1. CNBM
CNBM
Lianzhong
R
FRP PIPE
Sea Water Pipe Series
Lianyungang Zhongfu Lianzhong Composites Group Co., Ltd
Lianyungang ● China
We can do it better.
连云港中复连众复合材料集团有限公司
Lianyungang Zhongfu Lianzhong Composites Group Co., Ltd
地址： 连云港市海连东路１９５号２２２００６
Ａｄｄ： １９５＃，Ｈａｉｌｉａｎ Ｅａｓｔ Ｒｏａｄ Ｌｉａｎｙｕｎｇａｎｇ Ｃｉｔｙ Ｊｉａｎｇｓｕ Ｐｒｏｖｉｎｃｅ，Ｃｈｉｎａ
电话 Ｔｅｌ： ００８６－５１８－８５１５０３３０ 传真 Ｆａｘ： ００８６－５１８－８５１５０３２９
网址 Ｈｔｔｐ：／／ｗｗｗ．ｌｚｆｒｐ．ｃｏｍ
2. Contents
1. Company Profile
2. Product Advantages
3. Performance Standards
4. Qualification Testing
5. Control Testing
6. Pipe Performance and Dimensions
7. Pipe Joints
8. Fittings and Accessories
9.Unloading，Handling，Transportation and Storage
10. Installation
11. Successful case
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LNG receiving station
Sea water
desalination plant
Application fields
Power Plant
3. CNBM
Lianzhong
R
1. Company Profile
Zhongfu Lianzhong is a modern joint-venture company which is holding by China Composites Group Corporation Ltd.which
is branch company of CNBM,sharing by Goldman Sachs,Hony Capital and Govtor Capital.The headquarter of Zhongfu
Lianzhong locate in Lianyungang city,Jiangsu Province.The production base locate in Lianyungang,Shenyang,Baotou and
Qiuqu.The research and development department locate in Thueringen state of Germany. Zhongfu Lianzhong was founded
in 1989 with more than 2800 employees,of which engineering staff is more than 600.Now the company has developed to a
national key new technology company,which gathers composites product design,manufacture and service together,with
rotor blade,FRP pipe,FRP tank and high pressure pipe as main products.
The ISO9001-2000, ISO14001 and OHSAS18001 quality system of company have gone well now.The technical center is
recognized as state-level enterprise technical centers by five departments of China.The company has the first indoor rotor
blade inspection center. FRP pipe of Lianzhong brand have been awarded the title of “ChinaTop brand” and the certificate
of API and WRAS,which are applied in electric power, nuclear power, sea water desalination, LNG Terminal and water
supply projects around Middle East,Africa and Centeral Asia.The company is the largest composites manufacture company
in China.They have 20 production lines of FRP pipe and tank and manufacture 80000 tons of FRP pipe,rotor blade and tank
every year. Zhongfu Lianzhong have manufactured the largest diameter FRP tank in China,25meters and is also the largest
rotor blade manufacture company.
“Making Best Use of Resources to Serve Construction” is our unalterable industry belief,”Unite the efforts to strive for the
best” is our remorseless spirit!The struggling aim of Zhongfu Lianzhong is to become:Asia top-tanking rotor blade
manufacture base,domestic leading composites products research and manufacture company,excellent supplier with
customers’ satisfaction,and modern company with highly responsibility of social civilization.
