FRP Cable Protection Pipe

Product Introduction

FRP cable protection pipes are engineered using advanced filament winding technology with high-strength fiberglass and corrosion-resistant resin. Designed to safeguard electrical and communication cables, they offer excellent durability, mechanical strength, and a long service life—making them a reliable alternative to traditional metal and PVC conduits.

Lightweight and easy to install, FRP cable protection pipes feature a smooth inner surface that reduces friction for efficient cable pulling. Their non-conductive, corrosion-resistant, and fire-retardant properties enhance safety, making them ideal for underground, tunnel, bridge, and industrial applications. FRP cable protection pipes ensure long-term, low-maintenance performance even in demanding environments.

Product Specification

Nominal inner diameter D	Nominal thickness T			Inner diameter of socket end D1			Depth of socket End S	Nominal Length L
	DB-N	DB-R	DB-E	DB-N	DB-R	DB-E
100	3	5	8	116	120	126	80	4000
125	5	–	8	145	–	151	100	4000
150	5	8	10	170	176	180	100	4000
175	8	10	12	201	205	209	100	4000
200	8	10	14	226	230	238	120	4000

Mechanical properties

No.	ltem	Index
1	Bend strength(MPa)	≥135
2	Tensile strength(MPa)	≥120
3	Impact property	no cracks
4	Stiffness while the variety ratio is 10%(MPa)	DB-N, DB-R, DB-E ≥1.2 ≥2.4 ≥5.0
5	Heat distortion temperature under bend load(℃) (Maximum bend positive stress is 1.81Mpa)	≥130
6	Retention ratio of bend strength after soaked in water(%)	≥80
7	Barcol hardness	≥35
8	Index of oxygen(%)	≥26
9	Sliding friction coefficient	≥0.34
10	Heat resistance factor(℃•m/W)	≥4.8

Product Features

1. High Strength for Direct Burial
   Suitable for direct burial under roadways without the need for additional protective layers, accelerating construction progress.
2. Excellent Toughness
   Resistant to external pressure and ground settlement, maintaining structural integrity in complex environments.
3. Electrical Insulation & Heat Resistance
   Flame-retardant and non-deformable at temperatures up to 130℃, with superior electrical insulation properties.
4. Outstanding Corrosion Resistance
   Resistant to acids, alkalis, salts, and organic solvents, with a service life of up to 50 years.
5. Cable-Friendly Interior & Easy Installation
   Smooth inner surface prevents cable abrasion; rubber-sealed socket joints allow fast, secure connections and accommodate thermal expansion.
6. Lightweight & Easy to Handle
   Low specific gravity allows for manual handling by one or two people, reducing labor costs and shortening construction time.
7. Non-Magnetic & No Electrical Corrosion
   Unlike metal pipes, FRP does not generate eddy currents, preventing cable heating and damage.
8. Versatile Applications
   Ideal for underground cable protection as well as demanding scenarios like road crossings, tunnels, and river crossings.

Applications

The FRP cable casing pipe is suitable for the laying of the cable be used for electric power and communication at various occasions. Especially the cable which passes the traffic arteries, river, bridge, etc special environment, it can represent the easy construction, high strength,etc advantages adequately.

Hengshui Jiubo Composites Co., Ltd. is a leading manufacturer of chemical equipment and fiberglass composite products. We specialize in turnkey solutions for potassium sulfate, sodium sulfate, sulfuric acid, and calcium chloride production lines, as well as FRP pipes, tanks, cooling towers, molded & pultruded products, and complete FRP production machinery.

Beyond manufacturing, we offer material selection, structural design, technical consultation, material supply, transportation, and installation supervision to support our customers’ needs. Now we have 300 employees, with an annual production capacity of 20,000 tons of fiberglass-reinforced plastic products.

With ISO9001, ISO14001, ISO45001, and SGS certifications, we ensure high-quality standards. Our products are exported worldwide, including the U.S., Canada, Australia, Brazil, Japan, Germany, Russia, India, and Egypt, earning global customer trust.

Our Products & Services:

• EPC Solutions: Complete chemical production lines for potassium sulfate, sulfuric acid, etc.
• FRP Production Lines: FRP pipe & tank winding, pultrusion, and grating production lines.
• Fiberglass Products: FRP pipes, tanks, towers, electrolytic cells, cooling towers, and anti-corrosion solutions.

Through robust manufacturing, technological innovation, and comprehensive support, we deliver quality solutions globally and strive for enduring industry partnerships.