15NB ANSI 300 / 600 Ring Face Gasket, 1.5mm Conafi Gasket Fibre

SKU: SWM000011P06V0021
Availability: Cut to Order, Ships in 2-3 W/Days.
$0.72
INC. GST
$0.65
EX. GST

BULK DISCOUNT RATES

All Bulk Prices Below Are Quoted Including GST.
Buy 10 - 24 and pay only $0.68 each
Buy 25 - 49 and pay only $0.67 each
Buy 50 - 99 and pay only $0.64 each
Buy 100 or above and pay only $0.60 each
  • Economical, General-Purpose Compressed Non-Asbestos Fibre (CNAF) Flange Gaskets.
  • Used for medium pressure pipe sealing up to 220°C.
  • Compatible with water (certified for potable), steam, fuel, oils, natural gas and diluted acids.
  • Cut to size in our Australia facilities and available in the full range of standard sizes.

Conafi Flange Gaskets are a great option for general-purpose sealing requirements. These gaskets are a step up from (most types of) rubber in terms of pressure and temperature resistance yet are still quite economical. The styles and sizes listed on this page are all made to suit ANSI 300# and/or 600# Flanges and are available in Ring Face.

For more information on our Conafi Gasket Sheet, please see the sections below or consult our Conafi Technical Data Sheet.

Conafi Gasket Sheet Information

Conafi is a general-purpose gasket fibre sheet material that is made from a combination of mineral and aramid fibres that are secured with an NBR (Nitrile Butadiene Rubber) binder. Gaskets cut from this quality material offer several benefits, including:

Wide Ranging Chemical & Media Compatibility.

Conafi Gaskets have been engineered to hit the sweet spot between versatility and economy. To achieve this, the material has been produced using only quality ingredients with the result being a gasket material with excellent compatibility with various types of media, fluids and chemicals.

Conafi is highly compatible with:

  • Water.
  • Potable Water (Certified by KTW).
  • Gas (DVGW Certified).
  • Oils.
  • Petrol.
  • Salts.
  • Alkalis.
  • Mild Acids.
  • Many other types of chemicals, gases and fluids.

Conafi CNAF Gasket Material PT DiamgramGood Temperature Resistance.

Conafi generally withstands sealing applications with temperatures between -30°C and +220°C. Like most gasket materials, the maximum operating temperature of Conafi Gaskets have a direct relationship with the pressure they are sealing.

The chart on the right illustrates this relationship showing that at its maximum pressure rating (6MPa) Conafi should only be used for applications up to about 180°C (this is also true when used to seal steam). Higher temperatures are possible where the operating pressure of the joint is lower.

Excellent Sealing Characteristics.

In addition to Conafi’s ability to handle a wide range of temperatures and media, this material has excellent sealing properties. Many are summarised in the table below with more information available on the attached Conafi Technical Data Sheet.

Base Materials Kevlar Aramid Fibres, Mineral Fibres and an NBR Binder
Maximum Continuous Operating Pressure 6 MPa
Density 2 g/cm³
Compressibility 11.7% (ASTM F 36)
Recovery 58.8% (ASTM F 36)
Creep Relaxation 20.3% (ASTM F 36)

Conafi CNAF Flange Gaskets to Suit ANSI Size Info.

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:

  • RF Flange Gaskets.
  • IBC Gaskets (Inner Bolt Circle).
  • Raised Face Gaskets (as they are often used on raised face type flanges).
  • Ring Face Gaskets.

These gaskets 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:

  • ANSI 150 (Class 150)
  • ANSI 300 (Class 300)
  • ANSI 600 (Class 600)
  • ANSI 900 (Class 900)
  • ANSI 1500 (Class 1500)

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.

Ring Face Flange Gaskets to suit ANSI B16.5 Flanges Size Tables.

ANSI 150 ButtonANSI 300 ButtonANSI 150 ButtonANSI 900 ButtonANSI 1500 Button

Class 150 Ring Gasket Sizes.

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 -

Return to Sizing Table Menu.

Class 300 Ring Gasket Sizes.

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 -

Return to Sizing Table Menu.

Class 600 Ring Gasket Sizes.

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 -

Return to Sizing Table Menu.

Class 900 Ring Gasket Sizes.

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 -

Return to Sizing Table Menu.

Class 1500 Ring Gasket Sizes.

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 -

Return to Sizing Table Menu.

Colour Green
Temperature Resistance -30°C to +220°C
Potable Water Approved Yes (KTW)
Gas Approved Yes (DVGW)
Oxygen Sealing Approved No
Base Materials Kevlar Aramid Fibres, Mineral Fibres and an NBR Binder
Maximum Continuous Operating Pressure 6 MPa
Density 2 g/cm³
Compressibility 11.7% (ASTM F 36)
Recovery 58.8% (ASTM F 36)
Creep Relaxation 20.3% (ASTM F 36)
SKU SWM000011P06-300-600-1.5