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Medium Pressure Valve Features:
  • Compression Sleeve to 15000 psi (1034 bar).
  • Tubing sizes available from 1/4” to 3/4”.
  • Rising stem/barstock body design.
  • 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-tightshut-off,longer stem/seat life in abrasive flow, greater durability for repeated on/off cycles and excellent corrosion resistance.
  • PTFE (Teflon) 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 tip.
  • Available in two body patterns.
Autoclave valves are complemented by a complete line of fittings, tubing, check valves and line filters. The QS Series uses Autoclave’s Quick Set compression sleeve design, providing fast easy make-up and reliable bubble-tight performance in liquid or gas service.

QS Series valves are furnished complete with connection components, unless otherwise specified.

Panel mounting drill size: 0.22" all valves.
All dimensions for reference only and subject to change.
For prompt service 'Autoclave stocks select products' Consult factory.
All general terms and conditions of sale, including limitations of our liability, apply to all products and services sold.
Unit of Measure

Pressure Rating at Room Temperature

 N/A 15000 psi10342 bar

Outside Diameter Tube

 N/A 3/8 in9.53 mm

Stem Type

 N/A REG

Valve Pattern

 N/A 2-Way Straight

Connection Type

 N/A QS 375

Orifice Diameter

 N/A 0.219 in5.56 mm

A - Width

 N/A 2.00 in50.80 mm

B - Length

 N/A 1.00 in25.40 mm

C - Length

 N/A 0.47 in11.94 mm

D - Height

 N/A 1.62 in41.15 mm

D1 - Height

 N/A 1.19 in30.23 mm

E - Height

 N/A 2.00 in50.80 mm

F - Length

 N/A 3.00 in76.20 mm

G - Packing Gland Mounting Hole Drill Size

 N/A 0.75 in19.05 mm

G1 - Bracket Mounting Hole Size

 N/A 0.22 in5.59 mm

H - Height

 N/A 4.63 in117.60 mm

M - Length

 N/A 0.62 in15.75 mm

N - Height

 N/A 0.38 in9.65 mm

Block Thickness

 N/A 0.81 in20.57 mm

Tubing Engagement Depth

 N/A 0.69 in17.6 mm

Rated Cv

 N/A 0.75

N/A Extreme Temperatures
Standard Autoclave valves with Teflon packing may be operated to 450°F (232°C).High temperature packing and/or extended stuffing box are available for service from 0°F (-17.8°C) to 650°F (343°C) by adding the following suffixes to catalog order number.†
TG - standard valve with Teflon glass packing to 600°F (316°C).
GY - standard valve with graphite braided yarn packing to 650°F (343°C).

†Autoclave Engineers does not recommend compression sleeve connections below 0°F (-17.8°C) or above 650°F (343°C). For additional valve options, contact your Sales Representative.

N/A Repair Kits:
add "R" to the front of valve catalog number for proper repair kit. (Example: R15QS4071)

Valve Bodies:
Valve bodies are available. Order using the eight (8) digit part number found on the valve drawing or contact your Sales Representative for information.

Consult your Autoclave representative for pricing on repair kits and valve bodies.