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Composite Cross GB Standard

Composite Cross GB Standard

FRP/PVC-C, FRP/PVC-U Fiberglass Reinforced Plastic Coated Cross

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App Temperature Bound List
Material        Medium temperature℃ Material Medium temperature℃
PVC-C -20℃~+95℃ PVC-U -5℃~+45℃
FRPP -20℃~+120℃ PPH -20℃~+110℃
PVDF 40℃~+150℃

Product Structural Features

1. Lightweight and High-Strength
The relative density is between 1.5 and 2.0, only 1/4 to 1/5 that of carbon steel, yet its tensile strength approaches or even exceeds that of carbon steel, and its specific strength is comparable to that of high-grade alloy steel.
2. Excellent Corrosion Resistance
FRP is an excellent corrosion-resistant material, offering excellent resistance to air, water, moderate concentrations of acids, alkalis, salts, and various oils and solvents.
3. Excellent Electrical Properties
FRP is an excellent insulating material used in insulators. It maintains good dielectric properties even at high frequencies and has excellent microwave transmittance.
4. Excellent Thermal Properties
FRP has low thermal conductivity and is The thermal conductivity is 1.25-1.67 kJ/s, only 1/100-1/1000 of that of metal, making it an excellent thermal insulation material.
5. Excellent Designability
Flexible design of various structural products to meet specific application requirements, ensuring excellent product integrity and enabling the selection of materials to meet product performance requirements.
6. Excellent Manufacturability
Flexible molding technology can be selected based on product shape, technical requirements, application, and quantity. The process is simple, allows for one-step molding, and offers excellent economic benefits. This is particularly advantageous for complex, challenging, and low-volume products, highlighting its superior processability.

Composite Cross

DN D d1 d2 L Z S
0.6MPa 1.0MPa 1.6MPa
15  27  20  16  56  16  2  2  2.5 
20  32  25  21  66  19  2  2  2.5 
25  40  32  26  80  22  2  2  2.5 
32  50  40  33  98  26  2  2  2.5 
40  61  50  47  120  31  2  2  2.5 
50  75  63  59  148  38  2  2  3 
65  88  75  71  169  44  2  2  3 
80  104  90  86  198  51  2  2.5  3.5 
100  127  110  105  238  61  2  3  4 
125  161  140  135  298  76  2.5  4  5.5 
150  184  160  154  338  86  2.5  4  5.5 
200  249  225  219  480    119  3.5  5  7 
250  308  280  270  592    146  4  5.5  8.5 
300  346  315  304  666    164  4.5  6.5  10 
350  390  355  340  748    184  5  7.5  11.5 
400  440  400  384  840    206  5.5  8.5  13 

Note: The dimensions of composite pipe fittings may be subject to minor adjustments by mutual agreement between the supplier and purchaser.

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About Us
Kaixin Pipeline Technologies Co., Ltd.
Kaixin Pipeline Technology Co., Ltd., founded in 1999, is a high-tech enterprise integrating R&D, manufacturing, sales, and services. It has been recognized as a National-level Key Cultivation Enterprise for "Specialized, Sophisticated, Differential and Innovative" Little Giants, a National-level Key Cultivation Enterprise for "Single Champions," a Provincial Sci-Tech SME, a Ningbo Municipal "Specialized, Sophisticated, Differential and Innovative" SME, a Municipal Key Cultivation Enterprise for "Single Champions," a Municipal Polymer Pipe and Valve Technology R&D Center, a District Green Factory, a Municipal Enterprise Management Innovation (Four-Star) Enterprise, and a Data Management Capability Maturity (Level 2) Enterprise.
As a famous China Composite Cross GB Standard Suppliers and Composite Cross GB Standard Factory, the company specializes in the R&D, production, and sales of non-metallic chemical anti-corrosion products, including plastic valves, plastic pipes, plastic fittings, and corrosion-resistant pumps. Its material portfolio covers PVC‑C, PVC‑U, PVDF, PPH, and FRPP, offering a comprehensive range of products and specifications. The maximum diameter for butterfly valves reaches DN1000, while pipes and fittings can be manufactured up to DN800. Leveraging its municipal‑level technology R&D center, Kaixin has achieved full-process control from raw material selection and automated production to final product inspection. Its products are widely applied in corrosive environments across industries such as chemical processing, electroplating, and environmental protection, meeting customers' specific requirements for large diameters, temperature resistance, pressure resistance, and other special conditions.
Kaixin steadfastly follows the development philosophy of "technology‑driven and in step with the times," investing nearly ten million yuan annually in R&D. Through automated standardized production and strict selection of imported raw materials, the company ensures consistent product quality. Guided by its foreign trade development strategy, Kaixin keeps close to market trends and leverages the "Internet+" model to promote "Made in China" on the global stage.
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