Equal Diameter Tee
Equal-Diameter Tee vs Reducing Tee Comparison
|
Feature |
Equal-Diameter Tee |
Reducing Tee |
|
Interface Diameter |
All three ports have the same diameter |
Main pipe diameter is larger than branch pipes |
|
Purpose |
Equal diversion or confluence |
Flow adjustment or matching of different pipe diameters |
|
Pressure Balance |
Low pressure loss, balanced flow |
Pressure in branch pipes may be lower than that in the main pipe |
Product Overview
Yuanlun equal-diameter tee belongs to sliding fastener series PEX pipe fitting. All three connecting ports adopt identical nominal diameter. It is T-shaped three-way component for pipeline fluid diversion and confluence. Realize splitting one main-line medium into two branch-lines or merging two branch-line media into one main pipeline. Consistent bore-diameter for three ports minimizes pressure loss and guarantees balanced flow distribution.
Adopt high-strength brass as main body material, slide-tight crimp connection structure, PN16 nominal pressure-rating, working-temperature 5℃-90℃. It requires matched dedicated slide-tension pliers for pipe-end flaring and crimping installation. Widely-applied in residential plumbing, floor-heating, HVAC and light-industrial non-corrosive-liquid piping-systems.
Important note: Installation recommended to be completed by qualified plumbing technicians. Mandatory pipe-end two-pass flaring before assembly; mismatched tools or unqualified flaring will bring hidden leakage risk. Each port must use corresponding-size slide-tension ring.
Main Functions
- Diversion: Evenly distribute the fluid from the main pipeline to two branch pipes (e.g., dividing household water from the main line to two bathrooms).
- Confluence: Merge fluids from two pipelines into one main pipeline (e.g., collecting multiple return flows in industrial equipment).
- Maintaining flow balance: Due to consistent diameters, fluid velocity and pressure loss in each branch are minimized.

Specifications
|
Feature |
Description |
|
Place of origin |
China |
|
Brand name |
Yunnl |
|
Product Name |
Equal Diameter Tee |
|
Size |
DN15-DN50 (three equal-size slide-tight ports) |
|
Connection Type |
Slide-tight / sliding-tension crimp connection |
|
Implement Standard |
GB/T 22051-2008 |
|
Nominal Pressure |
PN16 (1.6 MPa) |
|
Working Temperature |
5℃ ~ 90℃ |
|
Compatible Pipe Material |
PEX / PE-X cross-linked polyethylene pipe |
|
Operation Mode |
Pipe-end flaring + dedicated slide-tension pliers crimp installation |
|
Minimum Order Quantity |
1 |
|
Price |
Negotiable |
|
Packing |
Yuanlun standard packing |
|
Payment Terms |
L/C, D/A, D/P, T/T, Western Union, MoneyGram |
|
Delivery Time |
15 Days |
Working Principle
-
Main Components & Function
|
Component |
Core Function |
|
T-shape tee main-body |
Three-port equal-diameter inner runner, realize diversion / confluence of fluid |
|
Slide-tension ring |
Axial push-in clamping element for each port, produce radial squeezing force on PEX pipe outer-wall |
|
Flared PEX pipe-end |
After two-pass flaring, pipe material generates plastic deformation; utilize shape-memory rebound for self-adaptive sealing |
-
Operating Principle
- Perform standardized two-pass flaring treatment for each PEX pipe end connected to three ports of tee; rotate pipe slightly in second flaring pass for uniform flared mouth.
- Pre-install slide-tension ring onto each pipe end, insert flared pipe fully into tee corresponding port until internal stop shoulder.
- Operate matched dedicated slide-tension pliers to push slide-tension ring to designated final position for every port in sequence.
- Radial compression force from slide-tension ring cooperates with pipe-material memory rebound effect, forming friction-lock and self-adaptive sealing on three joints. Complete pipeline diversion or confluence function with balanced flow and low pressure-loss.
- Operating reminder: Three ports are identical-dimension, but each port needs independent flaring and crimp-operation. Skipping flaring procedure will directly cause sealing-failure.
Application Scenarios
-
Residential Domestic Water-Supply Systems
Use-case: Main-line water split for multi-branch water outlets in household plumbing layout. Project value: Equal-diameter runner guarantees balanced water-flow for each branch, small pressure drop.
-
Floor-Heating Manifold Auxiliary Pipelines
Use-case: Three-way branching joint for floor-heating circulating-water PEX pipelines. Project value: Fits heating-system temperature-cycling environment, slide-tight connection reliable for long-term circulation.
