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bx series


BX Series

The BX model knife gate is a bi-directional wafer valve specifically designed for the isolation of pulverized coal burner lines on coal fired boilers during maintenance.
DN 700 to DN 1000 (Smaller and larger diameters on request).
Working pressure:.
DN 700 to DN 1000: 3 bar
Standard flange connection:
DIN PN 10.
The BX valve complies with the following European directives:
DIR 98/37/EC (machines)
DIR 97/23/EC (PED): Fluid: Group 1 (b), 2 (Cat. I, mod A)
DIR 94/9/EC (ATEX))
Limits of DIR 94/9/EC: These valves have been classified in Device Group II and fall in the following categories:
II 1DG / 3DG c Category 1D or 1G inside the valve / Category 3D or 3G outside the valve
II 1DG / 2DG c Category 1D or 1G inside the valve / Category 2D or 2G outside the valve
DIN EN 14460 (DN 700-1000)
Valve housing resistance to explosive pressure:10,5bar
Igniting disrupting resistance against St1 dust explosion in closed position: 10,5bar.
*IMPORTANT: Pressure rating of the valve refers to maximum working pressure of the valve. The maximum explosion pressure exceeds many times the working pressure, so 94/9/EC limits must always be observed.

Features and Benefits



The valve is dust tight which makes it suitable for other bulk handling applications, such as silo outlet valves. This valve has been designed for use in potentially explosive areas (ATEX) and it complies with DIN EN 14460 (Explosion resistant equipment). In the closed position, the valve can be used as an effective measure against flame propagation in the event of an explosion.