Why KRAH
• Technical advantages
- For example, a DN/ID 600 mm culvert, concrete culvert would weight approximately 630kg x 5 pcs to achieve a length of 6.0m, but for our pipe of SN8 x 6.0m only weight 135 kg.
- This difference in weight would reduce the cost for handling and foundation significantly.
- KRAH pipes boast the advantage of the flexibility of the pipe.
- Flexible pipes have the ability to absorb stresses from soil settlement, seismic activity, traffic loads or other ground movement without fracturing.
- Flexible pipes can withstand impact and external forces by flexing.
- Flexible pipes can conform to irregular terrain during installation.
- In seasonal countries, the flexible pipes can resist damage from freezing and thawing cycles.
- We use only high quality PE-100 to tap onto all the advantages of the material properties, such as
- impact resistant,
- abrasive resistant,
- UV resistant,
- temperature resistant,
- chemical resistant and
- environmental elements resistant.
- Comprehensive System
- Pipe fittings
- Pipe accessories
- Manholes
- Adaptive jointing
- Price Friendly
- Tailor-made based on project requirement
- Quality Assurance
- Reduce maintenance cost
- Reduce service cost
- Shorten installation time and longer service life
- Sustainability features – minimize environmental impact / reduced carbon
- Cost efficiency – reduced traffic interruption / reduced labour cost / reduced machinery cost / reduced maintenance cost
• Joint technology – Electrofusion Joint
○ Pipe design complete with socket & spigot
○ Brief installation procedure (short clip if possible)
○ Table to compare estimated installation time comparing (EF vs BF vs flange)
○ Jointing quality – homogeneous PE100
Remarks: 1psi = 6.89476 kPa
* Length, profile, and stiffness are customized without additional fitting
What is Ring Stiffness, SN?
Ring stiffness, SN measures a pipe’s resistance to deformation under external pressure. It’s a crucial indicator of a pipe’s strength and durability.
Ring Stiffness classes SN, as described in DIN EN ISO 9969, the pipe is subject to load between two parallel flat plates, but the ring stiffness is determined by measuring the force and the deflection while deflecting the pipe at a constant deflection speed.
Advantages of Ring Stiffness, SN
- Strength and Durability: By focusing on ring stiffness SN, we highlight the core strength and resilience of our pipes. High SN values demonstrate that our pipes can withstand heavy loads and environmental pressures without compromising performance.
- Quality Assurance: Ring stiffness SN testing ensures that our pipes meet or exceed industry standards for strength and durability. Emphasizing SN values assures customers of the consistent quality and reliability of our products.
- Performance in Real-world Conditions: SN values reflect how our pipes will perform in actual applications, such as culverts or drainage systems. Customers can trust that our pipes will maintain their integrity even in challenging environments.
- Cost-effectiveness: Pipes with high ring stiffness SN values offer long-term cost savings by minimizing the need for repairs and replacements. Emphasizing SN values communicates the value proposition of our pipes as durable, low-maintenance solutions.
- Versatility: SN values provide a versatile benchmark that applies across different applications and industries. Whether it’s for infrastructure projects or agricultural drainage, our pipes demonstrate consistent strength and reliability.
While Ring Stiffness, SR24 testing provides additional assurance of pipe quality, emphasizing ring stiffness SN demonstrates our commitment to meeting essential industry standards effectively.
While pipe stiffness is important for overall performance, ring stiffness SN serves as a comprehensive indicator of both strength and flexibility, making it a more impactful metric for showcasing the advantages of our pipes.