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DELAVAN

Delavan is a manufacturer of precision fluid handling components, with a product history that includes oil burner nozzles and hydraulic stack valve hardware. The brand is known in combustion and fluid power markets for components that meter, atomize, and control fluids in industrial equipment. 3G Electric supplies Delavan oil burner nozzles and stack valve bolt kits to maintenance, procurement, and plant engineering teams worldwide.

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About DELAVAN

Delavan is a manufacturer of precision fluid handling components, with a product history that includes oil burner nozzles and hydraulic stack valve hardware. The brand is known in combustion and fluid power markets for components that meter, atomize, and control fluids in industrial equipment. 3G Electric supplies Delavan oil burner nozzles and stack valve bolt kits to maintenance, procurement, and plant engineering teams worldwide.

The Delavan oil burner nozzle line includes Type A hollow-cone and Type B solid-pattern nozzles with 60° spray angles. These nozzles are used to atomize fuel oil in oil-fired hot water and steam boilers. Flow rates in the supplied range include 0.6 gph and 0.85 gph, with additional flow rates available across the catalog. Nozzle selection depends on burner input, firing rate, combustion chamber geometry, and the required flame shape. Hollow-cone patterns distribute fuel in a ring, while solid-pattern nozzles produce a fuller spray envelope; both influence flame stability, ignition, and combustion efficiency. Nozzles are wear items, and replacement intervals are set by fuel quality, firing cycles, and flue gas analysis.

The Delavan stack valve bolt kit line includes tie rod kits and hardware sets for assembling and securing hydraulic stack valve sections. These kits clamp work sections together to maintain alignment, sealing, and mechanical integrity in hydraulic systems. Manufacturer part numbers in the supplied range include 560788, TRK3, 560793, 560791, and 560792. Tie rod kits are specified by the number of sections they secure, such as single-section or three-section configurations. Correct clamping force and alignment are required to prevent fluid leaks and pressure loss at section interfaces.

3G Electric supports the Delavan line by stocking and sourcing genuine components, interpreting demand across industrial applications, and delivering them to buyers who need replacement parts without production delays. The catalog includes UNSPSC classification for oil burner nozzles (40101834) and country-of-origin data (USA, subject to change) so procurement teams can complete vendor setup and compliance checks. For nozzle selection, buyers should confirm spray pattern, spray angle, flow rate, and MPN against the burner manufacturer's specification. For stack valve hardware, buyers should confirm the valve model, number of sections, and required kit part number. 3G Electric provides spec-level product data and quote support for both lines.

Common Applications

  • Oil-fired hot water boilers — Delavan Type A hollow-cone nozzle, 60° spray angle, 0.85 gph (MPN 21566189GU)
  • Steam boiler burners — Delavan Type A hollow-cone nozzle, 60° spray angle, 0.6 gph (MPN 21566041GU)
  • Industrial oil burners — Delavan Type B solid-pattern nozzle, 60° spray angle, 0.85 gph (MPN 2405GU)
  • Hydraulic stack valve assembly — Delavan tie rod kit for single-section stack valve (MPN 560788)
  • Hydraulic stack valve assembly — Delavan tie rod kit for three-section stack valve (MPN TRK3)
  • Hydraulic stack valve maintenance — Delavan bolt kit for securing and aligning work sections (MPN 560793, 560791, 560792)

Frequently asked questions

Common questions about DELAVAN from 3G Electric.

What is the difference between Delavan Type A and Type B oil burner nozzles?

Delavan Type A nozzles produce a hollow-cone spray pattern, where fuel is concentrated in a ring with a less dense center. Type B nozzles produce a solid-pattern spray with a fuller distribution across the cone. Both are available in 60° spray angles in the supplied range. The choice depends on burner design, combustion chamber shape, and the flame pattern required for stable ignition and efficient combustion. Hollow-cone patterns are often used where a specific flame envelope is needed, while solid patterns can suit applications requiring broader fuel distribution. Always match the nozzle type to the burner manufacturer's specification.

What flow rates are available for Delavan oil burner nozzles?

The supplied Delavan oil burner nozzle range includes flow rates such as 0.6 gph and 0.85 gph, with additional rates available across the catalog. Flow rate is stated in gallons per hour and must match the burner's firing rate and input requirements. Selecting the correct flow rate affects heat output, fuel consumption, and combustion stability. Buyers should confirm the required gph against the burner nameplate or OEM specification before ordering. Using a nozzle with an incorrect flow rate can lead to poor combustion, soot formation, or unreliable ignition.

What are Delavan stack valve bolt kits used for?

Delavan stack valve bolt kits, including tie rod kits, are used to assemble and secure hydraulic stack valve sections. They clamp work sections together to maintain alignment, sealing, and mechanical integrity. Correct clamping prevents fluid leaks and maintains consistent hydraulic pressure at section interfaces. Kits are specified by the number of sections they secure, such as single-section or three-section configurations. Manufacturer part numbers in the supplied range include 560788, TRK3, 560793, 560791, and 560792. Buyers should confirm the valve model and section count before selecting a kit.

How do I select the correct Delavan nozzle for a hot water or steam boiler?

Selection requires matching the nozzle to the burner's specification. Confirm the spray pattern (Type A hollow or Type B solid), spray angle (60° in the supplied range), and flow rate in gph. The burner manufacturer's data plate or manual typically lists the required nozzle. Additional factors include fuel type, firing rate, and combustion chamber geometry. Nozzles are wear items and should be replaced according to maintenance schedules or when flue gas analysis indicates poor combustion. 3G Electric provides spec-level data to help buyers verify the correct MPN before ordering.

Are Delavan oil burner nozzles genuine OEM components?

3G Electric supplies genuine Delavan components. The oil burner nozzles in the supplied range carry Delavan branding and manufacturer part numbers, such as 21566189GU, 21566041GU, and 2405GU. Country of origin is listed as USA, subject to change. Buyers should verify the MPN against their requirement to ensure compatibility. 3G Electric sources and delivers these components across industrial applications, supporting maintenance and procurement teams that need replacement parts without production delays.

Does 3G Electric supply DELAVAN products?

Yes — 3G Electric (S) Pte. Ltd. supplies DELAVAN products. We stock the DELAVAN catalog and supply genuine factory-original products with full manufacturer warranty and technical support.