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Material category	Plastic
RXNR	11-4-S
Designation	Geberit - Silent-db20
Manufacturer	Geberit
DN	90
Pipe end	Spigot
Material name	Polypropylene
Color (exterior)	Black
Applications	Drainage, HVAC/MEP Sector

ID (mm)	79
OD (mm)	90
Wall thickness (mm)	5.5

Geberit Silent-db20 easily fulfills existing requirements for sound insulation, because the sound insulation is already built in. During production, the mineral-reinforced plastic PE is used, which gives pipes and fittings an increased weight and effectively reduces natural vibrations and thus noise. Sound insulation ribs in the impact zones further reduce the noise development. In addition, system pipe clamps for wall mounting decouple the sewage system acoustically from the wall and ceiling and prevent the transmission of structure-borne noise.

Different connection technologies are possible depending on the application. Screwed tension connectors can be loosened and corrected at any time. Electrofusion sleeves easily and safely achieve complete tensile strength, for example for additional safety when laying in concrete or in tight installation spaces. Mirror welding is a traditional and safe connection technology on site or in prefabrication. It is separated and assembled without dangerous flexing. Processing residues can be reused as adapters or disposed of without any problems. A connection to the adapters from Crassus can also be easily established.

Silent-db20 is the house drainage system for domestic wastewater and conventional rainwater pipes to meet the sound insulation requirements according to DIN 4109 and VDI 4100. The Silent-db20 pipe prevents airborne sound transmission and guarantees structure-borne sound decoupling. To prevent structure-borne noise transmission, insulation is required wherever direct points of contact between the structure and the pipe system exist or can arise.

Source: Geberit Vertriebs GmbH

Flexible pipe connections

CRA10085

Pipe Reducer CGA 105 | 90

105 mm | 90 mm

up to 0.5 bar / 7.3 PSI

CRA10014

Multi Pipe Reducer CKA 100-105 | 90/75

100-105 mm | 90 / 75 mm

up to 0.5 bar / 7.3 PSI

CRA11017

Plug Adaptor CSA 070

69-75 mm | 73-85 mm

up to 0.5 bar / 7.3 PSI

CRA10009

Pipe Reducer CMA 110 | 90 (Black)

110 mm | 90 mm

up to 0.5 bar / 7.3 PSI

CRA12049

Adaptor Coupling CAC 0894

75-90 mm | 53-64 mm

up to 0.6 bar / 8.7 PSI

CRA12031

Adaptor Coupling CAC 0923

82-92 mm | 48-56 mm

up to 0.6 bar / 8.7 PSI

CRA12032

Adaptor Coupling CAC 0924

82-92 mm | 60-68 mm

up to 0.6 bar / 8.7 PSI

CRA12052

Adaptor Coupling CAC 1155

100-116 mm | 75-90 mm

up to 0.6 bar / 8.7 PSI

CRA12040

Adaptor Coupling CAC 1221

110-122 mm | 80-95 mm

up to 0.6 bar / 8.7 PSI

CRA12056

Adaptor Coupling CAC 1361

121-136 mm | 80-95 mm

up to 0.6 bar / 8.7 PSI

CRA14027

Drain Coupling CDC 095

80-95 mm

up to 0.6 bar / 8.7 PSI

CRA14036

Standard Coupling CSC 095

80-95 mm

up to 2.5 bar / 36.3 PSI

CRA11022

Plug Adaptor CSA 090

73-90 mm | 79-86 mm

up to 0.5 bar / 7.3 PSI

CRA12040FKM

Adaptor Coupling CAC 1221 FKM

110-122 mm | 80-95 mm

up to 0.6 bar / 8.7 PSI

CRA14027FKM

Standard Coupling CDC 095 FKM

80-95 mm

up to 0.6 bar / 8.7 PSI

CRA12026

Adaptor Coupling CAC 0893

75-90 mm | 40-50 mm

up to 0.6 bar / 8.7 PSI

CRA14057

Drain Coupling CDC 098

85-100 mm

up to 0.6 bar / 8.7 PSI

CRA14058

Standard Coupling CSC 098

85-100 mm

up to 2.5 bar / 36.3 PSI

CRA14036FKM

Standard Coupling CSC 095 FKM

80-95 mm

up to 2.5 bar / 36.3 PSI

Special products

CRA15072

Flexible Branch CFA 090 (78-90, 3'')

78-90 mm

up to 0.6 bar / 8.7 PSI

CRA15068

Flexible Bend CFB 090 (90°, 78-90, 3'')

78-90 mm

up to 0.6 bar / 8.7 PSI

CRA15076

Outside End Cap CEC 092

82-92 mm

up to 0.6 bar / 8.7 PSI

CRA18639

Inside End Cap CSV 80 PVC

70-87 mm | 1/2 mm

up to 0.5 bar / 7.3 PSI

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