Copper and Silver Conflat® Gaskets

All of our gaskets are made from high-purity, electronic grade oxygen-free copper alloy 101 (99.99% pure), 1/4-hard temper, Rockwell 63-83 hardness, ASTM F 68-77, ASTM B 152-79.

Gaskets are punched dry, but the dyes are wiped with a vanishing cutting fluid which comes in contact with the gasket. It evaporates, leaving no residue. Nicks or scratches shall not exceed .0005" deep, or .003" wide. Burrs shall not exceed .002".

We also offer silver-plated copper gaskets designed to prevent oxidation at high temperatures.

* Asterisk items have a larger ID for special requirements.

DUNIWAY PART # Description PRICE REQUEST Image
BG-0133 Solid (Blank) Copper Gaskets for 1.33" OD CF Flange (OD 0.838"), 10/pkg
$25.00
BG-0275 Solid (Blank) Copper Gaskets for 2.75" OD CF Flange (OD 1.895"), 10/pkg
$30.00
BG-0338 Solid (Blank) Copper Gaskets for 3.375" OD CF Flange (OD 2.425"), 10/pkg
$70.00
BG-0450 Solid (Blank) Copper Gaskets for 4.50" OD CF Flange (OD 3.243"), 10/pkg
$75.00
BG-0600 Solid (Blank) Copper Gaskets for 6.00" OD CF Flange (OD 4.743"), Single Unit
$25.00
BG-0800 Solid (Blank) Copper Gaskets for 8.00" OD CF Flange (OD 6.743"), Single Unit
$60.00
DUNIWAY PART # Description PRICE REQUEST Image
CA-133 Copper Pinch-Off Adapter, Gasket for 1.33" OD CF Flange to 3/8" OD, 6" Long Tube, 4/pkg
$95.00
CA-275 Copper Pinch-Off Adapter, Gasket for 2.75" OD CF Flange to 3/8" OD, 6" Long Tube, 4/pkg
$95.00
DUNIWAY PART # Description PRICE REQUEST Image
G-0133 Copper Gaskets for 1.33" OD CF Flange (OD 0.838", ID 0.641"), 10/pkg
$15.00
G-013X Copper Gaskets for 1.33" OD CF Flange (OD 0.838", ID 0.680"), 10/pkg *
$15.00
G-0218 Copper Gaskets for 2.125" OD CF Flange (OD 1.290", ID 1.010"), 10/pkg
$18.00
G-0275 Copper Gaskets for 2.75" OD CF Flange (OD 1.895", ID 1.451"), 10/pkg
$20.00
G-027X Copper Gaskets for 2.75" OD CF Flange (OD 1.895", ID 1.530"), 10/pkg *
$26.00
G-0338 Copper Gaskets for 3.375" OD CF Flange (OD 2.425", ID 2.010"), 10/pkg
$23.00
G-0450 Copper Gaskets for 4.50" OD CF Flange (OD 3.243", ID 2.506"), 10/pkg
$34.00
G-0458 Copper Gaskets for 4.625" OD CF Flange (OD 3.598", ID 3.010"), 10/pkg
$39.00
G-045X Copper Gaskets for 4.50" OD CF Flange (OD 3.243", ID 2.800"), 10/pkg *
$42.00
G-0600 Copper Gaskets for 6.00" OD CF Flange (OD 4.743", ID 4.010"), 10/pkg
$49.00
G-060X Copper Gaskets for 6.00" OD CF Flange (OD 4.743", ID 4.25"), 10/pkg *
$53.00
G-0675 Copper Gaskets for 6.75" OD CF Flange (OD 5.567", ID 5.010"), 10/pkg
$55.00
G-0800 Copper Gaskets for 8.00" OD CF Flange (OD 6.743", ID 6.007"), 10/pkg
$66.00
G-1000 Copper Gaskets for 10.00" OD CF Flange (OD 8.743", ID 8.007"), 10/pkg
$88.00
DUNIWAY PART # Description PRICE REQUEST Image
SG-0133 Silver-Plated Copper Gaskets for 1.33" OD CF Flange (OD 0.838", ID 0.641"), 10/pkg
$28.00
SG-013X Silver-Plated Copper Gaskets for 1.33" OD CF Flange (OD 0.838", ID 0.680"), 10/pkg *
$30.00
SG-0275 Silver-Plated Copper Gaskets for 2.75" OD CF Flange (OD 1.895", ID 1.451"), 10/pkg
$36.00
SG-027X Silver-Plated Copper Gasket for 2.75" OD CF Flange (OD 1.895", ID 1.530", 10/pkg *
$38.00
SG-0338 Silver-Plated Copper Gaskets for 3.375" OD CF Flange (OD 2.425", ID 2.010"), 10/pkg
$45.00
SG-0450 Silver-Plated Copper Gaskets for 4.50" OD CF Flange (OD 3.243", ID 2.506"), 10/pkg
$70.00
SG-045X Silver-Plated Copper Gasket for 4.50" CF Flange (OD 3.243", ID 2.800"), 10/pkg *
$82.00
SG-0600 Silver-Plated Copper Gaskets for 6.00" OD CF Flange (OD 4.743", ID 4.010"), 10/pkg
$95.00
SG-060X Silver-Plated Copper Gaskets for 6.00" OD CF Flange (OD 4.743", ID 4.25"), 10/pkg *
$135.00
SG-0800 Silver-Plated Copper Gaskets for 8.00" OD CF Flange (OD 6.743", ID 6.007"), 10/pkg
$125.00
SG-1000 Silver-Plated Copper Gaskets for 10.00" OD CF Flange (OD 8.743", ID 8.007"), 10/pkg
$170.00

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