The document is a brochure for DRD Pipeline Group that outlines their vision, goals, values and products. Their vision is for DRD to communicate with the world and connect to the future as a world-class brand pipeline enterprise. They produce a variety of plastic pipes and fittings including HDPE, PVC, and PP-R pipes for uses like water supply, drainage, gas transportation, cable protection and more. They aim to serve society, develop employees and the enterprise.

1. DRD GROUP BROCHURE
2019 version
Our vision: DRD Pipeline communicates with the world and connects to the
future!
Our goal: Quality seeks survival, creation seeks development, grows with
customers and operates in good faith!
Our expected value: Build DRD to be a world-class brand pipeline
enterprise!
Our mission: Serve the society, achieve employees and develop the
enterprise!
TIANJIN DINGRUNDA GROUP CO.,LTD
Add: 504-505 New City Center,No.3 Wanhui Street,Xiqing District, Tianjin City, China.
Tel: 0086-022-59658482; Fax: 0086-022-59658482
Mobile: +0086-13920465041 (WhatsApp, Wechat)
Email: sophia@drdcn.com; Website: www.drdcn.com

2. Contents
Brief Introduction
* HDPE pipes&fittings for water supply
* HDPE pipes&accessories for dredging
* HDPE pipes&fittings for siphon drainage
* HDPE pipes&fittings for gas transportation
* HDPE pipes for communication cable protection
* HDPE silicon core pipe for telecommunication system
* Steel mesh reinforced HDPE pipes (SRTP pipes)&fittings for water supply
* HDPE porous pipes for cable protection
* Double wall corrugated HDPE pipes for drainage
* PVC-U Double Wall Corrugated Pipe
* Steel belt reinforced HDPE double wall corrugated pipes for drainage
* Type-B HDPE winding structure-wall pipes (Krah pipes) for drainage
* PP-R pipes&fittings for hot and cold water delivery
* PVC-U/PVC-UH pipes&fittings for water supply and drainage
* Small size HDPE Single/Double Wall Corrugated Pipe for Telecom Protection and drainage
* MPP pipes for electrical communication cable protection
* MPP double wall corrugated pipes for eletrical communication cable protection
* CPVC pipes for electrical cable protection
* Fiber glass reinforced plastic pipes(FRP pipes) for electrical cable protection
* PVC insulated electrical pipes

3. 1
Brief Introduction
Tianjin Dingrunda Group Co., Ltd was founded in 2003, which is engaged in
manufacturing, processing, supplying and exporting an unparalleled range of
plastic pipes and fittings, such as HDPE pipes&fittings for water supply, HDPE
pipes&fittings for siphon drainage, HDPE pipes&fittings for gas supply, HDPE
pipes&accessories for dredging, SRTP pipes&fittings for water supply, PP-R pipes
for hot and cold water delivery, PVC-U/PVC-UH pipes&fittings for water supply
and drainage, Double wall corrugated HDPE pipes for drainage, Steel belt
reinforced HDPE double wall corrugated pipes for drainage, HDPE krah pipes for
drainage, HDPE pipes for communication cable protection, MPP pipes for
electrical communication cable protection, MPP double wall corrugated pipes for
eletrical communication cable protection, CPVC pipes for electrical cable
protection, FRP pipes for electrical cable protection, PVC insulated electrical
pipes and so on.
Our unmatched expertise enables us to serve our clients with utmost accuracy
than our industry competitors. With more than 16 years’ hardwork, we have
established ourselves as a reliable and worthy supplier of plastic pipes and fittings.
We ensure that the quality of our range meets the requirements of our clients.
Further the expertise of our team as well as superior infrastructural setup ensures
that our assortment is precision finished and meets the exacting requirements of
our clients. We are committed to excellence and innovation, and have our eyes on
the market strategies and trends. Our range is offered to our clients in various
specifications of working pressure, length and diameters. These pipes and fittings
are conform to various national and international quality standards. We aim to
provide complete customer satisfaction and increase our turnover.
We cater basically to European countries, North America countries, South
America countries, Oceania countries, Asian countries, Middle East, African
countries and supply all over China under the able guidance of our company’s
long-term planning strategy and view of honest and trustworthy value. Welcome
customers to visit our factory, and go forward hand in hand with us!

4. 2
HDPE pipes&fittings for water supply
DN/OD: 20mm – 1600mm Materials: PE100 or PE80 Brand OEM: YES
Standard: ISO4427, AS/NZS4130, DIN8074, GB/T13663-2000
Color: Black with blue strips, Black with green strips, or as client’s requirement
Fittings offered: Socket fusion, butt fusion, electrical fusion, Mechanical compression connection
Physical properties index:
No. Item Requirements
1 Percentage of breaking-elongation,% ≥350
2 Longitudinal reversion(110℃),% ≤3
3 Oxidation induction time (200℃)min ≥20
4
Weather resistance ①
(After the pipe has
accepted the aging
energy which equal to
or more than 3.5GJ/㎡)
80℃ static hydraulic strength (165h) No break, no leakage.
Percentage of breaking-elongation,% ≥350
Oxidation induction time (200℃)min ≥10
① . Only suitable for pipe in blue color.
Application field: Drinking water supply pipe for urban and rural area, liquid transmission pipe in
chemical, chemical fiber, food, forestry and metallurgy industry, waste water drainage pipe, mining
slurry transmission pipe for mining field.
Applications:
1. Urban potable water pipeline
network system.
2. Replaceable cement pipe,
iron pipe and steel pipes.
3. Fire fighting pipeline.
4. Landscaping water supply
network.
5. Sewage discharge pipes.
6. Ore and mud transfers.
7. Agricultural irrigation pipe.
Features:
1. Nontoxic
2. Corrosion resistance
3. No Leakage
4. Higher flow capacity than steel pipes
5.Convenient for construction and installation
6. Lower installation costs than cement and steel
pipes
7. Longevity of working life more than 50 years
8. Can be recycled and environment-friendly

