Products

Threaded fittings ANSI/ASME B31.1-3 little-thickness Meceprim®

As complement to the forged fittings, made in accordance with ASME B16.11, MECESA announces the addition to its range of fittings of the MECEPRIM SERIES, our intention being to increase the number of possibilities insofar as screwed end fittings produced from forgings or barstock are concerned. In some cases, we have decreased the wall thickness and, therefore, have indicated the maximum working pressure for each fitting as determined by ASME B31.1 standards.





  • Standard production fittings are made in three types of materials: 316 Stainless steel, carbon steel and brass. On special order, we can furnish in other materials, such as 304 stainless, Hastelloy, Inconel, etc...
  • Stainless steel fittings are delivered pickled and passivated; and in carbon steel are subjected to a phosphate treatment and pickled brass.
  • Connections are screwed and range between 1/8" through 1".
  • Have been carefully designed so as to comply with the data given in this catalogue and with ASME B31.1 and ASME B31.3 standards; with manufacturing controlled so as to produce a high quality fitting.
  • Screweld connections are either NPT according to ANSI/ASME B.1.20.1; BSPT per ISO 7 or BSP meeting DIN 3852-B.
  • Following indications stated in the ASME B31.1 standard, all Meceprim accessories are marked, in accordance with MSS-SP25.

Excellent machining of the thread in the connections guarantees a union and visual aspect of great quality. We have standard materials, dimensions and connection types, but we have other specials not cataloged, to facilitate the request of any modification of our standard product.





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