| Buy 1 - 9 | and pay only $0.83 each |
| Buy 10 - 25 | and pay only $0.73 each |
| Buy 26 - 50 | and pay only $0.70 each |
| Buy 51 - 100 | and pay only $0.67 each |
| Buy 101 or above | and pay only $0.64 each |
Klingersil C4430 Flange Gaskets are widely used for medium temperature and medium pressure sealing. This versatile gasket material is a true general-purpose grade that has good compatability with a wide range of media and fluids, reasonable temperature resistance and pressure resistance. ANSI B 16.5 Flanges and the associated ANSI B 16.21 Gaskets are widely used in a variety of industries around Australia. The following sections provide more information on the ring gaskets listed on this page, the capabilities of C4430 as a gasket material, and the individual gasket sizes for each standard, ring-face table gasket up to 600NB.
This page lists ring type gaskets. This style of gasket is designed to sit inside the bolts of the flanges and is known by quite a few names, including:
The gaskets featured on this page are all cut to suit the size requirements of ANSI B16.21 and used with ASME B16.5 Flanges. This specification contains 5 different flange tables listed below:
Ii many nominal pipe sizes (NB), the Class 300 and Class 600 call for the same size gasket. The same is true with Class 900 and Class 1500. When this is true, a single gasket is offered that will fit both (denoted on the list as Class 300 / 600). When the specification calls for different size gaskets, individual options for each are listed.
What this means in practice is…
ANSI 150
Does not share it’s sizing with any other flange table at any nominal bore.
ANSI 300
Shares it’s sizing with ANSI 600 up to 80NB (3”). For pipes larger than this, individual gaskets are offered as the sizes differ.
ANSI 600
Shares it’s sizing with ANSI 300 up to 80NB (3”). For pipes larger than this, individual gaskets are offered as the sizes differ.
ANSI 900
Shares it’s sizing with ANSI 1500 up to 65NB (2.5”). For pipes larger than this, individual gaskets are offered as the sizes differ.
ANSI 1500
Shares it’s sizing with ANSI 900 up to 65NB (2.5”). For pipes larger than this, individual gaskets are offered as the sizes differ.
Gaskets made from C4430 exhibit good all-round sealing capabilities and compatibility with a wide range of fluids and media. Performance characteristics include:
Maximum operating temperature and pressure are highly dependent on one another, and the medium being sealed. That said, a rough guideline for this material is:
Temperature: +200°C Continuous / +400°C Maximum for very short periods.
Pressure: 100 BAR
We really do suggest utilised the attached C4430 Data Sheet though as this includes pT diagrams showing the inter-relationship between maximum pressure and temperature.
Klingersil C4430 has been certified in accordance with a number of worldwide standards. These include:
For more information on the various certifications and approvals bequeathed on this gasket sheet please refer to the attached C4430 Data Sheet for a full and comprehensive listing.
The full list of chemicals that C4430 Gasket Material can or cannot seal is incredibly long and detailed. The list below is presented as a summary only. For more information on a specific medias’ compatibility please do contact us and we’ll be happy to help.
In general, C4430 is compatible with…
All Dimensions below are given in millimeters (mm).
| Flange Nominal Bore |
Imperial Short-Hand |
Gasket ID | Gasket OD | Matches Table |
| 15NB | 1/2" | 21 | 48 | - |
| 20NB | 3/4" | 27 | 57 | - |
| 25NB | 1" | 33 | 67 | - |
| 32NB | 1 1/4" | 42 | 76 | - |
| 40NB | 1 1/2" | 48.4 | 86 | - |
| 50NB | 2" | 60.3 | 105 | - |
| 65NB | 2 1/2" | 73 | 124 | - |
| 80NB | 3" | 89 | 136.5 | - |
| 90NB | 3 1/2" | 102 | 162 | - |
| 100NB | 4" | 114.3 | 175 | - |
| 125NB | 5" | 141.3 | 197 | - |
| 150NB | 6" | 168 | 222 | - |
| 200NB | 8" | 219 | 279 | - |
| 250NB | 10" | 273 | 340 | - |
| 300NB | 12" | 324 | 410 | - |
| 350NB | 14" | 356 | 450 | - |
| 400NB | 16" | 406 | 515 | - |
| 450NB | 18" | 457 | 550 | - |
| 500NB | 20" | 508 | 605 | - |
| 600NB | 24" | 610 | 715 | - |
All Dimensions below are given in millimeters (mm).
