Slurry pump polyurethane spares amapangidwa ndi Polyurethane (PU mwachidule), ndipo amagwira ntchito bwino kuposa zopangira mphira wachilengedwe mumayendedwe a slurry, makamaka m'malo ovuta okhala ndi dzimbiri komanso zowononga.

Poyerekeza ndi zinthu zachilengedwe za mphira, zinthu za PU zili ndi izi:

Kuuma kosiyanasiyana- gombe A 10 - gombe D 64;

Kukana kuvala kwabwino kwambiri ndi moyo wautali wantchito;

Kukana kwabwino kwa hydrolysis, mafuta, asidi ndi kukana zamchere;

Kusinthasintha kwabwino, kukana kwamphamvu komanso kuyamwa kwamphamvu;

Low friction coefficient

Zimatsimikiziridwa kuti moyo wantchito waPUndi yayitali kuposa zida za Mpira kwa 3 ~ 5 nthawi, zomwe zimachepetsa kwambiri ma frequency ndi nkhani pakupopa.