stainless steel tee

PRODUCT INTRODUCTION

The roundness of reducers shall not exceed 1% of the corresponding end's outer diameter, with an allowable deviation of +3mm. For concentric reducers, the central axes of both ends shall align, permitting an eccentricity deviation of +5mm. The surface appearance of reducers shall be free from cracks and surface laps, while the wall thickness must exceed that of the larger-diameter pipe section.

Our company possesses precision inspection equipment with comprehensive testing capabilities, enabling production of high/medium/low-pressure pipe fittings and diverse accessories, including:

• Cold forming

• Hot forming

• Hot extrusion

• Machining

• Forging

• Stamping

• Heat treatment

We manufacture products compliant with ISO, ANSI, JIS, DIN, and GB standards, utilizing materials such as carbon steel, alloy steel, and stainless steel. Product range includes:

• Elbows

• Reducers

• Tees

• Crosses

• Caps

• Flanges

• Socket weld fittings

Divided by pipe diameter size:

1. The connecting ends of equal diameter tees are of the same size

2. The main pipe of the reducing tee has the same connecting size, while the connecting size of the branch pipe is smaller than that of the main pipe.

Hydraulic Bulging of Tee Fittings
The hydraulic bulging process for tee fittings forms branch pipes through axial compensation of metal material. The procedure involves:

1. Injecting liquid into a pipe blank (equal diameter to the tee) using a specialized hydraulic press

2. Synchronized horizontal side cylinder compression on the pipe blank

3. Volume reduction of the compressed pipe blank causing internal liquid pressure increase

4. Branch pipe formation via combined forces from side cylinders and internal pressure when reaching critical expansion pressure

5. Material flow along the die cavity to shape the branch

Process Characteristics:

• Single forming operation enables relatively high production efficiency

• Increased wall thickness in the tee's main pipe and shoulder sections

Technical Limitations:

• Requires high-tonnage equipment (restricts domestic applications to ≤DN400 standard wall thickness tees in China)

• Applicable materials: Low-carbon steel, low-alloy steel, stainless steel with low work hardening tendency, plus non-ferrous metals (copper, aluminum, titanium)

Hot Press Forming of Tee Fittings
The hot press forming process for tee fittings involves:

1. Using a pipe blank larger than the tee diameter, flattened to approximate the tee's dimensions

2. Punching a hole at the branch location for cold-drawn tees

3. Heating the pipe blank and placing it into forming dies with a branch-forming punch inserted internally

4. Radial compression of the pipe blank under pressure, forcing metal flow toward the branch direction

5. Simultaneous branch formation via punch stretching during radial compression

Process Mechanism:

• Combines radial compression of the main pipe and axial stretching of the branch

• Differentiated from hydraulic bulging: Metal compensation occurs through radial material movement (termed "radial compensation process")

Technical Advantages:

• Reduced equipment tonnage requirements due to heated forming

• Broad material compatibility: Low-carbon steel, alloy steel, stainless steel

• Preferred for large-diameter (≥DN400) and thick-walled tees

PRODUCTION DIVISION

Divided by material: carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, asphalt, PVC, etc.

Divided by production methods: top molding, pressing, forging, casting, etc.

Divided by manufacturing standards: Chinese standard, electrical standard, chemical standard, water standard, American standard, German standard, Japanese standard, Russian standard, etc., as follows:

GB/T12459-2005,GB/T13401-2005,ASME B16.9,SH3408,SH3409-96,SH3410-96,HG/T21635,DL/T 695,SY/T 0510,DIN 2615

APPLICATION AREA

Mechanical manufacturing, household appliances, pressure vessels, structural pipe fabrication, architectural decoration, chemical equipment, nuclear power, home appliances, catering kitchenware, elevators, solar energy, metal products, containers, automotive applications, precision electronics, rail transit, sanitary ware, food machinery.

PRODUCTION STRENGTH