gambar disamping adalah kondisi dari valve yang bocor, tidak ditemukan pelindung dari lubang flange tersebut yang membuat kondisi di dalam valve tersebut menjadi berkarat.
the picture on the right is the condition of the valve is leaking, there was no protection from the flange holes that make the conditions inside the valve to be rusty.
the picture beside is a condition of the valve is leaking, not found a patron of the flange holes which makes the condition inside the valve becomes rusty.