Siemens Building Technology 426855048 Crank Assembly

The Siemens Building Technology 426855048 Crank Assembly is a critical field-service component designed specifically for manual override functionality in SKD series valve actuators. As a veteran in the field, you know that when an automated system fails or requires commissioning, a reliable manual override kit is the difference between a controlled environment and a complete system shutdown. This assembly allows technicians to manually position Flowrite 599 series valves, ensuring precise mechanical control over 20mm stroke applications even during power loss or control signal issues.

Engineered for high-durability performance in demanding mechanical rooms, this replacement manual override assembly is built to withstand the rigors of frequent use. It is compatible with a wide range of Siemens electro-hydraulic actuators, including those in the SKD60, SKD62, and SKD82 families. By integrating this genuine HVAC actuator part, you maintain the technical integrity of the building automation system and ensure that your 2-port and 3-port valves remain operational during critical maintenance windows.

• Precise Manual Control: Enables the manual stroking of SKD series actuators to any position from 0% to 100% for easy testing and balancing.
• Universal Compatibility: Specifically designed for Siemens Building Technology actuators used with Flowrite 599 Series valves.
• Field-Ready Durability: Robust construction ensures the assembly handles the high torque required for manual override without stripping or failure.
• Streamlined Installation: Direct-fit design allows for rapid field replacement, reducing labor time and system downtime.

Is this crank compatible with SKB or SKC series actuators?
No, this specific part number is optimized for the SKD series. For SKB or SKC actuators, you must use the 426855108 assembly to ensure correct fitment and torque transfer.

Can I leave the crank in the manual position indefinitely?
While the 426855048 manual override is designed to hold position, the actuator must be returned to "Automatic" mode (turning the crank counter-clockwise to the end stop) for the building control system to resume proper modulation.

Does this kit include the mounting hardware?
This assembly is a complete manual override kit designed for direct integration into existing Siemens SKD housing units.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.