Ring FREJA KS PLAST. These reinforced concrete products are designed for the construction of water and sewage wells.

They are most often used for the construction of wells of such types as water well, sewer well (cesspool), gas, inspection wells. Different concrete rings with different diameters, weights and heights are used for different types of wells.

The protective shell is made of low-pressure polyethylene (PPP) according to GOST 16338-85, designed to ensure durability (at least 50 years) and waterproofing of sewer tray bottoms and pipes during operation under conditions inside pipes of highly aggressive environment to concrete (reinforced concrete). PNT is resistant to concentrated hydrochloric, carboxylic and fusible acids, oils, fats, alkalis, salt solutions, resistant to gasoline, low temperatures, ductile and has good impact resistance.