DOUBLE FLAP VALVE

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DOUBLE PENDULUM VALVE

In the double flap valves, the plugs that block the passage of the material are the flaps or flappers.

Unlike double pendulum valves with cones or cups, they are widely used in the discharge systems of electrostatic precipitators, bag filters, cyclones and pelletizing furnaces. Apart from having a more attractive cost, they provide excellent tightness during operation.

Technical characteristics

Height	630 to 1600 mm The dimension can be customized according to customer’s needs
Inlet nozzle dimension	200, 300, 400, 500 The dimension can be customized according to customer’s needs
Maximum differential pressure	Up to 1600 mmca
Volumetric flow rate @ 6 cycles/min	0.8 to 16 m³/h Capacity can be customized according to customer’s needs
Maximum material temperature	600°C
Actuation	Gear train Pneumatic Cylinder Hydraulic Cylinder
Flapper - closing mechanism	Counterweight Spring Pneumatic Cylinder Gravity
Body	One-piece Two-piece
Seat material	ASTM A532 Class II Type B Chrome White Iron AF-45 Cast Steel with Tungsten Carbide Carbon Steel with Tungsten Carbide Stainless Steel
Flapper material	ASTM A532 Class II Type B Chrome White Iron Hardox 500 Carbon Steel with Chromium Carbide Stainless Steel
Body material	Ferritic Nodular Cast Iron– GGG40 USI AR 400 Carbon Steel Stainless Steel
Seat-Flapper Interface seal	Metal-Metal Metal-Viton ASTM-D-1418: FPM Metal-Nitrile Rubber ASTM-D-1418: NBR Metal-Expansive Neoprene