Backing Rings PVC PN10/16

SKU: 7.44.100

Price:
Sale price£2.60

Description

PVC Backing Rings

Description

PVC backing rings are used to convert stub flanges to a full-face flange and are able to rotate independently  of the stub.

Care should be taken when selecting PVC stub flanges and backing rings from different suppliers as many manufacturers custom make their own rings.

Flange Sizing

The number and diameter of holes together with the PCD determines the backing ring size and pattern.  The PCD (Pitch Circle Diameter) is the measurement from the centre of one bolt hole, across the centre of the backing ring, to the centre of the opposite hole.

The table below details the specification for both imperial and metric PN10/16.  We can also supply Table D/E if required.

Ring

Size

o.d.

mm

PCD

mm

Bolt

Holes

Bolt Hole

Dia mm

Bolt

Dia mm

1/2" / 20mm 95 65 4 14 M12
3/4" / 25mm 105 75 4 14 M12
1" / 32mm  115 85 4 14 M12
1 1/4" / 40mm 140 100 4 18 M16
1 1/2" / 50mm 150 110 4 18 M16
2" / 63mm 165 125 4 18 M16
2 1/2" / 75mm 185 145 4 18 M16
3" / 90mm 200 160 8 18 M16
4" / 110mm 220 180 8 18 M16
6" / 160mm 285 240 8 22 M20
8" / 200mm 340 295 12 22 M20
10" / 250mm 395 355 12 26 M24

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