the letters and numbers in the model code (e.g., DV355-4E) mean?

In 'DV355-4E': 'DV' designates Vertical Upblast centrifugal roof exhaust; '355' indicates nominal impeller diameter in millimeters; '4' designates a 4-pole motor (~1,400 to 1,750 RPM); and 'E' designates Single-Phase 230V 60Hz power (whereas 'D' designates Three-Phase 230D/380Y/440Y 60Hz power).

What does Pmax mean in the Saudi Fan technical data table?

Pmax represents the Maximum Electrical Motor Input Power in kilowatts (kW) drawn by the external rotor motor at peak catalog load. It is an electrical power rating and should not be confused with pressure.

Why must fans be selected by duty-point CFM rather than maximum catalog CFM?

Maximum catalog CFM represents free-air discharge (0" static pressure). In real installations, duct friction, backdraft dampers, filters, and louvers generate static resistance. Fan selection must be made at the design operating point (CFM at static pressure) along the published fan curve.

What is the AMCA and UL certification status for Saudi Fan DV models?

The Saudi Fan Industries 2018 catalogue (Rev 03) references AMCA Sound and Air Performance ratings based on AMCA Publications 211 and 311. Furthermore, models DV225-2E, DV310-4E, DV355-4E, and DV400-4E carry UL 705 / CSA C22.2 listings (File no. E494511). Cloud Electricals confirms current project-specific license validity upon submittal.

How does 100% speed control work on Saudi Fan direct-drive motors?

Because the external rotor motor is positioned directly inside the moving airstream within the impeller hub, it receives superior cooling. This allows the motor voltage to be reduced from 100% down to 0% using 5-step autotransformers or electronic controllers without overheating.

Are standard Saudi Fan DV upblast fans explosion-proof?

No. Standard DV and DVW models are rated strictly for clean, non-hazardous ambient air up to 60°C (45°C on select models). Applications requiring hazardous or explosive vapour exhaust (Zone 1/2, T1–T3) require factory-ordered explosion-proof motors with protection class 'e' (DIN 50019).

What accessories are typically coordinated with Saudi Fan DV upblast fans?

Standard project accessories include prefabricated steel or aluminum roof curbs (sized to curb cap C), gravity or motorized backdraft dampers (sized to rough-in opening RO), 5-step autotransformer speed controllers, and local IP65 lockable disconnect switches.

Saudi Fan DV & DVW Series • 347 to 5,115 CFM (60Hz)

Saudi Fan DV Upblast Roof Fan

Q: Can the Saudi Fan DV series be used for commercial kitchen grease exhaust?

Standard DV/DVW models feature external rotor motors in the airstream and are designed for clean air and general dining/kitchen room air exchange. For heavy commercial cooking grease hoods, an engineered grease review is required, or contractors should select specialized UL 762 compliant Upblast Roof Fans equipped with external motor chambers and grease drain collection.

Official Saudi Fan Industries DV & DVW direct-drive centrifugal vertical upblast roof exhaust fans (DV190 to DVW500) featuring external rotor motors, 100% voltage speed control, backward-curved aluminum wheels, and heavy-gauge spun aluminum wind bands for clean-air roof exhaust across Saudi Arabia.

Request Quote on WhatsApp Call Technical Sales Download Saudi Fan DH/DV Catalogue PDF

In brief

What is the Saudi Fan DV upblast series?

The DV & DVW series is Saudi Fan Industries' direct-drive centrifugal roof exhaust range with vertical upward discharge. Powered by external rotor motors with Class F insulation, these fans project exhaust air upward away from the roof surface, offering 100% speed controllability, low starting current, and non-overloading backward-curved impellers for commercial clean air applications.

Saudi Fan DV direct-drive centrifugal upblast roof exhaust fan with vertical discharge wind band

Saudi Fan Upblast Roof Fan

13 verified 60Hz model configurations

Direct-drive external rotor motor (100% speed controllable)

Vertical upblast clean-air discharge

Saudi Fan Upblast Roof Fan

Fan Category

Centrifugal Upblast Roof Fan

Product Series

Saudi Fan DV & DVW Series

Airflow Span

347 to 5,115 CFM (60Hz catalogue range)

Max Static Pressure

Up to 3.50 in. wg (875 Pa) on DVW500

Drive Type

Direct Drive External Rotor Motor

Speed Control

100% Voltage Controllable (5-Step Transformer)

Application Check

Is the Saudi Fan DV upblast fan suitable for your ventilation project?

