Demountable Derrick Structure

Specification:1. Fabrication range: Water Seal,Website:, Riser, Derrick, Molecular Seal, Service pipe, Skid, Flare Tip, Platform & Ladder, Accessories & etc. (Pre-fabrication only) Excluded of site erection.2. Application code and standards: ASME, ISO9001: 20083. Design Press: 2.5~4.0 kg/cm24. Design Temp: 350 °C ~ 375° C5. Performance: Hight / Less than 145m, Weight / 100ton~1000tonDiameter: Water Seal / OD2000~5000, Riser/OD 1500~25006. Work Procedure(1) Purchase of Materials & Material Inspection.(2) Plate, Pipe Cutting, Bending & Machining.(3) Fit-up, Welding, NDE Inspection.(4) PWHT, Annealing, Tempering is if required.(5) Pre-Assembly of Derrick type.(6) Coating. ( Paint & HDGV)(7) Export Packing & Delivery.7. Delivery Period(1) Less than 100ton: Within 1 Months after receiving the advance payment.(2) 100ton ~ 300ton: Within 2 Months after receiving the advance payment.(3) 300ton ~ 600ton: Within 3 Months after receiving the advance payment.(4) 600ton ~ 1500ton: Within 4 Months after receiving the advance payment.

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