Representative Image

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

SPEEDI VALVE 1

Drawing: SPEEDI VALVE 1

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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

VacuCAD^SM

Part Number

Price

In Stock

Add Item

Flange
Size

Dim A

Dim B

Dim C

Dim D

Dim E

Thread

Manual

VacuCAD^SM

Part Number

Price

In Stock

Add Item

KF10

2.79 (Open)

2.52 (Closed)

1.34

1.65

2.36

4xM4x8

N/A

C33105000

$155.00

KF16

2.79 (Open)

2.52 (Closed)

1.34

1.65

3.15

4xM4x8

N/A

C33205000

$195.00

KF25

4.84 (Open)

4.37 (Closed)

2.01

2.64

3.94

4xM4x12

N/A

C33305000

$225.00

KF40

5.12 (Open)

—

4.13

5.12

—

N/A

C33405000

$527.00

Flange
Size

Dim A

Dim B

Dim C

Dim D

Dim E

Thread

Manual

VacuCAD^SM

Part Number

Price

In Stock

Add Item

Flange
Size

Dim A

Dim B

Dim C

Dim D

Dim E

Thread

Manual

VacuCAD^SM

Part Number

Price

In Stock

Add Item

KF10

2.79 (Open)

2.52 (Closed)

1.34

1.65

2.36

4xM4x8

N/A

C33105000

$155.00

KF16

2.79 (Open)

2.52 (Closed)

1.34

1.65

3.15

4xM4x8

N/A

C33205000

$195.00

KF25

4.84 (Open)

4.37 (Closed)

2.01

2.64

3.94

4xM4x12

N/A

C33305000

$225.00

KF40

5.12 (Open)

—

4.13

5.12

—

N/A

C33405000

$527.00

Accessories Table

Type	Description	Manual	Part Number	Price	In Stock	Add Item
Type	Description	Manual	Part Number	Price	In Stock	Add Item
Buna-N Centering Ring	For KF10 Flange	--	QF10-050-ARB	$3.85
Buna-N Centering Ring	For KF16 Flange	--	QF16-075-ARB	$3.25
Buna-N Centering Ring	For KF25 Flange	--	QF25-100-ARB	$4.35
Buna-N Centering Ring	For KF40 Flange	--	QF40-150-ARB	$6.45
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.