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Why Choose Us?

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Efficient High-Volume Drainage

Our system handles large rainwater loads with smaller diameter pipes and fewer downpipes—saving money on materials and installation.

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Minimize Constraints, Maximize Space

Our system works without sloped pipes, giving architects and builders more freedom and maximizing usable space.

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Self-Cleaning & Blockage-Free

High-velocity water flow keeps the system clean and blockage-free with minimal maintenance.

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Eco-Friendly, Long-Lasting Build

Made from recycled HDPE and reusable components, our system supports green building goals while offering long-term durability.

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Pioneering innovations in piping solutions

Smart Fastening. Silent Strength.

Smart Fastening. Silent Strength.

Akasison’s advanced fastening system reduces structural stress and absorbs vibrations, while leakproof electrofusion joints ensure long-term reliability.

Eco-Conscious Manufacturing

Eco-Conscious Manufacturing

Produced in environmentally responsible facilities, Ashirvad Siphonic Roof Drainage help reduce resource waste and lower your carbon footprint.

Customized Solution

Customized Solution

With over 20 years of global expertise, Ashirvad offers complete support—from custom design to on-site training and installation.

Ready to explore Ashirvad Siphonic Roof Drainage Syatem for your project? Let’s chat.

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What’s Flowing: Trusted Tips & Smart Plumbing Insights

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By joining forces with Aliaxis, we blend global R&D with local insights—paving the way for India’s water future.

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Frequently Asked Questions

What is a siphonic roof drainage system?

It’s a high-efficiency system that uses negative pressure to rapidly drain rainwater from large roof areas using fewer and smaller pipes.

Unlike gravity systems, siphonic drainage doesn’t require sloped pipes or multiple downpipes. This allows for more design flexibility, cleaner aesthetics, and reduced installation costs.

Yes, Akasison is ideal for high-rise applications and eliminates the need for vertical stacks.

Yes, with proper design adjustments, Akasison can be integrated into existing structures.

The system uses durable HDPE pipes with electrofusion joints, ensuring leakproof and long-lasting performance.

No, the high-velocity flow keeps the pipes clean, reducing the need for frequent maintenance.

Installation should be done by trained professionals. Ashirvad provides technical support and training to ensure proper setup.

Ensure the hydraulic design is done by certified professionals. Use only Ashirvad-approved outlets and fittings. Follow the installation guidelines for electrofusion joints. Conduct regular inspections after installation. Train your installation team with support from Ashirvad’s technical experts.

Do not mix siphonic and gravity systems in the same pipeline. Do not alter the pipe layout without consulting the design team. Do not use incompatible materials or adhesives. Do not ignore air-blocking requirements at outlets. Do not install the system without proper fastening and support.

A siphonic roof drainage system is designed to rapidly remove large volumes of rainwater by operating under full-bore flow. Ashirvad siphonic roof drainage solutions efficiently manage high rainfall intensity by creating negative pressure that accelerates water flow, preventing ponding and roof overloading during heavy downpours.

Siphonic drainage systems are ideal for large roof areas as they offer higher flow capacity with fewer outlets and downpipes. Ashirvad siphonic solutions enable efficient rainwater removal, reduced material usage, and greater design flexibility, making them well-suited for airports, warehouses, factories, and logistics hubs.

Accurate hydraulic calculation is critical to ensure the siphonic system achieves full-bore flow and optimal performance. Ashirvad siphonic roof drainage systems are designed using precise hydraulic modelling to balance pressure, flow velocity, and pipe sizing, ensuring safe and reliable operation at infrastructure scale.

Roof outlets and air baffles control air entry into the system, enabling the siphonic effect to activate. Ashirvad siphonic roof drainage solutions use specially designed outlets that restrict air intake, allowing negative pressure to build and ensuring efficient, high-capacity water flow from roof surfaces.

Siphonic drainage systems convey rainwater at higher velocities, allowing multiple roof outlets to connect to fewer downpipes. Ashirvad siphonic solutions help reduce the extent of vertical and underground piping networks, optimising space, simplifying layouts, and lowering overall infrastructure costs.