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