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Manual Brass Ball Valves

Intended for high- and course-vacuum service.

  • Leak rate is less than 1x10-9 std. cc/sec. He.
  • Feature PTFE seats and fluorocarbon seals, both easily replaceable without demounting
  • When open, valves have an unrestricted bore, giving high gas conductance and making them useful in low-cost sample entry locks
  • When closed, main bore is pumped through a side vent hole
  • Available with terminations in female NPT, KF flanges, as well as weldable or braze sockets which are able to accept tubes from 1/4" to 2-1/8" diameter

NOTE: Ball valves can be very "stiff" upon initial operation, this is normal.

NOTE: Pneumatic actuation is available upon request. Please contact international@lesker.com or 1-412-387-9200 for pricing and availability.


Dimensional Drawings


Contact Us
To speak with someone directly, please call 1-412-387-9200 or email international@lesker.com.
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Ordering Table

(Click column headers to sort data)

Termination Dim A Dim B Bore Manual PartNo Price Add Item
VacuCADSM
Termination Dim A Dim B Bore Manual PartNo Price Add Item
VacuCADSM
KF50 Flange 4.97 3.58 1.50
--
BV-200QF50-B
$824.00
N/A
2-1/8" Tube Socket 5.00 3.58 1.50
--
BV-213TE-B
$824.00
N/A

 Notes:  Parts are in limited stock do to being discontinued. Shopping cart will notify you if you are over the limit available. Any issues please contact international@lesker.com or 1-412-387-9200.

Accessories Table

Type Description Manual PartNo Price Add
Item
Type Description Manual PartNo Price Add
Item
Clamp
KF16 Aluminum Cast
--
QF16-075-C
P.O.R.
Clamp
KF25 Aluminum Cast
--
QF25-100-C
P.O.R.
Clamp
KF40 Aluminum Cast
--
QF40-150-C
P.O.R.
Clamp
KF50 Aluminum Cast
--
QF50-200-C
P.O.R.
Fluorocarbon Centering Ring
For KF16 Flange
--
QF16-075-SRV
$6.70
Fluorocarbon Centering Ring
For KF25 Flange
--
QF25-100-SRV
$8.50
Fluorocarbon Centering Ring
For KF40 Flange
--
QF40-150-SRV
$13.00
Fluorocarbon Centering Ring
For KF50 Flange
--
QF50-200-SRV
$15.00

 

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