Representative Image

ASA HV Flanges–Fixed Grooved

ASA flanges, adapted decades ago from 150# steam-pipe flanges, are simple, sexed vacuum seals—one flange is grooved to accept an o-ring while the mating flange is smooth.

ASA flanges are limited (by the o-ring's properties) to applications with temperatures between ~0° C and 120-180° C and pressure from atmosphere to ~10^-7 torr or mbar. These flanges are sized by the connecting pipe's nominal I.D. in inches. The normal range is: 1", 1.5", 2", 3", 4", 6", 8", and 10". They have large diameter bolt holes through the rim; consequently, for any given tube diameter, ASA flanges have much larger O.D.s than other flange types.

Note:

When buying ASA flanged fittings and components, always compare dimensions carefully. When purchasing flanges to mate to an existing item, have that item's flange O.D., I.D., number of bolt holes, bolt circle diameter, and the handy o-ring groove I.D. for quick reference.

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Ordering Table

(Click column headers to sort data)

Flange Size/OD

Type

Flange Material

Drawing

Bore

Bolt Hole Dia.

# of Bolt Holes

Note

Dim A

Dim B

Dim C

Dim D

Dim E

Dim F

Description

VacuCAD^SM

Part Number

Price

In Stock

Add To Cart

Flange Size/OD

Type

Flange Material

Drawing

Bore

Bolt Hole Dia.

# of Bolt Holes

Note

Dim A

Dim B

Dim C

Dim D

Dim E

Dim F

Description

VacuCAD^SM

Part Number

Price

In Stock

Add To Cart

ASA 6 (11.00" OD)

Fixed Grooved

304L SS

Blank

0.81

—

0.75

Blank

—

9.5

ASA FLG,SS,FXD,11"OD,BLANK,(8) .812"BH,9.5"BC,O-R GRV

(please log in)

ASA1100X00G

$336.75

ASA 6 (11.00" OD)

Fixed Grooved

304L SS

6.02

0.81

—

0.75

6.02

5.92

0.38

9.5

ASA FLG,SS,FXD,11"OD,6.02"C- BORE,(8).812"BH,9.5"BC,O-R GRV

(please log in)

ASA1100X60G

$368.85

ASA 6 (11.00" OD)

Fixed Grooved

304L SS

8.02

0.81

—

0.75

8.02

7.88

0.38

9.5

ASA FLG,SS,FXD,11"OD,8.02"C- BORE,(8).812"BH,9.5"BC,O-R GRV

(please log in)

ASA1100X80G

$525.00

ASA 8 (13.50" OD)

Fixed Grooved

304L SS

Blank

0.81

—

13.5

0.75

Blank

—

11.75

ASA FLG,SS,FXD,13.50"OD,BLANK, (8).812"BH,11.75"BC,O-R GRV

(please log in)

ASA1350X00G

$610.00

ASA 8 (13.50" OD)

Fixed Grooved

304L SS

10.02

0.81

—

13.5

0.75

10.02

9.88

0.38

11.75

ASA FLG,SS,FXD,13.50"OD,10.02" CBORE,(8).812BH,11.75BC,OR GRV

(please log in)

ASA1350X10G

$485.95

ASA 8 (13.50" OD)

Fixed Grooved

304L SS

8.02

0.81

—

13.5

0.75

8.02

7.88

0.38

11.75

ASA FLG,SS,FXD,13.50"OD,8.02"C BORE,(8).812BH,11.75BC,O-R GRV

(please log in)

ASA1350X80G

$565.00

ASA 10 (16.00" OD)

Fixed Grooved

304L SS

Blank

0.81

—

0.75

Blank

—

14.25

ASA FLG,SS,FXD,16"OD,BLANK, (12).812"BH,14.25"BC,O-R GRV

(please log in)

ASA1600X00G

$822.70

ASA 10 (16.00" OD)

Fixed Grooved

304L SS

10.02

0.81

—

0.75

10.02

9.88

0.38

14.25

ASA FLG,SS,FXD,16"OD,10.02"C- BRE,(12).812"BH,14.25BC,O-RGRV

(please log in)

ASA1600X10G

$822.70

ASA 10 (16.00" OD)

Fixed Grooved

304L SS

12.02

0.81

—

0.75

12.02

11.88

0.38

14.25

ASA FLG,SS,FXD,16"OD,12.02"C- BORE,W/O-RING GROOVE

(please log in)

