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.

Arrangement of rainwater pipeline networks is the most important aspect of city and road construction. Effective drainage of rainwater prevents flooding of buildings, roads, cars and prevent serious financial losses. NTT fiberglass pipes are a universal solution to any problem related to rainwater drainage.

Large diameter pipes (~ up to 4000 mm) are used to ensure efficient water removal during intensive showers and spring snowmelt, NTT offers GRP pipes with diameters from 300 to 4000 mm with coupling joints, providing maximum cost-effectiveness and minimum construction time.

When constructing new pipelines in developed city infrastructure the most effective solution is to use microtunneling technology, NTT offers GRP jacking pipes for microtunneling with diameters from 300 mm to 2500 mm.

The microtunneling 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 development.
Should old, worn-out sewage collectors be restored, GRP pipes for rehabilitation are an effective and reliable solution due to their high characteristics and the possibility of intermediate diameter production. It provides maximum diameter reduction of the existing collector and the carrying out rehabilitation procedures without reducing the flow capacity due to the smooth inner wall surface.
GRP pipes are not subject to cold deformation, have high mechanical characteristics, have low friction ratios, linear heat expansion (2.5 × 10^-5, °С^-1) and heat conductivity (0.3 W/m × K), during installation no welding is required. Due to the smooth inner surface GRP pipes provide maximum flow capacity. Coupling of pipes allows you to reduce the laying time significantly.

 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 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.

NTT also supplies complete effluent treatment systems, storage tanks, oils/petrol separators, sand catchers, sewage pumping stations, septic tanks, manholes.

Properties:

The diameter (DN) of NTT fiberglass pipes is determined by the inside size and measured in millimeters. The range of 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 of the pipe. 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).