Pvc is a material resistant to the vast majority of inorganic chemicals such as acids; oils and alcohols it is also resistant to abrasion; to impacts and is a fully recyclable product. contrary; the esters; ketones; pyridine; carbon sulfide and other solvents soften or dissolve it. it is a thermoplastic material so; by increasing its temperature; it softens and when it cools it hardens. there are varieties of pvc pipes depending on the use we want to give and; among them; we found the pvc-u under pressure. if you want to know more about this element; we explain what is the pressure pvc pipe 1. glued pipe. the diameters of the outer pipe are 20; 25; 32; 40; fifty; 63; 75; 90; 110; 125; 150; 160; 180 and 200 mm there are more measures; but they are usually industrial type