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We Make Valve Automation Easy
We Make Valve Automation Easy
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21 Series Stainless Steel Ball Valves

2-piece Body with NPT Connections (1/4" to 3")



The 21 series ball valves are full port, 316 stainless steel, NPT threaded manual ball valves. The valves are silicone free. They are equipped with a manual handle with a locking device.


Manual SS Ball Valve Construction

Features & Benefits

  • Silicone Free
  • Full Port for unobstructed flow
  • Investment cast 2-piece body
  • Blow-out proof stem
  • Compact assembly
  • Lockable lever



  • Silicone Free
  • Body: 351 stainless steel
  • Ball & Stem: 316 stainless steel
  • Seats: PTFE
  • Stem Seals: PTFE
  • Stem Nut & Washer: 304 Stainless Steel
  • Handle & Locking Device: 304 Stainless Steel
End Connections
  • NPT Threaded (1/4" to 2")
Temperature Range:
  • -20 to 400°F
Pressure Range:
  • 1000 PSIG (up to 100°F)
  • Pressure / Temperature Curve

Available Actuators

Typical Applications

  • Air Drying Equipment
  • Sterilizers
  • Autoclaves
  • Pollution Control Equipment
  • Process Control Applications
  • Laundry Equipment
  • Textile Dyeing & Drying
  • Bottling & Dispensing Equipment
  • Ink & Paint Dispensing
  • Custom Ball Valve Assemblies

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Please contact us to verify any information that is critical to your application.