hat
Vav fotèy kont kousen bobin pa sèlman dinamik idwolik yo opere amortissement pwomèt la lè a amortissement bobine nan yon pozisyon fèmen pòt ou louvri se konsa ki pou amelyore estabilite operasyon vavle, men tou ki itilize pou asire ke mouvman an tou dwat kousen bobin pou amelyore menm jan kalite vav DBD a.
eng
The valve seat against cushion spool not only has dynamic hydraulic damping effect when the cushioning spool in a closed or open position so that to improve the vavle operation stability, but also is used to ensure the straight movement of cushion spool in order to improve the static characteristics of the DBD valve.