5691 Setting Standards are hardened and precision ground to the API accuracy requirement of ± 0.0001″ between adjacent notches and ± 0.0002″ between nonadjacent notches. Standards for tapered threads are compensated for error in measuring lead parallel to the taper cone instead of parallel to the pipe axis.
Before using the lead gauge, it should be zeroed out with an Allen Lead Gauge Setting Standard (Template). The dial indicator should read zero when applied to the Setting Standard. If it does not, the sliding-beam lock screw should be loosened, the gauge adjusted to zero using the adjusting screw, and the lock screw tightened.
Setting standards for specific threads can be made. Please furnish complete thread data and prints.
Lead Gauge Settign Standards | ||
5691-A | Lead Standard | 8 & 10 TPI 3/4 TPF API Casing or Line Pipe |
5691-B | Lead Standard | 8 &10 TPI 3/8 TPF V Thread |
5691-AB | Lead Standard | 6 TPI 1 1/8 TPF A-B |
5691-D3 | Lead Standard | 11 ½ TPI ¾ TPF API Line Pipe |
5693-F | Lead Standard | 5 TPI 1 1/8 TPF V Thread |
5691-J- | Lead Standard | 5 TPI 1 ¼”TPF EX Line Csg |
5691-J-3 | Lead Standard | 6 TPI 1 ½”TPF EX Line Csg |
5691-K | Lead Standard | 5 TPI ¾ TPF API Buttress Casing |
5691-K-16 | Lead Standard | 5 TPI 1 TPF API Buttress Casing |
5691-L | Lead Standard | 4 TPI 2 TPF, RSC |
5691-M | Lead Standard | 4 TPI 3 TPF, RSC |
5691-N | Lead Standard | 5 TPI 3 TPF, RSC |
5691-P-4-A | Lead Standard | 3 ½ TPI 2TPF, H-90 |
5691-P-4-B | Lead Standard | 3 ½ TPI 3TPF, H-90 |
5691-P-4-C | Lead Standard | 3 TPI 1.25 TPF, H-90 SL |
5691-Q | Lead Standard | 5TPI 1 ½TPF 30 Degree Acme |
5691-R | Lead Standard | 6 TPI 3/4 TPF Improved Buttress Tubing |
5691-T-3 | Lead Standard 4 | TPI 1 ½ TPF RSC |
5691-X | Lead Standard | 5 TPI 2 TPF V Thread |
5692-R | Lead Standard | 5 TPI 1 ½ TPF OTIS Buttress |
5692-S | Lead Standard | 6 TPI Folsom .129 Step |
5692-V | Lead Standard | 8 TPI Folsom .100 Step |
5692-W | Lead Standard | 8 TPI Folsom .070 Step |
5693-F | Lead Standard | 5TPI 1-1/8 TPF V Thread |
5693-H | Lead Standard | 4TPI 1TPF, .038R RSC |
5693-Q | Lead Standard | 4TPI 1 ¼ TPF V Thread |