BULK DISCOUNT RATES
Buy 10 - 24 | and pay only $0.52 each |
Buy 25 or above | and pay only $0.32 each |
Buy 10 - 24 | and pay only $0.52 each |
Buy 25 or above | and pay only $0.32 each |
Natural Rubber Insertion (NRI) Flange Gaskets are often used in low temperature and low-pressure sealing. Cut in our Australian factory from our Natural Rubber Insertion sheet, the gaskets featured on this page are all designed to suit BS 3063 Table D and/or Table E flanges.
Widely used in many different industries, Insertion Rubber Gaskets are suitable for sealing applications where temperatures are between 0°C and 70°C. They are often used for hydro-testing or permanent, low pressure flange sealing because of their economic nature.
For more information on this material, please consult our Natural Insertion Rubber Technical Data Sheet. For more info on the gaskets, read on.
This page lists ring types gaskets. This style of gasket is designed to sit inside the bolts of the flanges and is known by quite a few names, including:
Theseg askets are all cut to suit BS 3063 Flanges in either Table D or Table E configurations (the two most common). In almost all pipe nominal bores (except 150NB, 200NB & 300NB) there’s no difference in gasket size between Table D or Table E (the gasket fits both) when using ring type gaskets.
For those where there is a difference, both Table D and Table E variations are offered separately.
All Dimensions below are given in millimeters (mm).
Flange Nominal Bore |
Imperial Short-Hand |
Gasket ID | Gasket OD | Matches Table |
15NB | 1/2" | 21 | 52 | E |
20NB | 3/4" | 27 | 59 | E |
25NB | 1" | 34 | 68 | E |
32NB | 1 1/4" | 43 | 73 | E |
40NB | 1 1/2" | 48 | 84 | E |
50NB | 2" | 60 | 97 | E |
65NB | 2 1/2" | 76 | 110 | E |
80NB | 3" | 89 | 129 | E |
90NB | 3 1/2" | 102 | 148 | E |
100NB | 4" | 114 | 160 | E |
125NB | 5" | 140 | 191 | E |
150NB | 6" | 168 | 216 | - |
200NB | 8" | 219 | 273 | - |
250NB | 10" | 273 | 333 | E |
300NB | 12" | 324 | 384 | - |
350NB | 14" | 381 | 444.5 | E |
400NB | 16" | 432 | 495 | E |
450NB | 18" | 483 | 559 | E |
500NB | 20" | 533 | 616 | E |
600NB | 24" | 635 | 728 | E |
All Dimensions below are given in millimeters (mm).
Flange Nominal Bore |
Imperial Short-Hand |
Gasket ID | Gasket OD | Matches Table |
15NB | 1/2" | 21 | 52 | D |
20NB | 3/4" | 27 | 59 | D |
25NB | 1" | 34 | 68 | D |
32NB | 1 1/4" | 43 | 73 | D |
40NB | 1 1/2" | 48 | 84 | D |
50NB | 2" | 60 | 97 | D |
65NB | 2 1/2" | 76 | 110 | D |
80NB | 3" | 89 | 129 | D |
90NB | 3 1/2" | 102 | 148 | D |
100NB | 4" | 114 | 160 | D |
125NB | 5" | 140 | 191 | D |
150NB | 6" | 168 | 213 | - |
200NB | 8" | 219 | 270 | - |
250NB | 10" | 273 | 333 | D |
300NB | 12" | 324 | 381 | - |
350NB | 14" | 381 | 444.5 | D |
400NB | 16" | 432 | 495 | D |
450NB | 18" | 483 | 559 | D |
500NB | 20" | 533 | 616 | D |
600NB | 24" | 635 | 728 | D |
Colour | Black |
---|---|
Insertion | Cotton |
Polymer | NR/SBR (Natural Rubber / Styrene Butadiene Rubber) |
Hardness | 60 Shore A (+/- 5) Durometer |
Continuous Operating Temperature | 0°C to 70°C |
Elongation at Break | 300% |
Tear Strength | 12 N / mm |
Specific Gravity | 1.55 |
Potable Water | No |
Food Grade | No |
Abrasion Resistance | High |
Hydrocarbon and Fuel Resistance | Low |
Tearing Resistance | High |
UV / Sunllight Resistance | Medium |
SKU | SWM000005P05 |
---|---|
Brand | Gaskaseal |