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Product details

PP-R pipe for water supply
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PP-R pipe for water supply

U.S.＄0.00
U.S.＄0.00
U.S.＄0.00
U.S.＄0.00
Weight：0.00KG
压力等级：
尺寸：
安全系数：
Description

Performance:

Item

Index

Density g / cm (20 ℃)

0.9

Elastic modulus 20 ℃ Mpa

800

Thermal conductivity 20 ℃ w / m ℃

0.24

The thermal expansion coefficient of 1 / K

1.5×10 -4

Longitudinal reversion rate%

≤2

 

Charpy impact test 0 ℃ ± 2

<10%

 

Hydraulic Test

Short-term stress of 16MPa 20 ℃ .1h ring

No leakage

No leakage

Short-term stress 3.5MPa 95 ℃ .1000h ring

No leakage

No leakage


Pressure rating:

        PP-R pipe has S5, S4, S3.2, S2.5 four grades series, usually hot water pipes selection S3.2, S2.5 two of the series, the cold water pipe selection S5, S4, S3.2 three series, in the design of piping systems according to different requirements of desirable safety factor 1.25 or 1.5.
Pipe series S correspondence with the table, PN

Pipe Series

S5

S4

S3.2

S2.5

Pipe Series

S5

S4

S3.2

S2.5

Nominal MPa(C=1.25)

1.25

1.6

2.0

2.5

Nominal MPa(C=1.5)

1.0

1.25

1.6

2.0


Size:

Nominal diameter

The average outer diameter

Nominal wall thickness （en）

dn

Den min

Den max

S5

S4

S3.2

S2.5

M

20

20.0

20.3

2.0

2.3

2.8

3.4

4

25

25.0

25.3

2.3

2.8

3.5

4.2

4

32

32.0

32.3

2.9

3.6

4.4

5.4

4

40

40.0

40.4

3.7

4.5

5.5

6.7

4

50

50.0

50.5

4.6

5.6

6.9

8.3

4

63

63.0

63.6

5.8

7.1

8.6

10.5

4

75

75.0

75.7

6.8

8.4

10.3

12.5

6

90

90.0

90.9

8.2

10.1

12.3

15.0

6

110

110.0

110.0

10.0

12.3

15.1

18.3

6

160

160.0

161.5

14.6

17.9

21.9

 

6


Main purpose:
1, building hot and cold water systems, including central heating systems;
2, building heating systems, including flooring, siding and radiant heating systems;
3, can be directly purified drinking water supply systems;
4, Central (central) air-conditioning systems;
5, transfer or discharge of chemical mediators and other industrial piping systems.


Selection principles:
1, note the use of the pipeline overall coefficient C (ie safety factor) to determine:
General situations, and long-term continuous so that the temperature <70 ℃, optional C = 1.25; on important occasions, and the long-term continuous use temperature ≥70 ℃, and possibly a long time to run at higher temperatures, optional C = 1.5;
2, for the cold water (≤40 ℃) system, the choice of P.N1.0 ~ 1.6MPa pipes and fittings; for hot water system used ≥PN2.0MPa pipes and fittings.
3. After considering the above three principles, pipe fittings shall be not more than SDR SDR pipe wall thickness of the pipe that is not less than the same size pipe wall thickness.


Features:
1, health, non-toxic, no rust, never fouling.
2, high temperature, high pressure resistance.
3, using hot melt connection pipes, fittings homogenization integrated, safe, reliable and never leak.
4, low thermal conductivity, good insulation properties.
5, light weight, easy handling, low construction strength.
6, the pipe wall is smooth, small pressure loss, flow speed.
7, piped noise.
8, the product soft color, appearance, indoor surface mounted, concealed can be.
9, concealed simple, fast and low construction costs.
10, long service life under normal conditions, the service life of up to 50 years.