5. 3
Specification:
PE100 0.4MPa 0.5MPa 0.6MPa 0.8MPa 1.0MPa 1.25MPa 1.6MPa 2.0MPa 2.5MPa
Outside
Diameter
PN4 PN5 PN6 PN8 PN10 PN12.5 PN16 PN20 PN25
SDR41 SDR33 SDR26 SDR21 SDR17 SDR13.6 SDR11 SDR9 SDR7.4
Wall Thickness (en)
20 1/2" - - - - - - 2.0 2.3 3.0
25 3/4" - - - - - - 2.3 3.0 3.5
32 1" - - - - - 3.0 3.6 4.4
40 1 1/4" - - - - - 3.0 3.7 4.5 5.5
50 1 1/2" - - - - 3.0 3.7 4.6 5.6 6.9
63 2" - - - 3.8 4.7 5.8 7.1 8.6
75 2 1/2" - - 3.6 4.5 5.6 6.8 8.4 10.3
90 3" - - 4.3 5.4 6.7 8.2 10.1 12.3
110 4" - - 4.2 5.3 6.6 8.1 10.0 12.3 15.1
125 5" 4.8 6.0 7.4 9.2 11.4 14.0 17.1
140 5 1/2: 5.4 6.7 8.3 10.3 12.7 15.7 19.2
160 6" 4.9 6.2 7.7 9.5 11.8 14.6 17.9 21.9
180 6" 5.5 6.9 8.6 10.7 13.3 16.4 20.1 24.6
200 8" 6.2 7.7 9.6 11.9 14.7 18.2 22.4 27.4
225 8" 6.9 8.6 10.8 13.4 16.6 20.5 25.2 30.8
250 10" 7.7 9.6 11.9 14.8 18.4 22.7 27.9 34.2
280 10" 8.6 10.7 13.4 16.6 20.6 25.4 31.3 38.3
315 12" 7.7 9.7 12.1 15.0 18.7 23.2 28.6 35.2 43.1
355 14" 8.7 10.9 13.6 16.9 21.1 26.1 32.2 39.7 48.5
400 16" 9.8 12.3 15.3 19.1 23.7 29.4 36.3 44.7 54.7
450 18" 11.0 13.8 17.2 21.5 26.7 33.1 40.9 50.3 61.5
500 20" 12.3 15.3 19.1 23.9 29.7 36.8 45.4 55.8 -
560 22" 13.7 17.2 21.4 26.7 33.2 41.2 50.8 62.5 -
630 24" 15.4 19.3 24.1 30.0 37.4 46.3 57.2 70.3 -
710 28" 17.4 21.8 27.2 33.9 42.1 52.2 64.5 79.3 -
800 32" 19.6 24.5 30.6 38.1 47.4 58.8 72.6 89.3 -
900 36" 22.0 27.6 34.4 42.9 53.3 66.2 81.7 - -
1000 40" 24.5 30.6 38.2 47.7 59.3 72.5 90.9 - -
1200 48" 29.4 36.7 45.9 57.2 67.9 88.2 109.1 - -
1400 54" 34.3 42.9 53.5 66.7 82.4 102.9 - - -
1600 64" 39.2 49.0 61.2 76.2 94.1 117.6 - - -

6. 4
Technical data sheet:
No Items HDPE Pipe
1 Molecular ≥300 000
2 Density 0.960 g/㎝ 3
3 Tensile breaking strength ≥28 Mpa
4 Longitudinal contraction
rate of return
≤3%
5 Breaking elongation ≥500%
6 Resistant to corrosion good
7 Tensile strength ≥28Mpa
8 Static hydraulic strength
1)20℃,cycle stress 12.4Mpa,100h,no break,no leakage
2)80℃,cycle stress5.5Mpa,165h,no break,no leakage
3)80℃,cycle stress5.0Mpa,1000h,no break,no leakage
9 MFR(190℃,5kg,)g/10min ≤25%
10 Oxidation induction time
(200℃)min
≥20
Connection method:
Socket Fusion Joint
This technique consists of simultaneously heating both the external surface of the pipe and the
internal surface of the socket fitting until the material reaches fusion temperature; inspecting the
melt pattern; inserting the pipe end into the socket; and holding it in place until the joint
cools.Mechanical equipment is available and should be used for sizes larger than 2 inch diameter
to attain the increased force required and to assist in alignment.
Follow these general steps when performing socket fusion:
1.Select the equipment
2.Square and prepare the pipe ends
3.Heat the parts
4.Join the parts
5.Allow to cool
Butt Fusion Joint
The most widely used method for joining individual lengths of large diameter polyethylene pipe is
by heat fusion of the pipe butt ends.This technique, which precludes the need for specially
modified pipe ends or couplings, produces a permanent, economical and flow-efficient connection.
Field-site butt fusions may be made readily by trained operators using specially developed butt
fusion machines that secure and precisely align the pipe ends for the fusion process.
The six steps involved in making a butt fusion joint are:

