Delavan 00135-90w1 Oil Nozzle 1.35 Gph 90 Degree

Product Description

The DELAVAN 00135-90w1 is an oil burner nozzle rated at 1.35 gallons per hour (GPH) with a 90-degree spray angle and a semisolid (W Semi) spray pattern. Oil burner nozzles atomize fuel oil into a fine mist before it enters the combustion chamber, directly affecting ignition reliability, combustion efficiency, and heat output. This nozzle is installed by licensed oil heat technicians during routine burner service, nozzle replacement, or efficiency tune-ups on residential and light commercial oil-fired heating systems. The semisolid spray pattern is suited for applications where a defined, moderately dense flame pattern is required.

This nozzle is appropriate for oil-fired forced-air furnaces, boilers, and water heaters operating on No. 1 or No. 2 fuel oil. A 1.35 GPH flow rate at a standard pump pressure of 100 psi corresponds to a specific heat output, making proper nozzle sizing critical to match the appliance manufacturer's specifications. Technicians should always verify the required GPH, spray angle, and spray pattern from the appliance data plate or service manual before selecting a replacement nozzle.

Key Features

• 1.35 GPH rated flow rate for consistent fuel delivery
• 90-degree spray angle for wide combustion chamber coverage
• W Semi (semisolid) spray pattern for a moderately dense, defined flame shape
• Lightweight construction at 0.10 pounds for easy single-hand installation
• Direct replacement style for standard oil burner nozzle fittings

Compatibility

Designed as an OEM-style replacement nozzle for oil-fired furnaces, boilers, and water heaters that specify a 1.35 GPH, 90-degree, semisolid spray pattern nozzle. Always confirm appliance manufacturer specifications before installation.

Installation Notes

Oil burner nozzle replacement is performed by qualified oil heat technicians in accordance with applicable local codes and NFPA 31 guidelines. Shut down the burner and allow it to cool before servicing. Use a proper nozzle wrench to remove and install the nozzle to avoid damaging the electrode assembly or nozzle adapter. Never reuse a removed nozzle — annual replacement during tune-up service is standard practice.

Technical Specifications

• Flow Rate: 1.35 GPH
• Spray Angle: 90 degrees
• Spray Pattern: W Semi (Semisolid)
• Item Weight: 0.10 pounds

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 00135-90w1