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3M Construction Assembling & Trading Co., Ltd

THE MORE PROFESSIONAL, THE SAFER!

  • Tiếng Anh
  • Tiếng Việt
+84 903 815 852 - +84 225 3 564 259

Contact us 24/7

119/81 Nguyen Trai street, Ngo Quyen district, Hai Phong city, Vietnam

Our address

LPG pipe lines

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Pipe lines must be installed by:

LPG pipe lines

An installer with “LPG gas installation” qualifications. Welders with welder brazer qualifications.

Pipe lines in the liquid phase :

Overhead pipe lines

Seamless draft  steel tube: mandatory, AFG B 521.0 or NE A 49.111 or NE A 45.115 recommended

Buried pipeline

Seamless draft  steel tube with chemical and galvanic corrosion protection. Solacier or similar tube

Pipe lines in the gaseous phase:

Annealed copper tubes, plastic-sheathed types (wicu or similar) for buried pipe lines with chemical corrosion and stray current protection. AFG B 524.1 or AFG B 524.6 recommended

Cold-rolled copper tubes

For overhead pipe lines

AFG N 524.1 or NF A 511.20 or AFG B 524.6 or NFA 51.124 recommended

Seamless draft steel tubes, solacier or similar type

For buried pipe lines

AFG N 521.0 or NFA 49.111 or NFA 49.115 recommended

Seamless draft steel tubes

For overhead pipe lines protected by three coats of paint of which the first is rust-resistant. AFG N 521.0 or NFA 49.111 or NFA 49.115 recommended

High-density polyethylene tubes (HDPE) maximum working pressure of 4 bars. For pipe lines buried in trenches only and outside of all buildings.

AFG PE.63 or NF T 54.065 recommended

Electro-weldable device NF T 54.066 standards

Pliable coupling hoses for mobile appliances (gas cooker, washing machine, etc.) Pliable elastomer tubes (5-year working life)

Reinforced collapsible hoses with hose bibb (10-year working life) Collapsible hoses with metal carcass (unlimited working life)