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Screen Pipes Fittings

Screen Pipes Fittings
Screen Pipes Fittings
Product Code : 19
Product Description

We are one of the most promising names in the market that has been indulged in manufacturing and supplying a superb quality range of Screen Pipes Fittings in the market. Find wide application in tubewells, these fittings are manufactured using only quality approved materials sourced from the certified vendors of the market. We offer these durable Screen Pipes Fittings in various standard and customized sizes and specifications to meet the diverse requirements of our clients.

Product Features

  • Resistant to corrosion
  • Non chemical contamination
  • Supreme Flexibility
 

 

Further Details
Ajay uPVC ribbed screens and plain casing pipes for application in tubewells, besides various government aided schemes of medium irrigation projects are manufactured by house of A.I.C. who are in the field of plastic extrusion for past 4 decades. Produced with strict quality control, these pipes are made according to

  • International standard
  • British standard
  • ASTM standard
  • German standard (DIN 4925 Part-I/II)
  • Indian standard (IS 12818: 1992).
The plant is equipped with cincinnati milacron twin screw extruder machine capable of producing pipes from 20mm to 250 mm in 2.5 kgf/cm2 pressure classes.

Application
Soil corrosion is a major cause for short life of Tubewells. Due to its exceptional resistance to soil corrosion, unplasticised poly vinylchloride (uPVC) has firmly established itself as the best alternative to the more traditional materials used for well screens and casing. uPVC ribbed screen and plain casings have swiftly been accepted by the experts in the field of irrigation.

Advantages
  • Corrosion resistance
  • Non chemical contamination
  • No need of protective liners, coatings, encasements or cathodic protion
  • Low thermal conductivity
  • Flexibility
  • Variety of jointing methods
  • Non-Toxic
  • Biological resistance
  • Better resistance to water hammer / surge pressures
Threading of Screen and Casing pipes
Ajay uPVC ribbed screens and casings can be easily and quickly jointed as ends are theaded. The joints have good tensile strength and can hold the weight of the suspended assembly.

This screen and casing pipes shall have male threads at spigot end and female threads at the socket ends. Screen and casing pips of nominal diameter from 40 to 80 mm shall have threads in accordance with whitworth pipe thread.

Screen and casting pips of nominal diameters of 100 to 200 mm shall have threads in accordance with basic profile for metic trapezoidal thread. Rubber sealing element of diameter ensuring secure fit shall be used with the trapezoidal treads to seal the joint. Use thread lubricant/Soap for easy tightening. Remove dust from thread roots.

Installation
Lowering of the uPVC ribbed screens and plain casing is similar to that of mild steel pipes. However care must be taken to ensure that the pipes are perfectly upright which would ensure trouble free working of the tube well.

The pipes should not be driven using external force such as hammering etc.

Use back wash method while gravel packing the well. Avoid generating excessive external pressure while gravel packing. The external pressure should be equalized.

Exercise care during removal of drilling muds during jetting and surging not to create excessive differential pressure across casings.

Dimensions of Casing Pipes
Nominal dia
Mean outer dia of pipe
Cm Casing pipes
dn
Min
Max
dia over
connection ds (max)
Wall thickness
Min
max
40
48.0
48.2
52.0
3.5
4.0
50
60.0
60.2
65.0
4.0
4.6
80
88.0
88.3
94.0
4.0
4.6
100
113.0
113.3
120.0
5.0
5.7
125
140.0
140.4
150.0
6.5
7.3
150
165.0
165.4
178.0
7.5
8.5
175
200.0
200.5
215.0
8.8
9.8
200
225.0
225.5
243.0
10.0
11.2

  • Whaiworth pipe thread according to DIN2999: Cylindrical internal thread and conical external pitch 11 threads pre inch
  • Flash joint trapesoidal thread according to work standards. Threads to etc into the pipe wall: Pitch 6mm: 113 to 225, Pitch 12mm : 250 to 400
  • Trapezoidal thread with socketed female end according to DIN 4925 Pitch 6mm: 113 to 225, Pitch 12mm: 250 to 400
Dimensions of Screen Pipes with Ribs
Nominal Dia
Mean Outer Dia of Pipes
over Ribs
Mean Outer Dia Over
Connection
Wall Thickness
under Ribs   (S)
Dn
D(min)
ds(max)
Min
Max.
40
52
56
3.5
4.0
50
64
69
4.0
4.6
80
94
98
4.0
4.6
100
117
124
5.0
5.7
125
144
154
6.5
7.3
150
169
182
7.5
8.5
175
204
219
8.8
9.8
200
229
247
10.0
11.2

Dimensions and Layout of Slots on Screen Pipe
Solt width in mm (W)
0.2
+0.06
0.3
+0.06
0.5
+0.10
0.75
+0.20
1.0
+0.2
1.5
+0.02
2.0
+0.02
3.0
+0.3
Nominal Dia
N/A
+/-05%
E (Approximate Free Passage Area)
(%)
40
3
85
3.5
5.0
6
8.5
9.0
9.5
12.0
-
50
3
108
3.5
5.0
6
8.5
9.0
9.5
12.0
-
80
3
168
3.5
5.0
6
8.5
9.0
9.5
12.0
-
100
5
216
3.5
5.0
6
8.5
9.0
9.5
12.0
-
125
5
240
-
4.5
5.5
7.5
8.0
8.5
11.0
13.5
150
5
285
-
-
5.5
7.5
8.0
8.5
11.0
13.5
175
5
335
-
-
5.5
7.5
8.0
8.5
11.0
13.5
200
6
390
-
-
-
7.5
8.0
8.5
11.0
13.5
Width of  Material
Between slots (b)
+/-0.5
4.0
4.0
5.5
5.5
6.5
9.5
9.5
11.0
a: Sim of Slot lengths on inside circumference of the cross section.
n: Minimum number of slots on the circumference of the cross section.


AJAY INDUSTRIAL CORPORATION LTD.
20/11, Site IV, Sahibabad Industrial Area, Ghaziabad - 201010, Uttar Pradesh, India
Mr. Pushpa Raj (Marketing Manager )
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