DeZURIK LA-Series Actuators
LA-Series Actuators are designed for use on large 30–72" (750–1800mm) DeZURIK AWWA Butterfly Valves. The LA-Series Actuator meets the requirements of AWWA C504 standards. The link-arm mechanism allows the LA-Series Actuator to provide characterized closure that slows valve travel and increases torque as the disc comes into the seat. The actuator is self-locking, maintaining valve position under varying flow conditions.
The LA-Series actuators feature an input torque capability of 450 foot pounds against the open and closed position stops as standard. An optional spur gear provides a 2:1 mechanical advantage while maintaining an input torque capability of 300 foot pounds against the stops. The spur gear slows closing of the valve, minimizing the possibility of water hammer.
LA-Series Actuators Specifications
30" - 54" (750 - 1350mm)
MATERIALS OF CONSTRUCTION:
Cast-iron housing in buriable or weatherproof construction. One-piece yoke machined from a ductile iron casting. Carbon Steel input shaft and aluminum bronze yoke bearing. Buried service actuators are grease filled per AWWA C504.
Capability of 450 foot pounds against the open and closed position stops as standard.
Hand wheel, chain wheel or 2" (50mm) square nut options.