ASA1600X12G

$860.00

ASA 1 (4.25" OD)

Fixed Grooved

304L SS

Blank

0.63

—

4.25

0.5

Blank

—

3.13

ASA FLG,SS,FXD,4.25"OD,BLANK, (4).625"BH,3.125"BC,O-R GRV

(please log in)

ASA425X00G

$93.25

ASA 1 (4.25" OD)

Fixed Grooved

304L SS

1.01

0.63

—

4.25

0.5

1.01

0.94

0.25

3.125

ASA FLG,SS,FXD,4.25"OD,1.01"C- BORE,(4).625BH,3.125BC,O-R GRV

(please log in)

ASA425X10G

$149.50

ASA 1 (4.25" OD)

Fixed Grooved

304L SS

1.51

0.63

—

4.25

0.5

1.51

1.44

0.25

3.13

ASA FLG,SS,FXD,4.25"OD,1.51"C- BORE,(4).625BH,3.125BC,O-R GRV

(please log in)

ASA425X15G

$98.45

ASA 1.5 (5.00" OD)

Fixed Grooved

304L SS

Blank

0.63

—

0.5

Blank

—

3.88

ASA FLG,SS,FXD,5"OD,BLANK,(4) .625"BH,3.88"BC,O-R GRV

(please log in)

ASA500X00G

$118.15

ASA 1.5 (5.00" OD)

Fixed Grooved

304L SS

1.51

0.63

—

0.5

1.51

1.44

0.25

3.88

ASA FLG,SS,FXD,5"OD,1.51"CBORE (4).625"BH,3.88"BC,O-R GRV

(please log in)

ASA500X15G

$137.85

ASA 1.5 (5.00" OD)

Fixed Grooved

304L SS

2.01

0.63

—

0.5

2.01

1.94

0.25

3.88

ASA FLG,SS,FXD,5"OD,2.01"CBORE (4).625"BH,3.88"BC,O-R GRV

(please log in)

ASA500X20G

$133.65

ASA 1.5 (5.00" OD)

Fixed Grooved

304L SS

2.51

0.63

—

0.5

2.51

2.44

0.25

3.88

ASA FLG,SS,FXD,5"OD,2.51"CBORE (4).625"BH,3.88"BC,O-R GRV

(please log in)

ASA500X25G

$260.00

ASA 2 (6.00" OD)

Fixed Grooved

304L SS

Blank

0.75

—

0.5

Blank

—

4.75

ASA FLG,SS,FXD,6"OD,BLANK,(4) .75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X00G

$138.85

ASA 2 (6.00" OD)

Fixed Grooved

304L SS

2.01

0.75

—

0.5

2.01

1.94

0.25

4.75

ASA FLG,SS,FXD,6"OD,2.01"CBORE (4).75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X20G

$155.40

ASA 2 (6.00" OD)

Fixed Grooved

304L SS

2.51

0.75

—

0.5

2.51

2.44

0.25

4.75

ASA FLG,SS,FXD,6"OD,2.51"CBORE (4).75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X25G

$289.50

ASA 2 (6.00" OD)

Fixed Grooved

304L SS

3.01

0.75

—

0.5

3.01

2.94

0.25

4.75

ASA FLG,SS,FXD,6"OD,3.01"CBORE (4).75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X30G

$150.25

ASA 2 (6.00" OD)

Fixed Grooved

304L SS

3.51

0.75

0.5

3.51

3.44

0.25

4.75

ASA FLG,SS,FXD,6"OD,3.51"CBORE (4).75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X35G

$75.00

ASA 3 (7.50" OD)

Fixed Grooved

304L SS

Blank

0.75

—

7.5

0.5

Blank

—

ASA FLG,SS,FXD,7.50"OD,BLANK, (4).75"BH,6"BC,O-R GRV

(please log in)

ASA750X00G

$182.35

ASA 3 (7.50" OD)

Fixed Grooved

304L SS

3.01

0.75

—

7.5

0.5

3.01

2.94

0.25

ASA FLG,SS,FXD,7.50"OD,3.01"C- BORE,(4).75"BH,6"BC,O-R GRV

(please log in)

ASA750X30G

$515.00

ASA 3 (7.50" OD)

Fixed Grooved

304L SS

3.51

0.75

—

7.5

0.5

3.51

3.44

0.25

ASA FLG,SS,FXD,7.50"OD,3.51"C- BORE,(4).75"BH,6"BC,O-R GRV

(please log in)

