Well rings with a bottom 3400

Rings with a bottom at installation of survey, sewer and drainage wells. Due to the ease of installation are in great demand in the private sector, primarily to create septic tanks. The main purpose of well rings with a bottom is creation of wells and wells for private houses. Their often
to use in construction of communication systems: the sewerage, the gas pipeline, drainage, a water supply system. They are thermal for the construction of tunnels for telephone, electrical and electrical networks. In country houses, reinforced concrete rings with a bottom are used to create sewage treatment plants.

The ring with the bottom of the FREJA system has thickened walls that allows to lay a well up to 20 m deep.

The protective system of low production is made of polyethylene pressure (PNT) according to GOST 16338-85, is intended for ensuring durability (not less than 50 years) and water tightness of sewer tray days and pipes at operation in the conditions of action of pipes of strongly 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.