Evaluate vertical discharge requirements, kitchen grease review status, electrical supply, and ambient temperature limits.

Clean-Air Standard

Approved Clean Air

Commercial buildings, supermarkets, shopping malls, and institutional clean-air vertical exhaust
Dining halls, cafeterias, and general non-greasy kitchen ambient ventilation
Warehouses, logistics facilities, and manufacturing plants requiring upward air plume
Parking garages, equipment rooms, and utility spaces with vertical discharge clearance

Grease Review Required

Consultant Review

General dining & kitchen area ventilation is supported; grease-heavy hood exhaust requires engineering review
Standard models have motor in airstream: cooking grease hoods require UL 762 listed upblast fan with external motor
Operating duty point: select fan based on required CFM at system static pressure, not free-air maximum
Electrical supply: confirm single-phase (230V 60Hz) vs. three-phase (230D / 380Y / 440Y 60Hz)

Hazard Certificate Required

Special Duty Order

Standard external rotor DV/DVW models are NOT explosion-proof; flammable atmospheres require certified explosion-proof motors (DIN 50019)
High-temperature emergency fire smoke spill requires Civil Defence approved VDO Smoke Extraction Fans
Corrosive chemical fumes require specialized polypropylene or 316 stainless steel fan construction
Downward discharge applications require Saudi Fan DH Downblast Roof Fans

Kitchen Grease & Hazardous Separation Notice: CRITICAL KITCHEN GREASE & HAZARDOUS SEPARATION NOTICE: Standard Saudi Fan DV/DVW models feature external rotor motors located directly in the airstream, designed for clean air and general dining/kitchen room air exchange up to 60°C (45°C on select models). Standard units do NOT carry UL 762 kitchen grease listing. For heavy commercial cooking grease hoods, an engineered grease review or dedicated UL 762 compliant Upblast Roof Fan is required. Standard units are NOT explosion-proof.

Airflow & Electrical Performance

Saudi Fan DV & DVW 60Hz Verified Specifications Table

Complete documented vertical upblast performance matrix across all 13 model configurations from the official Saudi Fan Industries catalogue.

Swipe horizontally to view all model specifications and duty points.

Model Code	Voltage / Phase (60Hz)	Pmax (kW)	Imax (A)	Max CFM (0" SP)	CFM @ 0.50" SP	CFM @ 1.00" SP	Roof Opening	Damper Size	IP / Class	Max Air Temp	Weight
DV190-2E	230V / 1-Ph	0.075 kW	0.34 A	347 CFM	220 CFM	98 CFM	220x220 mm	215x215 mm	IP44 / Cl. F	60°C	5.5 kg
DV225-2E	230V / 1-Ph	0.210 kW	0.70 A	727 CFM	532 CFM	360 CFM	220x220 mm	215x215 mm	IP44 / Cl. F	60°C	5.5 kg
DV310-4E	230V / 1-Ph	0.175 kW	0.77 A	1,091 CFM	680 CFM	270 CFM	291x291 mm	286x286 mm	IP44 / Cl. F	45°C	11.0 kg
DV310-4D	230D/380Y / 3-Ph	0.240 kW	0.65 A	1,088 CFM	760 CFM	380 CFM	291x291 mm	286x286 mm	IP54 / Cl. F	60°C	11.0 kg
DV355-4E	230V / 1-Ph	0.430 kW	1.95 A	1,591 CFM	1,120 CFM	700 CFM	443x443 mm	438x438 mm	IP54 / Cl. F	60°C	21.0 kg
DV355-4D	380V / 3-Ph	0.340 kW	0.85 A	1,500 CFM	1,100 CFM	620 CFM	443x443 mm	438x438 mm	IP54 / Cl. F	60°C	21.0 kg
DV400-4E	230V / 1-Ph	0.740 kW	3.30 A	2,119 CFM	1,720 CFM	1,320 CFM	443x443 mm	438x438 mm	IP54 / Cl. F	60°C	23.0 kg
DV400-4D	230D/380Y / 3-Ph	0.660 kW	1.60 A	2,222 CFM	1,810 CFM	1,360 CFM	443x443 mm	438x438 mm	IP54 / Cl. F	60°C	23.0 kg
DV450-4E	230V / 1-Ph	1.500 kW	6.70 A	3,325 CFM	3,020 CFM	2,450 CFM	443x443 mm	438x438 mm	IP54 / Cl. F	45°C	32.0 kg
DV450-4D	230D/380Y / 3-Ph	1.200 kW	2.70 A	3,347 CFM	2,950 CFM	2,390 CFM	443x443 mm	438x438 mm	IP54 / Cl. F	60°C	32.0 kg
DVW450-4E	230V / 1-Ph	1.650 kW	7.20 A	4,032 CFM	3,550 CFM	3,020 CFM	443x443 mm	438x438 mm	IP54 / Cl. F	45°C	32.0 kg
DVW450-4D	230D/380Y / 3-Ph	1.500 kW	3.40 A	4,349 CFM	3,920 CFM	3,420 CFM	443x443 mm	438x438 mm	IP54 / Cl. F	50°C	32.0 kg
DVW500-4D	230D/380Y/440Y	2.500 kW	5.60 A	5,115 CFM	4,800 CFM	4,420 CFM	443x443 mm	438x438 mm	IP54 / Cl. F	45°C	43.0 kg

