You can rest assured to buy Pengfa Steam Insulation Steel Pipe from our factory. T In the thermal insulation steel pipe production line, the steel pipe is first sent to the cleaning equipment for cleaning, and then into the preheating equipment, heating to a certain temperature, so as to spray the anti-corrosion layer. Next, the anti-corrosion layer is coated on the outer wall of the steel pipe in the spraying equipment. The anticorrosive layer can be made of polyethylene, epoxy, three-layer PE and other materials, so that the steel pipe has good resistance to corrosion.
You are welcomed to come to our factory to buy the latest selling, low price, and high-quality Pengfa Steam Insulation Steel Pipe. We look forward to cooperating with you. The insulation is typically made from a high-density polyethylene (HDPE) material, which has good thermal properties and can withstand high temperatures. The outer layer of the insulation is usually protected by a jacket made of either steel or HDPE.
The spiral shape of the pipe allows it to be easily installed underground, making it a popular choice for pipelines used in oil and gas fields, as well as for water supply systems. Overall, Steam Insulation Steel Pipe are a reliable and efficient choice for transporting fluids in a wide range of industries, including energy, mining, and construction.
|
Diameter |
mm Diameter |
mm Wall thickness |
Kg/m Single weight |
(mpa) Minimum test pressure |
||||
|
A L210 |
B L245 |
X42 L29 |
X46 L320 |
X52 L360 |
||||
|
20" |
508 |
5.6 |
69.38 |
2.8 |
3.2 |
5.8 |
6.3 |
7.1 |
|
6.4 |
79.16 |
3.2 |
3.7 |
6.6 |
7.3 |
8.2 |
||
|
7.1 |
87.70 |
3.5 |
4.1 |
7.3 |
8.1 |
9.1 |
||
|
7.9 |
97.43 |
3.9 |
4.6 |
8.1 |
9.0 |
10.1 |
||
|
8.7 |
107.12 |
4.3 |
5.0 |
8.9 |
9.9 |
11.1 |
||
|
9.5 |
116.78 |
4.7 |
5.5 |
9.8 |
10.8 |
12.1 |
||
|
10.3 |
126.41 |
5.1 |
6.0 |
10.6 |
11.7 |
13.1 |
||
|
11.1 |
136.01 |
5.5 |
6.4 |
11.4 |
12.6 |
14.2 |
||
|
11.9 |
145.58 |
5.9 |
6.9 |
12.2 |
13.5 |
15.2 |
||
|
12.7 |
155.12 |
6.3 |
7.4 |
13.1 |
14.4 |
16.2 |
||
|
14.3 |
174.10 |
7.1 |
8.3 |
14.7 |
16.2 |
18.2 |
||
|
15.9 |
192.95 |
7.9 |
9.2 |
16.3 |
18.0 |
20.3 |
||
|
24" |
609.6 |
6.4 |
