4.SAE 45 degree taper angle male nipple
SAE (45 degree taper angle) this is a term used for pipe fittings with 45 degree taper angle or taper seat. This joint is usually used for soft copper pipes because the material is easy to machine into a 45 degree angle. This joint is suitable for low pressure applications - such as fuel lines and refrigeration lines. SAE 45 degree taper external thread can only be matched with SAE 45 degree taper thread. SAE external thread is straight and has a 45 degree conical seating surface. The SAE thread is also a straight thread and has a 45 degree conical seating surface. The seal is formed at the 45 degree conical seating surface. Some sizes of thread has the same thread as 37 degree taper angle. Therefore, the cone angle should be carefully measured to distinguish.
