HI-TECH PREINSULATED PIPES

A MEMBER OF SENG CHOON GROUP OF COMPANIES

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CONTENTS

COMPANY PROFILE

JOB REFERENCES

CONTACTS

APPLICATIONS OF HI-TECH PREINSULATED PIPES

ADVANTAGES OF USING HI-TECH PREINSULATED PIPES

ENGINEERING DATA

TYPICAL INSULATION THICKNESS TO PREVENT CONDENSATION

CALCULATION FORMULAS FOR HEAT GAIN, HEAT LOSS AND CASING TEMPERATURE

HI-TECH PREINSULATION DATA

AVAILABLE INSULATION THICKNESS

HEAT GAIN, HEAT LOSS VALUE BY INSULATION

Aboveground Chilled Water Pipe

Aboveground Hot Water Pipe (Kelen PP-R)

Underground Chilled Water Pipe

HI-TECH PREINSULATED PIPES’ WEIGHT TABLE

GUIDE SPECIFICATION FOR HI-TECH PREINSULATED PIPES

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10/11

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12/13/14/15

COMPANY PROFILE

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Seng Choon Engineering, established since 1951, specializes in piping system material fabrication, manufacturing, importing & exporting of products ranging from pipes and valves to special pipeline system, and control instrumentation. Seng Choon’s commitment to product innovation using new technology is a key to serving the ever changing needs of new eras.

Hi-Tech Preinsulated Pipes (S) Pte Ltd and Hi-Tech Preinsulated Pipes (M) Sdn Bhd, members of the Seng Choon Group of Companies, manufacture preinsulated pipes utilizing the latest polyurethane technologies. Our high output polyurethane injection machine and spiral tubeforming machine can produce preinsulated pipes from Dia. 15mm up to Dia. 1000mm.

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COST SAVINGS Preinsulated pipes are produced in mass production on project basis, and all raw materials directly imported to maintain competitive prices. The preinsulated pipes will be supplied to site fully jacketed and insulated to minimize site work and site wastage

FLEXIBLE DESIGN SYSTEM Preinsulated pipes are manufactured in accordance to each project specification and requirements. Tailor made design and any special requests are easily formulated. Hi-Tech Preinsulated Pipes have been used for various applications such as refrigerant, chilled water, hot water pipes, etc..

AIR-TIGHT OUTER JACKET The outer jacket is produced by using spiral wound four-ply hydraulic locking system in inside lockseamed. The spiral jacket is completely air-tight and has high compressive strength and rigidity.

QUALITY CONTROL All preinsulated pipes are produced under strict quality control in the factory to ensure each pipe meets specifications. Well-trained QC personnel are stationed at each step of the production process to ensure the highest product standard.

LOWEST THERMAL CONDUCTIVITY Polyurethane foam having the lowest thermal conductivity among commercial insulation materials that results in excellent insulation properties and durability.

ADVANTAGES OF USING HI-TECH PREINSULATED PIPES

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GUIDE SPECIFICATION FOR HI-TECH PREINSULATED PIPES

RECOMMENDED SPECIFICATION FOR PREINSULATED PIPES IS AS FOLLOWS:

Hi-Tech Preinsulated Pipes are factory preinsulated and consist of carrier pipes insulated with rigid polyurethane foam which are protected with outer jackets.

A preinsulated pipe consists of the following main components:

01 / OUTER JACKET

02 / RIGID POLYURETHANE INSULATION

03 / CARRIER PIPE

1 / CARRIER PIPES The carrier pipes are available in black steel, galvanized steel and plastic.

Dia. 15mm to 150mm – BS 1387 Heavy (Class “C”) or Medium (Class “B”)

Dia. 200 to 650mm – API 5L Grade B; ASTM A53/A106 Grade B; JIS G3452

Dia. 700 to 1000mm – API 5L Grade B

Dia. 20 to 110mm – PP-R and POB Pipes

2 / INSULATION HCFC 141b blown system is presently used as drop-in replacement for Freon system and has been widely used in pipe preinsulation. It has the advantage of good thermal conductivity. Other blown systems with zero ODP and almost none GWP such as Water (CO2), Ecomate and C-Pentane will be available in the future to meet the market needs.

2.1 / PhySICAL PROPERTIES OF POLyUREThANE FOAM Polyurethane foam (HCFC 141b blown system) that is machine injected and foamed in place completely filling the annular space between carrier pipe and outer jacket has the following physical properties.

3 / JACKET The jacket materials are specified and are sufficiently sized to allow for desired insulation thickness for optimum performance of piping system.

3.1 / FOR ABOVEGROUND PREINSULATED PIPES: HOT-DIPPED GALVANIzED STEEL JACKETS. Hi-Tech galvanized steel jackets which have spiral internal or external lockseams provide excellent protection for the insulation and form an air-tight vapor barrier.

3.2 / FOR UNDERGROUND PREINSULATED PIPES: HIGH DENSITY POLYETHYLENE (HDPE) CASING. HDPE casing is corrosion and impact resistance and can be direct buried.

The following table shows Hi-Tech Preinsulated Pipes’ galvanized steel jacket sizes and thicknesses.

