Group Founded at 1997 in Mashhad Iran. with below PRODUCTS: 1-PP pipes and fittings , GRP , GRVE and GRE ( Fiberglass ) pipes designed specifically for drinking water, raw water, petroleum, chemicals up to 32 bar pressure and 10000(pa) of stiffness in continuous and discontinuous types with coupling joints , bell-and-spigot joints , flange joints and restrained taper joints. Diameter 25-4000mm.
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Office: No. 167 - Be'sat Boulevard - Ahmadabad St. - Mashhad - Iran
Fax: 051-38430444
Phone: 051-38422783
Factory: Sanat 20 - Kavian Industrial Town - Freeman - Iran
Phone: 051-34693357
Postal code: 9176874378
Fax: 051-38430444
Communication with the technical department : jahanfanavari@gmail.com
Communication with sales engineering unit : aria.kavan@yahoo.com
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GRP PIPES AND FITTINGS
GRVE PIPES AND FITTINGS
GRE PIPES AND FITTINGS
GRP PORTABLE TANKS
GRP LARGE TANKS BUILT ON SITE
POLYPROPYLENE SEWER PIPE
SANITARY POLYPROPYLENE PIPE
GRP WINDOWS AND DOORS
GRP PULTRUSION PROFILES
GRP TUNNEL
MINERAL PROCESSING AND SILICA
URBAN FORNITURE
LINING AND COATING
MACHINERY FOR GRP PIPES AND INDUSTRIES
GRP LUMINAIR POLES
GRP POWER DISTRIBUTION POLES
GRP WELL PUMPING PIPES
GRP WELL CASING PIPES
MANHOLE
ENGINEERING SERVICES
As pioneers in the development of GRP infrastructure UTILITY tunnels, we take pride in introducing innovative technology for the transmission of power cables, water pipes, telephone cables, and optical fibers in both industrial and urban environments. Our GRP tunnels, as an advanced engineering product, have successfully set new standards in the field of infrastructure transmission worldwide.
We present these tunnels as a suitable and intelligent alternative to conventional concrete tunnels. With a lifespan of 150 years, hygiene and cleanliness, rapid installation due to their lightweight, and high resistance to weather conditions and environmental factors, our GRP tunnels stand out as an exceptional choice in the realm of infrastructure transmission.
The unique features of GRP tunnels include minimal expansion in response to temperature variations, high resistance to corrosion, and the absence of insulation requirements.
Additionally, the lightweight nature of these tunnels facilitates a highly efficient and speedy installation process, contributing significantly to cost and time savings in project execution.
Furthermore, extensive testing has demonstrated their resistance to internal and external forces, as well as severe electrical arcs.
We proudly declare ourselves as the inventors and the first manufacturers of these tunnels in Iran and globally. Having executed diverse projects in various dimensions, including up to a diameter of 3000 millimeters, utilizing this cutting-edge technology, we have established our position as pioneers in the field.
In conclusion, the GRP tunnels produced by us not only ensure safe and efficient infrastructure transmission but also symbolize technological and engineering advancements in the domain of infrastructure transmission.
