Crassus - be smart. be a Problemlöser.

Material category	Plastic
RXNR	211-3-S
Designation	Maincor - MAINAIR Ventilation Duct
Manufacturer	Maincor
DN	90
Pipe end	Spigot
Material name	Polypropylen PP-HM
Color (exterior)	Blue
Applications	Ventilation

ID (mm)	75
OD (mm)	90
Wall thickness (mm)	7,5

MAINAIR Ventilation Duct

The ventilation duct is used as a supply or exhaust duct in rooms with centralized systems for controlled residential ventilation. It is a flexible duct constructed in a composite design, featuring a corrugated outer layer and a smooth inner layer. The duct is hygienically tested and equipped with a protective cap. The outer layer is pressure-resistant, while the inner layer is designed with a special coating to be quiet and antistatic. The ducts meet the requirements of DIN EN 61386-24.

Flexible pipe connections

CRA10085

Pipe Reducer CGA 105 | 90

105 mm | 90 mm

up to 0.5 bar / 7.3 PSI

CRA10013

Multi Pipe Reducer CKA 75/70 | 50/40

75 / 70 mm | 50 / 40 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

CRA18638

Inside End Cap CSV 70 PVC

60-77 mm | 1/2 mm

up to 0.5 bar / 7.3 PSI

CRA18639

Inside End Cap CSV 80 PVC

70-87 mm | 1/2 mm

up to 0.5 bar / 7.3 PSI

Important: All brand names and trademarks mentioned on this website are the property of their respective owners. The mention of these names and designations is for informational purposes only and does not imply any cooperation or partnership with the respective manufacturers (nominative use). The information and descriptions provided are for general overview purposes and do not constitute binding product advice or recommendation. Despite careful research, no guarantee is given for the completeness, accuracy, or timeliness of the content. All images shown (product images, graphics, etc.) were created by Crassus GmbH & Co. KG or recreated for demonstration purposes. They may differ from the original product. No liability is accepted for material or immaterial damages caused by the use or non-use of the information provided or by the use of incorrect or incomplete information. If manufacturer texts or information are summarized or quoted in our own words, this is done in a manner that respects the copyrights of the respective rights holders. Further use of the content published here requires our express consent and, if necessary, the approval of the respective rights holder.