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Home > Manufacturing & Processing Machinery > Plastic Machinery > Other Plastic Machinery > HDPE Krah Profile Pipe for Large Diameter Drainage Systems

HDPE Krah Profile Pipe for Large Diameter Drainage Systems

Product Spotlights

High-strength HDPE Krah profile pipe designed for large-diameter drainage. Features a corrugated structure for superior ring stiffness and load-bearing capacity, coupled with a smooth inner liner for optimal hydraulic flow. Offers excellent chemical resistance, lightweight for easy installation, and flexible, leak-proof joints. Ideal for municipal, industrial, and agricultural drainage systems requiring durability and long service life.

Negotiable MOQ: 1 Set (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

High-Density Polyethylene (HDPE)

Diameter Range:

Large Diameter (e.g., 300mm - 3000mm)

Profile Type:

Krah (Corrugated) Profile

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Qingdao Yongke Machinery Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

Qingdao

Delivery Detail:

30 days

Product Details
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Material High-Density Polyethylene (HDPE)

Diameter Range Large Diameter (e.g., 300mm - 3000mm)

Profile Type Krah (Corrugated) Profile

Application Large Diameter Drainage Systems

Standard ISO 9001, ISO 14000, OHSAS 18001

Color Black (Standard)

Length Customizable (e.g., 6m, 12m)

Connection Type Spigot and Socket, Butt Fusion

As a leading manufacturer with over a decade of experience, Qingdao Yongke Machinery Co., Ltd. specializes in providing robust and reliable drainage solutions for large-scale infrastructure projects worldwide. Our HDPE Krah Profile Pipe is engineered to meet the demanding requirements of modern large-diameter drainage systems, offering superior hydraulic performance, exceptional durability, and cost-effective installation. We combine advanced manufacturing technology with stringent quality control to deliver products that stand the test of time and nature.

Core Product Features & Technical Advantages:

Superior Structural Design: The unique Krah corrugated profile provides an optimal balance between high ring stiffness (SN) and material efficiency. This design ensures the pipe can withstand substantial earth loads and live traffic loads without deformation, making it ideal for deep burial applications.
Excellent Hydraulic Capacity: The smooth inner liner, seamlessly co-extruded with the corrugated profile, minimizes flow resistance. This results in a high Manning's 'n' coefficient, allowing for efficient water conveyance and potentially reducing the required pipe diameter for a given flow rate.
Outstanding Material Properties: Manufactured from high-quality, virgin HDPE resin, our pipes offer exceptional resistance to abrasion, chemical attack (from soils, leachates, and aggressive effluents), and environmental stress cracking. This ensures a long, maintenance-free service life.
Lightweight & Easy Installation: Compared to traditional materials like concrete or steel, HDPE Krah pipes are significantly lighter. This translates to lower transportation costs, reduced need for heavy lifting equipment, and faster, safer on-site installation, drastically cutting down project timelines and labor expenses.
Flexible & Leak-Free Jointing: The pipes are typically joined using robust spigot and socket connections with integrated EPDM rubber seals, ensuring a flexible, watertight seal that can accommodate ground settlement without leaking. Butt fusion is also available for creating monolithic, inseparable pipelines.
Environmental Sustainability: HDPE is a fully recyclable material. Our pipes contribute to sustainable construction practices and have a minimal environmental footprint throughout their lifecycle.

Detailed Technical Specifications:

Parameter	Typical Range / Value	Notes
Nominal Diameter (DN/ID)	300 mm - 3000 mm	Custom sizes available upon request
Standard Ring Stiffness (SN)	SN4, SN8, SN12, SN16	Higher classes for deeper burial
Standard Length	6 meters or 12 meters	Other lengths can be customized
Material Grade	PE100 or PE80	High-density polyethylene
Color	Black (with UV stabilizer)	Other colors optional
Connection	Integral socket with EPDM seal	Butt fusion for specific projects

Application Areas:

Municipal stormwater and rainwater drainage systems
Landfill leachate collection and gas venting systems
Industrial wastewater outfalls and culverts
Agricultural drainage and irrigation channels
Road and railway drainage culverts
Subsurface drainage for sports fields and infrastructure

Backed by our integrated management system certifications (ISO9001, ISO14000, OHSAS18001), our 10,000-30,000 sqm factory, and a seasoned team of 51-100 professionals, we guarantee consistent product quality and reliable supply. With an annual export value of US$1-1.5 Million and a presence in markets across North America, Europe, Asia, Africa, and Oceania, Qingdao Yongke has proven its capability to support global infrastructure development. Our HDPE Krah Profile Pipe represents a smart investment for your next large-diameter drainage project, offering long-term performance, reduced lifecycle costs, and simplified logistics. Contact us today to discuss your specific requirements and request a quotation.

Frequently Asked Questions (FAQ):

What is the main advantage of the Krah profile compared to other corrugated designs?
The Krah profile is engineered for high ring stiffness with optimal material use. Its design provides superior resistance to crushing under high loads, making it suitable for deeper burial depths than many standard corrugated pipes, while maintaining a smooth interior for excellent flow.
What is the maximum burial depth for your HDPE Krah pipes?
The safe burial depth depends on the pipe's ring stiffness class (SN rating) and the soil conditions. Our SN16 pipes, for example, are designed for very deep installations. Our engineering team can provide specific recommendations based on your project's geotechnical report.
Are these pipes suitable for potable water applications?
Our standard HDPE Krah pipes are primarily designed for drainage, sewage, and non-potable applications. For potable water systems, we can supply pipes made from certified PE100 compounds that meet relevant drinking water standards upon request.
How are the pipes joined on site?
The primary method is a simple spigot-and-socket push-together joint with a factory-installed EPDM rubber seal, which is quick and creates a flexible, watertight connection. For applications requiring a fully fused, rigid system, butt fusion welding is also an option.
Can you supply fittings and manholes compatible with these pipes?
Yes, we offer a complete system solution. We manufacture a full range of fittings (bends, reducers, tees) and can supply prefabricated manhole sections or provide solutions for constructing manholes in-situ using our pipe segments.
What is the lead time for a large order?
Lead times vary based on order quantity, diameter, and customization. For standard sizes and large projects, we maintain production planning to ensure timely delivery. We recommend contacting our sales team for a precise schedule based on your project timeline.
Do your pipes have UV protection?
Yes, our standard black pipes contain carbon black, which provides inherent UV stabilization to prevent degradation from sunlight during temporary storage on site. For extended above-ground exposure, additional protective measures may be advised.
What quality control measures are in place during manufacturing?
Our production is governed by ISO 9001 standards. We conduct rigorous in-process checks on dimensions, profile geometry, and material properties. Final inspection includes pressure testing of joints (if applicable) and visual checks to ensure every pipe meets our specifications before shipment.