- Country of manufactureRussia
ZKL3 200-40 latch
The functional purpose is the classification unit characterizing functions for which performance the pipeline fittings are intended. The pipeline fittings happen locking, regulating, locking regulating, the return, safety, distributive and mixing, fazorazdelitelny, protective. As there are no accurate criteria distinctions between the locking, regulating and locking regulating fittings these fittings usually unite in one group.
On pipeline fittings not only state standards (GOST, GOST P), but also various industry documents belong to the normative and technical documents (NTD): standards of the enterprise (ST), leading documents (LD), specifications (S), industry standards (OST). However the main are state standard specifications. They can be divided into groups, each of which establishes respectively: 1) General specifications necessary for development and production of fittings; 2) Requirements of reliability, safety, health protection and ergonomics; 3) Uniform terminology and system of designations; 4) Key technical parameters of the equipment; 5) Interchangeability conditions. It should be noted that, being guided by normative and technical documents, search of foreign analogs for the domestic equipment by comparison of technical characteristics is run. Information stated in state standard specifications is necessary for each professional occupied in the production, construction, municipal services and other spheres connected with operation, repair or construction of pipelines.