Model Code & Power Clarifications: (1) Pmax (kW) represents the Maximum Electrical Motor Input Power drawn at peak load, not static pressure. (2) Suffix 'E' = Single-Phase 230V 60Hz; Suffix 'D' = Three-Phase 230D / 380Y / 440Y 60Hz. (3) AMCA & UL Scope: Performance ratings based on AMCA Publication 211 & 311 procedures (2018 catalogue). Models DV225-2E to DV400-4E listed under UL 705 (File E494511).

Dimensions & Opening Schedule

Saudi Fan DV Architectural Dimensions & Opening Schedule

Dimensions in millimeters for roof curb rough-in, curb cap landing, and gravity damper sizing.

Swipe horizontally to view all dimensional values.

Model Series	Base Plate A (mm)	Curb Cap C (mm)	Cowl Dia. B (mm)	Height H (mm)	Roof Opening (RO)	Damper Size	Weight (kg)
DV 190 / DV 225	355 x 355 mm	332 x 332 mm	484 mm (Dia)	200 mm	220 x 220 mm	215 x 215 mm	5.5 kg
DV 310	450 x 450 mm	434 x 434 mm	598 mm (Dia)	280 mm	291 x 291 mm	286 x 286 mm	11.0 kg
DV 355 / DV 400	630 x 630 mm	598 x 598 mm	800 mm (Dia)	380 mm	443 x 443 mm	438 x 438 mm	21.0 - 23.0 kg
DV 450 / DVW 450	630 x 630 mm	663 x 663 mm	865 mm (Dia)	475 mm	443 x 443 mm	438 x 438 mm	32.0 kg
DVW 500	630 x 630 mm	663 x 663 mm	865 mm (Dia)	475 mm	443 x 443 mm	438 x 438 mm	43.0 kg

1. Roof Curb Construction

Build concrete or prefabricated curb minimum 300 mm above finished roof level matching curb cap C (332 to 663 mm).

2. Damper Coordination

Coordinate square gravity or motorized backdraft dampers: 215x215 mm (DV190/225), 286x286 mm (DV310), or 438x438 mm (DV355-DVW500).

3. Perimeter Weather Gasket

Apply continuous closed-cell EPDM gasket tape along the curb top landing before bolting the aluminum curb cap.

4. Upblast Overhead Clearance

Maintain minimum 1.5 m unobstructed vertical clearance above the discharge wind band to ensure free air projection.

Engineering Architecture

Saudi Fan Upblast Architecture & Weather Protection

Engineered for vertical exhaust plume projection, high aerodynamic efficiency, zero belt maintenance, and 100% voltage speed control.

