• GRP FRP Pipes Sea Water Pipe Series DN 450 - Composite Pipe Price System 1
  • GRP FRP Pipes Sea Water Pipe Series DN 450 - Composite Pipe Price System 2
  • GRP FRP Pipes Sea Water Pipe Series DN 450 - Composite Pipe Price System 3
GRP FRP Pipes Sea Water Pipe Series DN 450 - Composite Pipe Price

GRP FRP Pipes Sea Water Pipe Series DN 450 - Composite Pipe Price

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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 450

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 450

GRP FRP Pipes Sea Water Pipe Series DN 450

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: How can I replace the valve on the water supply pipe?
Can be arranged according to the construction plan, the first excavation processing and then steel flange three pipe production, water supply operation again when all the preparatory work is completed, and according to the steel flange three pipe length decided to cut the glass steel pipes length;
Q: What is the stiffness of FRP pipe?
Stiffness, also called ring stiffness, is a numerical indicator of actual resistance to external pressure. Ring stiffness S definition: S =EI /D 3 (where E is the elastic modulus of the material, I is the moment of inertia, D is the average diameter of the pipe ring), and the ring stiffness is KN/m2.
Q: Mending method for glass fiber reinforced plastic pipe
The method for mending and mending the glass fiber reinforced plastic pipe is hand paste, and the repairing steps are as follows:The stones must be taken away so that the pipes are restored to their original shape.Into the pipe, grinding first and lining the lining. If you can't get into the pipe, polish it from the outside, polish it to the lining, and then make a new lining.Reinforce the structure with a cloth.
Q: Glass tube has different diameters with different prices. Who can elaborate?
The standard for FRP pipe execution is GB21238-2007
Q: How to repair and repair the broken hole of GRE glass fiber reinforced plastic pipe?
The service will be restored in 24 hours, and I hope this will help you! Can private letter to contact is not clear!
Q: What is the standard of flange coefficient for FRP ducts?
Can be explained in this way, the flange width is generally 50, on both sides that is 100, flange thickness is calculated as two times the thickness of the pipe, or 200. The duct length is 2000 knots, and 200 is 2000 of the 10%
Q: What kind of material are the flanges and valves on the GRP pipe?
The flange on the GRP pipe is fiberglass, and the flanges and pipes are one. The valve is welded with carbon steel
Q: What kind of diamond saw blade for cut glass steel pipe?
Diamond saw blade is a kind of cutting tool. It is widely used in the processing of concrete, refractory, stone, ceramics and other hard and brittle materials. The diamond saw blade is mainly composed of two parts: matrix and cutter head. The matrix is the main supporting part of the bond of the cutter head, the cutter head is the cutting part during use, the cutter head can be in use and constantly consumed, and the matrix is not, the cutter head is able to cut the role because it contains diamond, diamond as the hard material of it friction cutting object is processed in the knife head. The diamond particles are wrapped in metal inside the cutter head.
Q: What is the thickness of all types of FRP pipes?
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: What is the compressive strength of all kinds of FRP materials?
Good corrosion resistance, no impact on water quality: FRP pipe can resist acid, alkali, salt, sea water, untreated sewage, corrosive soil or groundwater and many chemical fluids erosion. The service life of the pipe is longer than that of the traditional pipe, and the designed service life is more than 50 years. Of fiberglassreinforcedplastic pipe, is more used in municipal, city pipeline network, due to its non-toxic, tasteless, no rust, no two pollution on water quality, no corrosion, greatly prolong the service life, convenient installation and other advantages, therefore, by the water supply and drainage industry welcome.

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