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One of the most complete plastic pipe manufacturing bases in Central-South China

GUOSU PIPE INDUSTRY
Municipal Engineering Pipe Direct from Factory

Steel belt reinforced corrugated pipe at 16 kN/m² ring stiffness; HDPE double wall corrugated pipe, CPVC power conduit and plastic manholes all made in-house — 200+ specifications · 100,000 t/yr capacity · ships in 3 days

16kN/m²
Ring Stiffness
50yrs
Buried Service Life
100kt
Annual Capacity
200+specs
Full Range
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Hunan Guosu steel belt reinforced corrugated pipe, CPVC power conduit and plastic manhole
Manufacturer Strength

Scale & Manufacturing Strength

High-tech enterprise integrating plastic pipe manufacturing and sales; business licence verified and company authenticated

Company Profile

CompanyHunan Guosu Pipe Industry Co., Ltd.
FoundedJuly 2015
LocationNingxia ETDZ, Changsha, Hunan
Factory Area100+ mu (≈67,000 m²)
Technical Team100+ engineers
BrandGUOSU

Capacity & Delivery

Annual Capacity100,000+ tons
Annual Output Value100M+ RMB
Specifications200+ models
OriginNingxiang, Hunan, China
Lead TimeShips within 3 days
SupplyFactory direct / OEM

Applications

Municipal DrainageStorm / Sewage / Effluent
Power ProtectionHV cable conduit
TelecomFibre / comms duct
ConstructionWater supply & drainage
TrenchlessJacking / directional drilling
IndustrialChemical media transfer
Full Product Matrix

Three Categories · 21 Product Series

One phone call for your entire pipeline — municipal pipe · civil pipe · plastic manholes

Municipal Engineering Pipe

13 series
Best Seller

Steel Belt Reinforced PE Spiral Corrugated Pipe

Three-layer wall (solid inner liner + U-shaped spiral steel rib + PE outer wall) breaks the SN8 ceiling for large-diameter buried drainage; corrosion resistant, flexible and quake-resistant, 50-year service life.

Main Drainage Pipe

HDPE Double Wall Corrugated Pipe

Ring-shaped corrugations dramatically raise ring stiffness and soil-load resistance; -70C brittleness temperature, roughly 50% material saving at equal load, low friction and high flow, 50+ years buried.

Chemical Resistant

PP-HM Polypropylene Double Wall Corrugated Pipe

PP offers a higher temperature ceiling than PE with superior acid, alkali and chemical-media resistance for industrial effluent and aggressive corrosive environments.

Large Diameter

HDPE Hollow Winding Pipe

The mainstream solution for large-diameter trunk drainage mains; adjustable ring stiffness, reliable joints, suited to urban arterials and major municipal drainage projects.

For Power

CPVC / PVC-C High Voltage Power Conduit

Excellent acid/alkali resistance, flame retardancy and insulation; continuous service temperature up to 80C; sizes from 110 mm to 1700 mm and above.

MPP Jacking

MPP Power Jacking Pipe

High heat distortion temperature, excellent low-temperature impact resistance and electrical insulation; -5C to 70C service range for trenchless power cable crossings.

通信集采

PVC-U 埋地通信管

七孔大口径通信管道，电信运营商集采品类，敷设方便，抗土壤负荷，配套齐全。

Fibre Protection

HDPE Silicon Core Pipe

Low-friction silicone inner coating reduces installation tension and improves protection; serves both power and telecom applications.

Trenchless

PE Jacking / Trenchless Pipe

For horizontal directional drilling of municipal sewage and drainage, cutting open excavation and its disruption to traffic and daily life.

Power Pulling

PVC / PE Multi-Hole Duct · 7-Hole Duct

Multi-hole duct design pulls several cables in one pass; PE or PVC available, insulating and resistant to mechanical damage.

Pressure Pipe

GRP (FRP) Sand-Cement Pipe

GRP pressure pipe with strong pressure capability and corrosion resistance for pressurised water networks and industrial transfer.

Cable Protection

GRP Cable Protection Pipe

High mechanical strength and thermal stability for long-term buried power cable protection.

Water & Gas

HDPE Water Supply / Drainage · PE Gas Pipe

Municipal water trunk mains and gas pipelines compliant with national PE pressure ratings and hygiene standards.

Civil Pipe

5 series
Water & Drainage

PVC-U Water Supply & Drainage Pipes (Fittings)

The workhorse of building water supply and drainage; complete fitting range, reliable sealed joints, compliant with GB/T 5836 series.

Water & Drainage

PVC-U Water Supply & Drainage Pipe

Corrosion resistant and non-scaling with glued or elastic sealed joints; quick installation for building and municipal drainage.

Hot/Cold Water

PP-R Hot & Cold Water Pipe

The standard choice for purified water and domestic hot/cold systems; excellent hygiene, pressure and temperature resistance, 50-year life.

Fibre Reinforced

F-PPR Fibre Reinforced Hot & Cold Water Pipe

Fibre-reinforced PP-R with upgraded ring stiffness and pressure capacity for high-rise buildings and underfloor heating.

Electrical

Insulating Electrical Conduit

For protecting building wiring; strong insulation, flame retardant and heat resistant, prevents mechanical damage to cables.

