psVent™
Products

psVent™
Anti-Backflow Junction Device

psVent™ Anti-Backflow Junction Device
Product Overview

Patented
anti-backflow
technology

The psVent™ is a patented anti-backflow junction device — the critical component that enables the psBalcony™ pressurised drainage system to function. It prevents backflow of water from the main drainage stack into the balcony drainage branch, ensuring that even under peak flow conditions, water cannot surge back onto the balcony surface. Certified by TÜV SÜD and TSE.

System
Pressurised (psBalcony™)
Function
Anti-Backflow Junction
Patent Status
Patented
Certifications
TÜV SÜD, TSE
How it Works
Step 01
Water Enters Outlet
Rainwater enters the SLR™ or psOutlet™ on the balcony surface and flows into the two-phase balcony drainage branch pipe.
Step 02
psVent™ Junction
The balcony branch connects to the main drainage stack through the psVent™ — a patented junction device that controls the interface between the two-phase branch flow and the main gravity stack.
Step 03
Backflow Prevented
The psVent™ design prevents reverse flow from the main stack into the balcony branch under any hydraulic condition — ensuring the balcony remains clear even during peak storm events.
Key Features
Feature 01
Patented Design
The psVent™ uses a patented junction design to control two-phase flow at the point of connection between balcony drainage branch and main stack — the critical innovation that makes the psBalcony™ system work.
Feature 02
TÜV SÜD & TSE Certified
Independently certified by TÜV SÜD (Germany) and TSE (Turkey) — providing verification of backflow prevention performance under test conditions that simulate worst-case hydraulic scenarios.
Feature 03
System Essential
The psVent™ is an essential component of every psBalcony™ installation — it cannot be omitted or substituted, and its correct installation is critical to the performance guarantee of the complete system.
The heart of the
psBalcony™ system
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