DIN F4 Soft Seal Butterfly valve, used with petroleum industry, natural gas and water, made of stainless steel, suitable for strong acid and alkali.
Size:DN100-DN2000 Pressure Rate: PN16-40
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API 609 Swing Butterfly valve, used with petroleum industry, natural gas and water, made of stainless steel, suitable for strong acid and alkali.
Size:2-1/2"-12" Pressure Rate: Class150
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