Parker Autoclave's Y Series yoke valves are a non-rotating rising stem design, working pressures to 50,000 psi (3447 bar). These yoke valves are extra heavy duty, plant grade instrument valves for industrial and severe service applications. Yoke valves feature low closing torque for ease of operation. The tubing size is 9/16” to 1”. Tubing connections utilize the Parker Autoclave cone and thread design. Standard high pressure needle valves with PTFE packing may be operated from 0°F (-17.8°C) to 450°F (232°C). High temperature packing is available for service 600°F (316°C). These high pressure needle valves have adjustable packing below the threads to eliminate the media from contacting the power threads, and causing galling during actuation

Along with their many features these valves provide dependable and trouble free service in wide variety of applications.

Markets:
• Oil and Gas
• Petrochemical
• Chemical
• Power


Features/Benefits:
• Tubing sizes from 9/16” to 1”.
• Rising stem/barstock body design.
• Non-rotating stem prevents stem/seat galling.
• Metal-to-metal seating achieves bubble-tight shutoff, longer stem/seat life in abrasive flow, greater durability for repeated on/off cycles and excellent corrosion resistance. Valves
• PTFE encapsulated packing provides dependable stem and body sealing.
• Stem sleeve and packing gland materials have been selected to achieve extended thread cycle life and reduced handle torque.
• Choice of Vee or Regulating stem tips.
• Available in two body patterns.
• Optional materials for cryogenic and other applications.      

Applications:
• General Instrumentation Systems
• High Pressure Skids
• High Pressure Fluid Handling Systems