Manufacturers and Exporters of copper and copper alloy products
  • AN ISO 9001-2008 Certified Company
Sunflex Metal Industries

Pipes & Tubes For ACR Application



  • Sunflex Metal Industries Plumbing tubes are manufactured in compliance to BS 2871, Part 1 now superseded by the new European standard EN:1057 for Water, Gas and Sanitation .The BS 2871 specifies 3 wall thickness suitable for hot and cold water installations under Table X, Y & Z (the tables can be downloaded from our web site). Table ‘X’ is the table normally used for plumbing and gas. Tubes are 100% eddy current tested. Mechanical and chemical properties meet the standards of BS 2871, Part 1:1971 or the EN:1057 Tube sizes range from 12 mm to 159 mm. The standard plumbing sizes are (in mm): 15, 22, 28, 35, 42, 54, 66.7, 76.1, 108, 133 & 159.  These include types K, L, M and DWV. All tubes supplied to these ASTM standards are a minimum of 99.90 percent pure copper.

  • These classes and types of tubes are commercially available in the tempers and lengths described in the Plumbing tube product range chart. Types K, L, M and DWV are designated by ASTM standard size, with outside diameter always 1/8" larger than the standard size. Each type (K, L, M and DWV) represents a series of sizes with different wall thickness. The inside diameter depends on tube size and wall-thicknesses.

  • All four types are available in drawn temper straight lengths 20 feet long. Type K, L and M are available also in annealed temper in 8 feet straight lengths or in long coils in sizes from 1/4 inch to 7/8 inch.  We in India, manufacture plumbing tubes to meet specifications established by the American Society for Testing and Materials (ASTM).
  •  

    Advantages of copper plumbing Leak Proof:

  • Completely leak proof, copper pipes require no threading.
  • Owing to the corrosion resistant property of copper, our copper plumbing is resistant to corrosion and hence the water carried through the pipes also does not change colour as it does in the case of Galvanized Iron Pipes.
  • Our copper plumbing pipes are easy to install via soldering/ brazing process.
  • Our quality copper plumbing system has a longer & durable life. They last up to 50 years.

  • Nominal
    or
    Standard Size, in.

    Outside
    Diameter, in.

    Average Outside
    Diameter A
    Tolerance, 
    in

    Wall Thickness and Tolerances, in.

    Theoretical Weight,
    lb/ft

    Type K

    Type L

    Type M

    Annealed

    Drawn

    Wall
    Thick-ness

    Tolerance B

    Wall
    Thick-ness

    Tolerance B

    Wall
    Thick-ness

    Tolerance B

    Type K

    Type L

    Type M

    ¼

    ½

    ¾
    1


    2

    3

    4
    5
    6
    8

    10

    12

    0.375
    0.500
    0.625
    0.750
    0.875
    1.125
    1.375
    1.625
    2.125
    2.625
    3.125
    3.625
    4.125
    5.125
    6.125
    8.125

    10.125

    12.125

    0.002
    0.0025
    0.0025
    0.0025
    0.003
    0.0035
    0.004
    0.0045
    0.005
    0.005
    0.005
    0.005
    0.005
    0.005
    0.005
    0.006

    0.008

    0.008

    0.001
    0.001
    0.001
    0.001
    0.001
    0.0015
    0.0015
    0.002
    0.002
    0.002
    0.002
    0.002
    0.002
    0.002
    0.002
    +0.002
    -0.004
    +0.002
    -0.006
    +0.002
    -0.006

    0.035
    0.049
    0.049
    0.049
    0.065
    0.065
    0.065
    0.072
    0.083
    0.095
    0.109
    0.120
    0.134
    0.160
    0.192
    0.271

    0.338

    0.405

    0.0035
    0.005
    0.005
    0.005
    0.006
    0.006
    0.006
    0.007
    0.008
    0.010
    0.011
    0.012
    0.013
    0.016
    0.019
    0.027

    0.034

    0.040

    0.030
    0.035
    0.040
    0.042
    0.045
    0.050
    0.055
    0.060
    0.070
    0.080
    0.090
    0.100
    0.110
    0.125
    0.140
    0.200

    0.250

    0.280

    0.003
    0.004
    0.004
    0.004
    0.004
    0.005
    0.006
    0.006
    0.007
    0.008
    0.009
    0.010
    0.011
    0.012
    0.014
    0.020

    0.025

    0.028

    c
    0.025
    0.028
    c
    0.032
    0.035
    0.042
    0.049
    0.058
    0.065
    0.072
    0.083
    0.095
    0.109
    0.122
    0.170