95.26 |
2.6 |
3.1 |
5.5 |
6.0 |
6.8 |
|
7.1 |
105.56 |
2.9 |
3.4 |
6.1 |
6.7 |
7.5 |
||
|
7.9 |
117.30 |
3.3 |
3.8 |
6.8 |
7.5 |
8.4 |
||
|
8.7 |
129.00 |
3.6 |
4.2 |
7.4 |
8.2 |
9.2 |
||
|
9.5 |
140.68 |
3.9 |
4.6 |
8.1 |
9.0 |
10.1 |
||
|
10.3 |
152.32 |
4.2 |
4.9 |
8.8 |
9.8 |
11.0 |
||
|
11.1 |
163.93 |
4.6 |
5.3 |
9.5 |
10.5 |
11.8 |
||
|
11.9 |
175.51 |
4.9 |
5.7 |
10.2 |
11.2 |
12.6 |
||
|
12.9 |
187.06 |
5.2 |
6.1 |
10.9 |
12.0 |
13.5 |
||
|
14.3 |
210.07 |
5.9 |
6.9 |
12.2 |
13.5 |
15.2 |
||
|
15.9 |
232.94 |
6.6 |
7.7 |
13.6 |
15.0 |
16.9 |
||
|
30" |
762 |
6.4 |
111.20 |
2.3 |
2.6 |
4.7 |
5.2 |
5.8 |
|
7.1 |
123.24 |
2.5 |
2.9 |
5.2 |
5.8 |
6.5 |
||
|
7.9 |
136.97 |
2.8 |
3.3 |
5.8 |
6.4 |
7.2 |
||
|
8.7 |
150.67 |
3.1 |
3.6 |
6.4 |
7.0 |
7.9 |
||
|
9.5 |
164.34 |
3.4 |
3.9 |
7.0 |
7.7 |
8.7 |
||
|
10.3 |
177.98 |
3.7 |
4.3 |
7.6 |
8.3 |
9.4 |
||
|
11.1 |
191.58 |
3.9 |
4.6 |
8.1 |
9.0 |
10.1 |
||
|
11.9 |
205.15 |
4.2 |
4.9 |
8.7 |
9.6 |
10.8 |
||
|
12.7 |
218.69 |
4.5 |
5.3 |
9.3 |
10.3 |
11.6 |
||
|
14.3 |
245.68 |
5.1 |
5.9 |
10.5 |
11.6 |
13.0 |
||
|
15.9 |
272.54 |
5.6 |
6.6 |
11.7 |
12.9 |
14.5 |
||
|
32" |
812.8 |
6.4 |
127.30 |
2.0 |
2.3 |
4.1 |
4.5 |
5.1 |
|
7.1 |
141.10 |
2.2 |
2.6 |
4.6 |
5.0 |
5.7 |
||
|
7.9 |
156.84 |
2.4 |
2.9 |
5.1 |
5.6 |
6.3 |
||
|
8.7 |
172.56 |
2.7 |
3.1 |
5.6 |
6.2 |
6.9 |
||
|
9.5 |
188.24 |
2.9 |
3.4 |
6.1 |
6.7 |
7.6 |
||
|
10.3 |
203.88 |
3.2 |
3.7 |
6.6 |
7.3 |
8.2 |
||
|
11.1 |
219.50 |
3.4 |
4.0 |
7.1 |
7.9 |
8.8 |
||
|
11.9 |
235.09 |
3.7 |
4.3 |
7.6 |
8.4 |
9.5 |
||
|
12.7 |
250.64 |
3.9 |
4.6 |
8.2 |
9.0 |
10.1 |
||
|
14.3 |
281.65 |
4.4 |
5.2 |
9.2 |
10.1 |
11.4 |
||
|
15.9 |
312.54 |
4.9 |
5.7 |
10.2 |
11.3 |
12.7 |
||
|
36" |
914.4 |
6.4 |
143.24 |
1.8 |
2.1 |
3.7 |
4.0 |
4.5 |
|
7.1 |
158.79 |
2.0 |
2.3 |
4.1 |
4.5 |
5.0 |
||
|
7.9 |
176.52 |
2.2 |
2.5 |
4.5 |
5.0 |
5.6 |
||
|
8.7 |
194.22 |
2.4 |
2.8 |
5.0 |
5.5 |
6.2 |
||
|
9.5 |
211.90 |
2.6 |
3.1 |
5.4 |
6.0 |
6.7 |
||
|
10.3 |
219.51 |
2.8 |
3.3 |
5.9 |
6.5 |
7.3 |
||
|
11.1 |
247.15 |
3.1 |
3.6 |
6.3 |
7.0 |
7.9 |
||
|
11.9 |
264.72 |
3.3 |
3.8 |
6.8 |
7.5 |
8.4 |
||
|
12.7 |
282.27 |
3.5 |
4.1 |
7.3 |
8.0 |