ASA750X35G

$229.00

ASA 3 (7.50" OD)

Fixed Grooved

304L SS

4.01

0.75

—

7.5

0.5

4.01

3.92

0.25

ASA FLG,SS,FXD,7.50"OD,4.01"C- BORE,(4).75"BH,6"BC,O-R GRV

(please log in)

ASA750X40G

$197.95

ASA 4 (9.00" OD)

Fixed Grooved

304L SS

Blank

0.75

—

0.5

Blank

—

7.5

ASA FLG,SS,FXD,9"OD,BLANK,(8) .75"BH,7.5"BC,O-R GRV

(please log in)

ASA900X00G

$213.45

ASA 4 (9.00" OD)

Fixed Grooved

304L SS

4.01

0.75

—

0.5

4.01

3.92

0.25

7.5

ASA FLG,SS,FXD,9"OD,4.01"CBORE (8).75"BH,7.5"BC,O-R GRV

(please log in)

ASA900X40G

$224.85

ASA 4 (9.00" OD)

Fixed Grooved

304L SS

6.02

0.75

—

0.5

6.02

5.92

0.25

7.5

ASA FLG,SS,FXD,9"OD,6.02"CBORE (8).75"BH,7.5"BC,O-R GRV

(please log in)

ASA900X60G

$224.85

Flange Size/OD

Type

Flange Material

Drawing

Bore

Bolt Hole Dia.

# of Bolt Holes

Note

Dim A

Dim B

Dim C

Dim D

Dim E

Dim F

Description

VacuCAD^SM

Part Number

Price

In Stock

Add To Cart

Flange Size/OD

Type

Flange Material

Drawing

Bore

Bolt Hole Dia.

# of Bolt Holes

Note

Dim A

Dim B

Dim C

Dim D

Dim E

Dim F

Description

VacuCAD^SM

Part Number

Price

In Stock

Add To Cart

ASA 6 (279.40 mm OD)

Fixed Grooved

304L SS

Blank

20.6

—

279.4

19.1

Blank

—

241.3

ASA FLG,SS,FXD,11"OD,BLANK,(8) .812"BH,9.5"BC,O-R GRV

(please log in)

ASA1100X00G

$336.75

ASA 6 (279.40 mm OD)

Fixed Grooved

304L SS

152.9

20.6

—

279.4

19.1

152.9

150.4

9.7

241.3

ASA FLG,SS,FXD,11"OD,6.02"C- BORE,(8).812"BH,9.5"BC,O-R GRV

(please log in)

ASA1100X60G

$368.85

ASA 6 (279.40 mm OD)

Fixed Grooved

304L SS

203.708

20.6

—

279.4

19.1

203.7

200.2

9.7

241.3

ASA FLG,SS,FXD,11"OD,8.02"C- BORE,(8).812"BH,9.5"BC,O-R GRV

(please log in)

ASA1100X80G

$525.00

ASA 8 (342.90 mm OD)

Fixed Grooved

304L SS

Blank

20.6

—

342.9

19.1

Blank

—

298.5

ASA FLG,SS,FXD,13.50"OD,BLANK, (8).812"BH,11.75"BC,O-R GRV

(please log in)

ASA1350X00G

$610.00

ASA 8 (342.90 mm OD)

Fixed Grooved

304L SS

254.5

20.6

—

342.9

19.1

254.5

251

9.7

298.5

ASA FLG,SS,FXD,13.50"OD,10.02" CBORE,(8).812BH,11.75BC,OR GRV

(please log in)

ASA1350X10G

$485.95

ASA 8 (342.90 mm OD)

Fixed Grooved

304L SS

203.708

20.6

—

342.9

19.1

203.7

200.2

9.7

298.5

ASA FLG,SS,FXD,13.50"OD,8.02"C BORE,(8).812BH,11.75BC,O-R GRV

(please log in)

ASA1350X80G

$565.00

ASA 10 (406.40 mm OD)

Fixed Grooved

304L SS

Blank

20.6

—

406.4

19.1

Blank

—

362

ASA FLG,SS,FXD,16"OD,BLANK, (12).812"BH,14.25"BC,O-R GRV

(please log in)

ASA1600X00G

$822.70

ASA 10 (406.40 mm OD)