Note: Other thicknesses of galvanized steel jackets are available upon request.

Hot-dipped Galvanized Steel Jacket – 3m, 6m and 12m long

HDPE Casing

INSULATION DENSITY Average 48 kg/m3 Average 80 kg/m3

THERMAL CONDUCTIVITY Average 0.021 W/m.K at 10ºC mean Average 0.026 W/m.K at 10ºC mean

SERVICE TEMPERATURE -50 to 100 oC -50 to 100 oC

COMPRESSIVE STRENGTH Average 250 kpa Average 450 kpa

WATER ABSORPTION < 2% <1.5%

CLOSED CELL CONTENT Minimum 90% by volume

FIRE PROPAGATION TEST Class “0” (BS 476 Part 6 and 7)

FIRE RATING 2 hours fire test with a temperature in excess of 1000ºC

HI-TECH GALVANIzED STEEL JACkET SIzES (MM)

THICkNESS OF HI-TECH GALVANIzED STEEL JACkETS (MM)

101, 127, 142, 152, 175, 203, 225, 254, 275, 304 0.5 (26 gauge)

318, 355, 381, 406, 431, 457, 486, 508, 534, 559, 588, 609

0.6 (24 gauge)

640, 660, 765, 810, 868, 968, 1070, 1165 0.8 (22 gauge)

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APPLICATIONS OF HI-TECH PREINSULATED PIPESHi-Tech Preinsulated Pipes has supplied various polyurethane preinsulated pipes for various applications. Ends of steel pipes can be plain, threaded, grooved or flanged before preinsulation.

AbOvEgROUND PREINSULATED STEEL PIPES (GALvANIzED STEEL OUTER JACKETS)

APPLICATIONS:

Chilled water pipes

Condensate drain pipes

Crude oil pipes

UNDERgROUND PREINSULATED STEEL PIPES (HDPE CASING)

APPLICATIONS:

Chilled water pipes

Condensate drain pipes

Refrigerant pipes

Crude oil pipes

PP-R & POb PREINSULATED PIPES

APPLICATIONS:

Hot water pipes

Cold water pipes

COPPER PREINSULATED PIPES

APPLICATIONS:

Refrigerant pipes

Hot water pipes

OThER PREINSUALTED PIPES - FIbER gLASS PIPES

APPLICATIONS:

Cool air pipes, etc.

AIR TEMP

ºC

% RELATIVE HUMIDITY

100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10

43 43 42 41 40 39 38 37 35 34 32 31 29 27 24 22 18 16 11 5

41 41 39 38 37 36 35 34 33 32 29 28 27 24 22 19 17 13 8 3

38 38 37 36 35 34 33 32 30 29 27 26 24 22 19 17 14 11 7 0

35 35 34 33 32 31 30 29 27 26 24 23 21 19 17 15 12 9 4 0

32 32 31 31 29 28 27 26 24 23 22 20 18 17 15 12 9 6 2 0

29 29 28 27 27 26 24 23 22 21 19 18 16 14 12 10 7 3 0

27 27 26 25 24 23 22 21 19 18 17 15 13 12 10 7 4 2 0

24 24 23 22 21 20 19 18 17 16 14 13 11 9 7 5 2 0

21 21 20 19 18 17 16 15 14 13 12 10 8 7 4 3 0

18 18 17 17 16 15 14 13 12 10 9 7 6 4 2 0

16 16 14 14 13 12 11 10 9 7 6 5 3 2 0

13 13 12 11 10 9 8 7 6 4 3 2 1 0

10 10 9 8 7 7 6 4 3 2 1 0

7 7 6 6 4 4 3 2 1 0

4 4 4 3 2 1 0

2 2 1 0

0 0

10 11

ENGINEERING DATA

TyPICAL INSULATION ThICkNESS TO PREvENT CONDENSATION CALCULATION FORMULAS FOR hEAT gAIN, hEAT LOSS AND CASINg TEMPERATURE

DEW POINT The following graph shows the dew point temperature at which condensations forms on the pipe.

EXAMPLE If the ambient temperature in a facility is 35ºC and the relative humidity is 85%, the intersection of the two shows that the Dew Point is reached at a temperature of 32ºC. This means that moisture vapor in the 35 ºC / 85% RH air will condense on the chiller pipe surface that is at the Dew Point temperature of 32ºC.

TYPICAL CALCULATION:

Ambient Temperature (Ta) = 35 ºC

Relative Humidity = 85%

Dew Temperature (Td) = 32 ºC

Chiller Water Temperature (Tw) = 6 oC

Dull metallic surface still air, α = 8 (W/m2K)

Insulation Thickness (L) = K(Td-Tw) / α(Ta-Td) = 0.021*(32-6) / 8*(35-32) = 0.023m = 23mm

Then a safety margin should be added in 50% is typical. The insulation thickness V.S cost of Air Conditioner unit and energy consumption should be also taken into account.

