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Gerodur - GEROblanco II SDR 21

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Crassus provides this piping system purely for informational purposes within the context of the Pipe Lexicon.

Dimension

Pipe end

Details
Matching connections

Material category	Plastic
RXNR	267-8-S
Designation	Gerodur - GEROblanco II SDR 21
Manufacturer	Gerodur MPM Kunststoffverarbeitung GmbH & Co. KG
DN	250
Pipe end	Spigot
Material name	Polyethylen with high density (PE-HD)
Color (exterior)	Black
Applications	Drainage, Civil Engineering

ID (mm)	226.2
OD (mm)	250
Wall thickness (mm)	11,9

GEROblanco II SDR 21

The GEROblanco II SDR 21 pipe is made from PE-HD (high-density polyethylene) in grades PE 80, PE 100, and PE 100-RC and complies with DIN 8074/8075 standards. It is primarily used in wastewater disposal systems. The pipe has a nominal ring stiffness (SN) of 8,0 kN/m² according to DIN EN ISO 9969 and is designed for use in underground wastewater channels and pipelines.
The pipes are connected through heat coil welding, ensuring a permanently tight, force-locked connection that eliminates the risk of root intrusion and infiltration or exfiltration. An additional light-colored internal coating provides optimal inspection possibilities through camera inspections without disturbing reflections.
The pipe system is characterized by high abrasion resistance and chemical resistance.

Technical Advantages and Features:

•    Durability: High abrasion resistance and chemical resistance
•    Leakage Prevention: No root intrusion, no infiltration or exfiltration
•    Application Area: Underground wastewater channels and pipelines
•    Internal Coating: Light-colored layer for optimal inspection (no reflections)
•    Longevity: Over 100 years of service life
•    Maximum Deformation: 6%
•    Nominal Ring Stiffness: SN 8,0 kN/m²
•    Connection Technology: Heat coil welding (tight, force-locked connection, root-resistant)
•    Material: PE-HD (PE 80, PE 100, PE 100-RC)

Source: www.gerodur.de

Flexible pipe connections

Adaptor Coupling CAC 2654

240-265 mm | 144-160 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 2655

240-265 mm | 170-192 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 2656

240-265 mm | 190-215 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 2657

240-265 mm | 210-235 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 2754

250-275 mm | 160-175 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 2756

250-275 mm | 200-225 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 2250

260-285 mm | 240-250 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 2908

265-290 mm | 235-260 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 3208

295-320 mm | 240-265 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 3608

335-360 mm | 240-265 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 3858

360-385 mm | 240-265 mm

up to 0.6 bar / 8.7 PSI

Adaptor Coupling CAC 4208

395-420 mm | 240-265 mm

up to 0.6 bar / 8.7 PSI

Drain Coupling CDC 250

up to 0.6 bar / 8.7 PSI

Drain Coupling CDC 265

up to 0.6 bar / 8.7 PSI

Standard Coupling CSC 265

up to 2.5 bar / 36.3 PSI

Standard Coupling CSC 250

up to 2.5 bar / 36.3 PSI

Standard Coupling CSC 275

up to 2.5 bar / 36.3 PSI

Standard Coupling CSC 265 FKM

up to 2.5 bar / 36.3 PSI

Standard Coupling CSC 250 FKM

up to 2.5 bar / 36.3 PSI

Standard Coupling CSC 275 FKM

up to 2.5 bar / 36.3 PSI

Special products

Outside End Cap CEC 250

up to 0.6 bar / 8.7 PSI

Inside End Cap CSV 220

213-230 mm | 1 mm

up to 0.5 bar / 7.3 PSI

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