Workshops
Lianyungang Zhongfu Lianzhong Composites Group Co.; Ltd
Address：No.195, Hailian East Road, Lianyungang City, Jiangsu Province, Peoples Republic of China
ZhongfuLianzhong Jiuquan Co.; Ltd
Address：High-tech development area in Jiuquan City, Gansu Province, Peoples Republic of China
ZhongfuLianzhong Baotou Co.; Ltd
Address：Equipment Fabrication area in Baotou City, Inner Mongolia, Peoples Republic of China
ZhongfuLianzhong Shenyang Co.; Ltd
Address：High-tech development area in Tiexi District , Shenyang City,Liaoning Province, Peoples Republic of China
SINOI GmbH
Address：Kohnsteinbrücke 10
99734 Nordhausen, Germany
Main Products
GRV PIPE
GRP PIPE
GRE PIPE
ROTAR BLADE
FRP TANK
LARGE DIAMETER TANK FABRICATE AT SITE
CNG CYLINDER
2
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1
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4. 2.Product Advantages
Features & Benefits
Corrosion-resistant
•Long, effective service-life materials
•No need for linings, coatings, cathodic protection, wraps or other forms of corrosion protection
•Low maintenance costs
•Hydraulic characteristics essentially constant over time
Light weight
(1/4 weight of ductile iron; 1/10 weight of concrete)
•Low transport costs (nestable)
•Eliminates need for expensive pipe handling equipment
Long standard lengths
(6, 12 metres)
•Fewer joints reduce installation time
•More pipe per transport vehicle means lower delivery costs
Extremely smooth bore
•Low friction loss means less pumping energy needed and lower operating costs
•Minimum slime build-up can help lower cleaning costs
Precision sealability
With elastomeric rubber rings
•Tight, efficient joints designed for bell & spigot to eliminate infiltration and ex-filtration
•Ease of joining, reducing installation time
• Accommodates small changes in line direction without fittings or differential settlement
Flexible manufacturing
•Custom diameters can be process manufactured to provide maximum flow volumes with ease of installation for rehabilitation
lining projects
High technology pipe design
•Lower wave celerity than other piping materials can mean less cost when designing for surge and water hammer pressures
High technology pipe manufacturing system producing pipe that complies
to stringent performance standards (AWWA, ASTM, DIN, EN, etc.)
•High and consistent product quality worldwide which ensures reliable product performance
3.Performance Standards
ASTM
AWWA
Standards developed by ASTM and AWWA are applied to a variety of fiberglass pipe applications including conveyance
of sanitary sewage, water and industrial waste. A thread common to all of the product standards is that they are all
performance based documents. This means that the required performance and testing of the pipe is specified.
Currently there are several ASTM Product Standards in
use which apply to a variety of fiberglass pipe
applications.
All product standards apply to pipe with diameter ranges
of 25 mm to 4000 mm and require the flexible joints to
withstand hydrostatic testing in configurations (per ASTM
D4161) that simulate exaggerated in-use conditions.
These standards include many tough quali¬fication and
quality control tests. Lianzhong pipe is designed to meet
all of these ASTM standards.
AWWA C950 is one of the most comprehensive product standards in existence for fiberglass pipe. This standard for
pressure water applications has extensive require¬ments for pipe and joints, concentrating on quality control and
prototype qualification testing. Like ASTM standards, this is a product performance standard.Lianzhong pipe is designed
to meet the performance requirements of this standard. AWWA has recently issued a new standards manual, M-45, which
includes several chapters on the design and fabricate of GRP pipe for buried and aboveground installations.
ASTM
ASTM
ASTM
D3262
D3517
D3754
Gravity Sewer
Pressure Pipe
Pressure Sewer
AWWA
AWWA
C950
M-45
Fiberglass Pressure Pipe
Fiberglass Pipe Design Manual
CHINA STANDARD
Currently there are several China Standards in use for GRP pipe, such as GB21238、JC552、CECS190、CECS129,
which basically equivalent foreign standard. The performance and design and burying of GRP pipe are specified by these
standard. Lianzhong participated in the formulating of these standards.
GB21238
JC552
CECS190
CECS129
Fiberglass pipe with sand filler
Fiberglass pressure pipe
Fiberglass pipe Design Manual
Fiberglass pipe Installation & Inspection Manual
Others
Other standardization organizations such as BS and DIN have also published performance specifications for GRP pipes.
Lianzhong pipe conforms to these standards’ performance requirements too.
DIN
BS
16868
5480
Glass Fiber-Reinforced Polyester Resin Pipes
Pipes and Fittings for Water and Sewage
CNBM
Lianzhong
R
4
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3
PAGE
5. 5.Control Testing
Raw Materials
Raw materials are delivered with vendor certification demonstrating their compliance with Zhongfu Lianzhong quality
requirements. In addition, all raw materials are sample tested prior to their use. These tests ensure that the pipe materials
comply with the specifications as stated.
Physical Properties
Finished Pipe
The manufactured pipe’s hoop and axial load capacities are verified on a routine basis. In addition,
pipe construction and composition are confirmed.
