Autoclave Engineer’s Needle Valves (SM Series)

by Parker Hannifin

  • Parker Autoclave Engineers SM Series needle valves are designed specifically for use with matching orifice medium pressure cone & thread fittings and tubing for the most efficient flow path possible using cone & thread style connections.
  • They are manufactured using high tensile strength UNS S31600/S31603 cold worked 316/316L Stainless Steel material as standard for 700 bar (10,152 psi) MAWP.
  • EC-79 Certified
  • Available in sizes from 1/4” to 1”
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Parker’s Autoclave Engineer’s SM Needle Valves (SM Series)

  • Parker Autoclave’s SM Series needle valves are designed with large ports for high flow applications. These valves have a non-rotating rising stem bar stock design with working pressures to 20,000 psi (1379 bar). The cone and thread connections utilize Parker Autoclave tubing with sizes from 1/4″ to 1″. 
  • 316 stainless steel construction is the standard material with other options available.  
  • Along with their many features these valves provide dependable and trouble free service in wide variety of applications. 
  • Largest-port valves available for medium pressure applications. 
  • Tubing sizes available from 1/4” to 1”. 
  • Rising stem/barstock body design. 
  • Non-rotating stem prevents stem/seat galling. 
  • New one piece stem design permits ease of assembly and packing replacement. 
  • 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. 
  • 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 tip. 
  • Available in five body patterns.       
  • EC-79 Certified

See our needle valves guide with all variants

  • The SM series needle valves are available in different variants. For details see our SM series guide – click here .
  • Introduction: SM Series Valves are designed specifically for use with matching orifice Medium Pressure Cone & Thread Fittings and Tubing for the most efficient flow path possible using Cone & Thread style connections.
  • Features: The Parker’s SM Series Needle valve has been specifically designed for use with Medium Pressure cold worked 316/316L stainless steel tubing as standard
  • Materials: UNS S31600/ S31603, CW 316/316L Stainless Steel body construction as standard. See Technical brochure for additional material details
  • Pressure: Designed for a maximum of 20,000 psi MAWP using high tensile strength UNS S31600/S31603 cold worked 316/316L Stainless Steel material as standard, we include larger ID tubing rated to 15,000 psi (15SM valves) for even higher flow rate capability.
  • Stem: Most Parker Autoclave Engineers’ valves are available with either Vee (on-off) or Regulating (Flow Control) in our standard valve body seat or with our optional replaceable seat.
  • Options: Parker’s SM Series Needle valve are available with different valve options a based on the user requirement as listed below.
    • Pneumatic Valve actuators: The need to control process and vent valves from a remote location makes air operated valves a vital component to many processing operations. Fore more details see the technical brochure.
    • Electric Valve Actuators: Parker SM series valve with The Electrically Actuated Shut-off/Flow Regulating Actuator (FRC Series) is available for most of our SM Series Valves through 9/16″ tubing size and full working pressure. Fore more details see the technical brochure.
    • High / Low temperature Extension: High Temperature (Over  800°F (427°C)) and Low Temperature (under -100°F (-73°C))
    • ES Stem Extender: Stem extenders are offered for High and Low temperature operation or to extend through panel or barricade
    • Needle Valve Calm Shell Handle Lockout: Clam Shell Handle locks are provided to lockout valves in open or closed position preventing unauthorized personnel from actuating valve during shutdown or emergency situations.
    • Valve Packing Options: Standard Parker Autoclave Engineers valves with PTFE packing may be operated from 0°F (-18°C) to 450°F (232°C). High and Cryogenic temperature packing and/or extended stuffing box are available for service from -423°F (-252°C) to 1200°F (650°C) by adding the following suffixes to catalog order number, for more details refer the data sheet.

Application areas

  • On-board hydrogen-powered vehicles  
  • General hydrogen use 
  • Medium pressure skid panels 
  • Chemical injection skids 
  • Medium pressure fluid handling systems 

Contact us!

  •  Contact us and tell us about your requirements. We will identify the products that provide the performance and safety you expect.
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Parker's Autoclave Engineers SM Series Needle Valve

Technical Guide

Autoclave Manual valve series EC 79 Certification

EC 79

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      Parker Hannifin

      Parker Hannifin is a Fortune 250 global leader in motion and control technologies. For more than a century the company has been enabling engineering breakthroughs that lead to a better tomorrow. Parker is supporting the global decarbonisation efforts through a broad range of solutions, hydrogen-compatible components and systems enabling safe and efficient operation for a variety of applications.

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