|
1. Features of
Water Pipes and Joints
 |
Water pipes and hot water pipes supply drinking
water and heated water. Also the outside of
the pipes are exposed to the elements. Therefore the pipes
must have excellent corrosion resistance and be easy to
install. But above all, the pipes must be hygienically
safe for humans. For these reasons, the Korean government
recently announced the "obligatory use of corrosion
resistant pipes" to secure safe water. |
|
 |
Factors to Consider When Selecting
Water Pipe Materials
|
|
Status of Water Pipes Network (as of 1999)
|
| (Water Pipes, Unit:
km) |
|
Areas
|
Total
|
Stainless Pipe
|
PVC
Pipe
|
Cast Iron Pipe
|
Copper Pipe
|
Galvanized Steel Pipe
|
Others
|
|
National Average
|
1,731,978
|
799,520
|
575,367
|
32,072
|
12,808
|
809
|
311,402
|
|
Seoul
|
197,785
|
195,435
|
-
|
-
|
2,350
|
-
|
-
|
|
Busan
|
121,178
|
68,615
|
-
|
-
|
-
|
-
|
52,563
|
|
Daegu
|
131,167
|
89,908
|
-
|
-
|
-
|
-
|
41,259
|
|
Incheon
|
63,567
|
63,343
|
50
|
-
|
-
|
-
|
170
|
|
Gwangju
|
57,694
|
7,360
|
48,248
|
2,086
|
-
|
-
|
-
|
|
Daejon
|
8,616
|
7,829
|
787
|
-
|
-
|
-
|
-
|
|
Ulsan
|
19,854
|
17,282
|
-
|
1767
|
-
|
805
|
-
|
|
Gyeonggi
|
250,945
|
227,041
|
13,496
|
9,101
|
-
|
-
|
1,307
|
|
Gangwon
|
85,813
|
1,450
|
27,840
|
1,257
|
10,458
|
-
|
44,808
|
|
Choongbook
|
50,530
|
1,244
|
26,152
|
4,145
|
-
|
-
|
18,989
|
|
Choongnam
|
37,664
|
4,228
|
33,034
|
300
|
-
|
-
|
102
|
|
Junbook
|
98,343
|
117
|
97,959
|
267
|
-
|
-
|
-
|
|
Junnam
|
125,296
|
1,958
|
107,656
|
354
|
-
|
-
|
15,328
|
|
Gyeongbuk
|
235,745
|
104,303
|
98,830
|
1,928
|
-
|
-
|
30,684
|
|
Gyeongnam
|
126,390
|
9,407
|
104,029
|
10,867
|
-
|
-
|
2,087
|
|
Jeju
|
121,391
|
-
|
17,286
|
-
|
-
|
-
|
104,105
|
| Data: Ministry of Environment, Water
Supply Statistics 1999, 2000. |
|
|
