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=Short List= | =Short List= | ||
*GHT - garden hose, used also in fire hose [https://rawhidefirehose.com/blog/guide-fire-hose-couplings-threading/#:~:text=NH%2FNST%20Threads,also%20referred%20to%20as%20NH.]. Same threads per inch as NPT, but not tapered. | |||
*NPSM - National Pipe - Straight Mechanical - closure attained by 30 degree compression fit with a swivel - [http://pressureconnections.com/customer/prcoco/customerpages/literature/Steel_NPSM_Female_Pipe_Swivel.pdf]. Only NPT with chamfer will seal properly with NPSM - other NPT threads may not seal. | *NPSM - National Pipe - Straight Mechanical - closure attained by 30 degree compression fit with a swivel - [http://pressureconnections.com/customer/prcoco/customerpages/literature/Steel_NPSM_Female_Pipe_Swivel.pdf]. Only NPT with chamfer will seal properly with NPSM - other NPT threads may not seal. | ||
*NPT - National Pipe - tapered | *NPT - National Pipe - tapered | ||
Revision as of 15:46, 19 March 2024
Short List
- GHT - garden hose, used also in fire hose [1]. Same threads per inch as NPT, but not tapered.
- NPSM - National Pipe - Straight Mechanical - closure attained by 30 degree compression fit with a swivel - [2]. Only NPT with chamfer will seal properly with NPSM - other NPT threads may not seal.
- NPT - National Pipe - tapered
- R, G - [3]
- BSPP - British Pipe thread parallel
- BSPT - British Pipe thread tapered
- Bolt thread - fine and course
- Metric bolt - fine and course
- Metric pipe straight
- Metric pipe parallel
- UN - [4]
- SAE - with o-rings
Long List
Probably hundreds exist all together.