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Vacuum Valves > Diaphragm Valves (Al)

Manual Al Diaphragm Valves (Buna-N)

Offer high tolerance for dirty systems at a relatively low cost.

  • Maximum leak rate of <1 x 10-6 mbar ls-1
  • Works best in the pressure range 10,000 - 1 x 10-5 mbar
  • Withstands bakeouts to 60° C
  • Buna-N and Fluorocarbon diaphragm versions are available

Techniques, such as Finite Element Analysis, are used to optimize the design of these valves, while testing each valve with a helium mass spectrometer ensures it meets stringent specification standards.

NOTE: The KF40 versions are available for pipeline mounting only and the smaller sizes can be panel mounted using the tapped holes provided.


Dimensional Drawings


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Ordering Table

(Click column headers to sort data)

Flange
Size
Dim A Dim B Dim C Dim D Dim E Thread Manual PartNo Price Add Item
VacuCADSM
Flange
Size
Dim A Dim B Dim C Dim D Dim E Thread Manual PartNo Price Add Item
VacuCADSM
KF10 2.79 (71) (Open) 2.52 (64) (Closed) 1.34 (34) 1.65 (42) 2.36 (60) 4xM4x8
--
ED-C33105000
$151.00
N/A
KF16 2.79 (71) (Open) 2.52 (64) (Closed) 1.34 (34) 1.65 (42) 3.15 (80) 4xM4x8
--
ED-C33205000
$186.00
N/A
KF25 4.84 (123) (Open) 4.37 (111) (Closed) 2.01 (51) 2.64 (67) 3.94 (100) 4xM4x12
--
ED-C33305000
$215.00
N/A
KF40 5.12 (130) (Open) 4.13 (105) 5.12 (130)
--
ED-C33405000
$527.00
N/A

Accessories Table

Type Description Manual PartNo Price Add
Item
Type Description Manual PartNo Price Add
Item
Buna-N Centering Ring
For KF10 Flange
--
QF10-050-ARB
$3.80
Buna-N Centering Ring
For KF16 Flange
--
QF16-075-ARB
$3.20
Buna-N Centering Ring
For KF25 Flange
--
QF25-100-ARB
$4.30
Buna-N Centering Ring
For KF40 Flange
--
QF40-150-ARB
$6.40
Clamp
For KF10 and KF16 Flange
--
QF16-075-C
P.O.R.
Clamp
For KF25 Flange
--
QF25-100-C
P.O.R.
Clamp
For KF40 Flange
--
QF40-150-C
P.O.R.

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