Taper thread on these fittings have a sealant applied for extra protection against leaks. Also known as JIC (Joint Industrial Council) fittings, they provide a tight metal-to-metal seal on tubing that is flared to 37°. They are excellent corrosion resistance. Fittings require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.
1. The hydraulic connected thread has three types:NPT,NPTF and BSPT.
2. NPT,BSPT threads should be assembled with sealant.NPTF is metal to metal seal,but use sealant also.Sealants are available in various forms such as Teflon tape,paste and anaerobic gule etc.
3. Teflon tape,paste etc.,if applied improperly,they will pollute the oil of the hydraulic system,even jam the system.
4. The seal of the small thread is better than large.In general the seal of less than 3/4”are good.
5. The connect will compact when the taper thread for straight fitting,if for eblow or tee or cross fittings,the assemble angle is difficult to contron,so sugguest that the adjustable stud end fittings should be used,for example ISO6149,ISO11926 etc..
Note:Nut and sleeve should be ordered speparately.The nut NB200 and sleeve NB500 is suitable for metric tube,the nut NB200 and sleeve NB300 is suitable for inch tube.
High quality hydraulic fitting can satisfy your different needs with its special quality and features.
1.high quality Zinc plated,Zn-Ni plated,Cr3,Cr6 plated.
2.high precision.all edges without burrs,brake sharp edges.
5. Material: iron, carbon steel, stainless steel, other metals
6.Standard / specification: Standard or as per drawing and samples (OEM)
7. Size: as per customers' requests
Customized service: We are specialized in all kinds of hydraulic hose fittings,adaptors,ferrules,flanges,fitting accessories.
1. Delivery:As general,we can guarantee the delivery within one month.
2. Port of loading: Ningbo or ShanghaiSamples Fee: We can offord the samples fee.