Casing Spacer
Products Description
General Information
In many countries, pipelines crossing or running parallel to highways and railways are protected by casing. Casing Insulators are used to separate the carrier pipeline from the casing pipeline, it is suitable for water and oil & gas carrier pipeline.
Product Features / Benefits:
* High electrical insulating value and low water absorption,thus preventing leakage and maintaining electrical isolation between carrier and casing
* Ribbed inner surface prevents slippages and guards against coating damages.
* High compressive strength to support the carrier pipe weight.
* Resist mechanical damage while being pulled into the casing.
* Resistant to mechanical and thermal shocks and stresses,particularly that occur during installation and inserting operations.
* Ribbed inner surface prevents slippages and guards against coating damages.
* High compressive strength to support the carrier pipe weight.
* Resist mechanical damage while being pulled into the casing.
* Resistant to mechanical and thermal shocks and stresses,particularly that occur during installation and inserting operations.
Product Paramenters
|
Product Properties:
|
||
|
Property
|
Value
|
Test Method
|
|
Dielectric Strength
|
400-500 Volts / mil
|
ASTM D ‐ 149
|
|
Compressive Strength
|
3200 psi
|
ASTM D ‐ 695
|
|
Tensile Strength
|
3100-5000 psi
|
ASTM D ‐ 638/D‐651
|
|
Impact Strength
|
4.0 ft. Lb/inch of notch
|
ASTM D ‐ 256
|
|
Water Absorption
|
0.01%
|
ASTM D ‐ 570
|
|
Characteristics Of PE Raw Matrials:
|
|||
|
Property
|
Test Method
|
Unit
|
Typical Value
|
|
Melt Flow Index
|
ASTM D 1238
|
gm/10 min.
|
20
|
|
Density (230 C)
|
ASTM D 1505
|
gm/cm
|
0.950
|
|
Tensile Strength at Yield
|
ASTM D 638
|
Mpa
|
22
|
|
Elongation at Yield
|
ASTM D 638
|
%
|
400
|
|
Flexural Modulus
|
ASTM D 790
|
Mpa
|
900
|
|
Notched Izod Impact Strength
|
ASTM D 256
|
J/m
|
30
|
|
Vicat Softening Point
|
ASTM D 1525
|
℃
|
123
|
Size table
Dimensions for each type are as follows:
|
Model
|
Materials
|
Dimensions
|
||||
|
Runner Height
|
Runner Width
|
Length
|
Width
|
Thickness
|
||
|
MRD-50
|
HDPE
|
50mm
|
130mm
|
313mm
|
195mm
|
6mm
|
|
MRD-50(HALF)
|
HDPE
|
50mm
|
130mm
|
156mm
|
195mm
|
6mm
|
|
MRB-36
|
HDPE
|
36mm
|
110mm
|
207mm
|
130mm
|
6mm
|
|
MRB-36(HALF)
|
HDPE
|
36mm
|
110mm
|
103mm
|
130mm
|
6mm
|
|
MRB-25
|
HDPE
|
25mm
|
110mm
|
207mm
|
130mm
|
6mm
|
|
MRB-25(HALF)
|
HDPE
|
25mm
|
110mm
|
103mm
|
130mm
|
6mm
|
|
MRF-25
|
HDPE
|
25mm
|
60mm
|
26mm
|
90mm
|
6mm
|
|
MRF-15
|
HDPE
|
15mm
|
60mm
|
26mm
|
90mm
|
6mm
|
|
ME-25
|
HDPE
|
25mm
|
98mm
|
175mm
|
98mm
|
6mm
|
|
MG-25
|
HDPE
|
25mm
|
83mm
|
260mm
|
83mm
|
6mm
|
Dimensions for M-type are as follows:
|
Carrier Pipe Size(inch)
|
Carrier Pipe O.D(mm)
|
Model
|
Skid Height
|
Number of Segments
|
Number of Skids
|
Bolt number/size
|
|
2
|
60.3
|
MF-15
|
15
|
7
|
7
|
/
|
|
3
|
88.9
|
MF-15
|
15
|
10
|
10
|
/
|
|
4
|
114.3
|
ME-25
|
25
|
2
|
4
|
4-M6*60
|
|
6
|
168.3
|
MG-25
|
25
|
2
|
4
|
4-M6*60
|
|
8
|
219.1
|
MRB-25
|
25
|
2+1/2+1/2
|
6
|
8-M6*60
|
|
MRB-36
|
36
|
|||||
|
10
|
273.1
|
MRB-25
|
25
|
4
|
8
|
8-M6*60
|
|
MRB-36
|
36
|
|||||
|
12
|
323.9
|
MRB-25
|
25
|
4+1/2
|
9
|
9-M6*60
|
|
MRB-36
|
36
|
|||||
|
14
|
355.6
|
MRB-25
|
25
|
5
|
10
|
10-M6*60
|
|
MRB-36
|
36
|
|||||
|
16
|
406.4
|
MRB-25
|
25
|
6
|
12
|
12-M6*60
|
|
MRB-36
|
36
|
|||||
|
18
|
457.2
|
MRB-25
|
25
|
6+1/2
|
13
|
14-M6*60
|
|
MRB-36
|
36
|
|||||
|
20
|
508
|
MRB-25
|
25
|
7+1/2
|
15
|
16-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
5
|
15
|
10-M8*60
|
||
|
22
|
558.8
|
MRB-25
|
25
|
8
|
16
|
16-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
5+1/2
|
17
|
12-M8*60
|
||
|
24
|
609.6
|
MRB-25
|
25
|
9
|
18
|
18-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
6
|
18
|
12-M8*60
|
||
|
26
|
660.4
|
MRB-25
|
25
|
9+1/2
|
19
|
20-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
6+1/2
|
20
|
14-M8*60
|
||
|
28
|
711.2
|
MRB-25
|
25
|
10+1/2
|
21
|
22-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
7
|
21
|
14-M8*60
|
||
|
30
|
762
|
MRB-25
|
25
|
11
|
22
|
22-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
7+1/2
|
23
|
16-M8*60
|
||
|
32
|
812.8
|
MRB-25
|
25
|
11+1/2
|
23
|
24-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
8
|
24
|
16-M8*60
|
||
|
34
|
863.6
|
MRB-25
|
25
|
12+1/2
|
25
|
26-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
8+1/2
|
26
|
18-M8*60
|
||
|
36
|
914.4
|
MRB-25
|
25
|
13
|
26
|
26-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
9
|
27
|
18-M8*60
|
||
|
38
|
965.2
|
MRB-25
|
25
|
14
|
28
|
28-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
9+1/2
|
29
|
20-M8*60
|
||
|
40
|
1016
|
MRB-25
|
25
|
14+1/2
|
29
|
30-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
10
|
30
|
20-M8*60
|
||
|
42
|
1066.8
|
MRB-25
|
25
|
15+1/2
|
31
|
32-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
10+1/2
|
32
|
22-M8*60
|
||
|
44
|
1117.6
|
MRB-25
|
25
|
16
|
32
|
32-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
11
|
33
|
22-M8*60
|
||
|
46
|
1168.4
|
MRB-25
|
25
|
17
|
34
|
34-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
11+1/2
|
35
|
16-M8*60
|
||
|
48
|
1219.2
|
MRB-25
|
25
|
17+1/2
|
35
|
36-M6*60
|
|
MRB-36
|
36
|
|||||
|
MRD-50
|
50
|
12
|
36
|
24-M8*60
|
