Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
DELHI U20-4HD Explosion Proof Smoke Ejector, 20 in Blade, Single Speed - Smoke Ejectors
DELHISmoke Ejectors

DELHI U20-4HD Explosion Proof Smoke Ejector, 20 in Blade, Single Speed

The DELHI Explosion Proof Portable Utility Fan (MPN U20-4HD) is an electric smoke ejector with a 20-inch blade diameter, single-speed operation, and a negative pressure type. Its explosion-proof motor enclosure makes…

SKU 3G-OTH-546831

Also listed as: U204HD · U20 4HD

Brand
DELHI
Item
U20-4HD Explosion Proof Smoke Ejector, 20 in Blade, Single Speed
Part Number
U20-4HD
Category
Smoke Ejectors
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

DELHI
Manufacturer Part Number
U20-4HD
Type
Electric
Speeds
1
Blade Dia
20 in
Power Source
Electric
Pressure Type
Negative
Motor Enclosure
Explosion Proof
Number of Speeds
1

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

DELHI Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DELHI Explosion Proof Portable Utility Fan (MPN U20-4HD) is an electric smoke ejector with a 20-inch blade diameter, single-speed operation, and a negative pressure type. Its explosion-proof motor enclosure makes it suitable for hazardous environments where flammable gases or vapors may be present.

Frequently Asked Questions

What is the DELHI U20-4HD explosion proof fan used for?

The DELHI U20-4HD is a portable smoke ejector designed for hazardous environments. Its explosion-proof motor enclosure allows safe operation where flammable gases or vapors may be present, making it suitable for industrial ventilation, confined space work, and emergency smoke removal.

What are the specifications of the DELHI U20-4HD fan?

The DELHI U20-4HD is an electric, single-speed smoke ejector with a 20-inch blade diameter and negative pressure type. It features an explosion-proof motor enclosure, making it suitable for hazardous locations. The manufacturer part number is U20-4HD.

Where to buy the DELHI U20-4HD explosion proof fan worldwide?

3G Electric supplies the DELHI U20-4HD explosion proof fan to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this model.

How to select the right explosion proof fan for hazardous locations?

Selecting an explosion proof fan requires matching the motor enclosure rating to the specific gas or vapor group present. The DELHI U20-4HD with its explosion-proof motor is suitable for many flammable environments. Always verify the fan's pressure type (negative for smoke ejection) and blade diameter for required airflow.

Used in

Common applications for DELHI
HVAC ducted systems — DELHI 7H750 belt-drive blower with 15 1/2-inch wheel and 3/4 hp three-phase motor for 3,465 cfm at 0.250 in SP.
Industrial ventilation — DELHI 7H748 belt-drive blower with 12 3/4-inch wheel and 1 hp three-phase motor for 2,800 cfm at 0.250 in SP.
General air movement — DELHI 7H711 belt-drive blower with 8-inch wheel and 1/6 hp single-phase motor for 805 cfm at 0.250 in SP.
Commercial exhaust — DELHI 7H725 belt-drive blower with 12 3/4-inch wheel and 3/4 hp single-phase motor for 2,640 cfm at 0.250 in SP.
Make-up air — DELHI 7H718 belt-drive blower with 10 1/4-inch wheel and 3/4 hp single-phase motor for 2,035 cfm at 0.250 in SP.
Ducted cooling — DELHI 7H743 belt-drive blower with 11 1/2-inch wheel and 1/2 hp three-phase motor for 2,045 cfm at 0.250 in SP.
Not sure this is the right part? Photo-identify it→

DELHI Products

3G Electric supplies DELHI smoke ejectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

More from DELHI

View all DELHI parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first