flap valve
van bản lề
flap valve
van chặn về
flap valve
van mở cánh
clack valve, flap valve
van cánh cửa
dart valve, flap valve /hóa học & vật liệu/
van có nắp
clack valve, flap trap, flap valve
van lưỡi gà một chiều
clack valve, flap valve, leaf valve
van mở cánh
butterfly throttle-valve, clapper valve, flap valve, leaf valve
van lá
back valve, back-pressure valve, check valve, flap valve, inverted valve, nonreturn valve, self-closing damper
van chặn về
on/off butterfly valve, choke, clack, clapper valve, damper flap, flap valve, leaf valve, shutter, throttle
van bướm đóng-mở
back seating valve, back valve, back-pressure valve, check valve, cone way valve, flap valve, inverted valve, list check valve, nonreturn
van một chiều