DIN 30670 na-ezo aka na mkpuchi polyethylene na ọkpọ ígwè na akwa akwa-Ihe achọrọ na nnwale.
Ọkọlọtọ a na-akọwapụta ihe achọrọ maka mkpuchi mkpuchi polyethylene extruded atọ nke etinyere ụlọ nrụpụta, yana mkpuchi polyethylene nke nwere otu ma ọ bụ nke dị iche iche maka nchebe corrosion nke ọkpọkọ ígwè na akwa akwa.Ihe mkpuchi ahụ dabara adaba maka nchebe nke eli ma ọ bụ ọkpọkọ nchara nchara na okpomọkụ imewe nke-40 °C ruo +80°C. Ụkpụrụ dị ugbu a na-akọwapụta ihe achọrọ maka mkpuchi na-etinye aka na yaLSAW ígwè ọkpọkọ or enweghị nkebi ígwè ọkpọkọ naakwa akwa eji maka owuwu nke pipeline maka ibufe mmiri mmiri ma ọ bụ gas.Itinye ụkpụrụ a n'ọrụ na-eme ka mkpuchi PE na-enye nchebe zuru oke megide ibu ọrụ igwe, ọkụ na kemịkalụ na-eme n'oge ọrụ, njem, nchekwa na ntinye.TS EN ISO 21809-1 na-akọwapụta ihe achọrọ na ọkwa mba ụwa maka mkpuchi polyethylene na-ekpuchi elu atọ na mkpuchi polypropylene maka ọkpọkọ ígwè maka sistemu mmanụ na gas.DIN EN ISO 21809-1 anaghị ekpuchi mpaghara ngwa ndị a:─ihe mkpuchi polyethylene niile maka ọkpọkọ ígwè na ihe eji eme ihe maka mbufe na nkesa mmiri na mmiri mkpofu;─Ihe mkpuchi polyethylene niile maka ọkpọkọ ígwè na ihe ndozi na pipeline nkesa maka mgbasa ozi gas na mmiri mmiri,─otu-na multi-layer sintered polyethylene mkpuchi maka ọkpọkọ ígwè na ihe ndị a na-eji maka pipeline na-ebufe na pipeline nkesa Ụkpụrụ dị ugbu a ka dị irè maka mpaghara ngwa ndị dị n'elu.A na-ahazi mkpuchi polyethylene nke nwere akwa abụọ na ọkwa Europe na DIN EN 10288 nke e bipụtara na Disemba 2003.
A ga-ahọrọ ihe eji eme ihe na ikike nke mkpuchi n'ihi na, dabere na ntinye na usoro mkpuchi, a pụrụ iji ihe dị iche iche mee ihe kwekọrọ na ihe kacha nta a chọrọ n'ụkpụrụ a maka mkpuchi emecha.Ihe ọ bụla na-ehie ụzọ nke onye zụrụ ihe gbasara ihe ndị a ga-eji mee ihe ga-abụ nkwekọrịta. A ga-edozi elu ahụ site n'iwepụ nchara site na nchara.Nhicha mgbawa na ọrụ ọ bụla dị mkpa na-esote agaghị eme ka mbelata opekempe mgbidi nke akọwapụtara na ụkpụrụ nnyefe teknụzụ maka ọkpọkọ ígwè.A ga-ewepụ uzuzu ihe fọdụrụnụ tupu mkpuchi.
Oge nzipu: Sep-17-2019