Fixed Grooved

304L SS

254.5

20.6

—

406.4

19.1

254.5

251

9.7

362

ASA FLG,SS,FXD,16"OD,10.02"C- BRE,(12).812"BH,14.25BC,O-RGRV

(please log in)

ASA1600X10G

$822.70

ASA 10 (406.40 mm OD)

Fixed Grooved

304L SS

305.3

20.6

—

406.4

19.1

305.3

301.8

9.7

362

ASA FLG,SS,FXD,16"OD,12.02"C- BORE,W/O-RING GROOVE

(please log in)

ASA1600X12G

$860.00

ASA 1 (107.95 mm OD)

Fixed Grooved

304L SS

Blank

—

108

12.7

Blank

—

79.5

ASA FLG,SS,FXD,4.25"OD,BLANK, (4).625"BH,3.125"BC,O-R GRV

(please log in)

ASA425X00G

$93.25

ASA 1 (107.95 mm OD)

Fixed Grooved

304L SS

25.7

—

108

12.7

25.7

23.9

6.4

79.4

ASA FLG,SS,FXD,4.25"OD,1.01"C- BORE,(4).625BH,3.125BC,O-R GRV

(please log in)

ASA425X10G

$149.50

ASA 1 (107.95 mm OD)

Fixed Grooved

304L SS

38.354

—

108

12.7

38.4

36.6

6.4

79.5

ASA FLG,SS,FXD,4.25"OD,1.51"C- BORE,(4).625BH,3.125BC,O-R GRV

(please log in)

ASA425X15G

$98.45

ASA 1.5 (127.00 mm OD)

Fixed Grooved

304L SS

Blank

—

127

12.7

Blank

—

98.6

ASA FLG,SS,FXD,5"OD,BLANK,(4) .625"BH,3.88"BC,O-R GRV

(please log in)

ASA500X00G

$118.15

ASA 1.5 (127.00 mm OD)

Fixed Grooved

304L SS

38.354

—

127

12.7

38.4

36.6

6.4

98.6

ASA FLG,SS,FXD,5"OD,1.51"CBORE (4).625"BH,3.88"BC,O-R GRV

(please log in)

ASA500X15G

$137.85

ASA 1.5 (127.00 mm OD)

Fixed Grooved

304L SS

51.054

—

127

12.7

51.1

49.3

6.4

98.6

ASA FLG,SS,FXD,5"OD,2.01"CBORE (4).625"BH,3.88"BC,O-R GRV

(please log in)

ASA500X20G

$133.65

ASA 1.5 (127.00 mm OD)

Fixed Grooved

304L SS

63.754

—

127

12.7

63.8

6.4

98.6

ASA FLG,SS,FXD,5"OD,2.51"CBORE (4).625"BH,3.88"BC,O-R GRV

(please log in)

ASA500X25G

$260.00

ASA 2 (152.40 mm OD)

Fixed Grooved

304L SS

Blank

19.1

—

152.4

12.7

Blank

—

120.7

ASA FLG,SS,FXD,6"OD,BLANK,(4) .75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X00G

$138.85

ASA 2 (152.40 mm OD)

Fixed Grooved

304L SS

51.054

19.1

—

152.4

12.7

51.1

49.3

6.4

120.7

ASA FLG,SS,FXD,6"OD,2.01"CBORE (4).75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X20G

$155.40

ASA 2 (152.40 mm OD)

Fixed Grooved

304L SS

63.754

19.1

—

152.4

12.7

63.8

6.4

120.7

ASA FLG,SS,FXD,6"OD,2.51"CBORE (4).75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X25G

$289.50

ASA 2 (152.40 mm OD)

Fixed Grooved

304L SS

76.454

19.1

—

152.4

12.7

76.5

74.7

6.4

120.7

ASA FLG,SS,FXD,6"OD,3.01"CBORE (4).75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X30G

$150.25

ASA 2 (152.40 mm OD)

Fixed Grooved

304L SS

89.2

19.1

152.4

12.7

89.2

87.4

6.4

120.7

ASA FLG,SS,FXD,6"OD,3.51"CBORE (4).75"BH,4.75"BC,O-R GRV

(please log in)

ASA600X35G

$75.00

ASA 3 (190.50 mm OD)

Fixed Grooved

304L SS

Blank

19.1

—

190.5

12.7

Blank

—

152.4

ASA FLG,SS,FXD,7.50"OD,BLANK, (4).75"BH,6"BC,O-R GRV

(please log in)

