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Residential (housing) construction
NTT is a manufacturer of GRP pipes and tank facilities for sewage and water supply systems in housing construction. The products are manufactured in strict compliance with the regulatory and technical documentation and approved for application in Mosvodokanal, Vodokanal of St. Petersburg, Novosibirsk Gorvodokanal.
The use of new technologies is crucial in construction of pipeline systems and effluent treatment facilities in large cities. In modern construction: laying of hot and cold water supply systems, sewerage and rainwater drainage, heating systems for blocks of flats and private houses, time and quality are essential. NTT offers innovative products for the most modern methods of the utilities construction: microtunnelling, auger drilling, puncturing, etc. Pipe coupling allows to reduce the project time significantly.
The microtunnelling technology allows to lay underground pipeline systems of different diameters at depths from 2 to 80 m and with length up to 1500 m without damaging surface infrastructure and landscape along the laying route, including dense city building conditions. Steel, reinforced concrete or fiberglass pipes are used for microtunnelling.
GRP pipes are not subject to cold deformation, have high mechanical characteristics, have low ratios of linear heat expansion (2.5 × 10-5, °С-1) and heat conductivity (0.3 W/m × K), during installation do not require welding works.
For residential construction NTT offers the following range of products:
NTT "PRO". - Pipes for drinking water supply, delivered according to GOST R 54560, GOST R ISO 10467, GOST 32661, GOST 32871, GOST 33123, TU 22.21.21-003-99675234-2019.
NTT " CHEM". - pipes for sewage system, delivered according to GOST R 54560,
GOST R ISO 10467, GOST 32661, GOST R 55075, GOST 32871, GOST 33123, TU 22.21.21-004-99675234-2019.
NTT "JACKING" - jacking pipes for microtunneling, auger drilling, relining, delivered according to GOST R 54560, GOST R ISO 10467, GOST R 52748, GOST 32871, GOST 33123, TU 22. 21.21-004-99675234-2019, TU 22.21.21.21-003-99675234-2019, TU 2296-001-81652345-2013, TU 22.21.21.21-005-99675234-2017.
Also NTT supplies storage tanks, clarification filters, water disinfection filters, sewage pumping stations, septic tanks, manholes.
Properties:
The diameter (DN) of NTT fiberglass pipes is defined by the internal size and measured in millimeters. The range of pipe sizes is: DN 300 - 4000 mm;
The nominal ring stiffness (SN) of the pipes is measured in N/m² and varies in the following range: SN 5000 - 1 000 000 N/m²;
For the correct selection of the pipe type, it is important to know the ring stiffness. Normally this value is at least 10000 N/m². Fiberglass pipes are available in the following pressure types: PN 0.1 - 4.0 MPa (1 - 40 atm).
Other material
Road/railway construction
NTT produces GRP pipes "NTT ROAD" according to STO 99675234-001-2020, and successfully uses the products at the sites of such large organizations as Federal Road Agency and Russian Railways.
NTT ROAD pipes are used for laying under the embankments of roads of all categories, under railroads and airfield pavements. They are used to transport the effluents in mild and cold climate at the air temperature ranging from -60°С to +60°С. They are artificial culverts transporting small continuous or intermittent flows under road embankments. The pipes can be also used as crossing tunnels for people and animals.
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NTT ROAD pipes are used for laying under the embankments of roads of all categories, under railroads and airfield pavements. They are used to transport the effluents in mild and cold climate at the air temperature ranging from -60°С to +60°С. They are artificial culverts transporting small continuous or intermittent flows under road embankments. The pipes can be also used as crossing tunnels for people and animals.
Rainwater runoff (effluents)
NTT is a manufacturer of GRP pipes and tank equipment for rainwater drainage systems. The products are manufactured in strict compliance with the regulatory and technical documentation and approved for application in Mosvodokanal, Vodokanal of St. Petersburg, Novosibirsk Gorvodokanal.
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Industrial effluents treatment, treatment systems of household solid waste filtrate.
NTT is a manufacturer of integrated treatment facilities for household solid waste filtrate. The developed technology has a wide versatility, high technological efficiency and stability of the purification process over time
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