Product Overview
The HOME-FLEX 18-401-010 is a 1-inch IPS equal tee for creating a branch in a compatible underground yellow polyethylene fuel-gas piping system. The three matching 1-inch IPS ports allow a main underground run to continue while a third pipe branches toward another approved outdoor load. Its mechanical design is supplied ready for use with the three internal stiffeners needed to support the connected pipe ends within the fitting.
This tee is part of the HOME-FLEX Underground system and is intended only for direct-burial use with approved IPS yellow MDPE or polyethylene gas pipe carrying natural gas or propane. The product must not be confused with HOME-FLEX CSST fittings; the underground polyethylene and CSST systems have different components and installation requirements. HOME-FLEX lists its underground mechanical fittings under ASTM F1924 Category 1. A one-inch branch can carry substantial demand, but actual capacity depends on gas type, pressure, developed length, connected fittings, and appliance load. The complete system must be sized from current manufacturer tables and accepted by the governing authority. Confirm all three pipe sizes, the branch-load calculation, routing, burial requirements, and local approval before ordering.
Key Features:
- Equal tee with three 1-inch IPS connections
- Creates a branch in compatible underground poly gas piping
- Mechanical fitting supplied with internal stiffeners
- For approved IPS yellow polyethylene or MDPE gas pipe
- Suitable for natural-gas or propane systems when approved for the project
- ASTM F1924 Category 1 fitting family
Common Uses:
- Branching a larger underground gas distribution run
- Supplying separate outdoor appliance or building-service directions where permitted
- Adding a three-way connection to a professionally designed HOME-FLEX Underground system
Technical Specifications:
- Manufacturer part number: 18-401-010
- Product type: Underground equal tee
- Connection configuration: 1-inch IPS x 1-inch IPS x 1-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: Tee body and three 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 and specification marked on the fitting. The completed system must be tested and inspected according to the current HOME-FLEX instructions and local requirements before burial.
FAQ
Are all connections one inch?
Yes. This is an equal tee with three 1-inch IPS pipe connections.
Does the tee determine the system capacity?
No. Capacity must be calculated using the gas type, pressure, developed length, fitting allowances, and connected appliance loads.
Are internal stiffeners included?
Yes. Three stiffeners are supplied for the three pipe ends.
Can it be used under a building?
No. HOME-FLEX prohibits installing its Underground products beneath buildings.
Why Buy the HOME-FLEX 18-401-010 From Big Frog Supply?
Big Frog Supply identifies the exact one-inch equal-tee configuration, compatible pipe family, included components, manufacturer standard, underground-only limitations, and current documents so professional buyers can confirm the part before ordering.