ASA750X00G

$182.35

ASA 3 (190.50 mm OD)

Fixed Grooved

304L SS

76.454

19.1

—

190.5

12.7

76.5

74.7

6.4

152.4

ASA FLG,SS,FXD,7.50"OD,3.01"C- BORE,(4).75"BH,6"BC,O-R GRV

(please log in)

ASA750X30G

$515.00

ASA 3 (190.50 mm OD)

Fixed Grooved

304L SS

89.2

19.1

—

190.5

12.7

89.2

87.4

6.4

152.4

ASA FLG,SS,FXD,7.50"OD,3.51"C- BORE,(4).75"BH,6"BC,O-R GRV

(please log in)

ASA750X35G

$229.00

ASA 3 (190.50 mm OD)

Fixed Grooved

304L SS

101.854

19.1

—

190.5

12.7

101.9

99.6

6.4

152.4

ASA FLG,SS,FXD,7.50"OD,4.01"C- BORE,(4).75"BH,6"BC,O-R GRV

(please log in)

ASA750X40G

$197.95

ASA 4 (228.60 mm OD)

Fixed Grooved

304L SS

Blank

19.1

—

228.6

12.7

Blank

—

190.5

ASA FLG,SS,FXD,9"OD,BLANK,(8) .75"BH,7.5"BC,O-R GRV

(please log in)

ASA900X00G

$213.45

ASA 4 (228.60 mm OD)

Fixed Grooved

304L SS

101.854

19.1

—

228.6

12.7

101.9

99.6

6.4

190.5

ASA FLG,SS,FXD,9"OD,4.01"CBORE (8).75"BH,7.5"BC,O-R GRV

(please log in)

ASA900X40G

$224.85

ASA 4 (228.60 mm OD)

Fixed Grooved

304L SS

152.9

19.1

—

228.6

12.7

152.9

150.4

6.4

190.5

ASA FLG,SS,FXD,9"OD,6.02"CBORE (8).75"BH,7.5"BC,O-R GRV

(please log in)

ASA900X60G

$224.85

Notes:

Limited availability and specially priced.

Flange Selection Guide

With a variety of flanges to choose from, the Flange Selection Guide is designed to help you find one to meet your vacuum requirements. Shop Now!
Can't find the flange you need or want a custom configuration? Please call us at +1 800 245 1656 or email salesus@lesker.com with your inquiry.

Accessories Table

Description

For

Per Package

VacuCAD^SM

Part Number

Price

In Stock

Add Item

Description

For

Per Package

VacuCAD^SM

Part Number

Price

In Stock

Add Item

O-Rings (Fluorocarbon)

Size 1 ASA Flanges

(please log in)

O-V223

$20.10

O-Rings (Fluorocarbon)

Size 1.5 ASA Flanges

(please log in)

O-V230

$22.00

O-Rings (Fluorocarbon)

Size 2 ASA Flanges

(please log in)

O-V238

$21.65

O-Rings (Fluorocarbon)

Size 3 ASA Flanges

(please log in)

O-V247

$21.65

O-Rings (Fluorocarbon)

Size 4 ASA Flanges

(please log in)

O-V258

$35.25

O-Rings (Fluorocarbon)

Size 6 ASA Flanges

(please log in)

O-V266

$24.60

O-Rings (Fluorocarbon)

Size 8 ASA Flanges

(please log in)

O-V274

$22.55

O-Rings (Fluorocarbon)

Size 10 ASA Flanges

(please log in)

O-V278

$25.70

Bolt Sets, 9/16—12 x 1.50"

Size 1 ASA & 1.5 ASA Flanges

N/A

HBS563121504

$41.25

Bolt Sets, 5/8—11 x 1.75"

Size 2 ASA & 3 ASA Flanges

(please log in)

HBS625111754

$16.10

Bolt Sets, 5/8—11 x 1.75"

Size 4 ASA Flanges

(please log in)

HBS625111758

$30.05

Bolt Sets, 3/4—10 x 2.50"

Size 6 ASA & 8 ASA Flanges

(please log in)

HBS751025008

$85.00

Bolt Sets, 3/4—10 x 2.50"

Size 10 ASA Flanges

(please log in)

HBS751025012

$110.00

How to Combine Click the checkboxes of the parts you would like to purchase and then click the

button below to add all parts selected into your Cart.