7. 5
1.Securely fasten the components to be joined
2.Face the pipe ends
3.Align the pipe profile
4.Melt the pipe interfaces
5.Join the two profiles together
6.Hold under pressure
Electro Fusion Joint
This technique of heat fusion joining is somewhat different from the conventional fusion
joining.The main difference between conventional heat fusion and electro fusion is the method by
which the heat is applied. In conventional heat fusion joining, a heating tool is used to heat the
pipe and fitting surfaces.The electro fusion joint is heated internally,either by a wire coil at the
interface of the joint or, as in one design, by a conductive polymer.Heat is created as an electric
current is applied to the conductive material in the fitting.
General steps to be followed when performing electro fusion joining are:
1.Prepare the pipes
2.Clamp the fittings and pipe(s)
3.Apply the electric current
4.Cold and remove the clamps
HDPE pipe for dredging
DN/OD: 75mm - 900mm Materials: PE100 Brand OEM: YES
Fittings offered: HDPE flanged adaptor，bolts&nuts, Rubber blanket, PE floater, Rubber hose.
Features:
1. Excellent flexibility and strong toughness;
2. Anti abrasive, anti-aging, uvioresistant, corrosion resistant, long service life;
3. No breaking, no dripping, good velocity of flow to ensure the high transportation efficiency;
4. Flanges connection with bolts&nuts, dismountable to lower installation costs;
5. Better resistance to concussion capability than steel pipes;
6. Easy to install and dismantle, convenient for transportation to shorten the construction time and
improve efficiency.

8. 6
Specification:
Outside Diameter
0.8MPa 1.0MPa 1.25MPa
SDR21 SDR17 SDR13.6
75 2 1/2” 3.6 4.5 5.6
90 3” 4.3 5.4 6.7
110 4” 5.3 6.6 8.1
125 5” 6.0 7.4 9.2
140 5 1/2” 6.7 8.3 10.3
160 6” 7.7 9.5 11.8
180 6” 8.6 10.7 13.3
200 8” 9.6 11.9 14.7
225 8” 10.8 13.4 16.6
250 10” 11.9 14.8 18.4
280 10” 13.4 16.6 20.6
315 12” 15.0 18.7 23.2
355 14” 16.9 21.1 26.1
400 16” 19.1 23.7 29.4
450 18” 21.5 26.7 33.1
500 20” 23.9 29.7 36.8
560 22” 26.7 33.2 41.2
630 24” 30.0 37.4 46.2
710 28” 33.9 42.1 52.2
800 32” 38.1 47.4 58.8
900 36” 42.9 53.3 66.2
HDPE pipes&fittings for siphon drainage
DN/OD: 50mm – 315mm Materials: PE100 Brand OEM: YES
S series: S12.5 SDR26 Standard: CJ/T 250-2007 Fittings offered: S12.5 SDR26
Specification:
50*3.0 63*3.0 75*3.0 90*3.5 110*4.2 125*4.8 160*6.2 200*7.7 250*9.6 315*12.1

9. 7
HDPE pipe for gas supply system
DN/OD: 20mm – 630mm Materials: PE100, PE80 Brand OEM: YES
Standard: ISO4437, EN1555, GB/T15558
Color: Black with yellow line, Yellow Fittings offered: Electro fusion,Butt fusion
Features:
1. Non-toxic 2. Corrosion resistance 3. No leakage 4. High toughness 5. Excellent
resistance to quickly crack propagation (RCP) 5. Flexible and resistance to scratches
6. Good wear resistance 7. Convenient for construction 8. Low system cost
Specification:
20mm-630mm SDR17.6 SDR11 SDR9
20 2.3 3.0 3.0
25 2.3 3.0 3.0
32 2.3 3.0 3.6
40 2.3 3.7 4.5
50 2.9 4.6 5.6
63 3.6 5.8 7.1
75 4.3 6.8 8.4
90 5.2 8.2 10.1
110 6.3 10.0 12.3
125 7.1 11.4 14.0
140 8.0 12.7 15.7
160 9.1 14.6 17.9
180 10.3 16.4 20.1
200 11.4 18.2 22.4
225 12.8 20.5 25.2
250 14.2 22.7 27.9
280 15.9 25.4 31.3
315 17.9 28.6 35.2
355 20.2 32.3 39.7
400 22.8 36.4 44.7
450 25.6 40.9 50.3
500 28.4 45.5 55.8
560 31.9 50.9 62.5
630 35.8 57.3 70.3

10. 8
Technical data sheet:
Property Requirements Test Parameters
Hydrostatic Strength (HS) time to rupture≥100h 20ºC,PE-80 (9.0 MPa) PE100
(12.4Mpa)
time to rupture≥165h 80ºC,PE-80 (4.5MPa) PE100
(5.4Mpa)
time to rupture≥1000h 80ºC, PE-80(4.0MPa) PE100
(5.0Mpa)
Elongation at Break ≥350%
Weather resistance Stabilitya (165h/80 ºC),
Elongation at Break
E≥3.5GJ/m2
Resistance to crack
propagation (RCP)b
Full-scale test: dn≥250mm
or S4 test: for all size
PC,FS≥1.5×MOP S4
PC,S4≥MOP/2.4-0.072c
0 ºC
0 ºC
Resistance to chronic crack
growth en＞5mm
165h 80 ºC,0.8Mpa (test pressure)d
80 ºC,0.92Mpa(test pressure)e
Thermal Stability(Oxidation
Induction Time)
＞20min 200 ºC
Longitudinal retraction rate ≤3% 110 ºC
Melt Flow Rate(MFR) Change of MFR＜20% 190 ºC,5kg
Remarks:
a. Before thermal stability test, pipe wall should be cut off 0.2mm.
b.RCP test apply to PE pipe： MOP＞0.01Mpa, dn≥250mm piping system;
MOP＞0.4Mpa, dn≥90mm piping system
c. if test result of S4 test don’t fulfill the requirements, test again according to FS test, and final
result based on FS test.
d. PE80,SDR11 test parameters
e.PE100,SDR test parameters
HDPE pipes for communication cable protection
DN/OD: 20mm – 315mm Materials: HDPE Brand OEM: YES
Color: Black, Black with red strips, Black with blue strips etc
Fittings offered: Socket fusion fittings, Compression fittings
Installation: Open trench, Trenchless
Application: It’s for underground telecommunication conduit.

