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Manual SS 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


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

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Accessories Table

Type Description Manual Part Number Price In Stock Add
Item
Type Description Manual Part Number Price In Stock Add
Item
Clamp
KF16 Aluminum Cast Clamp
--
QF16-075-C
P.O.R.
In Stock
Clamp
KF25 Aluminum Cast Clamp
--
QF25-100-C
P.O.R.
In Stock
Clamp
KF40 Aluminum Cast Clamp
--
QF40-150-C
P.O.R.
In Stock
Clamp
KF50 Aluminum Cast Clamp
--
QF50-200-C
P.O.R.
In Stock
Fluorocarbon Centering Ring
For KF16 Flange
--
QF16-075-SRV
$6.75
In Stock
Fluorocarbon Centering Ring
For KF25 Flange
--
QF25-100-SRV
$8.55
In Stock
Fluorocarbon Centering Ring
For KF40 Flange
--
QF40-150-SRV
$13.10
In Stock
Fluorocarbon Centering Ring
For KF50 Flange
--
QF50-200-SRV
$15.10
In Stock