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• Direct mounting to all Keystone butterfly valves and ball valves.
• Valve connection compatible with Keystone (imperial and metric) and ISO 5211.
• Double Rack and Pinion design nullifies side loads on the pinion shaft, minimizing bearing wear and extending life.
• Optimized product flow with standard mounted travel stops for valve position adjustment in open and close position (+/- 5° at each end).
• Optional "Linear Travel Stops" to further reduce the angles of rotation are available on request.
• Anodized aluminium body with electrostatic powder coating (ESPC) finish provides durable protection against corrosive environments.
• Double acting and spring return versions available for cost effective and safe operation.
• Up to 12 individual springs offer flexible torque range for both ball as butterfly valves.
• Pre-compressed spring design and anti-blowout drive pinion means safe maintenance and operation.