All pipes are subjected to the following control checks:
· Visual inspection
· Barcol hardness
· Wall thickness
· Section length
· Diameter
· Hydrostatic leak tightness test to 1.5 rated pressure (only PN6 and above)
On a sampling basis, the following control checks are performed:
· Pipe stiffness
· Deflection without damage or structural failure
· Axial and circumferential tensile load capacity
4.Qualification Testing
A common element shared by all standards is the need for a pipe manufacturer to demonstrate compliance with the standards’
minimum performance requirements. In the case of GRP pipe, these minimum performance requirements fall into both short-term
and long-term requirements. The most important of these and generally specified at the same level of performance in all the
previously defined standards is joint, initial ring deflection, long-term ring bending, long-term pressure and strain corrosion
capability. Lianzhong pipe has been rigorously tested to verify conformance to the ASTM D3262, ASTM D3517, AWWA C950 and
DIN 16868 requirements.
A unique and important performance requirement for GRP gravity pipe used in sewer applications is the chemical testing of the
pipe in a deflected or strained condition. This strain corrosion testing is carried out in accordance with ASTM D3681, and requires
a minimum of 18 ring samples of the pipe to be deflected to various levels and held constant. These strained rings are then exposed
at the invert of the interior surface to 1.0N (5% by weight) sulphuric acid (see Figure 1). This is intended to simulate a buried septic
sewer condition. This has been shown to be representative of the worst sewer conditions including those found in the Middle East,
where many Lianzhong pipes have been successfully installed.
The time to failure (leakage) for each test sample is measured. The minimum extrapolated failure strain at 50 years, using a least
squares regression analysis of the failure data, must equal the values shown for each stiffness class. The value achieved is then
relatable to the pipe design to enable prediction of safe installation limitations for GRP pipe used for this type of service. Typically
this is 5% in-ground long-term deflection.
Strain Corrosion Testing
Figure 1
Strain Corrosion Test Apparatus
Stiffness Class Scv. Strain, %
SN2500
SN5000
SN10000
.49 (t/d)
.41 (t/d)
.34 (t/d)
Another important qualification test is the establishment of the Hydrostatic
Design Basis - HDB. This test is carried out in accordance with ASTM D2992
Procedure B and requires hydrostatic pressure testing to failure (leakage) of
many pipe samples at a variety of very high constant pressure levels. As in the
previously described strain corrosion test, the resulting data is evaluated on a
log-log basis for pressure (or hoop tensile strain) vs. time to failure and then
extrapolated to 50 years. The extrapolated failure pressure (strain) at 50 years,
referred to as the hydrostatic design basis (strain) or HDB, must be at least 1.8
times the rated pressure class (strain at the rated pressure).
In other words, the design criteria requires that the average pipe be capable of
withstanding a constant pressure of 1.8 times the maximum operating condition
for 50 years. Due to combined loading considerations, that is the interaction of
internal pressure and external soil loads; the actual long-term factor of safety
against pressure failure alone is higher than 1.8. This qualification test helps
assure the long-term performance of the pipe in pressure service.
Hydrostatic Design Basis - HDB
This important qualification test is conducted on joint prototypes for elastomeric gasket sealed bell and spigot joint. This is a severe
test carried out in accordance with ASTM D4161. It incorporates some of the most stringent joint performance requirements in the
piping industry for pipe of any material within the pressure and size ranges of Lianzhong pipe. ASTM D4161 requires these flexible
joints to withstand hydrostatic testing in configurations that simulate very severe in-use conditions. Pressures used are twice those
rated and 200 kPa (2 bar) is used for gravity flow pipe. Joint configurations include straight alignment, maximum angular rotation
and differential shear loading. A partial vacuum test and some cyclical pressure tests are also included.
Joint Testing
All pipes must meet the initial ring deflection levels of no visual evidence of cracking or crazing (Level A) and no structural
damage to the pipe wall (Level B) when vertically deflected between two parallel flat plates or rods.
AWWA C950 requires the test to be carried out, with the resulting
50-year predicted value used in the pipes’ design. Lianzhong pipe is
tested using the guidelines of ASTM D5365 “Long-Term Ring Bending
Strain of Fiberglass Pipe” and meets both requirements.
