Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid) - Nozzles for Oil Burners
DELAVANNozzles for Oil Burners

DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid)

The DELAVAN Hot Water and Steam Boiler Burner Nozzle, Type B (Solid), MPN 21556GU, is a 45° spray angle nozzle for oil burners. 3G Electric sources this genuine OEM component across 14 industrial departments, with…

SKU 3G-OTH-66572

Also listed as: 21556 GU · 21556-GU

Brand
DELAVAN
Item
Hot Water and Steam Boiler Burner Nozzle: Type B
Category
Nozzles for Oil Burners
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.
Worldwide Shipping
Air & sea freight
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
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

DELAVAN
Manufacturer Part Number
21556GU
Nozzle Spray Angle
45°

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

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

Product Description

The DELAVAN Hot Water and Steam Boiler Burner Nozzle, Type B (Solid), MPN 21556GU, is a 45° spray angle nozzle for oil burners. 3G Electric sources this genuine OEM component across 14 industrial departments, with specialist expertise in combustion systems ensuring accurate specification and support.

Frequently Asked Questions

What is a DELAVAN hot water and steam boiler burner nozzle used for?

The DELAVAN Type B solid nozzle with a 45° spray angle is designed for oil-fired hot water and steam boilers. It atomizes fuel oil into a fine mist for efficient combustion, ensuring consistent heat output in industrial heating systems.

What are the specifications of the DELAVAN 21556GU nozzle?

The DELAVAN 21556GU is a Type B solid nozzle with a 45° spray angle, designed for oil burners. It is used in hot water and steam boiler applications. For flow rate and pressure ratings, consult the manufacturer's data sheet.

Where to buy DELAVAN 21556GU nozzles worldwide?

3G Electric supplies DELAVAN 21556GU nozzles worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine DELAVAN part.

How to select the correct DELAVAN nozzle for a boiler?

Select a DELAVAN nozzle based on the boiler's firing rate, fuel viscosity, and required spray angle. The 45° Type B solid pattern suits many hot water and steam boilers. Always match the nozzle's flow rate and angle to the burner manufacturer's specifications for optimal combustion.

Used in

Common applications for DELAVAN
Hot water boiler maintenance — DELAVAN Type B solid cone nozzles (e.g., 2500GU) for residential heating systems
Steam boiler operation — DELAVAN Type A hollow cone nozzles (e.g., 2663GU) for industrial steam generation
Process furnace combustion — DELAVAN nozzles with 80° spray angle for uniform heat distribution in manufacturing
Oil-fired air heaters — DELAVAN Type B nozzles (e.g., 2559GU) for direct-fired air heating units
Commercial kitchen equipment — DELAVAN nozzles for oil burners in large-scale cooking appliances
Emergency replacement for burner systems — DELAVAN nozzles stocked by 3G Electric for rapid turnaround

DELAVAN Products

3G Electric supplies DELAVAN nozzles for oil burners. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Gas Trains & Valves Ignition Transformers Burner Controls Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid), 80° Nozzle Spray Angle (MPN 2559GU)
DELAVAN
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid), 80° Nozzle Spray Angle (MPN 2559GU)
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid), 70° Nozzle Spray Angle (MPN 21566048GU)
DELAVAN
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid), 70° Nozzle Spray Angle (MPN 21566048GU)
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid), 60° Nozzle Spray Angle (MPN 2405GU)
DELAVAN
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid), 60° Nozzle Spray Angle (MPN 2405GU)
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type A (Hollow), 70° Nozzle Spray Angle (MPN 2663GU)
DELAVAN
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type A (Hollow), 70° Nozzle Spray Angle (MPN 2663GU)
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type A (Hollow), 80° Nozzle Spray Angle (MPN 2497GU)
DELAVAN
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type A (Hollow), 80° Nozzle Spray Angle (MPN 2497GU)
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid), 90° Nozzle Spray Angle (MPN 21463GU)
DELAVAN
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type B (Solid), 90° Nozzle Spray Angle (MPN 21463GU)

More from DELAVAN

View all DELAVAN parts
This DELAVAN oil burner nozzle features a Type B solid spray pattern with an 80° spray angle. It is used in residential and light commercial hot water and steam boiler burners to deliver a consistent fuel spray for stable combustion
DELAVAN
This DELAVAN oil burner nozzle features a Type B solid spray pattern with an 80° spray angle. It is used in residential and light commercial hot water and steam boiler burners to deliver a consistent fuel spray for stable combustion
This DELAVAN nozzle is designed for oil burners in heating systems. It features an 80° spray angle and Type A hollow spray pattern for fuel oil atomization. Suitable for residential and light commercial boilers
DELAVAN
This DELAVAN nozzle is designed for oil burners in heating systems. It features an 80° spray angle and Type A hollow spray pattern for fuel oil atomization. Suitable for residential and light commercial boilers
This DELAVAN nozzle is a Type B solid spray pattern nozzle for oil burners, with a 45° spray angle. It is used in hot water and steam boiler burners to atomize fuel oil, ensuring consistent flame shape and efficient combustion in commercial and industrial heating systems
DELAVAN
This DELAVAN nozzle is a Type B solid spray pattern nozzle for oil burners, with a 45° spray angle. It is used in hot water and steam boiler burners to atomize fuel oil, ensuring consistent flame shape and efficient combustion in commercial and industrial heating systems
This DELAVAN nozzle is a Type B solid oil burner nozzle with a 90° spray angle. It is designed for use in oil-fired burners for hot water and steam boilers, providing efficient fuel atomization for residential and light commercial heating systems
DELAVAN
This DELAVAN nozzle is a Type B solid oil burner nozzle with a 90° spray angle. It is designed for use in oil-fired burners for hot water and steam boilers, providing efficient fuel atomization for residential and light commercial heating systems
Oil burner nozzle with 80° spray angle for fuel atomization in heating systems. Suitable for residential, commercial, and industrial oil-fired boilers and furnaces
DELAVAN
Oil burner nozzle with 80° spray angle for fuel atomization in heating systems. Suitable for residential, commercial, and industrial oil-fired boilers and furnaces
Type B solid nozzle for oil burners with an 80° spray angle. Designed for atomizing fuel oil in hot water and steam boiler burners. Suitable for residential, commercial, and industrial heating systems
DELAVAN
Type B solid nozzle for oil burners with an 80° spray angle. Designed for atomizing fuel oil in hot water and steam boiler burners. Suitable for residential, commercial, and industrial heating systems
This DELAVAN nozzle is a Type B solid design for oil burners, featuring an 80° spray angle. It is used to atomize fuel oil in hot water and steam boiler burners for efficient combustion in heating systems
DELAVAN
This DELAVAN nozzle is a Type B solid design for oil burners, featuring an 80° spray angle. It is used to atomize fuel oil in hot water and steam boiler burners for efficient combustion in heating systems
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type A (Hollow), 60° Nozzle Spray Angle (MPN 21566041GU)
DELAVAN
DELAVAN Hot Water and Steam Boiler Burner Nozzle: Type A (Hollow), 60° Nozzle Spray Angle (MPN 21566041GU)