9.0 |
||
|
14.3 |
317.27 |
3.9 |
4.6 |
8.2 |
9.0 |
10.1 |
||
|
15.9 |
352.14 |
4.4 |
5.1 |
9.1 |
10.0 |
11.3 |
||
|
17.5 |
386.88 |
4.8 |
5.6 |
10.0 |
11.0 |
12.4 |
||
|
Diameter |
mm Diameter |
mm |
Kg/m |
(mpa) Minimum test pressure |
||||
|
A |
B |
X42 |
X46 |
X52 |
||||
|
8.63" |
219.1 |
5.6 |
29.48 |
6.4 |
7.5 |
11.1 |
12.3 |
13.8 |
|
6.4 |
33.57 |
7.4 |
8.6 |
12.7 |
14 |
15.8 |
||
|
7.0 |
36.61 |
8.1 |
9.4 |
13.9 |
15.3 |
17.3 |
||
|
7.9 |
41.14 |
9.1 |
10.6 |
15.7 |
17.3 |
19.5 |
||
|
8.2 |
42.65 |
9.4 |
11.0 |
16.3 |
18.0 |
20.2 |
||
|
8.7 |
45.14 |
10.0 |
11.7 |
17.3 |
19.1 |
20.7 |
||
|
10.75" |
273.1 |
5.6 |
36.94 |
5.2 |
6.0 |
10.1 |
11.2 |
12.5 |
|
6.4 |
42.09 |
5.9 |
6.9 |
11.6 |
12.7 |
14.3 |
||
|
7.1 |
46.57 |
6.6 |
7.6 |
12.8 |
14.1 |
15.9 |
||
|
7.8 |
51.03 |
7.2 |
8.4 |
14.1 |
15.5 |
17.5 |
||
|
8.7 |
56.72 |
8.0 |
9.4 |
15.7 |
17.3 |
19.5 |
||
|
9.3 |
60.05 |
8.6 |
10.0 |
16.8 |
18.5 |
20.7 |
||
|
12.75" |
323.9 |
5.6 |
43.96 |
4.4 |
5.1 |
8.5 |
9.4 |
10.6 |
|
6.4 |
50.11 |
5.0 |
5.8 |
9.7 |
10.7 |
12.71 |
||
|
7.1 |
55.47 |
5.5 |
6.4 |
10.8 |
11.9 |
13.4 |
||
|
7.9 |
61.56 |
6.1 |
7.2 |
12.0 |
13.9 |
14.9 |
||
|
8.4 |
65.35 |
6.5 |
7.6 |
12.8 |
14.1 |
15.9 |
||
|
8.7 |
67.62 |
6.8 |
7.9 |
13.2 |
14.6 |
16.4 |
||
|
9.5 |
73.65 |
7.4 |
8.6 |
14.5 |
16.0 |
17.9 |
||
|
10.3 |
79.65 |
8.0 |
9.3 |
15.7 |
17.3 |
19.5 |
||
|
11.1 |
85.62 |
8.6 |
10.1 |
16.9 |
18.6 |
20.7 |
||
|
12.7 |
97.46 |
9.9 |
11.5 |
19.3 |
20.7 |
20.7 |
||
|
14.3 |
109.18 |
11.1 |
13.0 |
20.7 |
20.7 |
20.7 |
||
|
14" |
355.6 |
5.6 |
48.33 |
4.0 |
4.6 |
7.8 |
8.6 |
9.6 |
|
6.4 |
55.11 |
4.5 |
5.3 |
8.9 |
9.8 |
11.0 |
||
|
7.1 |
61.02 |
5.0 |
5.9 |
9.8 |
10.9 |
12.2 |
||
|
7.9 |
61.74 |
5.6 |
6.5 |
11.0 |
12.1 |
13.6 |
||
|
8.7 |
74.42 |
6.2 |
7.2 |
12.1 |
13.3 |
15.0 |
||
|
9.5 |
81.08 |
6.7 |
7.9 |
13.2 |
14.5 |
16.3 |
||
|
10.3 |
87.71 |
7.3 |
8.5 |
14.3 |
15.8 |
17.7 |
||
|
11.1 |
94.30 |
7.9 |
9.2 |
15.4 |
17.0 |
19.11 |
||
|
11.9 |
100.86 |
8.4 |
9.8 |
16.5 |
18.2 |
20.5 |
||
|
12.7 |
107.39 |
9.0 |
10.5 |
17.6 |
19.4 |
20.7 |
||
|
14.3 |
120.36 |
10.1 |
11.8 |
19.8 |
20.7 |
20.7 |
||
|
16" |
406.4 |
5.6 |
55.35 |
3.5 |
4.1 |
6.8 |
7.5 |
