Durchgangsventil /nt/KT_LẠNH/
[EN] two-way valve
[VI] van hai phía
Durchgangsventil /nt/CT_MÁY/
[EN] full-way valve, straight-way valve
[VI] van thông, van cửa trung gian
Durchgangsventil /nt/NLPH_THẠCH/
[EN] straight flow valve
[VI] van dòng chảy thẳng