Imperial Systems, Inc. recently announced that their Heavy Duty Pneumatic Slide Gates are engineered stronger and better. Heavy Duty Pneumatic Slide Gates are used to control air flow and conserve energy.

Larox Heavy Duty Knife Gate Valves are engineered to be used in tough environments with demanding media in the same industrial applications as company's well known pinch valves.

The AKO Armaturen & Separations GmbH from Trebur near Frankfurt a. M. produces valves and accessories for blocking off and ruling corrosive, fibrous and abrasive media.