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Surface Treatment – outside / inside
• Outside coating with polyethylene / polypropylene
• 3-layer technology (3LPE / 3LPP)
•Sinter process
• acc. DIN30670 / 30678 and ISO21809-1
Inside lining
• Epoxy resin acc. API RP 5L2 to improve flow capacity of gas line pipe
• Various types of epoxy to protect from abrasion and highly corrosive fluids
• special laquers: suitable for conveying jet fuel
Inside lining of cement
• Compliant with national hygienic standards acc. DVGW W343 / W347 / W270
• Lining with suitable types of cement: portland cement (CEM I), portland cement sulfate-resistant (CEM I-HS), blast-furnace cement (CEM III)
• Blasting
• Varnishing
• Galvanizing
• Priming
• Pre-insulation