8.4 |
|
6.4 |
63.13 |
4.0 |
4.6 |
7.8 |
8.6 |
9.6 |
||
|
7.1 |
69.91 |
4.4 |
5.1 |
8.6 |
9.5 |
10.7 |
||
|
7.9 |
77.63 |
4.9 |
5.7 |
9.6 |
10.6 |
11.9 |
||
|
8.7 |
85.32 |
5.4 |
6.3 |
10.6 |
11.6 |
13.1 |
||
|
9.5 |
92.98 |
5.9 |
6.9 |
11.5 |
12.7 |
14.3 |
||
|
10.3 |
100.61 |
6.4 |
7.5 |
12.5 |
13.8 |
15.5 |
||
|
11.1 |
108.20 |
6.9 |
8.0 |
13.5 |
14.9 |
16.7 |
||
|
11.9 |
115.77 |
7.4 |
8.6 |
14.4 |
15.9 |
17.0 |
||
|
12.7 |
123.30 |
7.9 |
9.2 |
15.4 |
17.0 |
19.1 |
||
|
14.3 |
138.27 |
8.9 |
10.3 |
17.3 |
19.1 |
20.7 |
||
|
15.9 |
153.11 |
9.9 |
11.5 |
19.3 |
20.7 |
20.7 |
||
|
18" |
457.2 |
5.6 |
62.34 |
3.1 |
3.6 |
6.0 |
6.7 |
7.5 |
|
6.4 |
71.12 |
3.5 |
4.1 |
6.9 |
7.6 |
8.6 |
||
|
7.1 |
78.77 |
3.9 |
4.6 |
7.7 |
8.5 |
9.5 |
||
|
7.9 |
87.49 |
4.4 |
5.1 |
8.5 |
9.4 |
10.6 |
||
|
8.7 |
96.18 |
4.8 |
5.6 |
9.4 |
10.4 |
11.7 |
||
|
9.5 |
104.84 |
5.2 |
6.1 |
10.2 |
11.6 |
12.7 |
||
|
10.3 |
113.46 |
5.7 |
6.6 |
11.1 |
12.6 |
13.8 |
||
|
11.1 |
122.05 |
6.1 |
7.1 |
12.0 |
14.2 |
14.9 |
||
|
11.9 |
13062 |
6.6 |
7.7 |
12.8 |
14.2 |
15.9 |
||
|
12.7 |
139.15 |
7.0 |
8.2 |
13.7 |
15.1 |
17.0 |
||
|
14.3 |
156.11 |
7.9 |
9.2 |
15.4 |
17.0 |
19.2 |
||
|
15.9 |
172.95 |
8.8 |
10.2 |
17.2 |
18.9 |
20.7 |
||
|
Diameter |
mm |
mm Wall thickness |
Kg/m |
(mpa) Minimum test pressure |
||||
|
A L210 |
B L245 |
X42 L290 |
X46 L320 |
X52 L360 |
||||
|
42" |
1066.8 |
7.9 |
196.39 |
2.0 |
2.3 |
4.1 |
4.5 |
5.0 |
|
8.7 |
216.11 |
2.2 |
2.5 |
4.5 |
4.9 |
5.5 |
||
|
9.5 |
235.79 |
2.4 |
2.7 |
4.9 |
5.4 |
6.1 |
||
|
10.3 |
255.45 |
2.6 |
3.0 |
5.3 |
5.8 |
6.6 |
||
|
11.1 |
275.07 |
2.8 |
3.2 |
5.7 |
6.3 |
7.1 |
||
|
11.9 |
294.66 |
3.0 |
3.4 |
6.1 |
6.7 |
7.6 |
||
|
12.7 |
314.22 |
3.2 |
3.7 |
6.5 |
7.2 |
8.1 |
||
|
14.3 |
353.24 |
3.5 |
4.1 |
7.3 |
8.1 |
9.1 |
||
|
15.9 |
392.13 |
3.9 |
4.6 |
8.2 |
9.0 |
10.1 |
||
|
17.5 |
430.90 |
4.3 |
5.1 |
9.0 |
9.9 |
11.2 |
||
|
48" |
1219.2 |
8.7 |
259.66 |
1.8 |
2.1 |
3.7 |
4.1 |
4.6 |
|
9.5 |
283.35 |
2.0 |
2.3 |
4.1 |
4.5 |
5.1 |
||
|
10.3 |
307.01 |
2.1 |
2.5 |
4.4 |
4.9 |
5.5 |
||
|
11.1 |
330.63 |
2.3 |
2.7 |
4.8 |
5.2 |
5.9 |
||
|
11.9 |
354.23 |
2.5 |
2.9 |
5.1 |
5.6 |
6.3 |
||
|
12.7 |
377.79 |
2.6 |
