The Series JS Valve is specifically designed for fitting to Big Bag discharge stations to allow controlled product discharge from Flexible Intermediate Bulk Containers (FIBC).

The JS Iris valve can also be used for in-line or open discharge applications.


  • Body parts for the JS Iris Valve are manufactured from aluminium. The control ring is produced from zinc aluminium. Triggers are nylon and the fasteners are made from stainless steel

Valves for use around Big Bag discharge necks

Iris-Valves for Big Bags
Iris-Valves for Big Bags