Therefore, typical pre-insulation thickness to prevent condensation is 23mm x 1.5 = 34.5mm

FORMULAInsulation Thickness:

L = K(Td-Tw) /α(Ta-Td) K = Thermal conductivity of insulation Td = Dew temperature (take reading from dew point table, it depends on ambient temperature and relative humidity)Tw = Operating temperature of cool store (piping insulation system)Ta = Ambient air temperature α = Surface coefficient

bright metal = 5.7 W/m2 K dull metal = 8 W/m2 K

where K= 0.021 W/m.K

where K= 0.021 W/m.K

Q (Tw – Ta)∏

LN +12K

D2D1

1αD1

=

01 HEAT GAIN

02 HEAT GAIN

Q (Tw – Ta)∏

LN +12K

D2D1

1αD2

=Tc Ta – Q∏αD2

=

Q = Heat gain or heat loss by insulation (W/m)Tw = Fluid temperature (ºC)Ta = Ambient air temperature (ºC)TC = Casing temperature (ºC)D2 = Casing outer diameter (m)D1 = Carrier pipe outer diameter (m)K = Thermal conductivity of insulation (W/m.K)α = Surface coefficient (W/m2.K) = 8 (Dull metallic surface still air)

Remarks: Design ambient air temperature Max. 35ºC DB, Min. 22ºC DB

To prevent condensation from occurring on casings of preinsulated chilled water pipes, casing temperature must be higher than the dew point.

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CASING TEMPERATURE OF

PREINSULATED PIPE

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HI-TECH PREINSULATION DATA

AvAILAbLE INSULATION ThICkNESS

hEAT gAIN AND hEAT LOSS vALUE by INSULATION ON PIPES (INSULATION DENSITy 48kg/M3)

Hi-Tech Preinsulated Pipes are available in various thicknesses upon customers’ requests. The following table shows the Hi-Tech preinsulation thicknesses which have been requested by customers.

  SERIES 25 SERIES 40 SERIES 50 SERIES 65 SERIES 75

NPS (MM)

CASING SIzE (MM)

INSULATION THICKNESS (MM) 1''

CASING SIzE (MM)

INSULATION THICKNESS (MM) 1½''

CASING SIzE (MM)

INSULATION THICKNESS (MM) 2''

CASING SIzE (MM)

INSULATION THICKNESS (MM) 2½''

CASING SIzE (MM)

INSULATION THICKNESS (MM) 3"

15 101 39.9

20 101 37.2

25 101 33.8 127 46.8

32 101 29.4 127 42.4

40 101 26.4 127 39.4 142 45.9 175 63.4

50 127 33.4 142 40.9 152 45.9 175 57.4

65 API 152 39.5 175 51.0 203 65.0

65 152 38.0 175 49.5 203 63.5

80 175 43.1 203 57.1 225 68.1

100 203 44.4 225 55.4 254 69.9

125 API 225 41.9 254 56.4 275 66.9

125 225 42.7 254 57.2 275 67.7

150 API 254 42.9 275 53.4 304 67.9 318 74.9

150 254 44.5 275 55.0 304 69.5 318 76.5

200 304 42.5 318 49.5 355 68.0 381 81.0

200 JIS 304 43.9 318 50.9 355 69.4 381 82.4

250 355 41.0 381 54.0 406 66.5 431 79.0

250 JIS 355 43.8 381 56.8 406 69.3 431 81.8

300 431 53.6 457 66.6 486 81.1

300 JIS 431 56.3 457 69.3 486 83.8

350 457 50.7 486 65.2 508 76.2

400 508 50.8 534 63.8 559 76.3

450 559 50.9 588 65.4 609 75.9

500 609 50.5 640 66.0 660 76.0

600 765 77.7

650 810 74.8

700 868 78.4

800 968 77.6

900 1070 77.8

1000 1165 74.5

Note: 1. Insulation thickness shown in above table indicates calculated thickness only; actual insulation thickness varies due to dimensional tolerance of carrier pipe OD and manufacturing dimensional tolerance of steel jacket.

2. Insulation thickness which is not shown in above table is also available upon request.

Note: For heat transfer value, negative means heat gain, positive means heat loss.

01 / ABOVEGROUND CHILLED WATER PIPES

Specifications : Chilled Water Pipes

Carrier pipe : 15mm to 150mm – BS 1387 Heavy or Medium Gauge 200mm to 650mm - API 5L Grade B; ASTM A53 Grade B 700mm to 1000mm - API 5L Grade B

Insulation : Rigid Polyurethane foam, Density 48kg/m3

Jacket : Galvanized steel inside lockseamed

Ambient temperature : 30 ºC

Fluid temperature : 6 ºC

PIPE SIzE (MM)

PIPE OD (MM)

CASING SIzE (MM)

INSULATION THICkNESS (MM)

HEAT GAIN (W/M)

PIPE SIzE (MM)

PIPE OD (MM)

CASING SIzE (MM)

INSULATION THICkNESS (MM)

HEAT GAIN (W/M)

15 21.3 101 39.9 -1.97 200 219.1 304 42.5 -9.1920 26.9 101 37.1 -2.30 318 49.5 -8.1425 33.7 101 33.7 -2.75 355 68.0 -6.37

