Repair works in pipeline

Characteristics and applicability of repair in pipeline

Corrosion resistance of nonmetals;

Self-pressure: bare pipe pressure 1.6MPa, sea breaking pressure 4.8MPa;

Applying L fast: applying 1 speed seat 300-400 m/h;

Over elbow: One pass R 5D elbow (90 ")

Caliber bright: Repair pipeline DN50-DN1200:

Long distance: according to the needs of the project, the maximum distance of 100 lines in one construction is 5km;

Main applications: oil field high pressure corrosion pipeline repair, municipal water supply pipeline renewal, heat pipeline renewal, industrial and mining water supply pipeline repair, gas pipeline repair or pressure boost transformation.

The construction process is divided into 8 steps, among which there are 3 key points

01. Pipeline evaluation; Preparation for construction

02. Pigging line sweeping

03. Test the pressure and fill the leak

04. Operate pit excavation and section pipe

05. Test pull test

06. Traction penetration

07. Pressure recovery; Joint treatment

08. Pressure test acceptance put into operation

Pipe structure and performance evaluation, the structure of the composite hose used in this technology

(Refer to product standards: FM211-1999, UL219-1-2006, BS16391, NFPA1961-2013, GB6246-2011, AP115S)