Lianzhong pipe has been tested and approved for the conveyance of
potable water meeting many of the worlds’s leading authorities’ and
testing institutes’ criteria, including:
● WRAS（Water Regulations Advisory Scheme）
● The license of drinking water safety products
Initial Ring Deflection
Long-Term Ring Bending
Potable Water Approvals
2500 5000 10000
Stiffness Class SN
Deflection
Level*
*Laboratory Test
A
B
15%
25%
12%
20%
9%
15%
CNBM
Lianzhong
R
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65
6. 6.Pipe Performance and Dimensions
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
1200
1400
1500
1600
1800
2000
2200
2500
2800
3000
3200
3600
4000
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
5 . 0
5 . 0
6 . 0
6 . 0
6 . 5
6 . 5
7 . 0
7 . 5
8 . 5
9 . 0
1 0 . 0
1 1 . 0
1 3 . 0
1 5 . 0
1 5 . 5
1 6 . 5
1 8 . 5
2 0 . 0
2 2 . 0
2 4 . 5
2 8 . 5
2 9 . 0
3 1 . 0
3 5 . 0
3 8 . 0
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
5 . 0
5 . 0
6 . 0
6 . 0
6 . 5
7 . 0
7 . 5
8 . 5
9 . 5
1 1 . 0
1 2 . 0
1 3 . 0
1 4 . 0
1 5 . 0
1 8 . 5
2 0 . 0
2 1 . 0
2 3 . 0
2 6 . 0
2 8 . 0
3 1 . 0
3 5 . 0
3 7 . 0
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
4 . 5
5 . 0
6 . 0
7 . 0
8 . 0
9 . 0
1 0 . 0
1 1 . 0
1 2 . 0
1 4 . 0
1 5 . 5
1 6 . 0
1 7 . 5
1 9 . 5
2 3 . 0
2 6 . 5
2 8 . 0
3 0 . 0
3 3 . 5
3 7 . 0
4 . 5
4 . 5
4 . 5
4 . 5
5 . 5
5 . 5
5 . 0
6 . 0
6 . 5
8 . 0
9 . 5
1 1 . 0
1 2 . 5
1 4 . 0
1 5 . 5
1 7 . 0
2 0 . 0
2 3 . 0
2 6 . 0
2 9 . 0
3 2 . 0
0 . 8
1 . 0
1 . 2
1 . 4
1 . 8
2 . 2
2 . 8
3 . 5
4 . 2
6 . 3
7 . 9
1 1 . 4
1 3 . 2
1 6 . 4
1 8 . 4
2 2 . 0
2 8 . 2
3 7 . 3
4 5 . 1
5 6 . 3
6 8 . 8
9 7 . 6
1 3 1 . 4
1 4 5 . 4
1 6 5 . 1
2 0 8 . 2
2 5 0 . 0
3 0 2 . 5
3 8 2 . 8
4 9 8 . 9
5 4 3 . 6
6 1 9 . 9
7 8 7 . 4
9 4 9 . 7
0 . 8
1 . 0
1 . 2
1 . 4
1 . 8
2 . 2
2 . 8
3 . 5
4 . 7
6 . 3
9 . 3
1 1 . 4
1 4 . 3
1 7 . 6
2 1 . 2
2 6 . 8
3 5 . 8
4 8 . 4
6 0 . 3
7 3 . 5
8 7 . 9
1 2 0 . 4
1 6 2 . 4
1 8 8 . 1
2 1 0 . 7
2 5 9 . 5
3 2 6 . 0
3 8 6 . 1
4 8 5 . 6
6 1 4 . 1
6 9 5 . 4
0 . 8
1 . 0
1 . 2
1 . 4
1 . 8
2 . 2
2 . 8
3 . 6
4 . 7
7 . 7
1 1 . 2
1 5 . 4
2 0 . 2
2 5 . 6
3 1 . 7
3 8 . 4
5 3 . 7
6 9 . 3
8 1 . 6
1 0 0 . 4
1 2 4 . 3
1 7 5 . 9
2 3 6 . 3
2 6 7 . 5
3 0 5 . 7
3 8 4 . 0
4 7 1 . 2
0 . 8
1 . 0
1 . 2
1 . 4
1 . 8
2 . 2
3 . 2
4 . 8
6 . 2
1 0 . 4
1 5 . 4
2 1 . 4
2 8 . 3
3 6 . 2
4 5 . 1
5 4 . 9
7 7 . 5
1 0 4 . 0
1 3 4 . 3
1 6 8 . 4
2 0 6 . 5
1
1
1
3
3
6
6
6
6
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
DN
0.6MPa
t(mm) w t(mm) w t(mm) w t(mm)
L(m)
w
1.0MPa 1.6MPa 2.5MPa
1. Internal liner (thickness 1.0 – 2.0 mm)
In tables bellow thickness include 1.5mm of liner and minimum pipe Stiffness 1250 Pa
2. Mechanical resistant layer in glass filament winding (based on internal pressure)
3. Top coat (0.2 – 0.3mm) . In tables bellow thickness include 0.2mm of top coat
All values presented in tables above are only for information and they are vary from the project to project.
