• Suitable for flat roof drain, plumbing vent, gooseneck and roof terminal
• Connection area between the top part and base element must be bonded and/or sealed properly
• The suitable PVC adhesive can be found in the range of accessories

Alternatively, Fleck offers base elements in DN 70–DN 125 for bonding-free installation and with integrated backflow seal.

Flange made of rigid PVC

• DN 50 (ventilation area: ~ 16 cm²; Flange: round)
• DN 70 (ventilation area: ~ 39 cm²; flange: round)
• DN 90 (ventilation area: ~ 58,8 cm²; flange: round) – NEW FOR BENELUX
• DN 100 (ventilation area: ~ 87 cm²; Flange: round)
• DN 125 (ventilation area: ~ 113 cm²; Flange: round)
• DN 150 ventilation area: ~ 188 cm²; Flange: round)
• DN 200 (ventilation area: ~ 298 cm²; Flange: square)
• DN 250 ventilation area: ~ 471 cm²; Flange: square)
• DN 300 ventilation area: ~ 754 cm²; Flange: square)
• DN 400 ventilation area: ~ 1,212 cm²; Flange: square)
• DN 500 (ventilation area 1,885 cm²; Flange: square)

Flange collar made of bituminous membrane (PYE PV 200 S4 sanded surface)

• DN 50 (ventilation area: ~ 16 cm²; Flange: round)
• DN 70 (ventilation area: ~ 39 cm²; flange: round)
• DN 90 (ventilation area: ~ 58,8 cm²; flange: round) – NEW FOR BENELUX
• DN 100 (ventilation area: ~ 87 cm²; Flange: round)
• DN 125 (ventilation area: ~ 113 cm²; Flange: round)
• DN 150 ventilation area: ~ 188 cm²; Flange: round)
• DN 200 (ventilation area: ~ 298 cm²; Flange: square)
• DN 250 ventilation area: ~ 471 cm²; Flange: square)
• DN 300 ventilation area: ~ 754 cm²; Flange: square)
• DN 400 ventilation area: ~ 1,212 cm²; Flange: square)
• DN 500 (ventilation area 1,885 cm²; Flange: square)

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