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2009- 9- 6

The wafer style PTFE lined butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent backflow in systems designed for unidirectional flow. It accomplishes this by using a tightly fitting seal, i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.

2009- 9- 6	#23
haoyunzai5156 Guest الملف الشخصي: رقم العضوية : المشاركات: n/a عدد الـنقـاط :	Wafer-style butterfly valves The wafer style PTFE lined butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent backflow in systems designed for unidirectional flow. It accomplishes this by using a tightly fitting seal, i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.