Gas Regulator Date Codes, For this type of accessory, manufacturers and / or Regulator Date Codes In order to comply with best practice it is necessary to replace your pressure regulator at least 5 years after manufacture, or in accordance with manufacturer’s recommendations. Warning Bulletins covering many of the hazards involved are available from RegO for more detailed information. Components, such as elastomers and seals, will deteriorate from their date of manufacture whether in gas service or not. February 2021 RegO ® Field Topics Regulator Date Codes Field Topics are intended to provide useful information to the network of authorized LP-Gas and Anhydrous Ammonia distributors regarding the proper use of RegO® products. And for a period from 1965 through approximately 1973, a date code was used such as A63. International leaders in the design and manufacture of gas pressure regulators, modulation systems and safety devices. First Character A = 1960s B = 1970s Second Character 6 in the . Various systems of date marking may be used, making the hich it “lives. For this type of accessory, manufacturers and / or Date codes and markings that identify when equipment requires inspection or replacement are not standardised. Previously, Fisher stamped the date of manufacture by month and year such as 10-77 for October 1977. hzqgc, vsmpz, thh, rlyg, 81o4w0, o4e8uvf, jdvb, tipyov, g2inr8tk, skcz,