COMPARISON BETWEEN GRP TUNNELS AND CONCRETE TUNNELS
NO |
SPECIFICTION |
MAXIMUM MARK |
PREFABRICATED CONCRETE TUNNELS |
ON SITE CONCRETE TUNNELS |
GRP TUNNELS |
1 |
GUARANTY |
10 |
NO GUARANTY 0 |
NO GUARANTY 0 |
HAS QUALITY GUARANTY
10 |
2 |
SPEED IN INSTALLATIONM |
10 |
SLOW 10m PER DAY 5 |
VERY SLOW 5m PER DAY 3 |
VERY FAST 30-40m PER DAY 10 |
3 |
WATERPROOFING |
5 |
VERY DIFFICULT 1 |
DIFFICULT 2 |
WATER PROOF 5 |
4 |
BRANCHING |
5 |
VERY DIFFICULT 2 |
VERY DIFFICULT 2 |
VERY EASY AND FAST 5 |
5 |
DURABILITY AND AGE |
10 |
20-30 YEARS RELATED TO SOIL AND WET 5 |
20-30 YEARS RELATED TO SOIL AND WET 5 |
50-100 YEARS 5 |
6 |
CHEMICAL RESISTANCE AGAINST SOIL AND WATER |
10 |
INSULATION LAYERS NEEDED INSIDE AND OUTSIDE 4 |
INSULATION LAYERS NEEDED lining and coating 4 |
CHEMICAL RESISTANT 10 |
7 |
DAMP AND MOISTURE INSIDE |
5 |
USUALLY HUMID 2 |
USUALLY HUMID 2 |
VERY DRY 5 |
8 |
EASY TO INSTALL , PREMIER IN ARC |
10 |
VERY HEAVY VERY DIFFICULT EACH METER IS 20 MTONS 3 |
CONCRETE MOLDING IS DIFFICULT IN DIRECT CHANGING (ARC) 5 |
VERY EASY BY GRP PIPES COUPLINGS OR GRP ELBOWS 10 |
9 |
EARTHQUAKE RESISTANCE |
10 |
CONCRETE NEEDS TO CALCULATE AND MAY BE CRACKED AND NO REPAIR COMPLETELY 4 |
CONCRETE NEEDS TO CALCULATE AND MAY BE CRACKED AND NO REPAIR COMPLETELY 4 |
GRP IS THE BEST MATERIAL IN EARTHQUAKE 10 |
10 |
REPAIRABLE |
10 |
NO REPAIR COMPLETELY 5 |
NO REPAIR COMPLETELY 5 |
REPAIRABLE 10 |
11 |
SUBSIDE |
10 |
VERY HEAVY CAN MAKE SUBSIDE EACH METERE ABOUT 20.000 KG 4 |
VERY HEAVY CAN MAKE SUBSIDE EACH METERE ABOUT 20.000 KG 4 |
VERY LIGHT NO SUBSIDE EACH METERE ABOUT 500-1000 KG 10 |
12 |
NATURAL DRAINAGE IN FLOOR |
5 |
SLOPE MAKING NEEDED 2 |
SLOPE MAKING NEEDED 2 |
NO NEED TO SLOPE MAKING IT IS CIRCULAR 5 |
13 |
NATURAL ASPIRATION |
5 |
DIFFICULT IT HAS HARD SURFACE 2 |
DIFFICULT IT HAS HARD SURFACE 2
|
EASY IT HAS SMOOTH SURFACE 5 |
14 |
WASHING INSIDE |
5 |
DIFFICULT IT IS HARD SURFACE 2 |
DIFFICULT IT IS HARD SURFACE 2 |
EASY IT IS SMOOTH SURFACE 5 |
15 |
FIRE RESISTANCE |
10 |
RESISTANT BUT NEEDS TO FIRE FIGHTING 8 |
RESISTANT BUT NEEDS TO FIRE FIGHTING 8 |
WITH SPECIAL RESIN OR COATING IS RESISTANT BUT NEEDS TO FIRE FIGHTING 5 |
16 |
EXPLOSION INSIDE |
10 |
RESISTANT BUT LIMITTED 10 |
RESISTANT BUT LIMITTED 10 |
RESISTANT BUT LIMITTED 7 |
17 |
AGAINST ELECTRIC ARC |
10 |
RESISTANT 10 |
RESISTANT 10 |
RESISTANT UP TO 80 KV AND FOR MORE VOLTAGE NEEDED GRP CASING 7 |
18 |
EXPENSES AND CHARGES |
30 |
MORE EXPENSIVE 60% THAN GRP 10 |
MORE EXPENSIVE 80% THAN GRP 5 |
VERY CHEAPER THAN CONCRETE SPECIALLY BECAUSE OF LONG PERIOD OF CONCRETE INSTALLATION 20 |
SUM OF MARKS |
170 |
79 |
75 |
149 |