Stainless steel rotary hammer Welding Male pipe fitting union

JN-UN-23 4003

Size：DN6 – DN100 (1/8" – 4")
Grade：SS304, SS316L
Standard：DIN, ISO, SMS, 3A
Working pressure: 1.6 – 6.4 MPa
Test pressure: 1.5 × working pressure
Temperature Range：-20℃ ~ +220℃
PTFE seals: Corrosion resistant, non‑stick, good sealing, suitable for hygienic and general industrial media
Viton seals: High temperature resistant, anti‑aging, chemical resistant, suitable for harsh working conditions

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Stainless steel rotary hammer Welding Male pipe fitting union

Welding Male is a weld‑type pipe connector with one weld end and one male thread end, mainly installed at pipeline transition points where welding connection needs to be converted to threaded connection. It is used toconnect welded pipelines with threaded valves, instruments or equipmentforpipe union stable transition and sealing. Widely used in industrial, hydraulic and hygienic pipelines. Types include standard welding maleandunion fitting reducing welding male union ball valve to meet different diameter and connection requirements.

Welding Male is a pipe transition fitting for connecting welded and threaded lines, not a control valve, so it is completely different from ordinary ball valves in function. It only provides stable transition and sealing without flow adjustment. Our products adopt forged SS304/SS316L,CNC precision machiningandsmooth welding ends. Compared with others, we have higher dimensional accuracy, better concentricity, stronger welding strengthandmore reliable sealing, effectively avoiding leakage and ensuring long‑term stable pipeline operation.

Accessories

Component & Material Table

Main Body & Welding End: 304/316L Stainless Steel (forging)
Male Thread End: 304/316L Stainless Steel (precision machining)
Seal Gasket (if applicable): PTFE/EPDM/Viton (food‑grade, corrosion‑resistant)

Product Parameter Details

Material：Main body: 304/316L stainless steel; Gasket: PTFE/EPDM/Viton
Structure Form：Straight type, reducing type; integral structure; jacketed structure available on request
Pressure Rating：Working pressure: 1.6–6.4 MPa; Test pressure: 1.5× working pressure
Function：Pipeline transition connection, convert welded end to male thread end
Grade Classification：Sanitary grade, industrial grade, chemical grade
Specification Match：Standards: DIN, ISO, SMS, 3A, NPT, BSP, ASME B16.11; Size: 1/8"–4"
Certification Grade：Hygiene level: 3A, FDA; Safety level: CE, ISO 9001
Installation Direction：Horizontal & vertical installation, no direction limitation
Customization Service：Custom size, thread type, material, length; sample support for testing

Stainless steel rotary hammer Welding Male pipe fitting union

Feature (F)、Advantage (A)、Benefit (B)

1. Raw Material & Forging Technology

F: Main body, welding end and male thread end are made of 304/316L stainless steel with forging process; no inferior casting material.
A: High structural strength, strong corrosion resistance, no internal defects, not easy to crack under high pressure; stable material performance in harsh environments.
B: Ensures long service life of the fitting, reduces replacement frequency and maintenance cost; safe for food, pharmaceutical and chemical pipeline systems.

2. Precision Machining Process

F: Full CNC precision machining for male thread and welding end; internal & external polishing (Ra≤0.8μm for sanitary grade); no burrs or uneven surfaces.
A: High dimensional accuracy, good concentricity, tight fit with pipelines and threaded components; smooth flow path, no fluid resistance, easy to clean.
B: Avoids leakage caused by poor fitting, meets CIP/SIP requirements for hygienic use; improves pipeline operation efficiency and reduces cleaning time.

3. Integral Structure Design

F: Integral forging structure, no splicing or welding seams between main body, welding end and male thread end; straight/reducing type optional.
A: Strong bearing capacity, high pressure resistance, not easy to loosen or break; stable connection, good sealing performance, adaptable to different pipeline diameters.
B: Ensures safe and stable pipeline operation, reduces leakage risk and potential safety hazards; meets different connection needs of various industrial scenarios.

4. Seal Gasket Feature

F: Equipped with food-grade PTFE/EPDM/Viton gaskets; matching seal design with thread end, tight fit without gap.
A: Excellent sealing performance, high and low temperature resistance, corrosion resistance to various media; no medium leakage, long seal service life.
B: Prevents medium loss and environmental pollution, reduces maintenance cost caused by seal replacement; suitable for harsh working conditions.

5. Multi-Standard Compatibility

F: Complies with DIN, ISO, SMS, 3A, NPT, BSP standards; size range 1/8"–4", compatible with global pipeline systems.
A: Wide applicability, interchangeable with other standard components; easy to install and replace, no need to modify existing pipelines.
B: Saves project modification cost and installation time; suitable for multi-industry applications, improves project flexibility and efficiency.

Stainless steel rotary hammer Welding Male pipe fitting union

Interface Mode: Weld end + Male thread end

Production Method: CNC machining

Surface Treatment: Mechanical polishing, electrolytic polishing, passivation

Raw Material Processing Method: Forging process

Operation Mode: Manual installation and disassembly

Seal Material Options: PTFE, EPDM, Viton

Sealing Method: End face center sealing

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