Tiyeni tiphunzire za mapaipi a gasi wachilengedwe.

Zipangizo: X42, X52, X60 (API 5L standard steel grade), yofanana ndi Q345, L360, ndi zina zotero ku China;

Zinthu Zake: Mtengo wotsika, mphamvu zambiri, zoyenera mapaipi akutali (kupanikizika kwambiri, mawonekedwe akuluakulu a mainchesi);

Zoletsa: Zimafunika mankhwala oletsa dzimbiri (monga 3PE anti-corrosion layer) kuti nthaka isawonongeke/ikhale yolimba.

Mapaipi a Polyethylene (PE)

Zipangizo: PE80, PE100 (zoyesedwa malinga ndi mphamvu ya hydrostatic ya nthawi yayitali);

Zinthu Zake: Yosagwira dzimbiri, yosavuta kupanga (yothira moto), yosinthasintha bwino;

Kugwiritsa Ntchito: Kugawa kwa mizinda, mapaipi a pabwalo (kupanikizika kwapakati ndi kotsika, zochitika zazing'ono za mainchesi).

Mapaipi a Chitsulo Chosapanga Dzimbiri

Zipangizo: 304, 316L;

Mawonekedwe: Kukana dzimbiri mwamphamvu kwambiri;

Kugwiritsa Ntchito: Mpweya wachilengedwe wochuluka wa sulfure, nsanja za m'mphepete mwa nyanja, ndi zinthu zina zapadera zowononga.

Zinthu Zaukadaulo Zazikulu

Kusindikiza ndi Kulumikiza:
Mapaipi akutali: Maulumikizidwe olumikizidwa (kulumikiza arc yoviikidwa m'madzi, kulumikiza ndi gasi) amatsimikizira kutseka kwamphamvu;
Mapaipi apakati ndi otsika mphamvu: Malumikizano osungunuka ndi kutentha (mapaipi a PE), malumikizano okhala ndi ulusi (mapaipi ang'onoang'ono a chitsulo cha carbon/chitsulo chosapanga dzimbiri).

Njira Zotetezera Kudzimbiri:
Chitetezo cha dzimbiri chakunja: 3PE anti-corrosion layer (mapaipi akutali), epoxy powder covering;
Chitetezo cha dzimbiri mkati: Chophimba chamkati cha khoma (chimachepetsa mpweya wachilengedwe wodetsedwa), jakisoni woletsa dzimbiri (mapaipi okhala ndi sulfure wambiri).

Malo Otetezera: Okhala ndi masensa opanikizika, ma valve otsekedwa mwadzidzidzi, ndi makina oteteza cathodic (kuti asawononge nthaka ndi electrochemical); Mapaipi akutali ali ndi malo ogawa zinthu ndi malo ochepetsera kuthamanga kwa mpweya kuti akwaniritse malamulo oyendetsera kuthamanga kwa mpweya ndi kugawa madzi.

Miyezo ya Makampani
Padziko Lonse: API 5L (mapaipi achitsulo), ISO 4437 (mapaipi a PE);
Zamkati: GB/T 9711 (mapaipi achitsulo, ofanana ndi API 5L), GB 15558 (mapaipi a PE)