ZhongfuLianzhong do not produce their pipe on stock, products are designed for each specific project separately.
6.7 Thickness and Weight of Standard Pipes based on Internal Pressure
6.1 Mechanical Performance
Parameter Table
6.2 Physical properties
Hoop tensile strength
Axial tensile strength
Axial flexural strength
Interlaminar shear strength
Hoop tensile modulus
Axial tensile modulus
Hoop bending modulus
Axial bending modulus
Hoop bending strength
Hoop compressive strength
Axial compressive strength
Hoop compressive modulus
250MPa
120MPa
100MPa
13MPa
22GPa
12.5GPa
22GPa
12.5GPa
220MPa
160MPa
100MPa
20GPa
Axial compressive modulus
Vertical shear strength
Elongation at break
Maxmum allowable short time composite strain
Maxmum allowable composite strain
11GPa
60MPa
0.8%
0.3%
0.17%
Mechanical Property Parameters of GRP
1. Pipes
Tensile strength
Bending Strength
Compressive strength
Tensile modulus
Bending modulus
160MPa
160MPa
140MPa
13GPa
13GPa
2. Fittings
Property
Density
Glass content(by weight)
Specific Gravity
Coefficient of Linear Thermal Expansion
Thermal Conductivity
Electical Resistivity(standard pipe)
Electical Resistivity(conductive pipe)
Pipes
1.85-2.1
65-75
1.850
1.8*10-5
-2.2*10-5
0.26
109
<105
Fittings
1.55-1.75
35-50
1.650
1.8*10-5
-2.2*10-5
0.26
109
<105
g/cm3
%
kg/m3
1/℃
W/m*K
Ohm/m
Ohm/m
6.3 Flow Velocity
Maximum recommended flow velocity is 3.0m/sec. Velocities of up to 4.0m/sec can be used if the water is clean and contains
no abrasive material.
6.4 UV Resistance
There is no evidence to suggest that ultraviolet degradation is a factor that affects the long-term service life of Lianzhong
pipes. The outermost surface will be affected with discoloring of the surface observed. If so desired, the installing contractor
may paint the exterior surface of Lianzhong pipe with a two-part urethane paint compatible with GRP. However, this will then
become an item requiring future maintenance.
6.5 Flow Coefficients
Based on tests carried out over a 3-year period on Lianzhong pipe, the Colebrook-White coefficient may be taken as 0.029
mm. This corresponds to a Hazen-Williams flow coefficient of approximately C=150.
Contact your pipe supplier for more detailed information if needed.
6.6 Abrasion Resistance
Abrasion resistance can be related to the effects that sand or other similar material may have on the interior surface of the
pipe. While there is no widely standardized testing procedure or ranking method, GRP pipe has been evaluated by using the
Darmstadt Rocker method. Results will be highly influenced by the type of abrasive material used in the test. Using gravel
which was obtained from the same source as that used at Darmstadt University, the average abrasion loss of GRP pipe is
0.34 mm at 100.000 cycles.
Lmax for ND<50 is 1mm and for 50 ≤ND<200 is 5900mm and for ND≥200 is 11700mm.
*The above table refer to laminated obtained by the filament
winding process having a winding angle of 55 degrees.
