EN

FD-F Series Three-lever Type Butterfly Valve

Description

With flexible operation and good sealing performance, the three-lever type butterfly valve is applicable to media including air and gases in metallurgical industry, chemical industry, electric power industry and air separation industry.

Characteristic

  • The valve plate moves parallel to the valve seat to achieve frictionless movement;

  • Small flow resistance, small pressure loss and low leakage rate when the valve is fully open;

  • Special connecting rod structure design, sealing surface force uniform;

  • Master connecting rod and auxiliary connecting rod are almost equally master, and the connecting rod mechanism will not be stuck under high temperature conditions.

Specification

  • Nominal diameter: DN300~DN3000 (12"~120")

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  • Pressure rating: PN6~PN16 (class 150)

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  • Working temperature: -20°C~500°C

  • Connection mode: Flange

Material

  • Valve body: Ductile iron, carbon steel, stainless steel

  • Valve plate: Ductile iron, carbon steel, stainless steel

  • Valve seat: Soft seal, hard alloy