127 46.7 -2.32 381 81.0 -5.5932 42.4 101 29.3 -3.44 250 273.0 355 41.0 -11.42

127 42.3 -2.78 381 54.0 -9.1240 48.3 101 26.4 -4.01 406 66.5 -7.73

127 39.4 -3.14 431 79.0 -6.76175 63.4 -2.40 300 323.9 431 53.6 -10.63

50 60.3 127 33.4 -4.03 457 66.6 -8.90142 40.9 -3.54 486 81.1 -7.60152 45.9 -3.30 350 355.6 457 50.7 -12.07175 57.4 -2.89 486 65.2 -9.80

65 76.1 152 38.0 -4.36 508 76.2 -8.63175 49.5 -3.67 400 406.4 508 50.8 -13.57203 63.5 -3.15 534 63.8 -11.20

80 88.9 152 31.6 -5.55 559 76.3 -9.65175 43.1 -4.48 450 457.2 559 50.9 -15.05203 57.1 -3.72 588 65.4 -12.16225 68.1 -3.33 609 75.9 -10.72

100 114.3 180 32.9 -6.55 500 508.0 609 50.5 -16.67203 44.4 -5.28 640 66.0 -13.24225 55.4 -4.52 660 76.0 -11.74254 69.9 -3.87 600 609.6 765 77.7 -13.54

125 139.7 225 42.7 -6.34 650 660.4 810 74.8 -15.03254 57.2 -5.12 700 711.2 868 78.4 -15.43275 67.7 -4.55 800 812.8 968 77.6 -17.58

150 165.1 254 44.5 -7.02 900 914.4 1070 77.8 -19.54275 55.0 -5.98 1000 1016.0 1165 74.5 -22.41304 69.5 -5.05318 76.5 -4.71

PP PIPE SIzE (MM)

PIPE OD (MM)

CASING SIzE (MM)

INSULATION THICkNESS (MM)

HEAT LOSS (W/M)

PP PIPE SIzE (MM)

PIPE OD (MM)

CASING SIzE (MM)

INSULATION THICkNESS (MM)

HEAT GAIN (W/M)

20 20.0 101 40.5 3.02 20 20.0 101 40.5 -1.89127 53.5 2.68 127 53.5 -1.68

25 25.0 101 38.0 3.48 25 25.0 101 38.0 -2.19127 51.0 3.03 127 51.0 -1.90

32 32.0 101 34.5 4.19 32 32.0 101 34.5 -2.64127 47.5 3.56 127 47.5 -2.23142 55.0 3.31 142 55.0 -2.07

40 40.0 101 30.5 5.13 40 40.0 101 30.5 -3.24127 43.5 4.21 127 43.5 -2.65142 51.0 3.87 142 51.0 -2.43

50 50.0 101 25.5 6.61 50 50.0 101 25.5 -4.19127 38.5 5.17 127 38.5 -3.25152 51.0 4.40 152 51.0 -2.76

63 63.0 127 32.0 6.75 63 63.0 127 32.0 -4.27142 39.5 5.92 142 39.5 -3.73175 56.0 4.80 175 56.0 -3.01

75 75.0 127 26.0 8.78 75 75.0 127 26.0 -5.58152 38.5 6.78 152 38.5 -4.27175 50.0 5.75 175 50.0 -3.61

90 90.0 142 26.0 10.11 90 90.0 142 26.0 -6.42175 42.5 7.23 175 42.5 -4.56203 56.5 6.01 203 56.5 -3.77

110 110.0 175 32.5 10.12 110 110.0 175 32.5 -6.41203 46.5 7.88 203 46.5 -4.96225 57.5 6.83 225 57.5 -4.29

02 / ABOVEGROUND HOT WATER PIPES (KELEN PP-R)

Specifications : Hot Water Pipes

Carrier pipe : 20mm to 110mm – Kelen PP-R Pipe

Insulation : Rigid Polyurethane foam, Density 48kg/m3

Jacket : Galvanized steel inside lockseamed

Ambient temperature : 30 ºC

Fluid temperature : 60 ºC

03 / ABOVEGROUND CHILLED WATER PIPES (KETRIX PP-R)

Specifications : Chilled Water Pipes

Carrier pipe : 20mm to 110mm – Ketrix PP-R Pipe

Insulation : Rigid Polyurethane foam, Density 48kg/m3

Jacket : Galvanized steel inside lockseamed

Ambient temperature : 30 ºC

Fluid temperature : 6 ºC

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hI-TECh PREINSULATED PIPES’ WEIghT TAbLEHI-TECH PREINSULATION THICKNESS, JACKET WEIGHT, FOAM WEIGHT, PIPE WEIGHT & TOTAL WEIGHT OF 6M STEEL PIPES DIA.15MM – 150MM (INSULATION DENSITY 48KG/M3)

PIPE SIzE

PIPE OD

JACkET SIzE

INSULATION THICkNESS

JACkET WEIGHT

FOAM WEIGHT

PIPE WEIGHT(kG)