| Flange Nominal Bore |
Imperial Short-Hand |
Gasket ID | Gasket OD | Matches Table |
| 15NB | 1/2" | 21 | 54 | ANSI 600 |
| 20NB | 3/4" | 27 | 67 | ANSI 600 |
| 25NB | 1" | 33 | 73 | ANSI 600 |
| 32NB | 1 1/4" | 42 | 83 | ANSI 600 |
| 40NB | 1 1/2" | 48.4 | 95 | ANSI 600 |
| 50NB | 2" | 60.3 | 111 | ANSI 600 |
| 65NB | 2 1/2" | 73 | 130 | ANSI 600 |
| 80NB | 3" | 89 | 149 | ANSI 600 |
| 90NB | 3 1/2" | 102 | 165 | - |
| 100NB | 4" | 114.3 | 181 | - |
| 125NB | 5" | 141.3 | 216 | - |
| 150NB | 6" | 168 | 251 | - |
| 200NB | 8" | 219 | 308 | - |
| 250NB | 10" | 273 | 362 | - |
| 300NB | 12" | 324 | 422 | - |
| 350NB | 14" | 356 | 486 | - |
| 400NB | 16" | 406 | 540 | - |
| 450NB | 18" | 457 | 597 | - |
| 500NB | 20" | 508 | 654 | - |
| 600NB | 24" | 610 | 775 | - |
All Dimensions below are given in millimeters (mm).
| Flange Nominal Bore |
Imperial Short-Hand |
Gasket ID | Gasket OD | Matches Table |
| 15NB | 1/2" | 21 | 54 | ANSI 300 |
| 20NB | 3/4" | 27 | 67 | ANSI 300 |
| 25NB | 1" | 33 | 73 | ANSI 300 |
| 32NB | 1 1/4" | 42 | 83 | ANSI 300 |
| 40NB | 1 1/2" | 48.4 | 95 | ANSI 300 |
| 50NB | 2" | 60.3 | 111 | ANSI 300 |
| 65NB | 2 1/2" | 73 | 130 | ANSI 300 |
| 80NB | 3" | 89 | 149 | ANSI 300 |
| 90NB | 3 1/2" | 102 | 162 | - |
| 100NB | 4" | 114.3 | 194 | - |
| 125NB | 5" | 141.3 | 241 | - |
| 150NB | 6" | 168 | 267 | - |
| 200NB | 8" | 219 | 320.7 | - |
| 250NB | 10" | 273 | 400 | - |
| 300NB | 12" | 324 | 457 | - |
| 350NB | 14" | 356 | 492 | - |
| 400NB | 16" | 406 | 565 | - |
| 450NB | 18" | 457 | 613 | - |
| 500NB | 20" | 508 | 683 | - |
| 600NB | 24" | 610 | 791 | - |
All Dimensions below are given in millimeters (mm).
| Flange Nominal Bore |
Imperial Short-Hand |
Gasket ID | Gasket OD | Matches Table |
| 15NB | 1/2" | 21 | 64 | ANSI 1500 |
| 20NB | 3/4" | 27 | 70 | ANSI 1500 |
| 25NB | 1" | 33 | 79 | ANSI 1500 |
| 32NB | 1 1/4" | 42 | 89 | ANSI 1500 |
| 40NB | 1 1/2" | 48.4 | 98 | ANSI 1500 |
| 50NB | 2" | 60.3 | 143 | ANSI 1500 |
| 65NB | 2 1/2" | 73 | 165 | ANSI 1500 |
| 80NB | 3" | 89 | 168 | - |
| 90NB | 3 1/2" | N/A | N/A | - |
| 100NB | 4" | 114.3 | 206 | - |
| 125NB | 5" | 141.3 | 248 | - |
| 150NB | 6" | 168 | 289 | - |
| 200NB | 8" | 219 | 359 | - |
| 250NB | 10" | 273 | 435 | - |
| 300NB | 12" | 324 | 498 | - |
| 350NB | 14" | 356 | 520 | - |
| 400NB | 16" | 406 | 575 | - |
| 450NB | 18" | 457 | 638 | - |
| 500NB | 20" | 508 | 699 | - |
| 600NB | 24" | 610 | 840 | - |
All Dimensions below are given in millimeters (mm).
