PP-HT AS Plus 90x90x90/87 four-way fitting IR (internal radial - gentle introduction), sanitary, for low-noise internal drainage, grey color 3080011

AS Plus PP-HT Quadruple Fitting – Low-Noise Drainage System

This 90x90x90/87° quadruple fitting from the AS Plus series is a key element in drainage installations in buildings where noise reduction is a priority. Made of polypropylene (PP), it is characterized by high durability and corrosion resistance, and its design with an 87° angle ensures optimal connection of pipes at unusual angles. It is a component of the Wavin AS+ system, which is distinguished by its exceptional sound-dampening properties.

Design and application

This quadruple fitting, designed for internal drainage, connects three pipes with a nominal diameter of DN 90 at an angle of 87 degrees. Made of PP-HT (high-temperature polypropylene), it is resistant to hot water – it can withstand a temperature of up to 90°C in continuous flow and 95°C in momentary flow. The AS+ system was designed with facilities requiring increased acoustic protection in mind, such as residential buildings, office buildings, hospitals, and laboratories. Thanks to the three-layer pipe structure (inner PP, PP core with mineral filler, and outer PP) and specially developed noise-reducing clamps, this system minimizes both airborne and impact noise.

Advantages and benefits for the installer and user

• Noise reduction: The AS+ system is characterized by an exceptionally low noise level – the sound level of the material Lsc, A is only 10 dB for a flow rate of 4 l/s (according to EN-14366). This translates into user comfort and compliance with stringent acoustic standards.
• Easy installation: The quadruple fitting is equipped with a self-lubricating blue gasket, which eliminates the need for additional lubricants. The beveled end reduces the force required to push the fitting in by as much as 50% compared to the standard AS system.
• Precise adjustment: Angular markings facilitate the adjustment of the fitting's position during angled installation, ensuring an accurate and stable connection.
• Durability and reliability: PP-HT material guarantees long-term operation and resistance to mechanical and chemical damage.
• Compliance with standards: The product meets industry standards, as confirmed by the certificates it holds (including the DVGW quality mark for water).
• Safety: The maximum working pressure is 0.5 bar at 20°C and at the maximum working temperature. The ring stiffness class is SN4.
• High-quality sealing: The gaskets are made of ethylene-propylene-diene monomer (EDPM) rubber, ensuring a tight and durable connection.

This quadruple fitting is an investment in a quiet and comfortable drainage system that will be appreciated by installers due to its ease of installation and end-users due to noise reduction and reliable operation.