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Multi Core Tube Structure Schematism

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Dong Nam’s Multi Core Tubes are spirally laid up and available with tubes in stainless steel, seamless and copper alloy. Straight bead welded, bright-annealed and calibrated high quality steel tubing. In order to easier identification and protection of tubes after installed, individual tubes are sheathed by PVC material of marked at every one meter throughout the entire length for easy installation. Extruded outer sheath is oil resistance, weather proof, flame-retardant, corrosion and acid resistant and physical/chemical protection.


product

▪ Tube material
- Austenitic stainless steel, Copper / Copper Alloy
▪ Sheath material
- Flame-retardant PVC, TPU, PE, Seawater and Oil Resistant, Halogen free material

▪ Standard length : 100-550m
- Longer length is available on special request.
▪ Approved by
- ABS, BV, CCS, DNVGL, KR, LR, NK, RINA, RMRS

● Section Diagram


● Specification
Item Description Remark
Tube Core 1~10 tubes  
Thickness 0.8 ~ 1.5mm  
Length About: 550m Wooden reel
Material Austenite Stainless steel, Copper or Copper Alloy  
Grade ASTM A213, A269, JIS G3459  
Sheath Material Flame-Retardant / Halogen Free Material Black
Each tube PVC Various color


INST.DWG.FOR M.C.T

product

Material

STANDARD Stainless Steel Copper
KS STS304 STS316 STS316L C1201 C1220 C7060
JIS SUS304 SUS316 SUS316L C1201 C1220 C7060
ASTM 304 316 316L C12000 C12200 C70600
DIN 1.4301 1.4401 1.4404 1787 SW-Cu 1787 SF-Cu 17664CuNi10Fe

Strong Point


- Rip-cord is a high tensile string.
You can Rip them up easily when you pull it out by a handy tool because it's inserted inside of multi core tube's filler continuously.
- It avoid can prevent the safety accident by existing knife which is used for being Ripped outer sheath.
- It can save worker's load and time as it is much easier than the existing work.



● Metric size
Metric Size WEIGHT(KG/M)
Stainless Steel COPPER
THICKNESS(mm) THICKNESS(mm)
O.D CORE OVERALL
DIAMETER
(mm)
0.8 1 1.2 1.5 0.8 1 1.2
6 x 1 9 0.15 0.20 - - 0.17 0.20 -
6 x 2 20 0.67 0.71 - - 0.58 0.63 -
6 x 3 21 0.86 0.71 - - 0.69 0.77 -
6 x 4 23 0.96 1.04 - - 0.91 1.01 -
6 x 5 25 1.08 1.18 - - 1.04 1.16 -
6 x 6 27 1.25 1.37 - - 1.29 1.43 -
6 x 7 27 1.39 1.53 - - 1.36 1.53 -
6 x 8 32 1.68 1.84 - - 1.76 1.96 -
6 x 9 34 1.92 2.10 - - 2.10 2.22 -
6 x 10 34 1.98 2.18 - - 2.17 3.32  
8 x 1 11 0.25 0.28 0.31 - 0.23 0.27 0.30
8 x 2 24 0.83 0.89 0.94 - 0.81 0.88 0.94
8 x 3 26 1.02 1.12 1.22 - 0.94 1.04 1.14
8 x 4 28 1.20 1.33 1.46 - 1.24 1.38 1.51
8 x 5 31 1.52 1.67 1.82 - 1.56 1.73 1.89
8 x 6 34 1.82 2.00 2.18 - 1.78 1.99 2.18
8 x 7 34 1.93 2.15 2.35 - 1.87 2.11 2.34
8 x 8 40 2.35 2.60 2.81 - 2.64 2.92 3.18
8 x 9 42 2.67 2.95 3.25 - 2.88 3.20 3.49
8 x 10 43 2.90 3.18 3.69 - 2.97 3.32 3.64
10 x 1 13 0.30 0.34 0.38 0.42 - 0.37 0.14
10 x 2 28 1.10 1.18 1.26 1.34 - 1.24 1.32
10 x 3 31 1.50 1.60 1.71 1.82 - 1.68 1.81
10 x 4 34 1.80 1.97 2.12 2.27 - 2.09 2.26
10 x 5 37 2.00 2.20 2.39 2.58 - 2.33 2.55
10 x 6 40 2.15 2.40 2.71 3.02 - 2.57 2.83
10 x 7 40 2.28 2.52 2.70 2.88 - 2.80 3.10
10 x 8 48 2.95 3.20 3.42 3.64 - 3.60 3.95
10 x 9 51 3.30 3.80 4.25 4.70 - 4.15 4.54
10 x 10 51 3.65 4.40 5.08 5.76 - 4.70 5.13
12 x 1 15 0.36 0.14 0.46 - - 0.39 0.45
12 x 2 34 1.32 1.38 1.44 - - 1.44 -
12 x 3 36 1.81 1.96 2.11 - - - 1.50
12 x 4 39 2.13 2.37 2.61 - - 2.51 -
12 x 5 43 2.44 2.70 2.96 - - - 2.78
12 x 6 47 2.70 3.00 3.30 - - - -
15 x 1 18   0.49 0.56 - - 0.51 0.59