11. 9
Specification:
SDR Series SDR33 SDR26 SDR21 SDR17 SDR13.6 SDR11
Outside Diameter Wall Thickness (en)
20 - - - - 2.0 2.0
25 - - - - 2.3 2.3
32 - - - - 2.4 3.0
40 - - - - 3.0 3.7
50 - - - 3.0 3.7 4.6
63 - - - 3.8 4.7 5.8
75 - - 3.6 4.5 5.6 6.8
90 - - 4.3 5.4 6.7 8.2
110 4.2 5.3 6.6 8.1 10.0
125 4.8 6.0 7.4 9.2 11.4
140 5.4 6.7 8.3 10.3 12.7
160 4.9 6.2 7.7 9.5 11.8 14.6
180 5.5 6.9 8.6 10.7 13.3 16.4
200 6.2 7.7 9.6 11.9 14.7 18.2
225 6.9 8.6 10.8 13.4 16.6 20.5
250 7.7 9.6 11.9 14.8 18.4 22.7
280 8.6 10.7 13.4 16.6 20.6 25.4
315 9.7 12.1 15.0 18.7 23.2 28.6
HDPE silicon core pipe for telecommunication system
Size: 32/26, 34/28, 40/33, 46/38, 50/41, 63/54
Length: 500m – 3000m
Materials: HDPE Brand OEM: YES
Color: Black, yellow, green, blue, orange or other color as
client’s requirement.
Standard: GB/T 24456-2009 JT/T 496-2004
Sizes and property of HDPE silicon core pipe:
Specification
OD
(mm)
Min ID (mm)
Tickness
(mm)
length (m)
Elasticity
Before coiling After coiling
32/26 32 26 2.5 1000, 2000, 3000 ≤2 ≤3
34/28 34 28 3.0 1000, 2000, 3000 ≤2 ≤3
40/33 40 33 3.5 1000, 2000, 3000 ≤2.5 ≤3.5
46/38 46 38 4.0 1000, 1500 ≤3 ≤5
50/41 50 41 4.5 1000, 1500 ≤3 ≤5
63/54 63 54 5.0 1000, 1500 ≤3 ≤5

12. 10
Features:
1. Silicon core pipe is a new kind of composite pipe with silicone solid lubricant in inner wall,which
be widely used in optical communication network system of highway, railway,etc.
2. Adopt the mode of multi-machine co-extrusion, silicon core layer is synchronizely embedded in
the pipe. It will be lubricated and not be stripped forever.
3. The friction coefficient of the inner wall is very small. Optical cable (electric cable) can be
repeatedly extracted and tensioned in the pipe. By using cable blowing machine, one time blowing
length can be 1000 to 2000 meter under normal conditions.
4. Waterproof, damp-proof, can avoid the damage by rodent animals.
5. With great ring stiffness and toughness. In construction, its bending radius should not be less
than 10 times of the external diameter of the pipe.
6. Aging-resistant, anti-corrosion of chemicals. With long service life, and will not deteriorate within
50 years in the earth.
7. Convenient in construction. This will save time and the project cost less than 70% of the PVC
electronical pipe.
Application:
1. The optical cable of installation and protection .
2. Communication pipeline on highway and rail way.
3. Others Communication project pipeline.
Steel mesh reinforced HDPE pipes (SRTP pipes)&fittings for water supply
DN/OD: 50mm – 630mm
Materials: PE100, Steel wire
Color: Black with blue line, Black or as client’s requirement.
Fittings offered: Electro fusion fittings
1.Product structure
This series of products are new-type medium, high or low-pressure composite pipes reinforced by
high-strength plastic-covered steel wire and covered with composite thermal plastic at internal and
external surface. Owning to the reinforcement is covered in continuous thermal plastic, this kind of
composite pipe not only overcomes shortcomings of steel pipes and plastic pipes, but also has
common advantages of steel pipes and plastic steels. After the galvanized pipe is prohibited, it is a
revolutionary technological achievement for architectural and municipal water supply pipe and
also solves the urgent needs for large-diameter rigid pipes in petroleum, chemical engineering,
pharmacy, food, mine and gas field, etc. The piping system of steel wire mesh plastic reinforced
composite pipe is equipped with electric melting pipe fittings. During connection, the heating
elements in fittings will melt outer plastic on pipe and inner plastic on fittings and then connect
them together reliably.

