Table of Contents
Butt-Weld Fittings
- Complete Size Coverage
- Rigorous Testing
- Premium Raw Materials
- Multi-Standard Compliance
Product Range Overview
| Parameter | Range |
| Size Range | DN10 – DN2000 (NPS 1/8″ – 80″) |
| Wall Thickness | Sch10, Sch20, Sch40, Sch60, XS |
| PN Pressure Ratings | PN0.25MPa, PN0.6MPa, PN1.0MPa |
| Class Pressure Ratings | Class150, Class300, Class600, Class900, Class1500, Class3000LB |
| Materials Available | 304 / 304L / 316 / 316L / Duplex 2205 / Duplex 2507 |
| Applicable Standards | GB/T12459, GB/T13401, ASME B16.9, SH3408, SH3409, SH3410, HG/T21635, DL/T695, SY/T0510, DIN2615 |
Manufactured with Excellence. Certified for Safety.
Factory Introduction:
Nonleak operates a 50,000m² ISO 9001 certified manufacturing facility with fully automated butt-weld fitting production lines. Our commitment to quality begins with raw material selection (Baosteel / Tisco sourced) and continues through every stage of production, ensuring dimensional precision.
Industrial Grade for Critical Applications
Nonleak’s butt-weld fittings are precision-engineered to provide seamless, leak-proof connections for the most demanding industrial environments. With a comprehensive size range from DN10 to DN2000 and multiple pressure class options, we deliver complete piping solutions for oil & gas, chemical processing, power generation, and shipbuilding. Every fitting is fully traceable and rigorously tested to meet or exceed international specifications.
Products List
Selecting a stub end also requires confirming the matching backing flange, lap geometry, wall thickness and dimensional standard. Review our stub end flange selection guide before preparing the project RFQ.
Why Choose Nonleak Butt-Weld Fittings?
Complete Size Coverage
From DN10 to DN2000 – one source for all your project needs, from small retrofits to large-scale infrastructure.
Rigorous Testing
Every batch undergoes chemical analysis, mechanical property testing, and non-destructive examination (RT/UT/PT/MT) to ensure zero defects.
Premium Raw Materials
Sourced from top-tier steel mills (Baosteel, Tisco) with 100% material traceability.
Multi-Standard Compliance
Manufactured to meet GB, ASME, DIN, petrochemical SH, and chemical HG standards – suitable for both domestic and export projects.
Standards Compliance Details
| Standard | Description |
| GB/T 12459-2005 | Seamless butt-welding pipe fittings for steel |
| GB/T 13401-2005 | Plate-formed butt-welding pipe fittings |
| ASME B16.9 | Factory-Made Wrought Butt-welding Fittings |
| SH3408 / SH3409 / SH3410 | Steel butt-welding pipe fittings for petrochemical industry |
| HG/T21635 | Seamless butt-welding pipe fittings – carbon & low alloy steel |
| DL/T 695 | Steel butt-welding pipe fittings for power stations |
Planning shop or site welding? Product dimensions and material specifications are only part of a complete butt-weld piping package. Review our WPS for butt weld pipe guide to understand WPS, PQR, welder qualification and the documentation project teams should check before fabrication.
Request a Quote or Technical Consultation
- ✓ Your inquiry will be responded to within 8 hours
- ✓ Technical datasheets available upon request
- ✓ Custom manufacturing supported for large-scale projects
Applications
Oil & Gas pipelines (onshore & offshore)
Chemical & Petrochemical processing plants
Power generation (thermal, nuclear, renewable)
Shipbuilding & marine engineering
Water treatment & desalination facilities
Pharmaceutical & food processing (sanitary grade available upon request)
Mining & mineral processing
Pulp & paper industry