Your most trusted one-stop Steel pipe coupling manufacturer
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BAFAW manufactures steel pipe couplings for high-pressure threaded and welded pipeline connections in oil, gas, and industrial systems. Each coupling is produced from ASTM A105 / A182 / A350 materials, machined according to ASME B16.11 standards, and inspected for thread accuracy, straightness, and sealing performance to ensure reliable, leak-free joints.
Supports Third-Party Inspection (RT, UT, PT, MT)
Products Tested Under ASME B16.11 / MSS-SP-83 / ASTM A105 Standards
Manufacturing Capability
BAFAW integrates forging, machining, and surface treatment in one facility to ensure full process control. All fittings are produced with precision tools, experienced technicians, and standardized procedures—so every batch meets the same performance standards.
Quality Assurance
Every order follows strict inspection—from raw material testing to dimensional and pressure checks. BAFAW’s QC team issues inspection reports for each batch, ensuring traceability and compliance before shipment.
FAQ About Steel pipe coupling
BAFAW produces steel couplings according to ASME B16.11 and MSS-SP-83 standards, covering Class 2000, 3000, and 6000 pressure ratings.
All thread types conform to ASME B1.20.1 (NPT) and ISO 7/1 (BSP/BSPT) for global compatibility.
We manufacture couplings in ASTM A105 (carbon steel), A182 F304/F316 (stainless steel), and A350 LF2 (low-temperature steel).
Each material is supplied with EN 10204 3.1 certificates and full heat number traceability.
Standard sizes range from 1/8” to 4” with pressure classes 2000 / 3000 / 6000.
Custom or non-standard dimensions can be produced based on project drawings or special thread requirements.
Threads are cut on CNC lathes and verified using plug and ring gauges for each batch.
Thread pitch accuracy is controlled within ±0.05 mm, ensuring leak-free connections under rated pressure.
Each coupling undergoes 100% visual and dimensional inspection, plus random hydrostatic and hardness tests.
Dimensional tolerance is controlled within ±0.15 mm, and inspection reports are available for every order.
Yes. We provide PT (penetrant), MT (magnetic), UT (ultrasonic), and RT (radiographic) testing upon request, following ASME Section V standards.
Third-party inspection by SGS, BV, or TUV is also supported.
Standard finishes include black oxide, zinc plating, and hot-dip galvanizing.
Galvanized coatings exceed 70 μm thickness, offering >500 hours corrosion resistance in salt-spray tests.
For standard items, lead time is 7–10 days from stock or 25–30 days for new production.
Small batch or trial orders are accepted to support project verification and testing.
Looking forward to working with you！
Whether you have precise specifications or just a concept, BAFAW is ready 24/7 to turn your piping needs into reliable reality.