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CF to NPT Adapters

Flange to NPT fitting adapters allow the mating of one type of flange system to an NPT fitting. All of our flange to fitting adapters are manufactured from 304 series stainless steel (unless otherwise noted).

Flange to NPT Adapter Types:

CF to NPT Female: Zero length style (center-bored CF flange)
KF to NPT Male:
- Flanged stubs terminating in a tapered thread
- 304 stainless steel
KF to NPT Female:
- Suitable for insertion of an NPT threaded (male) pressure gauge or UTA valve into a foreline.
- Available in 304 stainless steel and aluminum.

Note:

Use PTFE tape for sealing threaded joints.

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Ordering Table

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Flange Size/OD

Fitting

Description

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Price

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Flange Size/OD

Fitting

Description

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DN16CF (1.33" OD)

1/8" NPT

ADAPTER,SS,1-1/3"UHV FLANGE TO 1/8"FNPT

(please log in)

F0133XFNPT2

$113.50

DN16CF (1.33" OD)

1/4" NPT

ADAPTER,SS,1-1/3"UHV FLANGE TO 1/4"FNPT

(please log in)

F0133XFNPT4

$66.35

DN35CF-DN40CF (2.75" OD)

1/8" NPT

ADAPTER,SS,2-3/4"UHV FLANGE TO 1/8"FNPT

(please log in)

F0275XFNPT2

$42.50

DN35CF-DN40CF (2.75" OD)

1/4" NPT

ADAPTER,SS,2-3/4"UHV FLG TO 1/4"FNPT

(please log in)

F0275XFNPT4

$87.65

DN35CF-DN40CF (2.75" OD)

1/8" NPT 1 x Radial

FLANGE,UHV,DBL SIDED,2.75"OD, (1)1/8FNPT

N/A

DFF275X1NPT

$113.50

DN35CF-DN40CF (2.75" OD)

1/8" NPT 2 x Radial

FLANGE,UHV,SS,DBL SIDED,2-3/4" OD,(2)1/8"FNPT,180 DEG APART

N/A

DFF2752NPT18

$87.05

Flange Size/OD

Fitting

Description

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Part Number

Price

In Stock

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Flange Size/OD

Fitting

Description

VacuCAD^SM

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Price

In Stock

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DN16CF (33.78 mm OD)

1/8" NPT

ADAPTER,SS,1-1/3"UHV FLANGE TO 1/8"FNPT

(please log in)

F0133XFNPT2

$113.50

DN16CF (33.78 mm OD)

1/4" NPT

ADAPTER,SS,1-1/3"UHV FLANGE TO 1/4"FNPT

(please log in)

F0133XFNPT4

$66.35

DN35CF-DN40CF (69.85 mm OD)

1/8" NPT

ADAPTER,SS,2-3/4"UHV FLANGE TO 1/8"FNPT

(please log in)

F0275XFNPT2

$42.50

DN35CF-DN40CF (69.85 mm OD)

1/4" NPT

ADAPTER,SS,2-3/4"UHV FLG TO 1/4"FNPT

(please log in)

F0275XFNPT4

$87.65

DN35CF-DN40CF (69.85 mm OD)

1/8" NPT 1 x Radial

FLANGE,UHV,DBL SIDED,2.75"OD, (1)1/8FNPT

N/A

DFF275X1NPT

$113.50

DN35CF-DN40CF (69.85 mm OD)

1/8" NPT 2 x Radial

FLANGE,UHV,SS,DBL SIDED,2-3/4" OD,(2)1/8"FNPT,180 DEG APART

N/A

DFF2752NPT18

$87.05

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

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Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.00" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers

6" (DN100CF) Nipples

—

(please log in)

HBS31224200

$33.20

Gasket, Copper, DN16CF (1.33" OD) Flange , 0.837" OD, 0.640" ID, (10) Per Package

1-1/3" (DN16CF) Nipples

—

(please log in)

GA-0133

$26.35

Gasket, Copper, DN35CF-DN40CF (2.75" OD) Flange, 1.895" OD, 1.451" ID, (10) Per Package

2-3/4" (DN35-DN40CF) Nipples

—

(please log in)

