07/13/2020

NEXT POST
Gas Supply System For gas supply systems of cities and other settlements lay a gas pipeline of different pressure: low (up to 0, 005 MPa) - in homes and public buildings, public catering enterprises, as well as built-in public and residential buildings heating boiler and consumer services (laundry, hairdressing). Medium (0, 005 to 0, 3 MPa) - from agricultural and utilities built into the building. High-II category (to 0, 6 MPa) - industrial enterprises, as well as separately located agricultural and municipal enterprises, boiler. High-Category I (1, 2 MPa) - the industrial enterprises with technological necessity or feasibility study. According to the location of cities and towns of gas pipelines are divided into external (street, intra, inter-settlement, mezhkvartalnye, interdepartmental) and internal (in-house, intrashop). Just as water supply, gas pipeline network can be a dead end, circular and mixed. For the installation of gas pipelines using steel pipes. Outside the settlements, as well as in small towns and villages with low saturation as utilities can be applied to plastic pipes. Gas control points (GCP), a low-pressure gas pipeline installed at branches of medium-pressure reduce the gas pressure down to 0, 005 MPa (Fig. 103) SRC works as follows: the gas comes from the network by entering into a gas filter and into a safety shut-off gas valve, which automatically interrupts the flow of gas at increasing pressure on the input above or below the limit values. The pressure regulator reduces...