Manual High Conductance Ball Valve


  • Vacuum rated to 1×10-8 Torr
  • Machined from solid 316L stainless steel
  • Standard seal: fluorelastomer (other options available)


  • Two-piece body: One less potential leak path & huge maintenance cost reductions when using perfluorelastomers
  • Smooth profile: Maximizes heat transfer from heating components
  • Minimized overall length and slimmer profile: Increases conductance and reduces weight and footprint
  • Fully bored ball port: Maximizes conductance with straight-through, unimpeded flow
  • Extra space between body & handle brackets: Minimum of 5/8” clearance allows more room for heating components
  • Integrated handle lock: Prevents accidental opening/closing. Lock out-Tag out ready

Service Kits and Accessories

Service kits are available for all high conductance ball valves.
Kit includes:

  • (1) stem o-ring
  • (1) body o-ring
  • (2) Teflon seats
  • (1) bottom stem bearing
  • (1) top stem bearing
  • (1) wave spring washer
  • (1) spiral retaining ring

*Dimensions are in inches unless otherwise specified

Part IDReference NumberA B C D E F End Cap Description Ball Port Size Conductance (L/s) End Cap Tube O.D. 3D CADDrawingUnit PriceIn StockQty, Add To Cart
Part ID3007210Reference NumberHC4250-LF63A 5.10B 7.40C 2.80D 15.10E 5.40F 4.70End Cap LF63Description 2.5" High Conductance Ball Valve - ManualBall Port Size 2.375Conductance (L/s) 205End Cap Tube O.D. 2.503D CADLoginDrawingLoginUnit Price$3,000.00Contact
Part ID3007310Reference NumberHC4300-LF80A 5.35B 8C 2.80D 15.10E 6F 5End Cap LF80Description 3" High Conductance Ball Valve - ManualBall Port Size 2.88Conductance (L/s) 347End Cap Tube O.D. 33D CADLoginDrawingLoginUnit Price$3,500.00Contact
Part ID3007410Reference NumberHC4400-LF100A 6.86B 9.40C 2.80D 15.10E 7.40F 5.70End Cap LF100Description 4" High Conductance Ball Valve - ManualBall Port Size 3.875Conductance (L/s) 657End Cap Tube O.D. 43D CADLoginDrawingLoginUnit Price$4,500.00Contact