Tantalum lined carbon steel tube sheets TUV APPROVED Pressure tube side -1/4 bar @ 170 degrees C (volume 122 liter), pressure shell side 4 bar @ -17/40 degrees C (volume 225 liter) Expansion joint manufactured by DeDietrich, serial number 27031, internal pressure rated -1/4 bar @ 170 degrees C (volume 67 liter), openings (1) DN80 and (1) DN150, second head: manufactured by DeDietrich, serial number 27030, internal pressure rated -1/4 bar @ 170 degrees C (volume 82 liter), openings (1) DN80 and (1) DN250