3.1 |
5.4 |
6.0 |
6.8 |
||
|
14.3 |
424.82 |
3.0 |
3.4 |
6.1 |
6.8 |
7.6 |
||
|
15.9 |
471.73 |
3.3 |
3.8 |
6.8 |
7.5 |
8.5 |
||
|
17.5 |
518.51 |
3.6 |
4.2 |
7.5 |
8.3 |
9.3 |
||
|
54" |
1371.6 |
9.5 |
330.91 |
1.7 |
2.0 |
3.5 |
3.8 |
4.3 |
|
10.3 |
358.57 |
1.8 |
2.1 |
3.8 |
4.2 |
4.7 |
||
|
11.1 |
386.20 |
2.0 |
2.3 |
4.1 |
4.5 |
5.1 |
||
|
11.9 |
413.80 |
2.1 |
2.5 |
4.4 |
4.8 |
5.4 |
||
|
12.7 |
441.37 |
2.3 |
2.6 |
4.7 |
5.1 |
5.8 |
||
|
14.3 |
496.41 |
2.5 |
3.0 |
5.2 |
5.8 |
6.5 |
||
|
15.9 |
551.32 |
2.8 |
3.3 |
5.8 |
6.4 |
7.2 |
||
|
17.5 |
606.11 |
3.1 |
3.6 |
6.4 |
7.1 |
8.0 |
||
|
60" |
1524 |
9.5 |
378.70 |
1.5 |
1.7 |
3.0 |
3.4 |
3.8 |
|
10.3 |
410.38 |
1.6 |
1.9 |
3.3 |
3.6 |
4.1 |
||
|
11.1 |
442.04 |
1.7 |
2.0 |
3.6 |
3.9 |
4.4 |
||
|
11.9 |
473.66 |
1.8 |
2.2 |
3.8 |
4.2 |
4.7 |
||
|
12.7 |
505.26 |
2.0 |
2.3 |
4.1 |
4.5 |
5.1 |
||
|
14.3 |
568.35 |
2.2 |
2.6 |
4.6 |
5.1 |
5.7 |
||
|
15.9 |
631.31 |
2.5 |
2.9 |
5.1 |
5.6 |
6.6 |
||
|
17.5 |
694.15 |
2.7 |
3.2 |
5.6 |
6.2 |
7.0 |
||
|
72" |
1828.8 |
12.7 |
568.83 |
1.7 |
2.0 |
3.6 |
4.0 |
4.5 |
|
14.8 |
639.93 |
2.0 |
2.3 |
4.1 |
4.5 |
5.1 |
||
|
15.9 |
710.91 |
2.2 |
2.6 |
4.5 |
5.0 |
5.6 |
||
|
17.5 |
781.75 |
2.4 |
2.8 |
5.0 |
5.5 |
6.2 |
||
|
19.1 |
852.47 |
2.6 |
3.1 |
5.5 |
6.0 |
6.8 |
||
|
80" |
2032 |
14.3 |
711.52 |
1.8 |
2.0 |
3.7 |
4.1 |
4.6 |
|
15.9 |
790.50 |
2.0 |
2.3 |
4.1 |
4.5 |
5.1 |
||
|
17.5 |
869.36 |
2.2 |
2.5 |
4.5 |
5.0 |
5.6 |
||
|
19.1 |
948.09 |
2.4 |
2.8 |
4.9 |
5.4 |
6.1 |
||
|
88" |
2235.2 |
14.3 |
783.10 |
1.7 |
2.0 |
3.5 |
3.9 |
4.4 |
|
15.9 |
870.10 |
1.9 |
2.2 |
3.9 |
4.3 |
4.9 |
||
|
17.5 |
956.96 |
2.1 |
2.4 |
4.3 |
4.8 |
5.4 |
||
|
19.1 |
1043.70 |
2.3 |
2.6 |
4.7 |
5.2 |
5.8 |
||
|
95" |
2413 |
15.9 |
939.89 |
1.8 |
2.0 |
3.6 |
4.0 |
4.5 |
|
17.5 |
1033.78 |
2.0 |
2.2 |
4.0 |
4.4 |
5.0 |
||
|
19.1 |
1127.54 |
2.2 |
2.4 |
4.4 |
4.8 |
5.4 |
||
Steam Insulation Steel Pipe is a type of pipe that is widely used in industrial and commercial applications. It is primarily used for the transportation of fluids, such as oil, gas, and water, in a variety of industries, including oil and gas, chemical processing, and water treatment.