| Flange Nominal Bore |
Imperial Short-Hand |
Gasket ID | Gasket OD | Matches Table |
| 15NB | 1/2" | 21 | 64 | ANSI 900 |
| 20NB | 3/4" | 27 | 70 | ANSI 900 |
| 25NB | 1" | 33 | 79 | ANSI 900 |
| 32NB | 1 1/4" | 42 | 89 | ANSI 900 |
| 40NB | 1 1/2" | 48.4 | 98 | ANSI 900 |
| 50NB | 2" | 60.3 | 143 | ANSI 900 |
| 65NB | 2 1/2" | 73 | 165 | ANSI 900 |
| 80NB | 3" | 89 | 175 | - |
| 90NB | 3 1/2" | N/A | N/A | - |
| 100NB | 4" | 114.3 | 210 | - |
| 125NB | 5" | 141.3 | 254 | - |
| 150NB | 6" | 168 | 283 | - |
| 200NB | 8" | 219 | 352 | - |
| 250NB | 10" | 273 | 435 | - |
| 300NB | 12" | 324 | 520 | - |
| 350NB | 14" | 356 | 580 | - |
| 400NB | 16" | 406 | 641 | - |
| 450NB | 18" | 457 | 705 | - |
| 500NB | 20" | 508 | 755 | - |
| 600NB | 24" | 610 | 901 | - |
| Colour | Green | |
| Compressibility (ASTM F 36 J) | 9% | |
| Recovery (ASTM F 36 J) | 50% | Minimum |
| Stress Relaxation (DIN 52913) |
39 MPa 35 MPa |
50 MPa, 16 hours / 175°C 50 MPa, 16 hours / 300°C |
| Stress Relaxation (BS 7531) | 31 MPa | 40 MPa, 16 hours / 300°C |
| Klinger Cold / Hot Compression (50 MPa) |
8% 11% |
Thickness Decrease at 23°C Thickness Decrease at 300°C |
| Tightness According to DIN 3535/6 | <0.1 mg/s x m | |
| Tightness Class L | 0.1 | DIN 28090-1 |
| Specific Leakrate λ | 2,13E-05 mbar x l/s x m | VDI 2440 |
| Cold Compression | 6 - 10% | DIN 28091-2 |
| Cold Recovery | 2 - 4% | DIN 28091-2 |
| Hot Compression | 7% | DIN 28091-2 |
| Hot Recovery | 1% | DIN 28091-2 |
| Spring Back R | 0.019mm | DIN 28091-2 |
| Density | 1.75 g/cm³ | |
| Average Surface Resistance | Ω 4.1x10E13 | R0A |
| Average Specific Volume Resistance | Ω cm 4.5x10E12 | |
| Average Dielectric Strength | 21.3 kV/mm | |
| Average Power Factor | 0.02 tan δ | 1 kHz, ca. 2mm thickness |
| Average Dielectric Coefficient | 6.4 εr | |
| Thermal Conductivity | 0.42 W/mK | |
| Thickness Increase After Fluid Immersion (ASTM F 146) | ||
| Oil | 3% | JRM 903, 5 Hours at 150°C |
| Fuel B | 5% | 5 Hours at 23°C |
| ASME Code Sealing Factors | ||
| For 2mm Thick Gaskets | Y = 25 M = 5 |
Tightness Class 0.1 mg / s x m |
| SKU | SWP000467 |
|---|---|
| Brand | Klinger |
