Backing Rings PN16 AS4087 Flanges, Stainless Steel 316 AS4087 backing ring,SS316 backing Ring

C&N is a  professional manufacturer of Backing Rings PN16 AS4087, Stainless Steel 316 AS4087 backing ring,As 4087 Flanges

Backing Ring PN16 AS4087 for bolt on to PE stub flange

Galvanised Backing Ring Flange

Stainless Steel SS 316 Backing Rings

AS 4087 SS316 Backing ring Flange

Backing ring is used to fit PE100 Stub Flanges, These backing rings are available in Table D, Table E, AS4087 and ANSI flange patterns, in both Heavily Galvanised and  SS316 material. Custom made backing rings can also be supplied to suit any flange pattern.

AS 2129 Table D Flange

We Manufacture stainless steel AS 2129  backing Flange from ASTM A182 Forgings or ASTM A240 Plate or Carbon steel material AS 2129 backing  Flange,

AS4087 Backing Ring Flange

AS4087 is the latest standard for BS table D to H, the same drilling is used but the new PN pressure rating system has been adopted. As the new pressure ratings are slightly higher the flange thicknesses have slightly increased. Also the raised face dimensions (although rarely specified, flat face is mostly used) are slightly larger. Table C, J to R, no longer exist, PN16 is the same drilling as Table D, PN21 is the same as Table E, PN35 is the same as Table H.

This AS 4087 flange Standard specifies requirements for circular flanges manufactured from copper alloy, grey cast iron, ductile cast iron, or steel. The external shapes of flanges may alternatively be any other shape. It covers nominal sizes with pressure ratings for PN 14, PN 16, PN 21 and PN 35 at operating temperatures not exceeding 80°C. The Standard also specifies requirements for jointing materials. Flanges are suitable for use on pipes, pipe fittings, valves and other appurtenances that are primarily intended for the conveyance or storage of water or wastewater. NOTE: For applications outside the limits specified in this Standard the appropriate flange details may be determined from AS 2129 series, Flanges for pipes, valves and fittings, and AS/NZS 4331 series, Metallic flanges.

 

AS 4087 Backing ring dimension

  • Australian/New Zealand Standard AS/NZS 4087

  • Flanges available on request, all dimensions in mm

Dimension OD-D ID-A Thickness-T PCD-K Bolt Holes and Diam Bolt Size Weight
63 150 78 11 114 4×18 M16 1.01
75 165 92 11 127 4×18 M16 1.20
90 185 108 11 146 4×18 M16 1.45
110 215 128 13 178 4×18 M16 2.30
125 215 135 13 178 8×18 M16 2.00
160 280 178 13 235 8×18 M16 3.50
180 280 188 13 235 8×18 M16 6.30
200 335 235 19 292 8×18 M16 6.00
225/200* 335 240 19 292 8×18 M16 6.20
225 370 238 19 324 8×18 M16 8.90
250 405 288 19 356 8×22 M20 8.80
280 405 294 19 356 8×22 M20 8.20
315 455 338 23 406 12×22 M20 11.70
355 525 376 30 470 12×26 M24 23.40
400 580 430 30 521 12×26 M24 26.50
450 640 470 30 584 12×26 M24 31.70
500 705 533 38 641 16×26 M24 47.40
630 825 645 48 756 16×30 M27 68.30
710 910 740 56 845 20×30 M27 88.00
800 1060 843 56 984 20×36 M33 137.00
900 1175 947 66 1092 24×36 M33 184.00
1000 1255 1050 66 1175 24×36 M33 178.00

AS4087 backing ring,ss316 backing ring