TOTAL WEIGHT (kG)JACkET+FOAM+PIPE

mm mm mm inch mm kg kg "B" "C" Sch40 "B" "C" Sch40

15 21.3 101 1½ 39.9 8.89 2.12 7.32 8.70 7.62 18.33 19.71 18.63

20 26.9 101 1½ 37.1 8.89 2.06 9.58 11.40 10.14 20.53 22.35 21.09

25 33.7 101 1½ 33.7 8.89 1.97 14.64 17.82 15.00 25.50 28.68 25.86

127 2 46.7 11.18 3.26 14.64 17.82 15.00 29.08 32.26 29.44

32 42.4 101 1 29.3 8.89 1.83 18.84 23.04 20.34 29.56 33.76 31.06

127 1½ 42.3 11.18 3.11 18.84 23.04 20.34 33.13 37.33 34.63

40 48.3 101 1 26.4 8.89 1.71 21.66 26.58 24.30 32.26 37.18 34.90

127 1½ 39.4 11.18 2.99 21.66 26.58 24.30 35.83 40.75 38.47

175 2½ 63.4 15.40 6.14 21.66 26.58 24.30 43.20 48.12 45.84

50 60.3 127 1 33.4 11.18 2.71 30.60 37.02 32.64 44.49 50.91 46.53

142 1½ 40.9 12.50 3.59 30.60 37.02 32.64 46.69 53.11 48.73

152 2 45.9 13.38 4.23 30.60 37.02 32.64 48.21 54.63 50.25

175 2½ 57.4 15.40 5.86 30.60 37.02 32.64 51.86 58.28 53.90

65 76.1 152 1½ 38.0 13.38 3.86 39.06 47.40 51.78 56.30 64.64 69.02

175 2 49.5 15.40 5.49 39.06 47.40 51.78 59.95 68.29 72.67

203 2½ 63.5 17.86 7.79 39.06 47.40 51.78 64.71 73.05 77.43

80 88.9 152 1 31.6 13.38 3.30 50.82 60.60 67.74 67.50 77.28 84.42

175 1½ 43.1 15.40 4.93 50.82 60.60 67.74 71.15 80.93 88.07

203 2 57.1 17.86 7.23 50.82 60.60 67.74 75.91 85.69 92.83

225 2½ 68.1 19.80 9.27 50.82 60.60 67.74 79.89 89.67 96.81

100 114.3 180 1 32.9 12.66 4.20 72.60 86.40 96.42 89.46 103.26 113.28

203 1½ 44.4 17.86 6.11 72.60 86.40 96.42 96.57 110.37 120.39

225 2 55.4 19.80 8.15 72.60 86.40 96.42 100.55 114.35 124.37

254 2½ 69.9 22.35 11.17 72.60 86.40 96.42 106.12 119.92 129.94

125 139.7 225 1½ 41.9 19.80 6.75 97.20 106.80 130.62 123.65 133.25 157.07

254 2 56.4 22.35 9.77 97.20 106.80 130.62 129.22 138.82 162.64

275 2½ 66.9 24.20 12.18 97.20 106.80 130.62 133.48 143.08 166.90

150 165.1 254 1½ 42.9 22.35 8.09 115.20 127.20 169.56 145.42 157.42 199.78

275 2 53.4 24.20 10.50 115.20 127.20 169.56 149.68 161.68 204.04

304 2½ 67.9 26.75 14.14 115.20 127.20 169.56 155.88 167.88 210.24

318 3 74.9 33.54 16.03 115.20 127.20 169.56 164.77 176.77 219.13

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HI-TECH PREINSULATION THICKNESS, JACKET WEIGHT, FOAM WEIGHT, PIPE WEIGHT & TOTAL WEIGHT OF 6M STEEL PIPES DIA.200MM–1000MM (INSULATION DENSITY 48KG/M3)

HI-TECH PREINSULATION THICKNESS, JACKET WEIGHT, FOAM WEIGHT, PIPE WEIGHT & TOTAL WEIGHT OF 6M STEEL PIPES DIA.15MM – 150MM (INSULATION DENSITY 80KG/M3)

Note: 1. Hi-Tech preinsulated pipes have 150mm exposed ends to facilitate field joining. Jackets are about 5.7m long.

2. Insulation thickness and foam weight of carrier pipes shown on above tables indicate calculated value only. Actual weight varies due to tolerance of carrier pipe OD and manufacturing dimensional tolerance of steel jacket.

3. Insulation thicknesses shown on above tables are based on specifications of carrier pipes : Dia.15mm to 150mm – BS 1387 Heavy or Medium Gauge; Dia. 200 to 650mm - API 5L Gr.B, ASTM A53 Gr.B; Dia. 700 to 1000mm - API 5L Grade B.

4. For insulation thickness and foam weight, there are slight differences between API 5L Gr.B and BS1387 pipes on Dia.65mm, 125mm and 150mm; so are API 5L Gr.B and JIS pipes on Dia.200mm, 250mm and 300mm.

