AOV International

Other Details

“AOV” offers GALVANISED STEEL PIPES & BLACK STEEL PIPES

For Ordinary Uses in Water, Gas, Air and Steam 

Conforming To IS:1239 (PtI)-1990 

Equivalent to BS - 1387/1985

 Outside DiameterWall 

thicknessNominal Mass of Steel TubesSocket

 Plain end  Screwed & Socketed 

N.B. MM. & SeriesINCH.Minimum

MMMaximum 

MMMMSWGKG/

Mtrs.Mtrs 

per tonneKg/

MtrsMtrs 

per tonneNo. of

pipes approx.

tonne bundleMinimum Outer 

diameter

MMMinimum

Length 

MM

15 L1/22121.42140.9510560.961046165 

M1/22121.82.6121.218261.228201322737

H1/22121.83.2101.446941.45690110 

20 L3/426.426.92.3131.387251.39719112 

M3/426.527.32.6121.566411.576379832.539

H3/426.527.33.2101.875351.8853284 

25 L133.233.82.6121.98505250080 

M133.334.23.2102.414152.434126539.546

H133.334.2482.933412.9533955 

32 L1 1/441.942.52.6122.543942.5738960 

M1 1/44242.93.2103.13233.133195149.551

H1 1/44242.9483.792643.8226242 

40 L1 1/247.848.42.9113.233103.2730648 

M1 1/247.948.83.2103.562813.6278455651

H1 1/247.948.8484.372294.4122736 

50 L259.660.22.9114.082454.1524139 

M259.760.83.693.031995.1196306860

H259.760.84.576.191626.2616027 

65 L2 1/275.2763.2105.711755.8317227 

M2 1/275.376.63.696.421566.54153248469

H2 1/275.376.64.577.931268.0512420 

80 L387.988.73.2106.721496.8914523 

M38889.5488.361208.53117199875

H38889.54.869.910110.19616 

100 L4113113.93.699.751031010016 

M4113.11154.5712.28212.5801312487

H4113.11155.4514.56914.86811 

125 M5138.5140.84.8615.96316.46110 

H5138.5140.85.4517.95618.454915196

150 M6163.9166.54.8618.95319.5518 

H6163.9166.55.4521.34721.946717896

“AOV” offers SLOTTED PIPES, CASING PIPES AND SCREENS

Discharge in 

Liters/minuteCalculated Weight (Plain end)

 MinimumRecommended

Up to 475100100

475-1125150150

1300-3000200250

3000-5250250300

5250-9500300350

9500-13300350400

13300-19000400450

19000-26500450500

26500-34000500550

Selection Off Screen Diameters

treadle irrigation pump, treadle pump, hand water pump, water well pump, hand well pumpThe designed yield of a tubewell is 150m²/h (1.5 Cusecs) and a screen having 20% open area is proposed to be used in a length of 20m to tap an acquifer of 25m thick. Diameter, of the screen is to be worked out.As Q = A x V

Where Q = discharge in m²/s, A = effective open area of the screen V = entrance velocity in m/s (to be ltd. to 0.03 m/s) 

Therefore, A = 150/3600 x 1/0.03 = 1.39m² Taking effective area as 50% of that provided, in order to taking into account the reduction of the effective area of the screen opening with time due to incrustation rearrangement of the acquifer particles around the screen and coverage by gravel, etc. 

The required open area = 2 x 1.39 = 2.78m² Open area of pipes = x d x l x open area Where d = dia of pipe, l = length of pipeTherfore, d = 2.78/ x 20 x 20 = 0.22m or 220mm 

The required sceen dia works out 220mm. 

Selection of Slot Size

Acquifer Material Classification - The acqifer material may be classified into various categories according to the following ranges of the particle size: 

Fine Gravel- above 2.0 mm

Coarse Sand0.5 - 2.0 mm

Medium Sand0.25 - 0.5 mm

Fine Sand0.05 - 0.25 mm

Silt0.002 - 0.06 mm

Claybelow 0.000 mm

Typical Slot Pattern

treadle irrigation pump, treadle pump, hand water pump, water well pump, hand well pumptreadle irrigation pump, treadle pump, hand water pump, water well pump, hand well pump

“AOV” offers SOCKETED CASING PIPES

All dimensions are in millimetres

Nominal Bore 

of PipeOutside 

Diameter 

of PipeThickness 

of PipeMass of

Plain TubeSocket

Outside

DiameterOverall 

length of 

Socket, min

100114.35.414.5130114.3

125141.35.418.1157120.6

 7.123.5 

150168.35.421.6154127

 7.128.2 

175193.76.429.6211.6152.4

 836.6 

200219.16.433.6237152.4

 841.6 

225244.57.141.6262.5165.1

 952.3 

250273.1852.3291177.8

 1064.9 

300323.9862.3346177.8

 1077.4 

The values have been calculated on the basis of the formula: 

W=0.024 66 x (D-t) t kg/metre. Where D = outside diameter in mm, and T= thickness in mm.

“AOV” offers PLAIN CASING PIPES

All dimensions are in millimetres

Nominal Bore

of PipeOutside

Diameter of PipeThickness 

of pipeMass 

of Plain Tube

(mm)(mm)(mm)(kg/m)

100114.35.013.48

125141.35.016.80

150168.35.020.13

175193.75.425.10

200219.15.428.46

225244.56.035.29

250273.07.146.57

300323.97.155.47

350355.68.068.57

350355.610.085.22

400406.410.078.60

400406.410.097.75

450457.210.0110.28