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1. Sandwich-type butterfly valve is simple and compact in structure, light in weight and convenient for installation, disassembly and maintenance.

Product model: D71X
Nominal diameter: DN40~200mm
Nominal pressure: PN1.0/1.6mpa
Applicable medium: water, oil, gas and various corrosive medium
Applicable temperature: -20~120℃
Connection: in - between
Body material: cast iron, ductile iron, carbon steel, stainless steel, aluminum bronze
Seat material: rubber
Valve plate quality: ductile iron, stainless steel, aluminum bronze