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PIPE SIzE

PIPE OD

JACkET SIzE

INSULATION THICkNESS

JACkET WEIGHT

FOAM WEIGHT

PIPE WEIGHT(kG)

TOTAL WEIGHT (kG)JACkET+FOAM+PIPE

mm mm mm inch mm kg kg JIS Std Sch40 JIS Std Sch40

200 219.1 304 1½ 42.5 26.75 9.64 180.60 255.30 255.30 217.25 291.69 291.69

318 2 49.5 33.54 11.54 180.60 255.30 255.30 225.33 300.38 300.38

355 2½ 68.0 37.44 16.94 180.60 255.30 255.30 235.24 309.68 309.68

381 3 81.0 40.18 21.10 180.60 255.30 255.30 242.13 316.58 316.58

250 273.0 355 1½ 41.0 37.44 11.18 254.40 361.74 361.74 303.67 410.36 410.36

381 2 54.0 40.18 15.33 254.40 361.74 361.74 310.57 417.25 417.25

406 2½ 66.5 42.82 19.60 254.40 361.74 361.74 317.48 424.16 424.16

431 3 79.0 45.46 24.14 254.40 361.74 361.74 324.66 431.34 431.34

300 323.9 431 2 53.6 45.46 17.55 318.00 442.68 478.20 381.76 505.69 541.21

457 2½ 66.6 48.20 22.56 318.00 442.68 478.20 389.51 513.44 548.96

486 3 81.1 51.26 28.50 318.00 442.68 478.20 398.51 522.44 557.96

350 355.6 457 2 50.7 48.20 17.89 406.20 487.50 567.30 472.29 553.59 633.39

486 2½ 65.2 51.26 23.82 406.20 487.50 567.30 481.28 562.58 642.38

508 3 76.2 53.58 28.57 406.20 487.50 567.30 488.35 569.65 649.45

400 406.4 508 2 50.8 53.58 20.24 465.60 559.02 739.80 539.42 632.84 813.62

534 2½ 63.8 56.32 26.12 465.60 559.02 739.80 548.04 641.46 822.24

559 3 76.3 58.96 32.05 465.60 559.02 739.80 556.61 650.03 830.81

450 457.2 559 2 50.9 58.96 22.45 525.00 630.60 935.22 606.41 712.01 1016.63

588 2½ 65.4 62.02 29.68 525.00 630.60 935.22 616.70 722.30 1026.92

609 3 75.9 64.23 35.13 525.00 630.60 935.22 624.36 729.96 1034.58

500 508.0 609 2 50.5 64.23 24.49 584.40 702.12 1100.52 673.12 790.84 1189.24

640 2½ 66.0 90.00 32.89 584.40 702.12 1100.52 707.29 825.01 1223.41

660 3 76.0 92.81 38.54 584.40 702.12 1100.52 715.75 833.47 1231.87

600 609.6 765 3 77.7 107.58 46.37 845.28 1531.44 999.23 1685.39

650 660.4 810 3 74.8 113.91 47.75 914.34 1663.62 1076.00 1825.28

700 711.2 868 3 78.4 122.06 53.81 986.04 1795.56 1161.91 1971.43

800 812.8 968 3 77.6 136.13 59.92 1129.44 2059.80 1325.49 2255.85

900 914.4 1070 3 77.8 150.47 67.18 1271.40 2321.28 1489.05 2538.93

1000 1016.0 1165 3 74.5 168.83 70.54 1414.74 2585.40 1654.11 2824.77

PIPE SIzE

PIPE OD

JACkET SIzE

PU THICkNESSJACkET WEIGHT

FOAM WEIGHT

PIPE WEIGHT (kG) TOTAL WEIGHT (kG) JACkET+FOAM+PIPE

inch mm mm inch mm kg kg "B" "C" Sch40 "B" "C" Sch40

15 21.3 101 1½ 39.9 8.89 3.53 7.32 8.70 7.62 19.74 21.12 20.04

20 26.9 101 1½ 37.1 8.89 3.43 9.58 11.40 10.14 21.90 23.72 22.46

25 33.7 101 1½ 33.7 8.89 3.29 14.64 17.82 15.00 26.82 30.00 27.18

33.7 127 2 46.7 8.93 5.43 14.64 17.82 15.00 29.00 32.18 29.36

32 42.4 101 1 29.3 8.89 3.05 18.84 23.04 20.34 30.78 34.98 32.28

42.4 127 1½ 42.3 8.93 5.19 18.84 23.04 20.34 32.96 37.16 34.46