    0.212

    0.254

    c
    0.002
    0.003
    c
    0.003
    0.004
    0.004
    0.005
    0.006
    0.006
    0.007
    0.008
    0.010
    0.011
    0.012
    0.017

    0.021

    0.025

    0.145
    0.269
    0.344
    0.418
    0.641
    0.839
    1.04
    1.36
    2.06
    2.93
    4.00
    5.12
    6.51
    9.67
    13.9
    25.9

    40.3

    57.8

    0.126
    0.198
    0.285
    0.362
    0.455
    0,655
    0.884
    1.14
    1.75
    2.48
    3.33
    4.29
    5.38
    7.61
    10.2
    19.3

    30.1

    40.4

    c
    0.145
    0.204
    c
    0.328
    0.465
    0.682
    0.940
    1.46
    2.03
    2.68
    3.58
    4.66
    6.66
    8.92
    16.5

    25.6

    36.7


    Copper Tubes are specified in the BS 2871 / EN 1057 in three wall thicknesses designated under Table X, Y & Z. As per the specification the wall thicknesses recommended & the calculated working & burst pressures are given below:

    Table 'X'

    Tube Size

    Outer Dia.

    Thickness

    Inner Dia.

    Calculated Burst Pressure

    Maximum Working Pressure

    max.

    min.

    mm

    mm

    mm

    mm

    mm

    bar

    PSI

    bar

    PSI

    15

    15.045

    14.965

    0.7

    13.6

    240

    3480.0

    58

    841.0

    22

    22.055

    21.975

    0.9

    20.2

    215

    3117.5

    51

    739.5

    28

    28.055

    27.975

    0.9

    26.2

    165

    2392.5

    40

    580.0

    35

    35.07

    34.99

    1.2

    32.6

    175

    2537.5

    42

    609.0

    42

    42.07

    41.99

    1.2

    39.6

    145

    2102.5

    35

    507.5

    54

    54.07

    53.99

    1.2

    51.6

    110

    1595.0

    27

    391.5

    67

    66.75

    66.60

    1.2

    64.6

    105

    1522.5

    20

    290.0

    76.1

    76.30

    76.15

    1.5

    73.1

    100

    1450.0

    24

    348.0

    108

    108.25

    108.00

    1.5

    105.0

    70

    1015.0

    17

    246.5


    Table 'Y'

    Tube Size

    Outer Dia.

    Thickness

    Inner Dia.

    Calculated Burst Pressure

    Maximum Working Pressure

    max.

    min.

    mm

    mm

    mm

    mm

    mm

    bar

    PSI

    bar

    PSI

    15

    15.045

    14.965

    1.0

    13.0

    360

    5220.0

    87

    1261.5

    22

    22.055

    21.975

    1.2

    19.6

    290

    4205.0

    69

    1000.5

    28

    28.055

    27.975

    1.2

    25.6

    230

    3335.0

    55

    797.5

    35

    35.07

    34.99

    1.5

    32.0

    225

    3262.5

    54

    783.0

    42

    42.07

    41.99

    1.5

    39.0

    190

    2755.0

    45

    652.5

    54

    54.07

    53.99

    2.0

    50.0

    195

    2827.5

    47

    681.5

    67

    66.75

    66.60

    2.0

    63.0

    157

    2276.5

    37

    536.5

    76.1

    76.30

    76.15

    2.0

    72.10

    140

    2030.0

    33

    478.5

    108

    108.25

    108.00

    2.5

    103.0

    120

    1740.0

    29

    420.5


    Table 'Z'

    Tube Size

    Outer Dia.

    Thickness

    Inner Dia.

    Calculated Burst Pressure

    Maximum Working Pressure

    max.

    min.

    mm

    mm

    mm

    mm

    mm

    bar

    PSI

    bar

    PSI

    15

    15.045

    14.965

    0.5

    14.0

    260

    3770.0

    50

    725.0

    22

    22.055

    21.975

    0.6

    20.8

    215

    3117.5

    41

    594.5

    28

    28.055

    27.975

    0.6

    26.8

    165

    2392.5

    32

    464.0

    35

    35.07

    34.99

    0.7

    33.6

    155

    2247.5

    30

    435.0

    42

    42.07

    41.99

    0.8

    40.6

    145

    2102.5

    28

    406.0

    54

    54.07

    53.99

    0.9

    52.2

    130

    1885.0

    25

    362.5

    67

    66.75

    66.60

    1.0

    65.0

    120

    1740.0

    20

    290.0

    76.1

    76.30

    76.15

    1.2

    73.7

    80

    1160.0

    19

    275.5

    108

    108.25

    108.00

    1.2

    105.6

    75

    1087.5

    17

    246.5


     

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