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Zero- Length Reducer Flanges (Metric)

Adapt two different-size knife-edge flanges that need to be bolted together.

Reducer Flange Features:

  • All small flanges have blind tapped bolt holes — most large flanges have through-holes (where the two flanges have similar diameters, both are tapped)
  • Part numbers ending with the letter "M" represent metric-tapped flanges
ISO Standard KJLC flanges & gaskets are compatible with ISO3669-2017, but more importantly are compliant to the stricter requirements of E2734/E2734M – 10.

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Ordering Table

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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 +1 412 387 9200 or email international@lesker.com with your inquiry.

Accessories Table

Description For Per Package Manual
VacuCADSM
Part Number Price In Stock Add Item
Description For Per Package Manual
VacuCADSM
Part Number Price In Stock Add Item
Gasket, Copper, DN16CF (1.33" OD) Flange , 0.837" OD, 0.640" ID, (10) Per Package All 1-1/3" (DN16CF) Flanges 10
(please log in)
GA-0133
$21.05 In Stock
Gasket, Copper, DN25 (2.125" OD) Flange, 1.291" OD, 1.010" ID, (10) Per Package All 2-1/8" (DN25CF) Flanges 10
(please log in)
GA-0212
$24.05 In Stock
Gasket, Copper, DN35CF-DN40CF (2.75" OD) Flange, 1.895" OD, 1.451" ID, (10) Per Package All 2-3/4" (DN35-DN40CF) Flanges 10
(please log in)
GA-0275
$27.35 In Stock
Gasket, Copper, DN35CF-DN40CF (2.75" OD) Flange, Large Bore, 1.895" OD, 1.528" ID, (10) Per Package All 2-3/4" (DN35-DN40CF) Flanges 10
(please log in)
GA-0275LB
$27.35 In Stock
Gasket, Copper, DN50CF (3.375" OD) Flange, 2.425" OD, 2.010" ID, (10) Per Package All 3-3/8" (DN50CF) Flanges 10
(please log in)
GA-0337
$31.10 In Stock
Gasket, Copper, DN63CF (4.50" OD) Flange, 3.243" OD, 2.506" ID, (10) Per Package All 4-1/2" (DN63CF) Flanges 10
(please log in)
GA-0450
$37.20 In Stock
Gasket, Copper, DN75CF (4.625" OD) Flange, 3.598" OD x 3.010" ID, (10) Per Package All 4-5/8" (DN75CF) Flanges 10
(please log in)
GA-0462
$44.25 In Stock
Gasket, Copper, DN100CF (6.00" OD) Flange, 4.743" OD,4.006" ID, (10) Per Package All 6" (DN100CF) Flanges 10
(please log in)
GA-0600
$55.30 In Stock
Gasket, Copper, DN125CF (6.75" OD) Flange, 5.567" OD x 5.010" ID, (10) Per Package All 6-3/4" (DN125CF) Flanges 10
(please log in)
GA-0675
$66.35 In Stock
Gasket, Copper, DN160CF (8.00" OD) Flange, 6.743" OD, 6.007" ID, (10) Per Package All 8" (DN160CF) Flanges 10
(please log in)
GA-0800
$78.40 In Stock
Gasket, Copper, DN200CF (10.00" OD) Flange, 8.743" OD, 8.007" ID, (10) Per Package All 10" (DN200CF) Flanges 10
(please log in)
GA-1000
$96.50 In Stock
Gasket, Copper, DN250CF (12.00" OD) Flange, 10.743" OD x 10.007" ID, (1) Per Package All 12"(DN250) CF Flanges 1
(please log in)
GA-1200
$61.35 In Stock
Gasket, Copper, DN275CF (13.25" OD) Flange, 11.590" OD, 10.845" ID, (1) Per Package All 13-1/4" CF Flanges 1
