• GRP FRP Pipes Sea Water Pipe Series DN 900 System 1
  • GRP FRP Pipes Sea Water Pipe Series DN 900 System 2
  • GRP FRP Pipes Sea Water Pipe Series DN 900 System 3
GRP FRP Pipes Sea Water Pipe Series DN 900

GRP FRP Pipes Sea Water Pipe Series DN 900

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Loading Port:
Lianyungang
Payment Terms:
TT OR LC
Min Order Qty:
100 pc
Supply Capability:
10000 pc/month

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Features & Benefits of GRP FRP pipe sea water pipe series

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

Control Testing of GRP pipe sea water pipe series

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

The manufactured pipe’s hoop and axial load capacities are verified on a routine basis. In addition, pipe construction and composition are confirmed.

Finished Pipe

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

Thickness and Weight of Standard Pipes based on Internal Pressure of GRP pipe sea water pipe series

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


GRP FRP Pipes Sea Water Pipe Series DN 900

UnloadingHandlingTransportation and Storage of GRP pipe sea water pipe series

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.

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.

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.



GRP FRP Pipes Sea Water Pipe Series DN 900

GRP FRP Pipes Sea Water Pipe Series DN 900

FAQ of GRP pipe sea water pipe series

Q1: What’s the performance standards?

Lianzhong pipe is designed to meet all of these ASTM , AWWA, BS, DIN standards.

Q2: What’s the qualification testing for the products?

 Lianzhong pipe has been rigorously tested to verify conformance to the ASTM D3262, ASTM D3517, AWWA C950 and DIN 16868 requirements

Q3: How long can I receive my goods?

A: Usually, we will deliver products within 20 days after the contract is signed. Delivery time is negotiable when necessary.




Q:What is the structure and function of glass fiber reinforced plastic lining?
Repeat the process of brushing and sticking, forming three cloth, four glue or four cloth, five glue process, according to the corrosive strength of the medium, the thickness of the glass fiber reinforced plastic lining layer is different, and the price is different.FRP lining is slightly cheaper than rubber lining, but the price is only about 30% of the latter
Q:Where are the advantages of FRP pipes? Long life?
Heat resistant and frost resistantAt the temperature of -30 DEG C, it still has good toughness and high strength. It can be used for a long time in the range of -50, -80 degrees Celsius, and the resin with special formula can work at the temperature above 110 DEG C.
Q:Why more and more people choose FRP pipe?
And the price ratio of FRP pipe is not much cheaper, and although the hardness of concrete pipe although FRP pipe to be hard, but the toughness and tensile strength is poor, the pressure is not good, and the cost is expensive, because more and more people use glass steel, and the price is expensive, with longer life.
Q:How can I replace the valve on the water supply pipe?
The length of the steel flange three way pipe fittings can be determined according to the size of the expenditure caliber, and the specific processing can refer to the atlas of the water supply and drainage standards, and the steel pipe fittings processing standard drawing is made;
Q:The difference between GRP cable duct and PVC cable pipe
The biggest difference is that the material is different, and the other areas of use are different
Q:How is FRP ventilation pipe made?
Solidification strippingThe coated FRP pipe can be released after a period of constant pressure to a certain strength. When the mold is released, the pre - prepared ejection support points shall be removed to separate the mold from the molded air pipe and then to exit the mold. Finally, remove the glass paper on the inside and outside surface. Air duct after stripping. Excess parts or burrs can be polished by hand cutting machine or sand grinder.
Q:The difference between FRP process tubes and GRP tubes
Kashi Eisa's goal is to increase stiffness (large pipe defects) and reduce costs, and process tubes (mostly small tubes), these two aspects are no problems;
Q:Is it useful to make gas pipelines with glass steel pipes? Or the idea that the technology is mature?
I don't think it's enough, because the strength of FRP is not enough, it can easily be brittle and easily perforated in the field for a long time!
Q:What are the advantages of glass fiber reinforced plastic sand pipe than HDPE pipe?
Advantages of FRP pipes:1, insulation, acid, alkali and salt corrosion, antistatic, rust, aging is not easy, the service life of up to 50 years.2, non-magnetic, non electrical corrosion, waterproof performance, and can be used in humid environment or water for a long time without deterioration.3, high strength, is the same degree of the original PE pipe is more than 6 times, light weight, smooth wall, perforated cable when the friction coefficient is small, no cable operation.4, heat resistance, antifreeze, fire protection, fire retardant type. It can be used for a long time at -35 ~ 139 degrees celsius.5. The bending modulus is good, the impact resistance is strong, and it solves the defects of metal tube easy to decay and no distortion and elasticity.6, the cable across the bridge and across the river, the use of glass fiber reinforced plastic catheter is more economical and appropriate.7, construction and installation is very simple, no need to tie steel, pouring concrete.
Q:Why FRP pipes for outdoor waste gas treatment equipment are selected?
Relative to the iron and steel materials such as glass, steel price is the highest, and can reach more than 25 years of life in the outdoors; other materials, such as: PP material, although very similar characteristics of steel and glass, but there is a fatal flaw: the outside is very easy to be corroded and aging, especially direct sunlight high and low temperature conditions, the service life is often less than two years.

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