GRP FRP Pipes Sea Water Pipe Series DN 250

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Lianyungang
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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 250

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 250

GRP FRP Pipes Sea Water Pipe Series DN 250

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.




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Q:How much is a glass fiber reinforced plastic sand pipe socket pipe fitting?
Gfrpmp light material, with the diameter of the pipe with pressure gfrpmp weight is 1/15 ~ 1/10 concrete pipe, resulting in transportation, lifting and lightweight, easy to install, laying pipes in drainage construction rectification, ensure the reliability of the pipeline axis and elevation positioning accuracy and construction. The drainage pipe interface with socket type "O" - type double seal ring connection, flexible joint tensile performance is better than that of concrete, so the soft mud foundation adaptability. The cost of pipe foundation treatment is greatly reduced compared with that of concrete pipe, so it is not necessary to install steel mould, lashing steel bar and pouring concrete as the concrete pipe, thus reducing the construction labor intensity and shortening the construction period [2].
Q:Why FRP pipes for outdoor waste gas treatment equipment are selected?
Therefore, the outdoor waste gas treatment equipment is usually made of glass fiber reinforced plastic.
Q:What is the structure and function of glass fiber reinforced plastic lining?
The structure is made up of colloid + glass cloth. The construction process is like this:1, carbon steel inner wall grinding acute angle, rust removal2, brushing glue3, cloth affixed4, brushing glue5, cloth affixed
Q:What kind of diamond saw blade for cut glass steel pipe?
Glass fiber reinforced plastic pipe is also called glass fiber winding sand pipe (RPM pipe). Mainly to the glass fiber and its products as reinforcing material, polymer composition of unsaturated polyester resin, epoxy resin as basic material, quartz sand and calcium carbonate and other inorganic non-metallic particles as filler materials as the main raw material. The standard effective length of the tube is 6m and 12M, and the production methods include fixed length winding process, centrifugal casting process and continuous winding process of three kinds. Classification can be carried out according to the product process method, pressure grade PN and stiffness grade SN.
Q:FRP acceptance standard
Check radial deflection values. In accordance with the requirements of the specification, the FRP pipe installation shall be completed within 24h, the initial radial deflection of the pipe shall be tested, and the pipe shall not be raised, flattened or otherwise mutated.
Q:What are the advantages of FRP pipes?
The relative density is between 1.5~2.0 and only 1/4~1/5 of carbon steel, but the tensile strength is close to or even higher than that of carbon steel, while the specific strength can be compared with that of advanced alloy steel.
Q:Mending method for glass fiber reinforced plastic pipe
Tip: if glass fibre reinforced plastic pipe is broken, it is suggested to replace it with new pipe.
Q:What are FRP pipes used for making? What raw materials?
So people began to think, if you can make a kind of glass has both hardness, high temperature resistance, corrosion resistance of the nature, but also with steel as hard, not broken characteristics, then this material will be of great use. People have made such a composite material after research and experiment. It is a glass pipe and steel, can stand shoulder to shoulder.
Q:What's the process of continuous winding glass fiber reinforced plastic sand pipe?
On line inspection: the pipe being cut and grinded is delivered to the water pressure test machine through the conveyor. After the test is qualified, the pipe joint which has been tested by hydraulic pressure is sent to the pipe joint installation machine for joint installation.
Q:How to improve the compressive strength of waste glass fiber reinforced plastic profiles (such as square tubes) should be started with resin, curing agent, glass fiber or other aspects!
Use a high strength resin type;

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