CNBM
Lianzhong
R
PAGE
PAGE
87
7. 7.Pipe joints
7.1 Double “O” ring Bell & Spigot joint
7.2 Double “O” ring
Bell & spigot with
locking key
7.3 Butt & Strap joint
(Hand Lay-up Joint)
7.4 Taper/socket joint
Joint Angular Deflection
The joint is extensively tested and qualified in accordance with ASTM D4161
and ISO DIS8639.
Maximum angular deflection (turn) at each joint, considering both combined
vertical and horizontal, measured as the change in adjacent pipe center lines,
must not exceed the amounts given in Table below.
This joint is made from glass fiber
reinforcements and polyester
resin. It is typically used in
situations where the pipe joint is
required to transmit axial forces
from internal pressure, or as a
repair method. The length and
thickness of the lay-up depends
on diameter and pressure. This
type of joint requires clean,
controlled conditions and skilled,
trained personnel. Special
instructions can be provided
when this type of joint is required.
The selection of Lianzhong pipe is based on stiffness and pressure class requirements.
7.5 Flange joint
25
40
50
65
80
100
125
150
200
250
300
350
400
450
500
550
600
700
750
800
900
1000
1100
1200
1300
1400
1500
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.2
4.6
5.0
5.4
5.8
6.6
7.0
7.4
8.2
9.0
9.8
10.6
11.4
12.2
13.0
0.7
1.0
1.3
1.6
2.0
2.5
3.0
3.6
4.8
6.0
7.2
8.4
10.0
12.3
14.9
17.7
20.7
27.5
31.3
35.3
44.0
53.6
64.2
75.7
88.2
101.7
116.1
25
40
50
65
80
100
125
150
200
250
300
350
400
450
500
550
600
700
750
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
2000
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.5
5.0
5.5
6.0
6.5
7.0
8.1
8.6
9.1
10.1
11.1
12.1
13.1
14.1
15.1
16.1
17.1
18.1
19.1
21.1
0.7
1.0
1.3
1.6
2.0
2.5
3.0
3.6
4.8
6.0
7.2
9.5
12.0
14.9
18.0
21.5
25.3
33.7
38.3
43.3
54.1
66.1
79.3
93.8
109.4
126.2
144.3
163.5
183.9
205.6
252.4
25
40
50
65
80
100
125
150
200
250
300
350
400
450
500
550
600
700
750
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
2000
2250
2300
2500
3000
3400
4000
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.2
4.8
5.4
6.1
6.7
7.3
8.0
8.6
9.9
10.5
11.2
12.4
13.7
15.0
16.2
17.5
18.8
20.0
21.3
22.6
23.8
26.4
29.6
30.2
32.7
39.1
44.2
51.8
0.7
1.0
1.3
1.6
2.0
2.5
3.0
3.6
4.8
6.3
8.7
11.4
14.6
18.1
22.0
26.3
31.0
41.4
47.2
53.4
66.9
82.0
98.5
116.6
136.2
157.3
179.9
204.0
229.7
256.9
315.8
397.9
415.5
489.6
701.4
898.1
1238.8
25
40
50
65
80
100
125
150
200
250
300
350
400
450
500
550
600
700
750
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
2000
2250
2300
2500
3000
3400
4000
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.2
5.0
5.8
6.6
7.4
8.2
9.0
9.8
10.6
12.2
13.0
13.8
15.4
17.0
18.6
20.2
21.8
23.4
25.0
26.6
28.2
29.8
33.0
37.0
37.8
41.0
49.0
55.4
65.0
0.7
1.0
1.3
1.6
2.0
2.5
3.0
3.6
5.1
7.5
10.5
13.9
17.8
22.2
27.0
32.4
38.2
51.3
58.6
66.3
83.2
102.1
122.8
145.5
170.1
196.6
225.0
255.4
287.7
321.9
396.0
499.5
521.6
614.9
881.9
1129.9
1559.6
1. Internal liner (thickness 1.0 – 2.0mm)
In tables bellow thickness include 1.0mm of liner
2. Mechanical resistant layer in glass filament winding (based on stiffness class)
3. Top coat (0.2 – 0.3mm)
In tables bellow thickness include 0.2mm of top coat
All values presented in tables above are only for information and they are vary from the project to project.
ZhongfuLianzhong do not produce their pipe on stock, products are designed for each specific project separately.
