I-elbow ye-duplex ye-PPR iyinhlangano yepayipi efanele ukuguqula indlela yezimbambo ezimbili noma izinhlangano zezimbambo ngokwe-90 degrees. Kuyobe kusebenzeka kakhulu ezindaweni ezifana nezimbambo zokunyakaza nokunyakaza, zimbambo zokusebenza, zimbambo zokuvikela, ngezinye izinto. Kuyakwazi ukugxila izimbambo zezisize noma ezinye izinsimbi ukuze izimbambo ziqale phansi kulezi zinto ziqale khona.
Ngoba isithombe se-PPR sisebenza kahle kakhulu ngokuthola ukunyakaza, ukunyakaza nokunyakaza, izimbambo zezisize ze-PPR zisebenzisa kakhulu kwiqhaza, ukuvikela amanzi, ukuvikela, ukudayiswa kwemithi, ukudayiswa kwemifuno yamanzi kanye nezinye izinto. Zingakwazi ukwaziwa ngokuphelele kwezikhathi nezikhathi zokuvikela kanye nokuvikela kanye nokuvikela kwezimbambo zabo zokusebenza.

Amagama angamaqembu: isigqoko se-elbow se-PPR, eChina, abasebenzisi, abasebenzeli, ifektri, ukuthengiswa, okuncane, isilinganiso esiphansi, ezikhishwe, isampulu esisodwa