13. 11
2.Product characteristics
● Has the strength higher than that of plastic pipe, rigidity and impact resistance.
● The anti-corrosive surfaces have the corrosion resistance as high as plastic pipe.
● Operating temperature is high and heat conductivity coefficient is low, so insulation of outer wall
is unnecessary in winter and no condensation will be formed in summer.
● The inner wall is smooth and free of any scale sediment, so the head loss is 30% lower than that
of steel pipe.
● The technology to connect pipes by electric melting is mature, electric-melting joints are highly
resistant to axial tension and multiple fittings of various specifications and varieties are available.
● It is convenient for transportation and construction because its weight is light. This pipe is high in
general reliability. And, under normal circumstances, its service life is up to 50 years.
● It is the best substitute of galvanized pipe because it is low in cost, hygienic and non-toxic.
3.Product standard compliance
Its hygienic indexes shall meet provisions in GB/T17219 “Standard for Hygienic Safety Evaluation
of Equipment and Protective Materials in Drinking Water”.
The product shall meet provisions in standard CJ/T189-2007.
4.Technical requirements
The color is generally black and also can be decided according to mutual agreement of the supply
and requisitioning parties. The internal and external surface of the pipe shall be smooth, may be
have small pits and bumps formed during natural shrinking and be free of any bubble, crack,
decomposition discoloration and obvious scratch. And, two ends of the pipe shall be cut flatly.
Suitable Electro fusion Fittings:
Stub end
Steel flange
Equal coupling
Reducing coupling
90 degree elbow
45 degree elbow
Equal tee
Reducing tee
And other customized fittings needed

14. 12
Specification:
Normal Diameter
(DN/OD) (mm)
Wall thickness (mm)
PN8 PN10 PN16 PN20
0.8MPa 1.0MPa 1.6MPa 2.0MPa
50 - - 4.5 5.0
63 - - 4.5 5.0
75 - - 5.0 5.0
90 - - 5.5 5.5
110 - 5.5 7.0 7.0
140 - 5.5 8.0 8.5
160 - 6.0 9.0 9.5
200 - 6.0 9.5 10.5
225 - 8.0 10.0 10.5
250 8.0 10.5 12.0 12.0
315 9.5 11.5 13.0 13.0
355 10.0 12.0 14.0 -
400 10.5 12.5 15.0 -
450 11.5 13.5 15.0 -
500 12.5 15.5 18.0 -
560 17.0 20.0 - -
630 20.0 23.0 - -
HDPE porous pipes for cable protection
Materials: HDPE
Color: White
Fittings offered: Coupler
Brand OEM: YES
Specification:
Holes
Unit：mm Direct buried pipe 6m/PC
Outside dia Inner hole dia Wall thickness tolerance Note
7 Φ108 Φ32 2.7 ±0.5 Roll 100M
5 Φ93 Φ32 2.6 ±0.5 Roll 150M
5 Φ82 Φ28 2.4 ±0.5 Roll 200M
5 Φ76 Φ26 2.4 ±0.5 Roll 200M

15. 13
Application:
Mainly used in Communication cable, Communication optical cable network, Long-distance
communication lines and Cable television broadcast transmission network, etc. Possess both
tensile strength and toughness, less laying process, convenient installation, safe and reliable and
low engineering cost.
Double wall corrugated HDPE pipes for drainage
DN/ID: DN75mm, DN90mm, DN100mm, DN145mm, DN225mm, DN300mm, DN400mm, DN500mm,
DN600mm, DN700mm, DN800
Materials: PE100
Color: Black, white, blue, yellow, or as client’s requirement.
Fittings offered: Rubber ring, Coupler.and manhole
Brand OEM: YES
Specification:
Ring stiffness Inner Diameter (mm) Ring stiffness Inner Diameter (mm)
SN8 (4KN/m²）
75
SN8 (4KN/m²）
75
100 100
145 145
160 160
200 200
225 225
300 300
400 400
500 500
600 600
700 700
800 800

16. 14
Features of HDPE double wall corrugated pipe:
1. Municipal engineering project: can be used for drainage and sewerage pipe.
2. Construction project: Can be used for building rain water pipe, storm sewer, and underground
drainage pipe, sewage pipe, ventilation pipe, etc.
3. Electrical telecom engineering project: Can be used for all kinds of power cable protection
conduit.
4. Industrial project: Widely used as drainage and sewerage pipe in chemical, medicine,
environmental industries.
5. Agriculture and garden projects: Can be used as irrigation pipe, sewerage and drainage pipe
for farmland and, garden, tea garden, treelawn and forest
6. Road engineering project: Can be used as seepage pipe, sewerage and drainage pipe for
railway and highway.
7. Mining engineering project: Can be used as ventilation pipe, air supply pipe and drain pipe.
8. HDPE perforated double-wall corrugated pipe with holes: can be used as water penetration
pipe and drain pipe for saline-alkali land and the highway
9. Golf and football field engineering project: Can be used as seepage pipe and drain pipe.
10. Other projects: Can be used as sewerage and drainage pipe for large-scale dock, port
engineering project, large airport engineering project, etc.
Technical data sheet:
Item Index
Ring stiffness SN4 (KN/m2) ≥4
Ring Stiffness SN8 (KN/m2) ≥8
Impact Strength (%) ≤10
Ring Suppleness
The sample is smooth without any recurvation or wall
loose
Oven Experiment no delamination and no crack
Creep Rate ≤4
PVC-U DOUBLE WALL CORRUGATED PIPE
Product name: PVC-U double wall corrugated pipe
OutsideDiameter:DN110mm,DN160mm,DN200mm,DN250mm,,DN315mm,DN400mm,DN500mm
Materials: PVC-U
Color: White, or as client’s requirement.
Fittings offered: Rubber ring or Coupler

17. 15
Specification:
Product name Ring stiffness Inner Diameter (mm)
PVC-U double wall corrugated pipe
SN4 (4KN/m2)
110
160
200
250
315
400
500
SN8 (8KN/m2)
110
160
200
250
315
400
500
Features of PVC-U double wall corrugated pipe:
1. Municipal engineering project: can be used for drainage and sewerage pipe.
2. Construction project: Can be used for building rain water pipe, storm sewer, and underground
drainage pipe, sewage pipe, ventilation pipe, etc.
3. Electrical telecom engineering project: Can be used for all kinds of power cable protection
conduit.
4. Industrial project: Widely used as drainage and sewerage pipe in chemical, medicine,
environmental industries.
5. Agriculture and garden projects: Can be used as irrigation pipe, sewerage and drainage pipe for
farmland and, garden, tea garden, treelawn and forest
6. Road engineering project: Can be used as seepage pipe, sewerage and drainage pipe for
railway and highway.
7. Mining engineering project: Can be used as ventilation pipe, air supply pipe and drain pipe.
8. PVC perforated double-wall corrugated pipe with holes: can be used as water penetration pipe
and drain pipe for saline-alkali land and the highway
9. Golf and football field engineering project: Can be used as seepage pipe and drain pipe.
10. Other projects: Can be used as sewerage and drainage pipe for large-scale dock, port
engineering project, large airport engineering project, etc.