6.8 Thickness and Weight of Standard Pipes based on Stiffness
SN1250 [Pa] SN 2500 [Pa] SN 5000 [Pa] SN 10000 [Pa]
ND
[mm]
t
[mm]
W
[kg/m]
ND
[mm]
t
[mm]
W
[kg/m]
ND
[mm]
t
[mm]
W
[kg/m]
ND
[mm]
t
[mm]
W
[kg/m]
Lmax for ND<50 is 1mm and for 50 ≤ND<200 is 5900mm and for ND≥200 is 11700mm.
Nominal sizes(ND mm) Angular deflection(。degrees)
<500
≥500 to <900
≥900 to <1800
>1800
3。
5。
1。
0.5。
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12. Blind Flange
GB9112-2000
0.6MPa 1.0MPa 1.6MPa
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
1200
1400
1500
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3600
12
14
14
16
16
16
16
18
18
20
20
25
30
35
40
45
50
50
60
70
80
90
100
120
140
145
150
170
190
205
220
240
260
275
290
310
330
80
90
100
120
130
140
160
190
210
240
265
320
375
440
490
540
595
645
755
860
975
1075
1175
1405
1630
1730
1830
2045
2265
2475
2685
2905
3115
3315
3525
3735
3970
55
65
75
90
100
110
130
150
170
200
225
280
335
395
445
495
550
600
705
810
920
1020
1120
1340
1560
1660
1760
1970
2180
2390
2600
2810
3020
3220
3430
3640
3860
14
14
14
18
18
18
20
20
25
25
30
35
40
45
50
55
65
70
80
90
110
120
130
150
180
190
200
220
245
270
290
310
335
360
95
105
115
140
150
165
185
200
220
250
285
340
395
445
505
565
615
670
780
895
1015
1115
1230
1455
1675
1785
1915
2115
2325
2550
2760
2960
3180
3405
65
75
85
100
110
125
145
160
180
210
240
295
350
400
460
515
565
620
725
840
950
1050
1160
1380
1590
1700
1820
2020
2230
2440
2650
2850
3070
3290
14
16
16
18
18
20
20
25
25
30
35
40
50
60
65
75
80
90
110
120
130
150
160
190
220
240
250
280
310
340
365
390
95
105
115
140
150
165
185
200
220
250
285
340
405
460
520
580
640
715
840
910
1025
1125
1255
1485
1685
1820
1930
2130
2345
2555
2765
2965
65
75
85
100
110
125
145
160
180
210
240
295
355
410
470
525
585
650
770
840
950
1050
1170
1390
1590
1710
1820
2020
2230
2440
2650
2850
Specification
DN(mm) t(mm) D(mm) C t(mm) D(mm) C中心 t(mm) D(mm) C中心
C
t
9.1 Unloading and Handling Pipes
Unloading the pipe is the responsibility of the customer. Be sure
to maintain control of the pipe during unloading. Guide ropes
attached to pipes or packages will enable easy manual control
when lifting and handling. Do not drop, impact, or bump the pipe,
particularly at pipe ends.
If at any time during handling or installation of the pipe, any
damage such as a gouge, crack or facture occurs, the pipe
should be repaired before the section is installed.
9.2 Transporting Pipes
Strap pipe to the vehicle over the support points using pliable straps or rope. Never use steel cables or chains
without adequate padding to protect the pipe from abrasion. Bulges, flat areas or other abrupt changes of
curvature are not permitted. Transport of pipes outside of these limitations may result in damage to the pipes.
9.3 Site Pipe Storage
It is generally advantageous to store pipe on flat timber to facilitate placement and removal of lifting slings
around the pipe.
When storing pipe directly on the ground, be sure that the area is relatively flat and free of rocks and other
potentially damaging debris. Placing the pipe on mounds of backfill material has been found to be an effective
way of site storing the pipe. All pipes should be chocked to prevent rolling in high winds.
Transportation
of FRP pipes
Emplacing
of FRP pipes
Lifting pipe at one support point Lifting unitized package Lifting nested pipes
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9.Unloading，Handling，
Transportation and Storage
2019
13. 10. Installation
10.1 Above ground pipe
Lianzhong pipes will meet the users’ different requirements: on the ground, underground and underwater installation, as long
as using the reasonable installation method.
