Adapter fitting introduction
In industrial fluid and gas systems, adapter fittings play a critical role in connecting components with different thread types, sizes, or standards. When standard pipe fittings cannot satisfy customer demand , custom adapter fittings become essential for ensuring system safety, sealing reliability, and long-term operation.
As a custom pipe fitting manufacturer, we specialize in the CNC machining of carbon steel and stainless steel adapter fittings for distributors and oversea customers. We are professional supply various pipe fitting include adapter fitting , we focus on help customers solve real-world connection challenges across hydraulic, automotive, HVAC, and industrial machinery applications .
Key Production Considerations for Adapter Fittings
As a professional adapter fitting manufacuture ， we clear know about the all notice part for carbon steel adapter fitting .
Material choose .
For this adapter fitting , mostly customer choose the AISI 1045 / C45 material .1045 steel is a medium carbon steel widely used in mechanical components and adapter fittings due to its excellent balance of strength, toughness, and machinability.Compared with low-carbon steels like 1018 or 1020, 1045 provides higher strength and better wear resistance while maintaining sufficient toughness, making it suitable for parts under moderate to high mechanical loads.
Thread choose
Adapter fittings usually come with male threads, female threads. Mostly customer choose the design for outer thread is tapered thread ,Inner thread is straigh thread.
Sometimes you choose the right pipe fitting manufacuture ,then the production will easy . But once you choose the cnc supplier without adapter fitting experience .It is easy have a thread complain when you get the thread pipe fitting .
| Thread Type (螺纹类型) | Type (类型) | Taper Ratio (锥度比) |
|---|---|---|
| NPT (National Pipe Taper) | Tapered | 1:16 |
| NPTF (National Pipe Taper Fuel) | Tapered | 1:16 |
| BSPT (British Standard Pipe Taper) | Tapered | 1:16 |
| BSPP (British Standard Pipe Parallel) | Parallel | N/A |
| Metric Thread (M) | Parallel / Tapered | Depends on standard |
| JIC (Joint Industry Council) | Tapered 37° Flare | N/A |
| SAE (Society of Automotive Engineers) | Tapered | Depends on standard |
Real case for adapter fitting
There are two hidden mistakes for this drawing easy happen .
1- Surface problem. Carbon steel material ,round bar is easy get rust in short time .Even though you get the New production material .
Compare use the raw material high risk problem , we choose Sandblasting to protect the surface
2-BSPT thread problem . This is a tapered thread , before zinc plated and after zinc plated, for example , Metirc thread after zinc plated , Zinc Plating Thickness is 5 um . it means total add 0.01MM . It is too samll to consider the thickness of thread .
For tapered thread , must rest 0.5-1.5mm space for BSPT thread , products threads need smaller before zinc plated. Then after zinc plated , adapter fitting can be suitable for go gauge .
The experience we study from the cnc machinery and supply adapter fitting for several customers with different type thread.
FAQs
About Custom Adapter Fittings
What is the MOQ for custom adapter fittings?
Moq is 2000pcs/order .
Can you produce according to samples?
Yes , supply samples or drawings can custom pipe fitting with economy price .
What thread standards do you support?
We are familar with differnt type threads, include NPT , NPTF , BSPP, BSPT , G,Metric,M etc.
How do you control thread accuracy?
What is the lead time?
2000pcs is 20 days ,5000pcs is 30 dyas . 10000pcs is 35 days . Based on your quantity we will give you the detail lead time .
Conclusion
As a custom adapter fitting manufacuture , we are familiar to know how to avoid mistake in cnc turning process , from raw material ,surface treatment , thread detail .
We have experience for different demand with economy price . if you get interested , could contact us yuhuan hongqian .