18. 16
Steel belt reinforced HDPE double wall corrugated pipes for drainage
Outside Diameter: 300mm – 2400mm
Ring stiffness: SN8, SN12.5, SN16
Materials: HDPE, Steel belt
Color: Black, or as client’s requirement.
Fittings offered: HDPE sleeve(Electro fusion) and manhole
Brand OEM: YES
Specification:
ND/ID
(mm)
Dim.min
(mm)
Emin
(mm)
Emin
(mm)
Pmax
(mm)
Tmin
(mm)
E2min
(mm)
300 294 2.5 4.0 75 0.4 2.2
400 392 3.0 4.5 85 0.4 2.2
500 490 3.5 5.0 100 0.5 2.5
600 588 4.0 6.0 110 0.5 2.5
700 685 4.5 6.0 115 0.5 2.5
800 785 5.0 7.5 120 0.7 3.0
900 885 5.0 7.5 135 0.7 3.0
1000 985 5.0 8.0 150 0.7 3.0
1100 1085 5.0 8.0 165 0.7 3.0
1200 1185 5.0 8.0 180 0.7 3.0
1300 1285 5.0 8.0 210 1.0 3.0
1400 1385 5.0 8.0 210 1.0 3.0
1500 1485 5.0 8.0 220 1.0 3.0
1600 1585 5.0 9.0 230 1.0 3.5
1800 1785 5.0 9.0 230 1.0 3.5
2000 1985 6.0 9.0 235 1.0 3.5
2200 2185 6.0 9.0 235 1.2 3.5
2400 2385 6.0 10.0 235 1.2 3.5

19. 17
Physical Characters:
Item Typical Value
Ring Stiffness (KN/m2)SN16 ≥ 16
SN12.5 ≥ 12.5
SN8 ≥ 8
TIR ≤10
Ring Flexibility no rupture, no withdraw in two walls
Creep Proportion ≤2
Peel strength(20°C±5°C)/N/cm ≥ 100
Drying Test Chamber No delamination, no crack
Features of HDPE double wall corrugated pipe with steel belt:
(1) Using PE as anti-corrosion material, will not be corrupted by acid and oil in sewage and waste
water.
(2) The product is flexible, external impact, restoring performance is superior when external impact
occur, the foundation settlement case is not easy to break.
(3) The pipe base material can effectively use more than 50 years in 20 °C , strong aging
resistance.
(4) Even in the environment of 60 °C below zero, the pipe will not freeze to broken or leaking.
(5) Pipe weight is only 1/8 of the concrete pipe and two-thirds of traditional winding plastic tube
structure, easy to transport, construction is convenient, do not need to use large construction
equipment.
(6) Pipe is light, convenient connection, the excavation engineering requirement is not high, in the
city drainage engineering construction, save the project time and cost a lot.
(7) Connection mode is diversity and simple, simple and rapid construction at the scene.
(8) Pipe friction coefficient is low, strong medium conveying ability.
(9) Rubber inside is smooth, small friction resistance, fast drainage.
(10) Polyethylene itself is non-toxic renewable material, no pollution to the environment.
Applications of HDPE double wall corrugated pipe with steel belt:
1. Municipal drainage, urban drain piping system
2. Apartments, residential district underground buried sewage drainage
3. Highway embedded pipeline, golf course underground water seepage pipe network
4. Irrigation water, draining water projects, etc
5. Chemical industry, mining used in fluid transport and ventilation, etc
6. Underground pipeline protection and communication cable protective pipe, etc.

20. 18
Type-B HDPE winding structure-wall pipes (Krah pipes) for drainage
Outside Diameter: 300mm – 4000mm
Ring stiffness: SN10, SN12.5, SN16
Materials: HDPE
Color: Black, or as client’s requirement.
Fittings offered: HDPE sleeve&manhole
Brand OEM: YES
Specification:
Size mm Thickness mm ID mm OD mm
DN300 3.5 293 320
DN400 4.5 370 400
DN500 4.3 490 520
DN600 5 580 630
DN700 6.8 680 730
DN800 6 765 820
DN900 6.5 885 945
DN1000 6.5 955 1030
DN1100 6.3 1090 1160
DN1200 7.2 1150 1250
DN1300 7.5 1295 1310
DN1400 7.5 1390 1470
DN1500 8 1485 1503

