Manual 2-Way Ball Valve

ANCORP’s ball valves consist of a body, stem, ball, and two end caps machined from corrosive resistant 316L stainless steel. Fluoroelastomers are used to seal the stem and end caps from atmosphere while the PTFE seats cold flow around the ball to isolate the process when closed. The valve is opened and closed manually or pneumatically by ¼ turn, quick actuation. The PTFE sealing surface helps to protect it from deposition, maintaining a clean dynamic seal to prevent failure due to contamination.


The corrosive resistant, fast actuating design of ANCORP’s vacuum ball valves makes them ideal for isolating reactors, traps, and scrubbers on vacuum process tools.


  • Vacuum rating of 1×10-8 torr
  • Max Temp w/Standard FKM -26°C to 150°C (-15°F to 302°F)
    Higher operating temperatures are possible with alternate o-ring and grease options. Contact our sales department for more information.
  • Manufactured from 316L stainless steel
  • High conductance; straight through flow
  • Particulate resistant ball/seat design lengthens time between maintenance cycles
  • Service valve without removal from the system
  • Watch our Manual 2-Way High Vacuum Ball Valve Maintenance Instructions video:

Service Kits and Accessories

*Dimensions are in inches unless otherwise specified

Part IDReference NumberA B C D E F End Cap Ball Size End Cap Tube Size Conductance (L/s) Fig. 3D CADDrawingUnit PriceIn StockQty, Add To Cart
Part ID3000028Reference NumberB4075-QF16A 3.47B 2.7C 1.90D 4.6E 2.0F 1.7End Cap QF16Ball Size 0.56End Cap Tube Size 3/4 in. O.D.Conductance (L/s) 5Fig. 13D CADLoginDrawingLoginUnit Price$295.00Contact
Part ID3000030Reference NumberC4100-QF25A 3.92B 3.7C 2.5D 5.5E 2.4F 2.5End Cap QF25Ball Size 0.81End Cap Tube Size 1 in. O.D.Conductance (L/s) 13Fig. 13D CADLoginDrawingLoginUnit Price$425.00Contact
Part ID3000032Reference NumberD4150-QF40A 4.65B 4.5C 3.5D 8.25E 3.2F 2.9End Cap QF40Ball Size 1.25End Cap Tube Size 1 1/2 in. O.D.Conductance (L/s) 35Fig. 23D CADLoginDrawingLoginUnit Price$710.00Contact
Part ID3000035Reference NumberE4200-QF50A 4.97B 4.9C 3.9D 8.25E 3.5F 3.1End Cap QF50Ball Size 1.50End Cap Tube Size 2 in. O.D.Conductance (L/s) 57Fig. 23D CADLoginDrawingLoginUnit Price$820.00Contact
Part ID3002035Reference NumberF4200-QF50A 6.31B 5.4C 4.3D 8.25E 4.1F 3.4End Cap QF50Ball Size 1.87End Cap Tube Size 2 in. O.D.Conductance (L/s) 87Fig. 23D CADLoginDrawingLoginUnit Price$1,250.00Contact