40 48.3 101 1 26.4 8.89 2.85 21.66 26.58 24.30 33.40 38.32 36.04

48.3 127 1½ 39.4 8.93 4.99 21.66 26.58 24.30 35.58 40.50 38.22

48.3 175 2½ 63.4 12.30 10.24 21.66 26.58 24.30 44.20 46.84

50 60.3 127 1 33.4 8.93 4.52 30.60 37.02 32.64 44.05 50.47 46.09

60.3 142 1½ 40.9 9.98 5.98 30.60 37.02 32.64 46.56 52.98 48.60

60.3 152 2 45.9 10.69 7.04 30.60 37.02 32.64 48.33 54.75 50.37

60.3 175 2½ 57.4 12.30 9.76 30.60 37.02 32.64 52.66 59.08 54.70

65 76.1 152 1½ 38.0 10.69 6.43 39.06 47.40 51.78 56.18 64.52 68.90

76.1 175 2 49.5 12.30 9.15 39.06 47.40 51.78 60.51 68.85 73.23

76.1 203 2½ 63.5 14.27 12.98 39.06 47.40 51.78 66.31 74.65 79.03

80 88.9 152 1 31.6 10.69 5.50 50.82 60.60 67.74 67.01 76.79 83.93

88.9 175 1½ 43.1 12.30 8.22 50.82 60.60 67.74 71.34 81.12 88.26

88.9 203 2 57.1 14.27 12.05 50.82 60.60 67.74 77.14 86.92 94.06

88.9 225 2½ 68.1 19.80 15.46 50.82 60.60 67.74 86.08 95.86 103.00

100 114.3 180 1 32.9 12.66 7.00 72.60 86.40 96.42 92.26 106.06 116.08

114.3 203 1½ 44.4 14.27 10.18 72.60 86.40 96.42 97.05 110.85 120.87

114.3 225 2 55.4 19.80 13.59 72.60 86.40 96.42 105.99 119.79 129.81

114.3 254 2½ 69.9 22.35 18.61 72.60 86.40 96.42 113.56 127.36 137.38

125 141.3 225 1½ 41.9 19.80 11.09 97.20 106.80 130.62 128.09 137.69 161.51

141.3 254 2 56.4 22.35 16.12 97.20 106.80 130.62 135.67 145.27 169.09

141.3 275 2½ 66.9 24.20 20.14 97.20 106.80 130.62 141.54 151.14 174.96

150 168.3 254 1½ 42.9 22.35 13.12 115.20 127.20 169.56 150.67 162.67 205.03

168.3 275 2 53.4 24.20 17.14 115.20 127.20 169.56 156.54 168.54 210.90

168.3 304 2½ 67.9 26.75 23.21 115.20 127.20 169.56 165.16 177.16 219.52

168.3 318 3 74.9 27.99 26.36 115.20 127.20 169.56 169.55 181.55 223.91

02 03

SINgAPORE MALAySIA

HI-TECH PRE-INSULATION THICKNESS, JACKET WEIGHT, FOAM WEIGHT, PIPE WEIGHT & TOTAL WEIGHT OF 6M STEEL PIPES DIA.200MM–1000MM (INSULATION DENSITY 80KG/M3)

Note: 1. Hi-Tech preinsulated pipes have 150mm exposed ends to facilitate field joining. Jackets are about 5.7m long.

2. Insulation thickness and foam weight of carrier pipes shown on above tables indicate calculated value only. Actual weight varies due to tolerance of carrier pipe OD and manufacturing dimensional tolerance of steel jacket.

3. Insulation thicknesses shown on above tables are based on specifications of carrier pipes : Dia.15mm to 150mm – BS 1387 Heavy or Medium Gauge; Dia. 200 to 650mm - API 5L Gr.B, ASTM A53 Gr.B; Dia. 700 to 1000mm - API 5L Grade B.

4. For insulation thickness and foam weight, there are slight differences between API 5L Gr.B and BS1387 pipes on Dia.65mm, 125mm and 150mm; so are API 5L Gr.B and JIS pipes on Dia.200mm, 250mm and 300mm.

PIPE SIzE

PIPE OD

JACkET SIzE

PU THICkNESS

JACkET WEIGHT

FOAM WEIGHT

PIPE WEIGHT (kG)