Plastic Manhole & Chamber

3 series
Flagship

HDPE Plastic Manhole

Complete base, shaft and cover. Saves land, energy, water, material and is eco-friendly; 1-3x the discharge rate of brick chambers; 10-20x faster installation; flexible joint resists settlement; compliant with CJ/T 233-2006.

Stormwater

HDPE Plastic Infiltration Pit

A core component of sponge-city stormwater systems, promoting infiltration and groundwater recharge while relieving urban flooding and runoff.

Overflow

Plastic Overflow Chamber

For overflow discharge from ponds, reservoirs and balancing tanks; sealed and leak-proof, built for long-term outdoor exposure.

Core Technology

Three Flagship Technologies

Not all plastic pipe is equal — ring stiffness, service life and installation speed decide whether a municipal pipeline survives 50 years

Best Seller

Steel Belt Reinforced Corrugated Pipe

STEEL BELT REINFORCED CORRUGATED PIPE
16 kN/m² ring stiffness
  • Three-layer wall: solid inner liner + U-shaped spiral steel rib + heat-fused PE inner and outer layers
  • Steel-to-plastic elastic modulus ratio >200 and weight ratio 7.85 give a far better stiffness-to-weight ratio than pure plastic pipe
  • Breaks through the SN8 ceiling that limits large-diameter buried plastic drainage pipe
  • Flexible joints tolerate settlement and suit soft or flowing sandy ground
  • Service life up to 50 years, with long-term medium temperature below 45C
  • Only one eighth the weight of concrete pipe — laid by excavator alone, no heavy lifting equipment
  • Joints are made outside the trench then pushed in, cutting labour time and cost
  • Better wear resistance than steel or concrete pipe, with strong solids-carrying capacity
  • HDPE is harmless to the soil and fully recyclable
Main Pipe Type

HDPE Double Wall Corrugated Pipe

HDPE DOUBLE WALL CORRUGATED PIPE
-70 C brittleness temp
  • High external pressure resistance — ring corrugations greatly raise ring stiffness
  • Lower cost — under equal load only a thinner wall is needed, saving about half the raw material
  • 施工方便：重量轻，搬运连接便捷，工期紧时优势更明显
  • Low friction and high flow — a smaller diameter can carry the same discharge
  • Excellent low-temperature and impact resistance — no special winter protection above -30C
  • Excellent chemical stability — resists most media, does not scale, and maintains flow area over time
  • German testing shows HDPE outlasts steel pipe in wear resistance by a factor of several
  • Suitable axial deflection lets the pipe follow minor ground settlement
Differentiator

HDPE Plastic Manhole

HDPE PLASTIC MANHOLE
10-20 x faster install
  • Five functional advantages: saves land, energy, water and material, and is environmentally sound
  • Settlement resistance — the flexible joint between pipe and base move together, preventing surface collapse
  • Fast installation — modular assembly with on-site shaft trimming, 10-20 times faster than brick chambers
  • Superior drainage — smooth inner wall and flow channel give 1-3 times the discharge rate of brick chambers
  • High load capacity and adaptability — shaft height and openings can be tailored on site
  • Sealed and leak-proof — flexible socket or heat-shrink connections prevent groundwater contamination
  • Suits diameters up to 1200 mm, burial depth up to 8 m, and seismic intensity 9 or below
  • Loads — 15 t on ordinary lanes (5 t rear wheel) and 30 t on fire lanes (6 t rear wheel)
Technical Parameters

Key Technical Parameters at a Glance

Standard stock sizes, custom production available — final specifications confirmed on inquiry

Steel Belt Reinforced Corrugated Pipe

MaterialHDPE + spiral steel belt
Nominal DiameterDN110 - DN2000+
Ring Stiffness ClassSN8 / SN10 / SN16
Nominal Pressure1.6 MPa
Standard Length6 m / custom cut
Continuous Temp.≤ 45C (medium)
Colour / GradeBlack / GUOSU

HDPE Double Wall Corrugated Pipe

MaterialHDPE
Nominal DiameterDN200 - DN2000
Ring Stiffness ClassSN4 / SN8
Nominal Pressure1.0 - 1.6 MPa
Wall ThicknessMatched to ring stiffness
Standard Length6 m
Service Temp.-60C, will not burst

CPVC / PVC-C Power Conduit

MaterialCPVC (PVC-C)
Nominal DiameterDN110 - DN1700+
Nominal Pressure0.8 MPa
Wall Thickness3.2 mm at DN200
Standard Length6 m
Continuous Temp.≤ 80C
JointingSocket cementing / elastic seal

Wire Reinforced PE Composite Pipe

MaterialHDPE + steel wire skeleton
Nominal DiameterDN110 - DN2000+
Nominal Pressure1.6 MPa
Standard Length6 m / custom cut
JointingElectrofusion / flange
AdvantagePE flexibility + steel strength
ApplicationMunicipal water / industrial pressure
One Glance

Full Product Range in One Image

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Hunan Guosu full product matrix: municipal engineering pipe, civil pipe and plastic manholes

Need Specifications or a Quote?

Send us the diameter, burial depth, ring stiffness class and order quantity — the factory quotes directly.
Ships within 3 days, volume discounts, nationwide and export delivery.

181 7515 2788
Mr. Zhang, General Manager ｜ Ningxiang ETDZ, Changsha, Hunan, China
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