Gas separators are intended for cleaning of natural and associated gas from condensed liquid and mechanical impurities. Input gas separators with an operating pressure of more than 6.3 MPa are intended for previous gas cleaning; final cleaning is carried out in gas separators of second category under the pressure up to 8,8 Мпа. Gas-oil separators of horizontal-shell-type are intended for degassing of oil and associated gas cleaning. The separators are made of carbon and alloy steels. Separators can be installed in all climatic zones