High Pressure GRE Pipe Fittings with Female Thread Connection

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Product Description:


API Hot Spring Pipe 
1.Standard:API,ASTM,ISO,GB, etc 
2.Anti-corrosion & high strength 
3.Long service time 
4.Low costs

GRE (Glass Reinforced Epoxy)

Some times, GRE and FRP/GRP (Fiber/Glass Reinforced Plastic) are regarded as the same

material with different names, but in most cases, since GRE choice epoxy resin as material, 

it has stronger performances.


It is the thermosetting plastic products combining the reinforced material of fiberglass roving with the base material of epoxy resin
It is made by mechanical filament wound process controlled by computer. 
So it is a kind of composite material. 


The GRE pipe offers a unique combination of chemical resistance, size stability, high strength, and thermal/electric non-conductivity.

So the GRE pipe can be used in the fields of chemical anti-corrosion, construction, electric insulation, power development etc.



1. Anti corrosion

2. High strength, more safety

3. More than 30 years service life

4. Light weight, easy installation and keeping cost

5. Flexible design and shorter reform term

6. No medium pollution

Technical Table

High Pressure GRE Pipe Fittings with Female Thread Connection

High Pressure GRE Pipe Fittings with Female Thread Connection


1.Oil, petroleum, natural gas pipeline

2.Irrigation, hot spring, city water pipeline

3.Brine delivery pipeline

4.Other liquid transport pipeline



1.High quality

We're state owned manufacturer with registered capital RMB 200 million specialized in this area.Standard:API-15HR,API-15LR,ISO9001,GB,etc.

2.Competitive price

Our raw material is from PPG SINOMA JINJING FIBERGLASS CO.,LTD, a JV enterprise

invested by our company and PPG industries to ensure high quality and low costs.

3.Great production capacity and short delivery time.We have 16 production lines for GRE pipe, with annual production capacity of 16000MT. 

Pitcures of our factory:

High Pressure GRE Pipe Fittings with Female Thread Connection

High Pressure GRE Pipe Fittings with Female Thread Connection

High Pressure GRE Pipe Fittings with Female Thread Connection

FAQ of GRE pipes:

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 to repair and repair the broken hole of GRE glass fiber reinforced plastic pipe?
Place an iron or glass piece of steel on a broken hole like a bicycle tire, then use three oil, two cloth, or five oil three cloth;
Q:What are the differences between inorganic FRP pipes and plexiglass pipes, what are the advantages and disadvantages?
The inorganic glass fibre reinforced plastic wind pipe is made of unsaturated resin, and the organic is made of vinyl resin, which is strong and bears strong corrosion resistance
Q:What kind of epoxy resin and formula do you need for making fiberglass pipe?
By explaining the materials, tools, moulds, renovation and repair, process, structure and various products, the latest development direction, process technology and application of FRP products are described.
Q:What kind of diamond saw blade for cut glass steel pipe?
It is better to use ceramic stem slice, thin, toothless and wear less.
Q:What are the disadvantages of glass fiber reinforced sand pipe?
Glass reinforced plastic sand pipe is mainly to increase the rigidity of the pipe, the relative wall thickness of pure glass steel tube, low compressive strength, shock resistance decreased.
Q:Designed to support FRP pipes, is it m or mm?
The glass steel pipe wall smooth, do not scratch the cable, socket type interface, convenient installation and connection to thermal expansion and contraction, the proportion of small, light weight and reduce installation labor, reduce the cost of installation, FRP cable protection pipe used for electric power, communication cable, in various environmental protection pipe laying cables, especially through the traffic crossing to the cable across the river the use of the bridge, under special circumstances, can fully reflect its simple construction, high strength, excellent performance, widely used in electric power, communications, transportation, civil aviation, airport infrastructure and other Domain company always adhere to the "customer first, integrity management, intentions services for business philosophy, is willing to work with friends from all walks of life to strengthen cooperation, mutual cooperation, common progress and win-win
Q:What are FRP pipes made of?
It has excellent corrosion resistanceDo not use cathodic protection and other anti-corrosion measures to produce two contamination of water and other media. Long service life of products.
Q:Raw material and mix ratio of inorganic glass fibre reinforced plastic wind pipe
In order to improve the quality of glass.Advanced technology may be used.The ratio seems to be 1 to 0.001. Pretty much within this range.
Q:Winding method of glass fibre reinforced plastic pipeline anticorrosive glass fiber cloth
When the length and width of glass fiber mesh are not enough, the method of lap joint must be adopted to improve the tangential bearing capacity of the joint, so as to effectively overcome the radial tensile stress, bending force and bending shear stress. The lap length of the glass fiber cloth at the joint is generally 50 to 100mm, and the joint of each glass fiber cloth should be at a certain distance from the adjacent joint. The longitudinal and transverse joints between adjacent layers shall be greater than 300mm, and the distance from the same seam shall not be less than 500mm.5) paste made of circular duct, glass cloth along the radial 45 degree angle to the direction of cut cloth; conical paste products, according to the fan-shaped cloth.
Q:What is the stiffness of FRP pipe?
The ring stiffness is the comprehensive parameter of the tube's resistance to external pressure. Obviously, the choice of ring stiffness is one of the keys to ensure the safe operation of plastic underground drainage pipe under the external compressive load. If the ring stiffness of the tube is too small, the tube may undergo excessive deformation or buckling failure. On the other hand, if the ring stiffness is chosen too high, the excessive cross section moment of inertia must be used, which will result in too much material and too high cost.

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