Product Overview
The HOME-FLEX 18-406-005 is a 1/2-inch IPS 90-degree elbow for changing direction in a compatible underground yellow polyethylene fuel-gas piping system. Its two equal-size mechanical connections allow an approved 1/2-inch IPS pipe run to turn through a right angle without introducing a threaded metal connection at the bend. The fitting is supplied ready for system assembly with an internal stiffener for each connected pipe end.
This elbow is part of the HOME-FLEX Underground system and is intended only for direct-burial applications using approved IPS yellow MDPE or polyethylene gas pipe carrying natural gas or propane. It is not compatible with HOME-FLEX CSST, and the two product systems must not be mixed. HOME-FLEX lists this mechanical fitting family under ASTM F1924 Category 1. The elbow changes routing and must be included in the developed-length calculation used for system sizing. Burial depth, pipe routing, tracer-wire provisions, pressure testing, inspection, and final transitions must follow the current HOME-FLEX Underground manual and local requirements. Confirm the marked 1/2-inch IPS pipe size, planned direction, calculated load, and authority approval before ordering.
Key Features:
- 1/2-inch IPS equal 90-degree elbow
- Changes direction in compatible underground poly gas piping
- Mechanical fitting supplied with two internal stiffeners
- For approved IPS yellow polyethylene or MDPE gas pipe
- For natural-gas or propane systems when approved for the project
- ASTM F1924 Category 1 fitting family
Common Uses:
- Routing an underground gas line around site features
- Changing direction between straight sections of yellow poly pipe
- Creating an approved right-angle turn in a professionally designed system
Technical Specifications:
- Manufacturer part number: 18-406-005
- Product type: Underground 90-degree elbow
- Connections: 1/2-inch IPS x 1/2-inch IPS
- Connection method: Mechanical compression-style fitting
- Pipe compatibility: Approved IPS yellow polyethylene or MDPE gas pipe
- Fuel compatibility: Natural gas and propane
- Installation location: Underground direct-burial system
- Standard: ASTM F1924 Category 1
- Included components: Elbow body and two internal pipe stiffeners
Important Installation Note:
Fuel-gas piping must be designed and installed by a qualified person as required by the governing authority. Do not use this fitting above ground, inside or beneath a building, encased in concrete, with CSST, or with pipe that does not match the size marked on the fitting. Test and inspect the completed system according to current HOME-FLEX instructions and local requirements before burial.
FAQ
What pipe size fits this elbow?
Both connections accept compatible 1/2-inch IPS yellow poly gas pipe.
Are the internal stiffeners included?
Yes. Two stiffeners are supplied, one for each connected pipe end.
Can it connect to HOME-FLEX CSST?
No. HOME-FLEX Underground polyethylene pipe and CSST use different fittings.
Does the elbow affect line sizing?
Yes. Include the manufacturer’s fitting adjustment value when calculating developed run length.
Why Buy the HOME-FLEX 18-406-005 From Big Frog Supply?
Big Frog Supply identifies the exact 1/2-inch IPS elbow size, part number, underground-only application, compatible pipe family, included stiffeners, applicable standard, and manufacturer documents so buyers can confirm the correct fitting before ordering.
