FRP Backing Rings (Loose Flanges)

Rotec Backing Rings (Loose Flanges) offer an excellent competitive solution with very high and constant quality. The dimensions comply with the specified standards for each particular diameter and pressure class.

Suitable for GRP Stub Flange (Type BRP and BR)

Diameter range [mm]

DN 25 – DN 2400

Pressure ratings (BAR)

PN 3 – 16

Matrix (resin type)

Vinylester

Color

DN25–DN300 off-white ; DN350–DN2400 gray

Drilling Standards

EN1092 / ANSI / AWWA C207 / JIS / AS 2129

Manufacturing Process

Manufactured by Hot Pressing SMC (up to DN300) and RTM (from DN350)

Suitable for PE & PP Stub Flange TYPE BRPPE

Diameter range [mm]

DN 15 – DN 3600

Pressure ratings (BAR)

PN 3 – 16

Matrix (resin type)

Polyester (up to DN300) / Vinylester (from DN350)

Color

DN15–DN300 black, DN350–DN3600 gray

Drilling Standards

EN1092 / ANSI / Rotec

Manufacturing Process

Manufactured by Hot Pressing SMC (up to DN300) and RTM (from DN350)

Suitable for PVC Stub Flange (Type BRPVC)

Diameter range [mm]

DN 10 – DN 300

Pressure ratings (BAR)

PN 4 – 16

Matrix (resin type)

Polyester

Color

DN10–DN300 grey (PVC color)

Drilling Standards

EN1092 / ANSI

Manufacturing Process

Manufactured by Hot Pressing (SMC)