Production process of polyurethane foam insulation steel pipe
The Steam Insulation Steel Pipe is divided into four production processes: two-step method, one-step method, spraying and winding, and steel sleeve steel:
(1) "Two-step" process
The two-step method is also called "pipe-in-pipe method", and this process is the most widely used. In this method, polyethylene particles are extruded from an extruder to obtain a high-density polyethylene outer protection tube, which is then placed on the working tube, supported by a bracket, and finally foamed by a foaming machine to form a trinity finished polyurethane insulation Tube.
(2) "One-step" process
The "one-step" process is based on the transformation of the existing three-layer PE anti-corrosion production line with mature technology, so that the polyurethane insulation layer and the polyethylene outer protection tube are formed at one time. The key process is the extrusion of the polyethylene outer protection pipe and the pouring of the insulation layer. The "one-step method" of polyurethane thermal Steam Insulation Steel Pipe is driven by V-shaped rollers, and the steel pipe undergoes surface pretreatment, intermediate frequency heating, epoxy spraying, polyethylene outer protection extrusion, polyurethane insulation layer casting, corona polarization treatment, pipe end treatment, etc. process. The V-shaped roller drive is different from the traditional roller drive. The steel pipe moves linearly with the roller instead of rotating by itself.
(3) "Spray winding" process
The "spraying and winding" process is a new type of process, which is mainly divided into steel pipe surface pretreatment, polyurethane foam spraying and polyethylene outer protection winding. The "spraying and winding" process is suitable for various pipe diameters, especially for the production of large-diameter polyurethane Steam Insulation Steel Pipe. There is no need for foaming molds in the production process, which saves equipment investment and reduces labor intensity. In addition, the density of spray-molded foam is more uniform and the internal stress is small, which also reduces the thickness of the outer protective tube and saves costs.
(4) Steel jacket steel insulation production process
The Steam Insulation Steel Pipe generally includes an inner pipe, an outer pipe and an inner support frame. The outer wall of the inner pipe and the inner wall of the outer pipe are fixedly connected by the inner support frame, and the insulation layer is filled between the inner pipe and the outer pipe. , the outer wall of the inner tube is covered with the insulation layer, and the inner bracket is welded to the outer wall of the inner tube, the inner tube is inserted into the outer tube from one end port of the outer tube, and the inner bracket near the end of the outer tube is connected to the inner tube of the outer tube. The wall can be welded.
Steam Insulation Steel Pipe have the advantages of waterproof and anti-corrosion, strong frost resistance, small thermal conductivity, energy saving and environmental protection, and are often used in municipal heating (refrigeration), oil and gas, hot springs, geothermal, etc. through buried or overhead laying. The transportation of media plays an important role especially in urban heating pipelines.
The first layer: working steel pipe layer
According to the design and customer requirements, seamless steel pipes, spiral steel pipes and straight seam steel pipes are generally used. After the surface of the steel pipe is treated by the advanced shot blasting derusting process, the derusting of the steel pipe can reach the Sa2 level in the GB8923-1988 standard, and the surface roughness can reach R=12.5 microns in the 0B6060.588 standard.
The second layer: polyurethane insulation house
It is formed by injecting rigid polyurethane foam stock solution into the cavity formed between the steel pipe and the outer sheath with a high-pressure foaming machine, which is commonly known as "pipe-in-pipe foaming".
The third layer: high-density polyethylene protective layer
Prefabricated black or yellow polyethylene plastic pipes with a certain wall thickness. Its function is to protect the polyurethane insulation layer from being damaged by mechanical hard objects, and the second is to prevent corrosion and waterproof.
The Steam Insulation Steel Pipe is generally used as a transport medium, and is composed of an outer protection steel pipe, a steel pipe anticorrosion, an insulation layer and an inner working steel pipe. The steel-sheathed steel insulation pipe is suitable for transporting steam or other media below 2.5MPa and 350 degrees Celsius. Most of this product uses a spiral pipe as the outer protective layer. It has the characteristics of high strength, not easy to damage, simple construction and maintenance, and long service life.