-
HVAC Air-Conditioning Circulating-Water Pipelines
Use-case: Medium diversion and merging for air-conditioning water-loop PEX piping networks. Project value: Low local resistance reduces system energy consumption.
-
Light-Industrial Non-Corrosive-Liquid Piping Systems
Use-case: Three-way split-flow / confluence joints for industrial PEX process pipelines. Project value: Complies with GB/T22051-2008 standard, stable performance for general-purpose non-corrosive-medium.
Installation Guide
-
Pre-Installation Check
- Confirm tee DN-size matches outer-diameter of PEX pipes for three ports; prepare matched flaring-tool and slide-tension pliers.
- Inspect tee body and slide-tension rings; reject cracked, deformed or damaged components.
- Square-cut all three pipe-ends, fully remove burrs and sharp edges; burr will scratch pipe and affect flaring quality.
-
Installation Steps
- Put slide-tension ring onto each pipe-end in advance. Execute mandatory two-pass flaring for every pipe end; slightly rotate pipe on second-pass to get uniform flared mouth.
- Insert each flared pipe fully into corresponding tee port and reach inner stop shoulder.
- Use matched slide-tension pliers, push slide-tension ring of each port one-by-one to final designated position.
- After finishing crimp-work for all three ports, slowly pressurize whole system and inspect every slide-tight joint for leakage.
-
Important Installation Notes
- Installation recommended for qualified plumbing technicians.
- Every port must complete independent two-pass flaring; cannot omit flaring for any port.
- Must use size-matched dedicated flaring-tool and slide-tension pliers; makeshift hand-tools are forbidden.
- Crimp-deformed slide-tension ring cannot be reused after disassembly; install brand-new ring for reassembly.
Maintenance & Troubleshooting
|
Phenomenon |
Probable Root-Cause |
Recommended Solution |
|
Slide-tight joint leakage |
Incomplete / uneven two-pass flaring; slide-tension ring not fully pushed home; pipe-end burr |
Disassemble joint; re-process pipe-end with standard two-pass flaring; replace new slide-tension ring; redo crimp-operation |
|
Slide-tension ring stuck |
Foreign debris or scale inside tee port cavity |
Disassemble, thoroughly clean tee inner-cavity and slide-tension ring |
|
Poor flow-balance between branches |
Foreign-object blockage inside tee inner runner |
Disassemble tee body, clean internal runner foreign-matter |
Routine-Maintenance Suggestion
- Visual leakage inspection for three crimp-joints: Quarterly
- Check slide-tension-ring locking-state during system overhaul: Annually
- Replace damaged slide-tension ring and re-flare pipe-end upon sealing-failure: As-required
Purchase Considerations
When purchasing, key attention should be paid to the pipe diameter, material, and connection method to ensure the stability and safety of system operation.
FAQ
Q: Can equal diameter tee absorb large scale pipeline thermal expansion displacement?
A: Only minor local clearance level displacement can be tolerated. For large thermal expansion, independent expansion absorbing components must be configured additionally.
Q: Can standard equal diameter tee be used for steam medium?
A: Standard model applies to liquid phase 5-90℃ noncorrosive liquid. Steam working condition requires special high temperature resistant sealing variant specified while ordering.
Q: Can I only flare one two ports and skip flaring for remaining ports?
A: Forbidden. All three PEX pipe ends need complete two pass flaring, any unflared port will bring high leakage risk.
Products Summary
Yuanlun equal-diameter tee is sliding-fastener T-shaped three-way PEX fitting complying with GB/T22051-2008 national-standard. PN16 pressure-rating, DN15-DN50 size-range, three equal-diameter slide-tight ports. It realizes fluid diversion and confluence, maintains balanced branch-flow with low pressure-loss. Requires two-pass pipe-end flaring plus dedicated slide-tension-pliers crimp-installation. Widely-applied for domestic water-supply, floor-heating, HVAC and light-industrial non-corrosive-liquid PEX piping-systems. Sample-order supported for pre-project-evaluation, 15-day standard lead-time for worldwide plumbing-HVAC distributors and engineering-contractors.
Factory Information
Zhejiang Yuanlun Valve Co., Ltd. was founded in 2006, formerly known as Yuhuan Guohong Valve Co., Ltd. It is located in Yuhuan, Zhejiang Province, known as the "Valve Capital of China". After nearly two decades of stable development, Yuanlun Valve is a professional manufacturer for HVAC valves integrating R&D, production and sales. Our product portfolio covers floor heating systems, air-conditioning systems, domestic water valves, including ball valves, thermostatic valves, manifolds, check valves, stop valves, filter valves, angle valves, pipe fittings, corrugated pipes and other series.
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