TOTAL WEIGHT (kG) JACkET+FOAM+PIPE

inch mm mm inch mm kg kg JIS Std Sch40 JIS Std Sch40

200 219.1 304 1½ 42.5 26.75 16.07 180.60 255.30 255.30 223.86 298.12 298.12

219.1 318 2 49.5 27.99 19.23 180.60 255.30 255.30 228.25 302.52 302.52

219.1 355 2½ 68.0 31.24 28.24 180.60 255.30 255.30 240.51 314.78 314.78

219.1 381 3 81.0 33.53 35.16 180.60 255.30 255.30 249.72 323.99 323.99

250 273.0 355 1½ 41.0 31.24 18.63 254.40 361.74 361.74 305.36 411.61 411.61

273.0 381 2 54.0 33.53 25.55 254.40 361.74 361.74 314.58 420.82 420.82

273.0 406 2½ 66.5 42.82 32.67 254.40 361.74 361.74 330.99 437.23 437.23

273.0 431 3 79.0 45.46 40.24 254.40 361.74 361.74 341.20 447.44 447.44

300 323.9 431 2 53.6 45.46 29.25 318.00 442.68 478.20 393.96 517.39 552.91

323.9 457 2½ 66.6 48.20 37.60 318.00 442.68 478.20 405.06 528.48 564.00

323.9 486 3 81.1 51.26 47.49 318.00 442.68 478.20 418.01 541.43 576.95

350 355.6 457 2 50.7 48.20 29.81 406.20 487.50 567.30 484.21 565.51 645.31

355.6 486 2½ 65.2 51.26 39.70 406.20 487.50 567.30 497.16 578.46 658.26

355.6 508 3 76.2 53.58 47.61 406.20 487.50 567.30 507.39 588.69 668.49

400 406.4 508 2 50.8 53.58 33.73 465.60 559.02 739.80 552.91 646.33 827.11

406.4 534 2½ 63.8 56.32 43.53 465.60 559.02 739.80 565.45 658.87 839.65

406.4 559 3 76.3 58.96 53.41 465.60 559.02 739.80 577.97 671.39 852.17

450 457.2 559 2 50.9 58.96 37.42 525.00 630.60 935.22 621.38 726.98 1031.60

457.2 588 2½ 65.4 62.02 49.46 525.00 630.60 935.22 636.48 742.08 1046.70

457.2 609 3 75.9 64.23 58.55 525.00 630.60 935.22 647.78 753.38 1058.00

500 508.0 609 2 50.5 64.23 40.81 584.40 702.12 1100.52 689.44 807.16 1205.56

508.0 640 2 66.0 90.00 54.82 584.40 702.12 1100.52 729.22 846.94 1245.34

508.0 660 3 76.0 92.81 64.23 584.40 702.12 1100.52 741.44 859.16 1257.56

600 609.6 765 3 77.7 107.58 77.28 845.28 1531.44 184.86 1030.14 1716.30

650 660.4 810 3 74.8 113.91 79.58 914.34 1663.62 193.49 1107.83 1857.11

700 711.2 868 3 78.4 122.06 89.68 986.04 1795.56 211.74 1197.78 2007.30

800 812.8 968 3 77.6 136.13 99.87 1129.44 2059.80 236.00 1365.44 2295.80

900 914.4 1070 3 77.8 150.47 111.97 1271.40 2321.28 262.44 1533.84 2583.72

1000 1016.0 1165 3 74.5 168.83 117.56 1414.74 2585.40 286.39 1701.13 2871.79

18

04 JOB REFERENCES

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RELCRepublic PolytechnicRiver view MallRochesterRolls Royce LogisticRTOSAESLSCBScience ParkScotts CentreSeagate Resorts World Sentosa Integrated ResortSerangoon MallSGH PathologyShenton TowerShowa Denko FactorySignature BuildingSingapore Aviation Academy Singapore Post CentreSingapore PowerSky ventureSOHO @ Clark Quay ST AMKSt James Power StationStandard ChartedSuntec CityTang PlazaTamasek PolytechnicTamasek TowerTampines OneTBATetra PakThomson Medical CenterThomson PlazaTiong Bahru PlazaTMCTreasury BuildingUBI @BousteadUMCUnited World CollegeUOBv Hotel @ LavenderWheelock PlaceWoodlands Industrial ParkYishun HospitalYMCAYork HotelYS-ONE Building

1 Shamelin Mall CherasAmpang Puteri Specialist HospitalAngkor Palace Resort & Spa, CambodiaAsia Institute of MedicineAsian Institute of Medicine, Science & Technology(AIMST), KedahAssunta HospitalBangsar Shopping Centre East Wing - Upgrading Bangsar South City KLBatu Kawan Head-Quarters Biodiversity, RaubCambodia, Capital AirportCanon Factory Shah AlamCarrefour JohorCarrefour Tropicana Petaling JayaFico Shah AlamGenting First World HotelHighland Hotel, Genting HighlandImpiana Hotel Phase 2 & Link bridge KLCCIOI Mall PuchongJaya Jusco Seremban 2KL SentralKLCC Convention CentreKlinik Pakar Wanita Razit Norana, Tmn.Sri AndalanMahkamah DutaMajlis Perbandaran Johor BharuMajlis Perbandaran Shah AlamMakhamah PJManipal Melaka CollegeMelia HotelMid-valley City - The Gardens, North & South Tower, The Bamboo HotelMINT Phase 2MTD Capital GombakMv-BSA FactoryPetronas HospitalPetronas Kerteh Office PICO Shah AlamPJ Hilton HotelsPutrajaya 3C4Sabutek Plant, Teluk IntanST Microelectronics Muar, Johor

Sunway Pyramid Extension Tawakal HospitalTexas Instrument FactoryToshiba FactoryTraders Hotel KLCCUniveristy Kuala LumpurUOA Bangsar

19

15

CONTACTS

20

(A MEMBER OF SENG CHOON GROUP OF COMPANIES)

HI-TECH PREINSULATED PIPES (S) PTE LTD

SINGAPORE

HEAD OFFICE 32 CAvAN ROAD, SINGAPORE 209858 TEL: (65) 62988633 FAX: (65) 62971852, (65) 62984067

TUAS OFFICE 51 GUL CRESCENT, SINGAPORE 629545 TEL: (65) 68978880 FAX: (65) 68989663

HI-TECH PREINSULATED PIPES (M) SDN BHD

MALAYSIA

10 JALAN MAJISTRET U1/26, SEKSYEN U1, HICOM-GLENMARIE INDUSTRIAL PARK, 40150, SHAH ALAM, SELANGOR TEL: (60) 03 5569111 FAX: (60) 03 55692333