21. 19
PP-R pipe for hot and cold water supply
Application of PPR Pipe
As a key type of Construction Material, it is widely used in the following fields:
1. Portable water supply in residential buildings, hospitals, hotels, shipbuilding etc;
2. Pipe networks for rainwater utilization systems, swimming pool facilities, agriculture and
horticulture, industry, i.e. transport of aggressive fluids (acids, etc);
3. Heating pipe for residential building.
Specification:
Outer Diameter
(mm)
Wall Thickness (mm)
S5, PN10
1.25MPa
(Cold water)
S4, PN16
1.6MPa
(Cold water)
S3.2, PN20
2.0MPa
(Hot water)
S2.5, PN25
2.5MPa
(Hot water)
20 2.0 2.3 2.8 3.4
25 2.3 2.8 3.5 4.2
32 2.9 3.6 4.4 5.4
40 3.7 4.5 5.5 6.7
50 4.6 5.6 6.9 8.3
63 5.8 7.1 8.6 10.5
75 6.8 8.4 10.3 12.5
90 8.2 10.1 12.3 15.0
110 10.0 12.3 15.1 18.3
125 11.4 14.0 17.1 20.8
140 12.7 15.7 19.2 23.3
160 14.6 17.9 21.9 26.6
200 18.2 22.2 27.9 33.3
Characteristics of PPR Pipe
1. Highly hygienic & non-toxic;
2. Light weight & no leakage;
3. Easy installation & handling;
4. No calcification & sedimentation;
5. No bacterial & fungal growth;
6.Heat-preservation and energy-saving;
7.Recyclable—benefit for environment.
Diameter: 20mm – 200mm
Standard: DIN8077/8078, ISO15874
Materials: Hyosung R200P
Color: White, Grey, Green, Blue, or as client’s
requirement.
Form supplied: 4m straight lengths or client’s
requirement.
Fittings offered: All
Standard:DIN 8077/8078

22. 20
PVC-U pipe for water supply and drainage
Standard: ISO4422, BS EN1452, GB/T10002.1,
Outside Diameter: DN20 – DN630mm
Working Pressure: PN6.3 – PN16
Materials: PVC resin
Color: White, Grey, Orange, or as client’s requirement.
Fittings offered: All OEM/ODM: YES
Specification:
Normal Diameter
(DN/OD) (mm)
Wall thickness (mm)
PN6.3 PN8 PN10 PN12.5 PN16
0.63MPa 0.8MPa 1.0MPa 1.25MPa 1.6MPa
20 1.5
25 1.5 2.0
32 1.6 2.0 2.4
40 1.5 1.6 2.0 2.4 3.0
50 1.6 2.0 2.4 3.0 3.7
63 2.0 2.5 3.0 3.8 4.7
75 2.3 2.9 3.6 4.5 5.6
90 2.8 3.5 4.3 5.4 6.7
110 2.7 3.4 4.2 5.3 6.6
125 3.1 3.9 4.8 6.0 7.4
140 3.5 4.3 5.4 6.7 8.3
160 4.0 4.9 6.2 7.7 9.5
180 4.4 5.5 6.9 8.6 10.7
200 4.9 6.2 7.7 9.6 11.9
225 5.5 6.9 8.6 10.8 13.4
250 6.2 7.7 9.6 11.9 14.8
280 6.9 8.6 10.7 13.4 16.6
315 7.7 9.7 12.1 15.0 18.7
355 8.7 10.9 13.6 16.9 21.1
400 9.8 12.3 15.3 19.1 23.7
450 11.0 13.8 17.2 21.5 27.7
500 12.3 15.3 19.1 23.9 29.7
560 13.7 17.2 21.4 26.7
630 15.4 19.3 24.1 30.0

23. 21
1. Light weight, convenient transportation and handling: Light weight of PVC pipe material is
convenient for handling, loading and unloading, and installation.
2. Excellent chemical resistance: PVC-U pipe has the good acid, alkali and corrosion resistance.
It’s very suitable for the chemical industry.
3. Small flow resistance: It’s inner and outside surface wall is smooth. Its roughness coefficient is
only 0.009, which is lower than other pipes. Under the same flow rate, clients can choose smaller
pipe diameter to keep the same flow capacity.
4. Strong mechanical strength: Its high resistance to inner water pressure, external pressure
and impact are suitable for all kinds of conditions of piping engineering projects.
5. Good electric insulation properties: PVC-U pipe has excellent electrical insulation properties
which is very suitable for wire and cable protection sleeve.
6. Low cost of PVC pipeline project: PVC-U pipe is low prices. Transportation and installation
are convenient, service life is long, so the total cost is low.
7. Does not affect the water quality: Dissolution test has confirmed that PVC-U pipe does not
affect the water quality, and it’s very suitable for large-scale popularization and application.

24. 22
Application of PVC-U pipe:
1. Civil construction, industrial building indoor water supply, and waste water drainage and
sewerage system.
2. The residential area, plant area of buried water supply system.
3. The urban water supply pipeline system.
4. Water treatment plant’s water piping system.
5. Mariculture.
6. Garden irrigation, drilling engineering, and other industrial pipe.
Small size HDPE Single/Double Wall Corrugated Pipe for Telecom Protection and drainage
DN/OD: 40mm – 160mm
Materials: HDPE
Color: Black, white, red, green, blue, or as client’s requirement.
Fittings offered: All
Specification:
Size Specification ID/OD MM
DN50 40/50
DN63 50/63
DN75 63/75
DN80 70/80
DN88 78/88
DN90 80/90
DN105 93/105
DN110 93/110
DN116 100/116
DN155 142/155
DN160 145/160

