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Double shell and tube heat exchangers are designed for heating, cooling, condensation of fluid and gas media in technological processes of oil-refining, chemical, petrochemical and gas industries according to GOST, ASME, TEMA standards.
Technical specifications
Shell diameter, mm
Pressure, kgf/cm2
from 50
Length of heat exchanging tubes, mm
3000 - 6000
Grades of heat exchanging tubes, mm
19х2,11; 20х2; 25х2,5; 25х 2,77
Heat exchange surface, m2 75-355
Made of ASME materials
Made of GOST materials
Shell – low-alloy steel   SA 516 Gr70
Shell – low-alloy steel   16GS, 09G2S
Heat exchanging tubes – carbon steel according to SA 179
Heat exchanging tubes – steel 10, 20
Tube sheets – forging SA 350LF2
Tube sheets – forging IV gr. GOST8779 made of steel 09G2S; plate from steel 16GS; 09G2S


PZTM 2012-2023