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26 tpi thread
| Peter Howell 1 | 01/04/2022 16:44:20 |
| 44 forum posts 4 photos | I need to make an adaptor to pressure test my loco boiler. The safety valve has a 26tpi thread. Would this be Brass or Cycle ? Both have 26 tpi, brass is 55 deg. cycle 60 |
| Howard Lewis | 01/04/2022 17:02:13 |
| 7227 forum posts 21 photos | PURELY a guess, but B S Brass would be my choice. Can you cut pieces of bar with each of the threads to use as a gauge? 1/4 BSF is 26 tpi, is Whit thread form same as B S B, if that is any help. Howard |
| Clive Brown 1 | 01/04/2022 17:54:27 |
| 1050 forum posts 56 photos | After many years of reading ME through the heyday of designs by Martin Evans, Don Young etc, I have never seen a BSC thread specified for a steam application. Always Brass. |
| Peter Howell 1 | 01/04/2022 18:07:47 |
| 44 forum posts 4 photos | Thanks. I thought it probably would be brass but I thought I'd check.
|
| Brian Morehen | 01/04/2022 20:33:50 |
 191 forum posts 11 photos | Almost Certain British standard brass as they are all 26 threads if i remeber right
Regards Bee.M |
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All Forum Topics > General Questions > 26 tpi thread