25. 23
Notes:
1. Corrugated conduit is available in rolls and straight.
2. Corrugated conduit is available in perforated (slotted),
drilled (holes) or non-perforated configurations.
3. Corrugated conduit is available double wall (dual-wall)
or single wall corrugated pipe.
4. Different colors are available.
5. Length: According to customer’s requirement
MPP pipes and MPP double wall corrugated pipes for electrical communication
cable protection
DN/OD: 75mm – 250mm Materials: MPP
Connection: Butt fusion
Color: White or Orange
Fittings offered: Coupler and bend
Specification
75*5.0 90*5.0 100*5.0 175*5.0
75*6.6 90*6.0 100*6.0 175*6.0
75*7.0 90*7.0 100*7.0 175*7.0
75*8.0 90*8.0 100*8.0 175*8.0
75*9.0 90*9.0 100*9.0 175*9.0
75*10.0 90*10.0 100*10.0 175*10.0
75*11.0 90*11.0 100*11.0 175*11.0
75*12.0 90*12.0 100*12.0 175*12.0
75*13.0 90*13.0 100*13.0 175*13.0
Specification 175*14.0
100*5.0 125*5.0 150*5.0 175*15.0
100*6.0 125*6.0 150*6.0 175*16.0
100*7.0 125*7.0 150*7.0 175*17.0
100*8.0 125*8.0 150*8.0 175*18.0
100*9.0 125*9.0 150*9.0 175*19.0
100*10.0 125*10.0 150*10.0 175*20.0
100*11.0 125*11.0 150*11.0 175*21.0
100*12.0 125*12.0 150*12.0 175*22.0
100*13.0 125*13.0 150*13.0
Specification
160*5.0 167*5.0 180*5.0 192*5.0
HDPE Corrugated Conduit
Advantage:
1. Corrosion Resistant
2. Lower Installation Costs
3. Light weight and easy installation
4. Smooth interior walls
5. Long life time
6. Environment-friendly

26. 24
160*6.0 167*6.0 180*6.0 192*6.0
160*7.0 167*7.0 180*7.0 192*7.0
160*8.0 167*8.0 180*8.0 192*8.0
160*9.0 167*9.0 180*9.0 192*9.0
160*10.0 167*10.0 180*10.0 192*10.0
160*11.0 167*11.0 180*11.0 192*11.0
160*12.0 167*12.0 180*12.0 192*12.0
160*13.0 167*13.0 180*13.0 192*13.0
160*14.0 167*14.0 180*14.0 192*14.0
160*15.0 167*15.0 180*15.0 192*15.0
160*16.0 167*16.0 180*16.0 192*16.0
160*17.0 167*17.0 180*17.0 192*17.0
160*18.0 167*18.0 180*18.0 192*18.0
160*19.0 167*19.0 180*19.0 192*19.0
160*20.0 167*20.0 180*20.0 192*20.0
160*21.0 167*21.0 180*21.0 192*21.0
160*22.0 167*22.0 180*22.0 192*22.0
Specification
200*5.0 219*5.0 225*5.0 250*5.0
200*6.0 219*6.0 225*6.0 250*6.0
200*7.0 219*7.0 225*7.0 250*7.0
200*8.0 219*8.0 225*8.0 250*8.0
200*9.0 219*9.0 225*9.0 250*9.0
200*10.0 219*10.0 225*10.0 250*10.0
200*11.0 219*11.0 225*11.0 250*11.0
200*12.0 219*12.0 225*12.0 250*12.0
200*13.0 219*13.0 225*13.0 250*13.0
200*14.0 219*14.0 225*14.0 250*14.0
200*15.0 219*15.0 225*15.0 250*15.0
200*16.0 219*16.0 225*16.0 250*16.0
200*17.0 219*17.0 225*17.0 250*17.0
200*18.0 219*18.0 225*18.0 250*18.0
200*19.0 219*19.0 225*19.0 250*19.0
200*20.0 219*20.0 225*20.0 250*20.0
200*21.0 219*21.0 225*21.0 250*21.0
200*22.0 219*22.0 225*22.0 250*22.0

27. 25
CPVC pipes for electrical cable protection
DN/OD: 75mm – 250mm
Materials: PVC Color: Orange
Fittings offered: Coupler and bend
Connection: Socket insert
Specification:
Item Outside diameter(mm) Thickness(mm) Basic inner diameter(mm)
1 90 3.0 84
2 110 4.0 102
3 110 5.0 100
4 125 5.0 115
5 139 5.0 129
6 160 5.0 150
7 167 6.0 155
8 167 8.5 150
9 200 8.5 183
10 219 8.5 202
Performance Index:
No. Item Technical index
1 Density(kg/m3) 1450
2 Friction coefficient ≤0.33
3 Volume resistivityΩ·cm ≥1x1013
4 Vicat softening temperature℃ TypeⅠ≥88; TypeⅡ≥93
5 Resistance of drop hammer 10/10 No break
6 Flattening test No break
7 Ring stiffness(kn/m2) ≥8
8 Longitudinal reversion ≤5
9 Flame resistance Self extinguish te≤30s
10 Dielectic strength test >30kv

28. 26
Fiber glass reinforced plastic pipes(FRP pipes) for electrical cable protection
DN/OD: 75mm – 250mm
Materials: Fiber glass
Color: green
Fittings offered: Socket insert
PVC insulated electrical pipes
DN/OD: 16mm – 50mm
Materials: PVC resin
Color: white, red, blue, green, black etc
Fittings offered: Socket insert

29. 27
Specifcaition:
16*1.0 20*0.5 25*1.0 32*1.1 40*1.3 50*1.5
16*1.1 20*0.7 25*1.1 32*1.4 40*1.5 50*1.8
16*1.2 20*0.9 25*1.2 32*1.5 40*1.8 50*2.0
16*1.4 20*1.0 25*1.3 32*1.8 40*2.0
16*1.5 20*1.2 25*1.4 32*2.0
16*1.6 20*1.3 25*1.5
20*1.4 25*1.6
20*1.5 25*1.7
20*1.6 25*1.8
20*1.8