FRP Sand-filling Pipe
Excellent chemical resistance for longer service life
Good mechanical performance
Superior hydraulic characteristics
Flexible design with wide application range
Non-toxic and pollution-free
Fewer joints with excellent sealing performance
Lightweight for easy transportation and installation
Product Description
FRP sand-filling pipe is the result of years of successful manufacturing experience and scientific research and development of GRAD Group. It is a representative of reliability, safety and economy, mainly used in buried pipes and long-distance pipelines. It has the characteristics of light weight, high strength, corrosion resistance, long service life, low operation and maintenance costs, and can save a lot of funds for construction projects.
Specifications of FRP sand-filling pipes:
1. Diameter: 300mm~4,000mm.
2. Length: 6m/12m per pipe.
3. Pressure class: 0.1MPa, o.6MPa , 1.0MPa , 1.6MPa
4. Stiffness: 2,500 Pa, 5,000Pa, 10,000Pa.
Main Forming Process
Under computer control, the inner lining is manufactured on the core mold in accordance with the same process as that for fiber-wound fiberglass reinforced plastic pipes. After gelating, the structural layer is wound in the designed line shape and thickness, and the mortar mixed with quartz sand and resin is wound in the structural layer. Finally, the outer protective layer is wound.
The effect should be demonstrated.
Sand-filling Pipe Applications
1. Sanitary sewage lines.
2. Industrial wastes lines.
3. Potable water lines.
4. Corrosive fluids lines.
5. Sea water lines.
| Comparison item | Nodular cast iron | Prestressed concrete pipe | Glass reinforced plastic sand pipe |
| density (g/cm3) | 7.2 | 5.44 | 1.9-2.2 |
| Tensile strength(Mpa) | ≥420 | 30 | 160-300 |
| Yield strength(Mpa) | ≥300 | 120-180 | |
| Rate of elongation | ≥10% | 1% | 0.8%-1.2% |
| Single tube length | ≥8 | ≥5 | ≥12 |
| Corrosion resistance | good | good | optimal |
| Service life | 20-25 | 5-15 | 50 |
About us
GRAD sales network covers over 100 countries and regions like America, Australia Indonesia, Malaysia, UAE, Thailand, Nigeria etc and has established branch company in USA, and set up offices in Cambodia and Thailand to make overall layout of global market.
Manufacturer:Shandong GRAD Group Co.,Ltd.
Established Time:1993
Covers an area of:700,000sqm
Main products:Central air conditioners,ventilators ,GRP Composite material products,Environment protection products
Employment : 2500+ employees
Registered capital: ¥ 100 million
Equipment price : ¥370 million
Total capital :¥ 925 million
Annual output value: ¥over 3 billion
Design team:300+
Overseas offices:
1. Thailand and Cambodia offices
2. USA branch company
FAQ
Q1: Where is your loading port?
A: Our main loading ports are Qingdao, Shanghai, and Tianjin in China. Other ports can be arranged according to your request.
Q2: What are your company’s main products?
A: Our company specializes in central air-conditioning systems, ventilation equipment, and GRP (Glass Reinforced Plastic) composite material products.
Q3: What is the minimum order quantity (MOQ)?
A: The MOQ is 1 piece, or it may vary depending on your product requirements.
Q4: What are your payment terms?
A: We accept T/T and L/C.
Q5: Where is your factory located?
A: Our factory is located in Dezhou, Shandong Province—about 1 hour from Beijing and 4 hours from Shanghai by high-speed train. The nearest airport is Jinan Yaoqiang International Airport.










