Hammer unions manufactured under the requirements of API SPEC 7HU2-2022, are only to be considered interchangeable with hammer unions also manufactued to the requirements of this standard (API SPEC 7HU2-2022). Hammer unions manufactured under the requirements of API SPEC 7HU2-2022 are assumed to not be interchangeable with hammer unions not conforming toAPI SPEC 7HU2-2022.
| Figure | Size | Thread Size-Pitch Type-Class | TPI | ASME |
| Fig 602 | 1″ | 2-7/16″-6 ACME-2G | 6 | B 1.5 |
| 1.5″ | 3-3/8″-4 ACME-2G | 4 | B 1.5 | |
| 2″ | 3 13/16″- 3 STUB ACME -2G | 3 | B 1.8 | |
| 3″ | 5 3/8″- 3 STUB ACME-2G | 3 | B 1.8 | |
| 4″ | 6 1/4″- 3 STUB ACME -2G | 3 | B 1.8 |
Threads shall be in accordance with ASME B1.5 or ASME B1.8 as applicable. FYOU PMEC offers a complete line of standard and special General Purpose Acme Thread Gages per ASME B1.5 and ASME B1.8,Acme Thread Gauges are used to gage internal and external threaded hammer unions. All Acme Thread Gages are priced on request, please e-mail to : sales@fyougauges.com
Instructions:
1）Implementation of standards：API SPEC 7HU2-2022， ASME B1.5 or ASME B1.8
2）Material: GCr15， Measuring surface hardness 60-63HRC;
3）Comes with the calibration certificates, ISO 17025 certified，Traceable to NIM or NIST, Availiable for Audit.
How to order?
For example:
Pls mark : For 1″ Fig 602 Thread Size: 2-7/16″-6 ACME-2G GO/NO GO, Ring or Plug Gage
and E-mail to: sales@fyougauges.com
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