hat
An dirèk aktyèl soulajman vann ki itilize pou limite pwesyon sistèm a pa réglage manch dirèkteman. Vav sa a ki itilize pou pi gwo pwesyon machin lan ak ti règ yo ki te konn, konsa tankou yon asansè kòm yon enstriman pou pwoteksyon sekirite. Pati kle dirèk aji alèjman vann DBD jan de se a...
eng
The direct acting relief valve is used for limiting the system pressure by adjusting handle directly. This valve is used for the higher pressure machine with small flow rate, such like an elevator as a device for safety protection. The Key part of direct acting relief valve DBD type is the...