Thermal Expansion in Open Installation
Since TECHNO GREEN & TECHNO UV pipes must have enough space to expand, an expansion control must is much needed for straight and long pipes. TECHNO GREEN & TECHNO UV- pipes for cold water and heating plants makes this possible.
Expansion Co-Efficient:
- For Glass fiber Reinforced PP-R pipe: α = 0,05 mm/mK
- For Standard PP-R Pipe: α = 0,15 mm/mK
Calculation of Change in Length:
∆L = α x L x ∆T
Where,
- ∆L = Change in length in mm
- L = Length of pipe
- ∆T = The difference between installation & Working Temperature
COMPARISON PPR & PPR-GF (Thermal Expansion)
| Description | PPR | PPR-GF | |
|---|---|---|---|
| L | Pipe length in meter | 10 | 10 |
| α | Linear expansion coefficient | 0.15 | 0.05 |
| Ti | Temperature installation (°C) | 30 | 30 |
| Tw | Temperature working (°C) | 70 | 70 |
| ∆T | Ti – Tw | 40 | 40 |
| ∆L | Change in length (α x L x ∆T) | 60 | 20 |
From the above comparison the value ∆L reduced 3 times comparing with the normal PPR Pipes
PPR Anti-Microbial Multilayer Pipe
Description
INTRODUCTION
TECHNO PPR Pipes and fittings are made of Polypropylene Random Copolymer PP-R as per the standard ISO 15874 and DIN 8077. The Polypropylene is the most reliable polymer in the piping industry. This material has excellent characteristics rigidity, homogeneous joints, high temperatures resistance and impact resistance. Hence PPR pipes shall preferred for safe and reliable long-lasting installation in hot and cold-water distribution, Techno Plastic proves to be the most trusted piping system.
.
TECHNO ANTIMICROBIAL MULTI LAYER PIPE
Techno PP-R Antimicrobial Glass Fiber Reinforced Pipe (PP-R /PP-R GF/PP-R Antimicrobial) consist of three layers where the Inner layers made of a special antimicrobial Compound to protect the growth of aquatic microorganism in the water. The Inner layer made of PP-R and the middle layer is mixture of PP-R and Glass fiber raw material. (Outer layer – Green/ Middle layer – Red color / Inner layer – white color).
MAIN ADVANTAGES
of The PP-R ANTIMICROBIAL Pipe
01
The PP-R Antimicrobial pipe preferred for drinking water with more hygienic requirement where the schools, residential and hospitals. it ensures the high performance of anti-bacterium. Proven with external lab as per the standard BS6920-2 Class-6 “growth of aquatic microorganism test”
02
Low thermal expansion (α= 0.05).
03
Higher stiffness than standard PP-R pipe.
04
Larger support distance comparing with Regular PPR
05
Installation will be easier and faster. it does not require peeling of outer layer
06
Glass fiber PP-R pipes have thermal expansion co-efficient is almost equivalents to Aluminum stabi pipes, they can conveniently be used in the areas where aluminum pipes are used.
SPECIFICATIONS
of the product
Technical Specification:
PN 16 PIPES “3.2 / SDR 7.4 / PN 16”
| Product Number | Product Description | Outer Diameter | Inner Diameter | Wall Thick | T133020020 | Techno PP-R Multilayer Pipe 20mm -PN16 | 20 | 14.4 | 2.8 |
|---|---|---|---|---|
| T133020025 | Techno PP-R Multilayer Pipe 25mm -PN16 | 25 | 18 | 3.5 |
| T133020032 | Techno PP-R Multilayer Pipe 32mm -PN16 | 32 | 23.2 | 4.4 |
| T133020040 | Techno PP-R Multilayer Pipe 40mm -PN16 | 40 | 29 | 5.5 |
| T133020050 | Techno PP-R Multilayer Pipe 50mm -PN16 | 50 | 36.2 | 6.9 |
| T133020063 | Techno PP-R Multilayer Pipe 63mm -PN16 | 63 | 45.8 | 8.6 |
OPERATING CONDITION:
- For Cold water application: 24.5 bar at 20°C
- For Hot water application : 8.1 bar at 70°C
- (Max 95°C for short peak)
This allowable operating pressure will be applicable for 50 years life span as per the standard DIN 8077 table 9 (SF-1.25)
PN 20 PIPES “2.5 / SDR 6 / PN 20”
| Product Number | Product Description | Outer Diameter | Inner Diameter | Wall Thick | T134020020 | Techno PP-R Multilayer Pipe 20mm -PN20 | 20 | 13.2 | 3.4 |
|---|---|---|---|---|
| T134020025 | Techno PP-R Multilayer Pipe 25mm -PN20 | 25 | 16.6 | 4.2 |
| T134020032 | Techno PP-R Multilayer Pipe 32mm -PN20 | 32 | 21.2 | 5.4 |
| T134020040 | Techno PP-R Multilayer Pipe 40mm -PN20 | 40 | 26.6 | 6.7 |
| T134020050 | Techno PP-R Multilayer Pipe 50mm -PN20 | 50 | 33.4 | 8.3 |
| T134020063 | Techno PP-R Multilayer Pipe 63mm -PN20 | 63 | 42 | 10.5 |
| T134020075 | Techno PP-R Multilayer Pipe 75mm -PN20 | 75 | ?? | ?? |
| T134020090 | Techno PP-R Multilayer Pipe 90mm -PN20 | 90 | ?? | ?? |
| T134020110 | Techno PP-R Multilayer Pipe 110mm -PN20 | 110 | ?? | ?? |
| T134020160 | Techno PP-R Multilayer Pipe 160mm -PN20 | 160 | ?? | ?? |
OPERATING CONDITION:
- For Cold water application: 30.9 bar at 20°C
- For Hot water application : 10.2 bar at 70°C
- (Max 95°C for short peak)
This allowable operating pressure will be applicable for 50 years life span as per the standard DIN 8077 table 9 (SF-1.25)
SPECIFICATIONS
of Raw Material
Physical Properties:
| PHYSICAL PROPERTIES "Poly Propylene" | Values | Unit | Melt Index (230℃, 2.16 kg) | 0.25 | g/10min |
|---|---|---|
| Density | 0.9 | g/cm3 |
| Tensile Strength at Yield | 270 | Kg/cm2 |
| Flexural Modulus | 9000 | Kg/cm2 |
| Notched Izod Impact Strength (23℃ /-10℃) | N.B /5.0 | Kg.cm/cm |
| Rockwell Hardness | 75 | R-Scale |
| Heat Deflection Temperature | 90 | ℃ |
| Vicat Softening Point | 130 | ℃ |
| Mean Coefficient of Linear Thermal Expansion (0℃ - 80℃) | 1.5*10-4 | K-1 |