GA-0275

$34.40

Gasket, Copper, DN35CF-DN40CF (2.75" OD) Flange, Large Bore, 1.895" OD, 1.528" ID, (10) Per Package

2-3/4" (DN35-DN40CF) Nipples

—

(please log in)

GA-0275LB

$34.50

Socket Head Cap Screw & Nut Set, Stainless Steel, DN16CF (1.33" OD) Flange, (25) 8-32 x 0.75" Long Socket Head Cap Screws & (25) Hex Nuts

1-1/3" (DN16CF) Nipples

N/A

SBS832075S4-25

$40.00

Gasket, Copper, DN25 (2.125" OD) Flange, 1.291" OD, 1.010" ID, (10) Per Package

2-1/8" (DN25CF) Nipples

—

(please log in)

GA-0212

$29.05

Gasket, Copper, DN50CF (3.375" OD) Flange, 2.425" OD, 2.010" ID, (10) Per Package

3-3/8" (DN50CF) Nipples

—

(please log in)

GA-0337

$37.15

Gasket, Copper, DN63CF (4.50" OD) Flange, 3.243" OD, 2.506" ID, (10) Per Package

4-1/2" (DN63CF) Nipples

—

(please log in)

GA-0450

$58.90

Gasket, Copper, DN75CF (4.625" OD) Flange, 3.598" OD x 3.010" ID, (10) Per Package

4-5/8" (DN75CF) Nipples

—

(please log in)

GA-0462

$60.85

Gasket, Copper, DN100CF (6.00" OD) Flange, 4.743" OD,4.006" ID, (10) Per Package

6" (DN100CF) Nipples

—

(please log in)

GA-0600

$75.80

Gasket, Copper, DN125CF (6.75" OD) Flange, 5.567" OD x 5.010" ID, (10) Per Package

6-3/4" (DN125CF) Nipples

—

(please log in)

GA-0675

$93.50

Gasket, Copper, DN160CF (8.00" OD) Flange, 6.743" OD, 6.007" ID, (10) Per Package

8" (DN160CF) Nipples

—

(please log in)

GA-0800

$105.30

Gasket, Copper, DN200CF (10.00" OD) Flange, 8.743" OD, 8.007" ID, (10) Per Package

10" (DN200CF) Nipples

—

(please log in)

GA-1000

$131.30

Gasket, Copper, DN275CF (13.25" OD) Flange, 11.590" OD, 10.845" ID, (1) Per Package

13-1/4" CF Nipples

—

(please log in)

GA-1325

$69.45

Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 1/4-28 x 1.38" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers

2-1/8" (DN25CF) Nipples

—

(please log in)

HBS25028138

$30.50

Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 1/4-28 x 1.38" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers

2-3/4" (DN35-DN40CF) Nipples

—

(please log in)

HBS25028138

$30.50

Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 1.75" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers

3-3/8" (DN50CF) Nipples

—

(please log in)

HBS31224175

$39.20

Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.00" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers

4-1/2" (DN63CF) Nipples

—

(please log in)

HBS31224200

$33.20

Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.00" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers

4-5/8" (DN75CF) Nipples

—

(please log in)

HBS31224200

$33.20

Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.25" Hex Bolts, (25) Hex Nuts, & (50) Flat Washers

6-3/4" (DN125CF) Nipples

—

(please log in)

HBS31224225

$39.20

Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.25" Hex Bolts, (25) Hex Nuts, & (50) Flat Washers

8" (DN160CF) Nipples

—

(please log in)

HBS31224225

$39.20

Hex,bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.50" Hex Bolts, (25) Hex Nuts, & (50) Flat Washers

10" (DN200CF) Nipples

—

(please log in)

HBS31224250

$30.05

Hex Bolt, Nut & Washer Set, Stainless Steel, (30) 3/8-24 x 3.00" Hex Bolts, (30) Hex Nuts, & (60) Flat Washers

13-1/4" CF Nipples

—

N/A

HBS37524300

$65.00

Thread Lubricant, 4 Ounce Tube

All CF Nipples

—

N/A

VZTL-4OZ

$47.00

Gasket Removal Tool, For All Conflat (CF) Flange Sizes

All CF Nipples

—

N/A

VZGRT

$38.50

Notes:

This item is a socket head cap screw, not a hex head bolt.

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