Parveen industries pvt. Ltd. Designs and manufactures hammer unions. The hammer unions falls in the category of the treating irons, unions, swivels and circulating heads. Parveen industries pvt. Ltd. Is an iso 9001: 2000 certified company. The hammer unions are made from raw materials in the form of forgings or castings in accordance with service requirements in sizes 1 to 12 inch with ratings up to 20,000 psi cold working pressure. In the hammer unions acme thread and line pipe threads are gauged by standard plug & ring gauges.
The conical and spherical surfaces of the female and male subs respectively form an effective metal-to-metal seal in case of low pressure services. For medium pressure mostly a `0` ring is provided in the male sub in addition to the metal to metal seal. For high pressure a lip type seal ring is provided for primary seal in the female sub. The seal protects the secondary metal to metal seal from corrosion and limits fluid flow turbulence. For sour service applications viton seals are provided.
