A partitioned, transparent hopper that provides airflow to prevent bridging while allowing full product flow visibility and access.
The Venting Surge Hopper is an angled, tapered connector with an internal partition that allows powder to flow in on one side and displaced air to flow up and out the other.
Unlike steel hoppers where you have to open an inspection hatch to see if bridging is occurring inside, the transparency of the Seeflex 040E material gives visibility of product flow. Its flexible walls are malleable, meaning bridging can often be easily freed up simply by massaging the side of the hopper.
The hopper is designed to fit into a special Surge Hopper Spigot (on the lower end) that features a weir plate to match the angle of the connector partition.
0.34 bar / 5.0 PSI (for temp. to 90˚C / 195˚F measured on a static Ø200mm x 200mm long connector). We recommend using the shortest possible connector for applications where increased pressure and/or high temperature is expected.
Yes
400mm- 1,000mm in 50mm increments (16” – 39½“ in 2” increments)
Subject to minimum lengths based on differential between inlet & outlet diameters - refer to the 'Venting Surge Hopper - Minimum Lengths' table on the Product Spec Sheet.
For added security, this option has a significantly firmer snap-band that makes it virtually impossible to remove by hand and requires a specially shaped tool.
It is recommended that you use the Tool Release version in particular with the Venting Surge Hopper as an added safety measure if you are installing it above the rotary valve.
Our Technical Lead, Matthew Bailey, explains the Venting Surge Hopper Design and how it works to help product flow.
A custom spigot with a built-in weir plate and flange designed to match up with a rotary valve below and the partition in the Venting Surge Hopper...
Tapered connectors can be created when having two equal-diameter spigots is not an option, or used as a simple hopper.
