Normally supplied in 2.85m and 5.8m overall lengths to fit inside standard containers for economical land and sea transport. Other lengths available on request.
Slot Sizes :
Available in a range of slot widths 0.2, 0.3, 0.5, 0.75, 1.0, 1.5, 2.0 and 3.0mm.
Thread Style :
Mechanical jointing by threaded connection to DIN 4925. Whitworth threads on small sizes and Trapezoidal threads on larger sizes from 100/4" and up.
Joints :
Each length is supplied with a Male/Female socketed joint as standard. Flush joints can be supplied on thickwalled pipe.
Marking :
Standard marking is applied to all casing and screen and includes OD and WT.
Table I: Mechanical & Thermal Properties Unplasticized polyvinylchloride (PVC-U), without plasticizers and fillers.
Properties
Units
Testing Method
Specification
Specified Value
Long Term Creep Pressure For 1000 hours
N/mm2
DIN 53795
DIN 8061
10
Impact Resistance (Confidence Limit) at 23 ± 2 C
%
DIN 53453
DIN 8061
Min 90
Water Absorption
mg/cm2
DIN 8061
DIN 8061
Max 4
Heat Reversion
%
DIN 8061
DIN 8061
Max 5
Density
gm/cc
DIN 53479
DIN 8061
1.4-1.45
Mean Coefficient of linear thermal expansion in the temperature range 0 to 70 °C
k-1
DIN 53752
DIN 8061
0.8 x 10-4
Thermal Conductivity
w/km
DIN 52612 Part 1
DIN 8061
0.15
Surface Resistance
Ω
DIN 53482/ VDE 0303 Part 3
DIN 8061
1012
Vicat Softening Temp
°C
DIN 53460 B
DIN 4925
80 °C
Yield Point
N/mm2
DIN 53455
DIN 4925
45 to 55
* PVC-U is generally resistant to:
All type of ground water, sea water and brines, diluted Acids, diluted Alkalines
The use of non-corroding PVC-U for well casing and screen offers significant advantages over steel and other materials. The excellent properties of PVC-U guarantee the maximum possible operating life of the well in many applications.
Table II: Range of PVC-U Well Casings & Screens to DIN 4925
Nom Diam (mm/inch) OD
Outside Diam (mm) d
Wall Thickness (mm) s
Outside Diam of Socket (mm) d5
Inside Diam of Pipe (mm) d1
STANDARD WALL
35/1.25"
42
3.5
46
35
40/1.5"
48
3.5
52
41
50/2"
60
4
65
52
80/3"
88
4
95
80
100/4"
113
5
120
103
125/5"
140
6.5
148
127
150/6"
165
7.5
176
150
200/8"
225
10.0
240
205
250/10"
280
12.5
300
255
300/12"
330
14.5
350
301
350/14"
400
17.5
415
365
400/16"
450
19.5
485
411
THICK WALLED
100/4"
113
8.2
125
96.6
125/5"
140
8.0
150
124
150/6"
165
9.5
180
146
200/8"
225
13.0
245
199
250/10"
280
16.0
300
248
300/12"
330
19.0
355
292
350/14"
400
21.0
430
358
Note: 1. Other sizes conforming to BS and ASTM standards can be supplied on request.
Table III: Range of PVC-U Screens with Ribbed Surface
