The hot blast valve operates using levers and links to drive the disc in both opening and closing cycles, ensuring a reliable positive drive. Self-lubricating bronze bushings at the fulcrum points minimize friction, with grease fittings provided for external lubrication. Optionally, a centralized lubrication center enhances maintenance efficiency.

For motorized operation, the lever and link system connects directly to a Yosmite Power Drive or Limitorque actuator. Specifically designed for heavy-duty service, the motor features built-in torque protection and an overload relay for safety. In case of power failure, manual operation is possible using a handwheel or chainwheel with a declutch lever. The Yosmite Power Drive is compatible with other actuators of similar specifications, offering flexibility in application.

The superstructure and actuator are conveniently integrated with the valve, featuring standard equipment such as external limit switches and a captive counterweight. The valve is self-supporting within the line, eliminating the need for additional support structures or tie bars to withstand hot blast thrust.

• Fabricated Steel Body: Equipped with a cooling water system to control specific velocities.
• Vented Water Cooling System: Ensures continuous flow and eliminates steam pockets, allowing visual inspection of water flow through all body and seating ring cooling passages.
• Valve Disc: Features an exclusive spiral water cooling design for maximum heat transfer, with controlled water velocity.
• Cooling Stems & Hoses: Fastened to the drive structure, facilitating valve opening and closing.
• High Temperature Refractory Lining: Reinforced with corrosion-resistant rods in each flange neck for durability, factory-installed for simplified field installation.
• Testing Prior to Shipment: Each valve undergoes rigorous pressure and cycle testing, including torque and limit switch tests, ensuring quality and reliability upon installation.

The hot blast valve is shipped fully assembled and ready for field installation, designed for efficient operation and durability in demanding industrial environments.