DIN FRP Backing Ring

Manufactured to conform to DIN and PS 15-69.
1 C-veil (30g/m²) + 2 Mat (450g/m²) 2.5mm (100 mil) resin rich corrosion liner.
Hand laid, integral type construction, woven roving used continuously from flange face to hub for DN80 mm size and larger.
Uniform external surface and stub outside diameter stub end surface prepared for immediate bonding.
Bolt holes of drilled flanges are coated with resin.
Flange holes drilling accoring to DIN 2501/PN10.
Available in Vinyl Ester Resin, Derakane Momentum 411-350, 470-300 & Basic Vinyl Ester. Supply using other resin systems possible.
MEKP cure system.

DIN Standard. (unit:mm)

Flange Nominal Size DN	Working Pressure (bar)	Flange Diameter D	Flange Thickness b2	Bolt Circle Diameter K	Pipe Inside Dia Fillet Radius r3	No. of Bolt Hole Size n x d2	Back Ring ID d6	Weight (Kg)
DN25	16	115	15	85	3	4x14	50	0.25
DN40	16	150	16	110	3	4x18	68	0.45
DN50	16	160	18	125	4	4x18	82	0.6
DN65	16	185	20	145	4	4x18	95	0.8
DN80	16	200	22	160	4	8x18	111	1
DN100	16	220	25	180	5	8x18	133	1.3
DN125	16	250	27	210	5	8x18	160	1.7
DN150	10	285	30	240	5	8x22	188	2.35
DN200	10	340	32	295	8	8x22	237	3.23
DN250	10	395	40	350	8	12x22	293	5
DN300	10	445	44.5	400	8	12x22	343	6.42
DN350	10	505	48	460	8	16x22	386	8.5
DN400	10	565	51	515	8	16x26	451	10.84
DN450	10	615	54	565	8	20x26	503	15
DN500	10	670	57	620	8	20x26	556	17.14
DN600	10	780	62	725	8	20x30	647	20.56

FRP Backing Ring (DIN)