Rotary Valve: Blowing Seals
- Sizes from 150mm to 450mm
- Vented or plain inlets available
- Heavy-duty robust construction
- Various material options available
Britton Procol compact blowing seals were originally developed for use beneath flour silos where their compact size is an advantage in limited space. Heavy-duty versions suitable for handling most free-flowing products have since been developed, and two sizes are available in both light and heavy-duty configurations to complement the heavy-duty valve range.
Britton Procol heavy-duty blowing seals are designed to feed a wide range of dry granular solids and powders directly into pneumatic conveying systems. They are similar in construction to standard rotary valves but include an integral entrainment trough in the valve body and pipeline connection flanges in the valve endplates. This allows conveying air to pass through the blowing seal and ensures total product evacuation from the rotor pockets.
High sealing efficiency provides a low pressure drop across the valve, enabling blowing seals to handle low-density products that may be easily fluidised. The valve body incorporates venting ports as standard for purging rotor pockets. For less dense materials, an integral vent is recommended as a more efficient method of rotor venting.
