

The 90 Degree Tee Joiner is a structural, precision-engineered component designed to establish strong, secure, and seamless three-way intersections in architectural handrail networks. Specifically developed to bridge three independent tube sections at 90-degree angles, this heavy-duty tube connector allows for smooth and structurally sound branching. It is primarily used to construct a right-angle corner where a continuous horizontal handrail changes direction, while simultaneously anchoring a third vertical support post or down-pipe to the bottom opening.
This component features a premium internal flush-mount design. The open ends of the matching structural tubes slide directly over the male sleeves of the fitting, seating perfectly flush against the center shoulder body to maintain a uniform outer diameter. This configuration guarantees a clean profile with an exact, symmetrical offset height across all three intersecting axes.
Forged from high-grade, corrosion-resistant stainless steel—available in AISI 304, AISI 316, or Duplex SS 2205—these industrial handrail fittings are engineered for maximum reliability in both indoor and outdoor settings. They are available in standard dimensional diameters of 33.7mm, 42.4mm, and 48.3mm, and can be customized in either a modern brushed satin or a highly reflective mirror-polished surface finish to deliver a tailored, cohesive look.
|
Category |
Part NO. | Ø |
H |
Material |
Surface |
Place of Production |
| Tube Joiners |
A007.33.20 |
33.7x2.0mm |
25mm |
AISI 304,316 or Duplex SS 2205 |
Satin or Mirror polished |
Shandong, China |
|
Tube Joiners |
A007.42.20 |
42.4x2.0mm |
30mm |
|||
|
Tube Joiners |
A007.42.26 |
42.4x2.6mm |
30mm |
|||
|
Tube Joiners |
A007.48.20 |
48.3x2.0mm |
35mm |
|||
|
Tube Joiners |
A007.48.26 |
48.3x2.6mm |
35mm |
1. Manufacturing Process: Investment Casting + Precision Machining+Polishing
2. Application Scenario: Hotel, Villa, Apartment, Office Building, Hospital, School, Mall, Sports Venues, Leisure Facilities, Supermarket, Park, Bathroom, Outdoor, Exterior, Entry, Hall, Staircase, Gym
3. Use Place: Bridge Railings / Handrails, Deck Railings / Handrails, Porch Railings / Handrails, Stair Railings / Handrails
4. Design Style: Contemporary, Modern, European, Craftsman
5. Certificate: ISO9001:2015
6. Engineering Solution Capability: Graphic Design, 3d Model Design, Total Solution For Projects
7. Certificates: Material Certificates, Dimension Inspection Certificate
8. Lead Time : 60days batch production after tube joiner samples approved
9. Warranty Service: 1 Year
10. After-sales Service: Online Technical Support, Return And Replacement
Q1. What is the typical application for a 90 Degree Tee Joiner?
A: This fitting is ideal for a corner juncture where two perpendicular horizontal handrails meet at a 90-degree angle, while a third vertical post or baluster extends downward from the bottom socket to provide load-bearing structural support. It can also form a T-junction where a handrail splits into two perpendicular directions.
Q2. What sizes and specifications are available for this tube connector?
A: To accommodate standard architectural piping networks, the joint is manufactured in three common outer diameter sizes: 33.7mm, 42.4mm, and 48.3mm.
Q2. Which stainless steel grade should I select for an outdoor balcony or deck?
A: For internal configurations and climate-controlled commercial buildings, Grade AISI 304 stainless steel is the standard choice. For outdoor applications, coastal walkways, or high-humidity facilities, we highly recommend selecting marine-grade AISI 316 or Duplex SS 2205 to ensure top-tier protection against rust and environmental pitting.
Q3. How are these handrail fittings permanently installed?
A: Our modular joints are engineered for a clean, weld-free installation process. The internal male ends slide snugly inside the hollow handrail tubes and are typically secured permanently using high-strength industrial structural adhesive or tightened mechanically via discrete internal grub screws.
Q4. Can I customize the aesthetic surface finish of the 90 Degree Tee Joiner?
A: Yes. To ensure complete architectural integration, our 3-way corner connectors are available in either a high-end brushed satin finish or a flawless mirror-polished finish to align perfectly with your existing handrail hardware.