Quick Set (QS Series) Medium Pressure Needle Valves

Series Needle Valves with Pressures to 15,000 psi (1034 bar)


Since 1945 Parker Autoclave Engineers has designed and built premium quality valves, fittings and tubing. Parker Autoclave Engineers QS series needle valves are designed for operation to 15,000 psi (1,034 bar) in all sizes. Along with their many features these valves provide dependable and trouble free service in wide variety of applications.


  • Tubing sizes from 1/4" to 1".

  • Revolutionary Compressionn Ferrule allows working pressures to 15,000 psi (1034 bar) in all tubing sizes.

  • Non-rotating stem prevents stem/seat galling

  • Anti-galling molybdenum disulfide coated gland nuts.

  • Gland nut positioning mark for assembly.

  • Connection weep holes for safety and leak detection

  • Metal-to-metal seating achieves bubble-tight shut-off, longer stem/seat life in abrasive flow, greater durability for repeated on/off cycles and excellent corrosion resistance.

  • Stem sleeve and packing gland material have been selected to achieve extended thread cycle life and reduced handle torque.

  • Choice of Vee or Regulating stem tip.

  • Available in two body patterns.


Parker Autoclave Engineers valves are used in many applications such as the chemical/petrochemical, research, and oil and gas industries. The Parker Autoclave Engineers QS Series line utilizes a revolutionary single ferrule compression sleeve design for fast and easy installation. These valves are complemented by a complete line of fittings, tubing and accessories.

Quick Set Needle Valve