Pull out resistant pipe coupling for all metal pipes to meet the highest standards Diameter 30.0 to 609.6 mm The temperature ranges indicated are based on the use of EPDM sealing sleeves. EPDM and NBR sealing sleeves are used by default. Various coupling sizes also available with H-NBR sealing sleeves (Temperature range: -20°C to 125°C). All diameters and designs available plus accessories (strip inserts, stiffening rings, fitting pliers, tensioning straps) can be obtained from the technical manual. Construction and design of the STRAUB pipe couplings comply with the directives of DIN 86128-1 and 86128-2.