Vertical Upblast Airflow Discharge

Upward jet discharge geometry with integrated aerodynamic wind band directs exhaust plume away from roof surfaces and prevents roof staining.

Direct-Drive External Rotor Motor

Compact motor integrated directly within the backward-curved impeller hub, ensuring exceptional cooling, zero belt losses, and low starting currents.

Backward-Curved Aluminum Impeller

Aerodynamically balanced aluminum backward-curved centrifugal impeller delivers high static pressure efficiency with non-overloading power characteristics.

100% Variable Voltage Speed Control

External rotor design enables smooth, 100% stepless or 5-step voltage speed control using matching autotransformer or electronic thyristor controllers.

Key Features

Saudi Fan DV Upblast Engineering Highlights

Precision manufacturing by Saudi Fan Industries under EN ISO 9001:2015 quality assurance management.

Vertical upblast discharge architecture projects exhaust air away from the roof envelope

Complete 60Hz model range (DV190 to DVW500) covering 347 to 5,115 CFM at up to 3.50 in. wg SP

100% speed controllable across operating range using optional 5-step autotransformer controller

Heavy-gauge corrosion-resistant aluminum housing with integral bird screen and wind band

Built-in thermal overload protection contacts wired directly in series with motor windings

Permanently lubricated, over-dimensioned sealed ball bearings on both sides for long service life

Ingress protection IP44 (sizes 190–310 single-phase) and IP54 (three-phase and larger models)

AMCA Sound and Air Performance certification & optional UL 705 listed models referenced in catalogue

Specifications

Category Technical Specifications

Comprehensive engineering specifications for Saudi Fan DV and DVW upblast centrifugal roof exhaust fans.

Swipe horizontally to compare all specifications.

Specification	Engineering Details
Product Category	Roof Fan
Product Type	Direct Drive Upblast Centrifugal Roof Exhaust Fan
Brand / Series	Saudi Fan Industries DV & DVW Series
Installation Mounting	Rooftop curb mounting with perimeter flashing flange
Air Discharge Type	Vertical Upblast (upward roof discharge with wind band)
Airflow Range (0" SP)	347 to 5,115 CFM across 13 model configurations
Static Pressure Capability	Tested from 0" up to 3.50" in. wg (0 to 875 Pa) on DVW500
Motor Technology	External rotor direct-drive motor with Class F insulation
Speed Control Method	100% voltage controllable via 5-step autotransformer or electronic regulator
Electrical Supply Options	Single-phase 230V / 60Hz ('E') or Three-phase 230D / 380Y / 440Y 60Hz ('D')
Motor Ingress Protection	IP44 (sizes 190–310 1-Ph) / IP54 (three-phase and sizes 355–500)
Maximum Air Temperature	60°C continuous (45°C on DV310-4E, DV450-4E, DVW450-4E, DVW500-4D; 50°C on DVW450-4D)
Casing Construction	Heavy-gauge spun aluminum shroud, curb cap, and wind band with bird screen
Compliance Documentation	Catalogue PDF, AMCA/UL reference, SASO COC, CR, and VAT certificates

Inclusions & Options

Standard Inclusions vs. Optional Accessories

Clear distinction between factory-included standard equipment and optional project mounting accessories.

Standard Inclusions (Base Package)

Included with every Saudi Fan DV/DVW unit from the factory

Spun Aluminum Upblast Cowl & Wind Band
Heavy-Gauge Aluminum Curb Mounting Cap
Backward-Curved Centrifugal Aluminum Impeller
Direct-Drive External Rotor Motor (IP44 / IP54, Class F)
Galvanized Protective Wire Bird Screen
IP55 Weatherproof Electrical Terminal Enclosure

Optional Accessories (Project Coordinated)

Specify during quotation review according to site mounting requirements

Prefabricated Steel / Aluminum Roof Curb (Matching Curb Cap C)
Gravity Backdraft Damper (Square Rough-In Sizing)
Motorized Actuated Backdraft Damper (230V / 24V)
5-Step Autotransformer Speed Controller (1-Phase / 3-Phase)
Local Lockable IP65 Electrical Disconnect Switch
Sound-Absorbing Curb Upstand Liner

Applications

Where Saudi Fan DV Upblast Fans Are Installed

Vertical clean-air rooftop centrifugal exhaust across commercial buildings, logistics warehouses, dining halls, and industrial production plants.

