China Lateral Tee Manufacturers Suppliers Factory - Customized Lateral Tee Wholesale

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45 Degree Lateral Tees and Lateral Branch Tees are supplied for butt-weld piping systems in carbon steel, stainless steel and alloy steel grades.

This lateral tee range is engineered for industrial process lines requiring a branch connection at an angled outlet instead of the standard 90 degree branch used in conventional tees. Products are supplied to applicable dimensional and material standards, including project specifications, with size, schedule, material grade, end preparation and inspection requirements verified prior to production.

Typical supply scope: Carbon Steel Lateral Tee - Stainless Steel Lateral Tee - Alloy Steel Lateral Tee - Equal Lateral Tee - Reducing Lateral Tee - Butt Weld Lateral Tee - 45 Degree Lateral Tee

ASTM A860 WPHY Lateral Tee
An ASTM A860 WPHY Lateral Tee is a high-strength wrought carbon or low-alloy steel butt-welding pipe fitting engineered to branch a main pipeline at a specific acute angle—most commonly 45°—rather than a standard 90° orientation.
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ASTM A420 WPL6 Lateral Tee
An ASTM A420 WPL6 lateral tee is a wrought carbon steel butt weld pipe fitting designed to create an angled branch connection—typically 45 degrees—in low-temperature piping systems.
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ASTM A403 WP316L Lateral Tee
An ASTM A403 WP316L lateral tee is a stainless steel butt weld fitting used to create an angled branch connection from a main pipeline.
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ASTM A234 WPB 45 Degree Lateral Tee
An ASTM A234 WPB 45 Degree Lateral Tee is a wrought carbon steel butt weld pipe fitting designed to branch a pipeline at a 45-degree angle from the main run.
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Stainless Steel 45 Degree Lateral Tee
A stainless steel 45 degree lateral tee is a specialized butt weld pipe fitting designed to branch a secondary pipeline away from a main run at a precise 45-degree angle.
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Carbon Steel 45 Degree Lateral Tee
A carbon steel 45 degree lateral tee is a butt weld pipe fitting used to connect a branch line to a main pipeline at a 45-degree angle. Compared with a conventional 90-degree tee, the angled branch provides a more gradual change in flow
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Dimensional Standards and Tolerances

Parameter	Buyer Confirmation Requirement
Nominal Pipe Size	Run NPS/DN and branch NPS/DN
Outside Diameter (OD)	Must match mating pipe dimensions precisely
Wall Thickness	Schedule designation or exact mm/inch value
Branch Angle	Standard 45 degrees or specialized angle
End-to-End Dimensions	Center-to-end and branch-to-center metrics
Weld Bevels	Standard ASME B16.25 or project-specific bevel design

Why Choose Us

In-House Forming and Machining Capability

Direct operation of heavy press-forming machinery, elbow pushing equipment, CNC lathes, and precision machining centers enables strict dimensional control across complex fitting geometries, reducing off-spec risks during field installation.

Rigorous Quality and Traceability Systems

Production workflows integrate mandatory raw material verification, heat-number hard stamping, and in-process dimensional checking, backed by recognized quality management certifications ensuring full material traceability.

Strict Compliance with International Standards

Manufacturing processes adhere strictly to established dimensional codes and material specifications, including ASME B16.9 and ASTM standards, ensuring seamless compatibility with standard piping class requirements.

Available Product Configurations

Lateral tees are supplied tailored to diverse piping configurations:

Equal Lateral Tee: The run and branch feature identical nominal pipe sizes for balanced header-to-branch connections.

Reducing Lateral Tee: The branch size is smaller than the main run size, eliminating the need for a separate reducer component.

Bevel-End Preparation: Machine-beveled ends configured to match specific wall thicknesses and root-gap requirements.

Typical Industrial Application Sectors

Lateral tees are implemented in piping systems where angled branch routing is mandatory:

Oil and Gas

Gathering systems, process units, hydrocarbon transfer lines, and pipeline tie-ins.

Chemical Processing

Process lines, chemical transfer piping, and utility systems handling corrosive fluids.

Power Generation

High-pressure steam piping, auxiliary boiler lines, and cooling water circuits.

General Industrial

Heavy plant piping, custom-fabricated pipe spools, and skid-mounted equipment packages.

Manufacturing Equipment and Process Control

Precision in lateral tee production relies on heavy-duty machinery and controlled thermal processing:

Production Equipment: Heavy press-forming machines, elbow pushing machines, CNC lathes, and advanced machining centers.

Manufacturing Sequence: Raw Material Cutting -> Hot/Cold Form Pressing -> Sizing and Shaping -> Heat Treatment (when required by material code) -> Machining and Beveling -> Final Inspection.

