Presyon operasyon an nansele mekanikpou pumps is the pressure of the sealing interior sealing medium. Since the sealing indoor medium pressure is not equal to the working pressure of the pump, the mechanical seal work pressure is equal to or lower than the working pressure of the pump, so the sealing operation pressure is determined according to the structure of the pump. For example, the single-stage cantilever pump should think of an imbalance hole or a back blade according to the multi-stage pump level, according to the installation of the multi-stage pump level.
Anjeneral nan pratik nan sele mekaniks pou pumps, presyon travay la pi wo pase 3 MPa, epi yo itilize sele ekilib la pou chwazi yon sele balanse, epi sele milti-etap la ka sele epi demisyone etap pa etap. Kalite estriktirèl la (tankou mekanik milti- sele, elatriye) yo konsidere yo dwe konsidere. Tipikman, gen yon sele ki pa {{0}}ekilib nan 0.7 MPa anba 0.7 MPa oswa mwens pase komodite gazolin lan. Li posib tou pou chwazi yon sele ki pa -ekilib nan yon valè ki mwens pase 6.6 mPa.m / s. Pou lwil ki gen pi ba dansite anba a {{10}}.6kg / L, li ekilibre pou sele. Te sele a balanse chwazi nan 0.2-0.33 MPa presyon nan 0.2-0.33 MPa presyon sou yon viskozite ki ba ak lubricity pòv.