Commercial department stores

Removes: High-volume air exchange, solar heat buildup, and indoor humidity

Warehouses & logistics

Removes: Stagnant heat and general ventilation air through upward vertical discharge

Industrial manufacturing plants

Removes: Clean process heat, equipment exhaust, and factory ambient air

Dining halls & food service

Removes: General food service air, steam, and dining room ventilation

Enclosed parking garages

Removes: Warm air, light vehicular exhaust, and general ventilation air

Mechanical plant rooms

Removes: Compressor heat, chiller room ambient air, and electrical substation warmth

Agricultural & farm facilities

Removes: Humid air and thermal load in livestock and storage utility barns

MEP project ventilation

Removes: Supplied with exact DV/DVW model, duty point, and Saudi compliance docs

Airstream & discharge boundary: Saudi Fan DV fans are engineered exclusively for vertical discharge of clean ambient air (≤ 60°C). For commercial cooking grease hoods requiring UL 762 listed grease handling and wash-down drains, select a dedicated Upblast Roof Fan. For downward perimeter discharge, select a Saudi Fan DH Downblast Roof Fan. For high-capacity industrial belt-drive downblast duty, select an RCD Downblast Roof Fan.

Selection support

What to Send for Correct Saudi Fan DV Selection

Provide design airflow (CFM) at system static pressure, preferred DV/DVW model, electrical voltage & phase, roof curb dimensions, speed controller requirements, and project city in Saudi Arabia.

Required exhaust airflow (CFM) at system static pressure (in. wg / Pa)

Exact model code preference (e.g. DV355-4E vs. DV355-4D vs. DVW450-4D)

Electrical supply: single-phase 230V 60Hz ('E') vs. three-phase 380V 60Hz ('D')

Airstream classification: clean air vs. grease-laden air (grease review required)

Roof opening and curb cap outside dimension (C dimension: 332 to 663 mm)

Matching gravity or motorized backdraft damper size (215 to 438 mm square)

Speed controller requirement (5-step autotransformer matching motor FLA)

Quantity of fans required per roof zone

Project city and delivery schedule in Saudi Arabia

Submittal compliance requirements (Datasheet, AMCA/UL scope, CR, VAT, COC)

Downloads

Documents & Procurement Files

Download the official Saudi Fan DH/DV catalogue PDF and request technical submittal packages for engineering approvals.

Saudi Fan DH/DV Roof Fan Catalogue — Rev 03 (2018 Catalogue — Confirm Current Model / Status)Download PDF

Saudi Fan DV Technical Submittal & Performance CurvesRequest Submittal

Cloud Electricals Company ProfileRequest Profile

Saudi Commercial Compliance (CR/VAT/COC)Request Compliance Docs

Saudi Fan AMCA & UL 705 Verification ScheduleRequest Certification Schedule

Related Commercial & Industrial Fans

Explore other rooftop and wall-mounted exhaust fan categories for complete project ventilation schedules.

Saudi Fan DH Downblast Roof Fan

Upblast Roof Fan

Centrifugal Roof Fan

Downblast Roof Fan

FAQ

Saudi Fan DV Upblast Questions

Answers for HVAC consultants, MEP contractors, and building procurement engineers reviewing Saudi Fan DV & DVW upblast roof exhaust fans in Saudi Arabia.

DV and DVW are upblast centrifugal roof fans that discharge air vertically upward away from the roof surface, helping prevent roof surface contamination. DH and DHW are downblast roof fans that discharge air downward around the roof perimeter.

Quotation Request

Request Saudi Fan DV Upblast Roof Fan Quotation

Send your required Saudi Fan DV/DVW model (DV190 to DVW500), design airflow (CFM), static pressure (in. wg / Pa), voltage/phase (230V 1-Ph vs. 380V 3-Ph), and project city in Saudi Arabia.

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