● Imperial Size
Imperial Size WEIGHT(KG/M)
Stainless Steel COPPER
THICKNESS THICKNESS
O.D CORE OVERALL
DIAMETER
(mm)
0.035" 1(mm) 0.049" 1.2(mm) 0.035" 0.049"
1/4" x 1 9 0.17 0.19 0.21 0.21 0.19 0.23
1/4" x 2 21 0.75 0.77 0.83 0.81 0.78 0.87
1/4" x 3 22 1.00 1.04 1.12 1.10 1.04 1.18
1/4" x 4 25 1.10 1.15 1.28 1.26 1.16 1.34
1/4" x 5 26 1.20 1.26 1.40 1.36 1.2 1.50
1/4" x 6 29 1.40 1.47 1.64 1.60 1.49 1.76
1/4" x 7 29 1.50 1.57 1.76 1.73 1.57 1.85
1/4" x 8 34 1.94 2.02 2.24 2.21 2.02 2.34
1/4" x 9 36 2.22 2.31 2.56 2.52 2.31 2.67
1/4" x 10 36 2.29 2.39 2.67 2.63 2.39 2.79
3/8" x 1 13 0.28 0.30 0.35 0.34 0.31 0.38
3/8" x 2 28 1.14 1.18 1.27 1.25 1.18 1.33
3/8" x 3 29 1.55 1.62 1.75 1.72 1.62 1.84
3/8" x 4 32 1.90 1.98 2.16 2.12 1.99 2.28
3/8" x 5 36 2.15 2.25 2.48 2.43 2.26 2.63
3/8" x 6 39 2.35 2.47 2.74 2.68 2.47 2.86
3/8" x 7 39 2.42 2.57 2.87 2.82 2.58 3.09
3/8" x 8 47 3.09 3.25 3.62 3.57 3.25 3.81
3/8" x 9 50 3.52 3.70 4.12 4.06 3.70 4.33
3/8" x 10 50 3.57 3.77 4.24 4.17 3.77 4.47
1/2" x 1 16 - 0.41 0.47 0.46 - 0.51
1/2" x 2 35 - 1.36 1.49 1.48 - 0.88
1/2" x 3 41 - 1.82 1.94 1.91 - 2.06
1/2" x 4 42 - 2.32 2.70 2.65 - 2.85
1/2" x 5 47 - 2.62 2.92 2.87 - 3.12
1/2" x 6 51 - 3.61 3.97 3.91 - 4.21

Maximum Allowable Working Pressure

● Stainless Steel Seamless Tube

(Unit:bar)

O.D
mm
Wall Thickness (mm)
0.8 1.0 1.2 1.5 2.0
6 330 430 520 - -
8 240 310 380 - -
10 190 240 300 380 530
12 - 170 190 245 430
15 - 170 190 245 335
 

(Unit:bar)

O.D
mm
Wall Thickness (mm)
0.035 0.049 0.065
1/4 350 515 720
3/8 225 330 450
1/2 165 240 325






● Stainless Steel Welded Tube

(Unit:bar)

O.D
mm
Wall Thickness (mm)
0.8 1.0 1.2 1.5 2.0
6 260 340 420 - -
8 195 245 305 - -
10 155 195 235 305 425
12 160 200 245 310 430
15 - 125 155 195 270
 

(Unit:bar)

O.D
(in.)
Wall Thickness (mm)
0.035 0.049 0.065
1/4 280 410 575
3/8 180 260 360
1/2 135 190 260






● Copper Tube

(Unit:bar)

O.D
mm
Wall Thickness (mm)
0.8 1.0 1.2
6 105 140 175
8 75 100 125
10 60 80 100
12 160 200 245
15 - 125 155


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