(please log in)
GA-1325
$54.30 In Stock
Hex Bolt & Washer Kit, Stainless Steel, (25) M6 x 25mm Long Hex Bolts & (25) Flat Washers 2-1/8" (DN25CF) and 2-3/4" (DN35-DN40CF) Smaller CF Flange 25
(please log in)
HBKM6X25
$33.70 In Stock
M8—1.25 x 30 MM Reducer Bolt Set 3-3/8" (DN50CF) Smaller CF Flange 25
N/A
HBKM8X30
$12.40 In Stock
Hex Bolt & Washer Kit, Stainless Steel, (25) M8 x 35mm Long Hex Bolts & (25) Flat Washers 4-1/2" (DN63CF) Smaller CF Flange 25
(please log in)
HBKM8X35
$16.10 In Stock
Hex Bolt & Washer Kit, Stainless Steel, (25) M8 x 35mm Long Hex Bolts & (25) Flat Washers 4-5/8" (DN75CF) Smaller CF Flange 25
(please log in)
HBKM8X35
$16.10 In Stock
Hex Bolt & Washer Kit, Stainless Steel, (25) M8 x 35mm Long Hex Bolts & (25) Flat Washers 6" (DN100CF) Smaller CF Flange 25
(please log in)
HBKM8X35
$16.10 In Stock
Hex Bolt & Washer Kit, Stainless Steel, (25) M8 x 35mm Long Hex Bolts & (25) Flat Washers 8" (DN160CF) Smaller CF Flange 25
(please log in)
HBKM8X35
$16.10 In Stock
Hex Bolt & Washer Kit, Stainless Steel, (25) M8 x 35mm Long Hex Bolts & (25) Flat Washers 10" (DN200CF) Smaller CF Flange 25
(please log in)
HBKM8X35
$16.10 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 3.00" Hex Bolts, (25) Hex Nuts, & (50) Flat Washers 13-1/4" Larger CF Flange 25
N/A
HBS31224300
$50.25 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) M6 x 35mm Long Hex Bolts, (25) Hex Nuts, & (50) Washers 2-3/4" (DN35-DN40CF) Larger CF Flange 25
(please log in)
HBSM6X35
$17.70 In Stock
M8—1.25 x 50 MM Reducer Bolt Set 6" (DN100CF) Larger CF Flange 25
N/A
HBSM8X35
P.O.R. Call for Availability
M8—1.25 x 50 MM Reducer Bolt Set 6-3/4" (DN125CF) Larger CF Flange 25
N/A
HBSM8X35
P.O.R. Call for Availability
M8—1.25 x 50 MM Reducer Bolt Set 8" (DN160CF) Larger CF Flange 25
N/A
HBSM8X35
P.O.R. Call for Availability
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) M8 x 45mm Bolts, (25) Hex Nuts, & (50) Washers 4-1/2" (DN63CF) Larger CF Flange 25
(please log in)
HBSM8X45
$34.20 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) M8 x 45mm Bolts, (25) Hex Nuts, & (50) Washers 4-5/8" (DN75CF) Larger CF Flange 25
(please log in)
HBSM8X45
$34.20 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) M8 x 60mm Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers 10" (DN200CF) Larger CF Flange 32
(please log in)
HBSM8X60
$44.25 In Stock
Socket Head Cap Screw & Washer Set, Stainless Steel, (25) M4 x 16mm Socket Head Cap Screws & (25) Flat Washers 1-1/3" (DN16CF) Smaller CF Flange 25
N/A
SBKM4X16S4-25
P.O.R. Call for Availability
Gasket Clips, For All Conflat (CF) Flange Sizes, (10) Per Package All CF Flanges 10 Download PDF
N/A
VGC0275S
P.O.R. In Stock
Gasket Removal Tool, For All Conflat (CF) Flange Sizes All CF Flanges 1
N/A
VZGRT
$38.20 In Stock
Thread Lubricant, 4 Ounce Tube All CF Flanges 1
N/A
VZTL-4OZ
P.O.R. In Stock
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.
Contact Us - Zero- Length Reducer Flanges (Metric)