Double-flange butterfly valve with identical flanges top and bottom, for bolting directly between two flanged sections — silo cone to rotary valve, or in-line in a pneumatic conveying duct. The pre-stressed elastomer seal gives reliable shut-off on dry powders without the seat wear you get from abrasive product crossing a metal seat. Die-cast aluminium construction keeps the weight low for a valve of this bore. Fits the full WAM actuator range, all interchangeable on the same body.