Quality Assurance and Inspection Protocols

To ensure structural soundness, fittings undergo rigorous factory inspection:

Dimensional Verification

Laser/caliper checks on OD, wall thickness, center-to-end length, and branch angle.

Surface Examination

Visual and dimensional checks for forming defects, laps, or surface cracks.

Non-Destructive Examination (NDE)

Radiographic (RT) or Ultrasonic (UT) testing when mandated by project specifications.

Materials and Technical Grade Range

Material selection is dictated by service medium, operating temperature, pressure rating, and corrosion environment.

Carbon Steel: ASTM A234 WPB (commonly utilized for general process piping, oil and gas gathering, and utility lines).

Stainless Steel: ASTM A403 WP304/WP304L, WP316/WP316L (selected for corrosion resistance and chemical service).

Alloy Steel: ASTM A234 WP11, WP22, WP91 (utilized for elevated-temperature and high-pressure power or refinery service).

Lateral Tee Product Identification and Geometry

A Lateral Tee is a branch fitting with the outlet arranged at approximately 45 degrees to the main run. Compared with a standard 90 degree tee, its angled branch geometry is selected when the piping layout requires an inclined branch connection to optimize fluid dynamics and flow routing.

Branch Angle: Nominal 45 degrees (custom angles subject to engineering confirmation).

Connection Type: Butt-weld ends designed for direct field welding to piping spools.

Structural Integrity: Engineered to withstand system pressures matching the corresponding run pipe schedule.

Step-by-Step Procurement Selection Guide

To prevent mismatching during ordering, engineering procurement should follow these technical steps:

Verify Run Size

Define the main header nominal size .

Verify Branch Size

Define the branch outlet size for reducing types .

Specify Wall Schedule

State the exact pipe schedule (e.g., SCH 40, SCH 80, SCH 160, XXS) rather than relying on nominal size alone.

Match Material Grade

Ensure the fitting specification strictly corresponds to the piping class specification.

Confirm Design Code

Check whether ASME B16.9 or project-specific tolerances apply.

Material Traceability and Documentation Packages

International procurement requires absolute traceability from raw plate/pipe to finished fitting:

Material Test Certificates (MTC)

EN 10204 3.1 or 3.2 certification.

Traceability Data

Heat numbers hard-stamped on fittings corresponding to chemical and mechanical test reports.

Project Documentation

Dimensional inspection reports, heat treatment charts, NDE reports, and certificates of conformity.

Customization and Non-Standard Fabrication Capabilities

For complex projects requiring configurations beyond standard off-the-shelf sizes:

Custom Dimensions

Fabrication based on non-standard wall thicknesses, special branch angles, or heavy-wall configurations.

Drawing Review

Engineering evaluation of piping isometric drawings and technical datasheets prior to cutting and forming.

FAQ

Q: What is a Lateral Tee?

A: A Lateral Tee is a branch pipe fitting with the branch outlet arranged at approximately 45 degrees to the main run, utilized for angled branch connections in industrial piping layouts.

Q: What is the difference between a Lateral Tee and a regular Tee?

A: A Lateral Tee features an angled branch (typically 45 degrees), whereas a regular tee features a perpendicular 90 degree branch connection.

Q: Are Lateral Tees available in carbon steel?

A: Yes. Carbon steel grades such as ASTM A234 WPB are regularly produced according to required piping specifications.

Q: Can stainless steel Lateral Tees be supplied?

A: Yes. Stainless steel grades including ASTM A403 WP304/WP304L and WP316/WP316L can be manufactured based on project specifications.

Q: Can alloy steel Lateral Tees be supplied?

A: Yes. Alloy steel material grades are supplied in accordance with specified material standards and high-temperature service requirements.

Q: Are Lateral Tees available in reducing configurations?

A: Reducing configurations are available based on the specified run size, branch size, and dimensional requirements.

Q: Which standard is commonly referenced for butt-weld Lateral Tees?

A: ASME B16.9 is the primary dimensional standard for factory-made wrought butt-welding fittings, supplemented by material and testing specifications.

Q: What information is required to receive a quotation?

A: Minimum necessary details include run size, branch size, material grade, schedule or wall thickness, standard, and quantity. Drawings are recommended for non-standard configurations.

Q: Can material test certificates be provided?

A: Material and inspection documentation packages are provided in accordance with agreed purchase terms and project specifications.

Q: Is it possible to quote directly from an engineering drawing?

A: Yes. Piping isometric drawings, fitting schedules, and technical datasheets can be evaluated to confirm manufacturing feasibility and pricing.

As one of the leading lateral tee manufacturers and suppliers in China, we warmly welcome you to wholesale customized lateral tee made in China here and get pricelist from our factory. For price consultation, contact us.