3/16" x 8" Copper Crown Oil Line

Details

Model: 40451
Manufacturer: Crown Engineering Corporation
Product Name: Copper Oil Line – Straight
Part Number: 2309
Description: Straight copper oil line assembly, 3/16-inch outside diameter x 8-inch length, factory-flared ends with flare nuts, manufactured from Mueller Streamline copper tubing in accordance with ASTM-B280 and ANSI-B9.1 standards.

Product Overview

The Crown Engineering 40451 Copper Oil Line is a precision-fabricated, straight-line assembly designed for professional oil burner, fuel system, and HVAC service applications. Manufactured using genuine Mueller Streamline dehydrated and nitrogen-purged copper tubing, each assembly maintains a consistent dead-soft temper and contamination-free interior. The tubing is cleaned, dried, and sealed under nitrogen to prevent oxidation or moisture retention prior to installation. Each oil line includes factory-flared ends with installed flare nuts, allowing for direct field connection without on-site flaring or fabrication. This pre-assembled design minimizes labor and ensures leak-free performance in residential and light commercial burner systems.

Technical Specifications

• Manufacturer Part Number: 40451
• Alternate Part Number: 2309
• Product Type: Copper Oil Line Assembly – Straight
• Outside Diameter (OD): 3/16 inch
• Length: 8 inches
• Material: Mueller Streamline copper tubing
• Temper: Dead soft (annealed) for easy bending and installation
• Manufacturing Standards: ASTM-B280 and ANSI-B9.1 (Refrigeration and Fuel Service Tubing)
• Internal Preparation: Dehydrated and nitrogen-purged, sealed ends
• Surface Finish: Bright, oxidation-free exterior
• End Configuration: Factory-flared both ends with flare nuts installed
• Flare Type: 45-degree single-flare per SAE J512 standard
• Operating Pressure Range: Suitable for standard oil burner suction/vacuum lines and low-pressure return service
• Temperature Range: Rated for standard heating oil operating temperatures
• Corrosion Resistance: Inherent to copper alloy; suitable for indoor and protected installations
• Packaging: Individually packaged to prevent contamination and deformation during transport
• Application: Oil burner supply lines, fuel transfer piping, and general HVAC service installations

Installation Notes

• Install using standard flare fittings compatible with 45° SAE flared connections.
• Ensure flare seat surfaces are clean and free from debris prior to assembly.
• Do not solder or braze flared connections; use proper mechanical tightening techniques.
• Support tubing to prevent vibration fatigue and maintain proper routing clearances.
• Check all joints for vacuum integrity during commissioning of the oil delivery system.
• Use approved thread sealants on male flare fittings only when specified by manufacturer.

Summary

The Crown Engineering 40451 Copper Oil Line (3/16" x 8") is a pre-fabricated, nitrogen-purged, and factory-flared copper tubing assembly manufactured from Mueller Streamline material. Designed for professional HVAC and fuel oil system installations, it meets ASTM-B280 and ANSI-B9.1 standards, ensuring precise fitment, clean internal surfaces, and reliable long-term performance in oil burner and fuel delivery systems.