DN90/DN110 Siphonic Roof Drainage Outlet with PE and Stainless Steel Baffles for Steel Structure Warehouse Roof Drainage
DN90/DN110 Siphonic Roof Drainage Outlet
,PE Stainless Steel Baffles Siphon Drain Funnel
,Steel Structure Warehouse Roof Rainwater Drain
The Vantra High Flow Siphonic Drain Funnel is manufactured by Guangdong Wanquan and engineered specifically for prefabricated steel structure buildings. Fitted with PE and stainless steel baffles, it serves as a core component for efficient roof rainwater drainage and is ideal for prefab workshops, warehouses, and large-span exhibition halls.
| Bucket Diameter DN (mm) | Gravity Drainage System Discharge Volume (L/S) | Maximum Discharge Volume of Siphonic Drainage System (L/S) |
|---|---|---|
| 63 | 3.5 | 10.0 |
| 75 | 5.5 | 15.0 |
| 90 | 8.2 | 30.0 |
| 110 | 11.7 | 48.0 |
| 125 | 19 | 80.0 |
Stable siphon pressure delivers remarkable high-flow capacity during heavy rain.
Reduces the number of pipes required, simplifying the overall drainage layout.
Compact system design frees up valuable space within the building structure.
We enforce rigorous quality control throughout production. The main body adopts high-performance modified HDPE via precision injection moulding, featuring great toughness along with UV and ageing resistance. Stainless steel baffles and flanges offer superior rust and corrosion resistance, while matched sealing gaskets prevent roof leakage. Every unit undergoes watertight, flow, and dimension tests before delivery to ensure reliable quality.
The optimized baffle design suppresses vortexes and air intake to build stable siphon pressure. It delivers remarkable high-flow capacity during heavy rain to eliminate roof ponding and intercepts debris to reduce clogging and maintenance work.
It perfectly matches the waterproof layers of prefabricated steel roofs. Simple bolt installation fits fast modular construction, and it works seamlessly with standard HDPE siphonic piping. Multiple sizes are available for different drainage demands.
As a professional Guangdong manufacturer, Guangdong Wanquan supplies OEM & ODM services, technical support, and installation guidance for global contractors and distributors. Vantra siphonic drains are your dependable choice for prefab steel roof drainage projects.
The pipes are made from 100% new material with excellent corrosion resistance. They withstand a variety of chemical and electrochemical corrosion, and under normal working conditions they can be used for more than 50 years.
We accept OEM & ODM orders. We can manufacture according to the customer's drawing, and we can also put your logo on our products. Every order is 100% tested before shipment.
Die casting offers tolerances ranging from +/-0.003″ to 0.005″ per inch, and even as tight as +/-0.001″ depending on customer specifications.
Die cast parts can be produced with smooth or textured surfaces and a variety of paint and plating finishes. Finishes can be chosen to protect against corrosion and improve cosmetic appearance.
We usually charge a relevant sample fee, which is refundable when the order reaches a certain quantity. Samples help ensure our product meets your needs. Sample lead time is usually 2–4 days, and 10–12 days for batch goods.
Our twenty-four-hour service allows you to send information at any time of the day or night. We will reply to you within 12 hours.
We hold our own various patents and hydraulic calculation references. Our design team can develop customized products and can also design products according to your description.
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