The support of GRP piping system is completely different from that of
any other pipes and requires considerable attention.
The modulus of elasticity of GRP pipe is low, in order to minimize the
deflection, the proper spacing between racks must be selected. In
order to minimize localized stress, the wide-band support should be
used. In order to avoid the localized stress near the joint, the
supporting point should be near the connection, all valves should be
supported independently. Make sure the pipe standing support is firm
to ensure the position of pipe standing from moving and to minimize
the vibration of the vibrant part of pipe standing. The function of pipe
standing or lift-standing should not be clip but conductivity to the
pipes. For long pipeline, proper disposition of support spots is crucial
to watch out for twisting moment in FRP pipe caused by the
deformation of pipes which might result the break of pipes. Generally,
for FRP pipeline, expansion joints may be unnecessary.
Ditching and excavation, pipe bedding’s compaction and backfill of the backfill material should meet the technique requirement
of the installation of FRP pipe.
To minimize the work volume of pipe connections on the spot and to lay out pipes rapidly, all the difficult connections should be
put on by the factory.
When the installation is finished, pipeline should be tested with water pressure in accordance with the guide of specifications for
installation of underground FRP filament winding pipe issued by Zhongfu Lianzhong.
10.2 Underground pipe
10.3 Under water pipe
Details please refer to the《GRP pipe installation instructions》issued by Zhongfu Lianzhong.
Crane
Sea
Bottom
① Zhongfu Lianzhong manufactured and installed
seawater circulating cooling pipe, DN2400 for Indonesia
Labu Bay Power Station in 2006.
11.1 Power Plant
11. Successful Case
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14. ③Zhongfu Lianzhong supplied and installed
seawater circulating cooling pipes, DN2800 for
Qinshan Nuclear power station in 1997.
④Zhongfu Lianzhong supplied DN2400
seawater circulating cooling pipes for
Indonesia Labu Bay Power Station in 2006.
②Zhongfu Lianzhong manufactured seawater circulating cooling pipe, DN1800 for Pakistan
Feuerbach combined cycle power station in 1991.
⑥ Zhongfu Lianzhong supplied DN2400 seawater circulating cooling pipes and installed for Indonesia PLTU1
INDRAMAYU 3*330MW coal-fired power station in 2006.
⑤ Zhongfu Lianzhong supplied DN3000 GRP pipe for
CSPC Nanhai project.
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15. ⑦ Zhongfu Lianzhong supplied and installed GRP pipes for Sudan Khartoum North Power Station
(2×100MW) in 2007.
11.2 LNG receiving station
① Zhongfu Lianzhong supplied and installed seawater pipes, DN1600 for
Fujian LNG project in 2007
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16. ② Zhongfu Lianzhong supplied and installed
seawater pipe, DN1500 for Guangdong Dapeng
LNG project, in 2008
③ Nantong LNG Project: In 2009,Zhongfu Lianzhong
supplied GRV pipe of DN1800,PN 1.0MPA.and also
supplied installation service in 2010. The most important
thing is that in this project Zhongfu Lianzhong make the
stress analysis with CaesarⅡ,make the water hammer
analysis with Impulse,which is from American AFT
company. Until finishing the hydraulic test, we turn over
this project to client. The end user of this project is China
National Petroleum Corporation(CNPC).
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17. Zhongfu Lianzhong supplied and installed seawater pipes DN100-1800 for Algeria TLEMCEN
desalination plant project in 2009.
④ Dalian LNG Project:In 2009,Zhongfu Lianzhong supplied GRV pipe of DN1800,PN 1.0MPA.and also
supplied installation service in 2010.The end user of this project is China National Petroleum
Corporation(CNPC).
11.3 Sea water desalination plant
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18. Project：Jebel alipower and desalination station“M”
Location：Dubai-UAE
Contractor：FISIA
Pipe size：25mm to 2100mm
Pressure class：PN10,PN16
Installation Year：2009
Project：Tianjin Beijiang power plant
Location：Tianjin,China
Contractor：SEPCOⅠElectric power Construction Corporation
Pipe size：600mm to 1300mm
Pressure class：PN10
Installation Year：2009
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