This standard applies to industrial pipeline fittings - shut-off ball and cone valves for nominal pressure Ru
GOST 9702-1987 Referenced Document
GOST 15150-1969 Machines, instruments and other industrial products. Modifications for different climatic regions. Categories, operating, storage and transportation conditions as to environment climatic aspects influence
GOST 24856-1981 Industrial pipeline fittings. Terms and definitions
GOST 9544-1993 Pipeline gate valves-rates of gates sealibility*, 1993-04-20 Update
GOST 9702-1987 history
1987GOST 9702-1987 Play and ball valves. Basic parameters