Ventilation EPP Pipe and Fittings

I Product Description

Ventilation EPP Pipe and Fittings are manufactured from expanded polypropylene (EPP) through precision molding processes, representing a new generation of high-performance air duct systems. EPP consists purely of hydrocarbons, with solid components accounting for only 2%-10% of total weight and the remainder being gas, delivering exceptional lightweight properties, elasticity, and impact resistance. The product range encompasses straight pipes, elbows, tees, manifolds, terminal connectors, and a full series of matching fittings. Featuring food-grade environmental protection, superior thermal insulation, and integrated molded construction, EPP systems are widely deployed in passive buildings, premium residences, healthcare facilities, and educational institutions where indoor air quality and acoustic comfort are paramount.

I Product Features

● Food-Grade Material for Respiratory Health: EPP contains no plasticizers or foaming agents. Given that fresh air directly enters the human respiratory system, food-grade duct material is essential for ensuring air quality.

● Built-In Insulation Prevents Condensation: With thermal conductivity of 0.036-0.040 W/m·K, the closed-cell structure delivers remarkable thermal insulation. This effectively prevents condensation and dripping caused by temperature differentials, eliminating the need for additional insulation wrapping and meeting passive house standards.

● Lightweight Yet High Strength: EPP density is substantially lower than traditional plastics and metals, allowing easy cutting with standard utility knives and rapid installation without specialized tools. Socket-type connections eliminate solvent adhesives, completely avoiding VOC emissions.

● Integrated System Design, One-Stop Sourcing: From straight pipes, elbows, and tees to manifolds and terminal connectors, the complete fittings range is manufactured from identical EPP material, ensuring system compatibility and connection reliability for diverse project requirements.

I Technical Specifications

I Component Overview

I Product Specification

I Application

● Passive and Ultra-Low Energy Buildings: EPP’s excellent thermal insulation effectively prevents thermal bridging and condensation, making it ideal for passive house ventilation systems.

● Premium Residential and Villa Projects: For living environments demanding quiet operation and superior air quality, EPP ducts ensure silent, clean fresh air delivery.

● Healthcare and Educational Facilities: Hospital wards and school classrooms have stringent requirements for noise control and indoor air quality that EPP materials fully satisfy.

● Central Fresh Air Systems: Suitable for branch or manifold-type duct systems connecting distribution boxes to multiple terminal outlets.

I FAQ

1. What accessories are included in the EPP fresh air system? Can all accessories be purchased in one stop?

Ventilation EPP Pipe and Fittings include: from fresh air main ducts, elbows, tees, and straight connectors to EPP (sheet metal) distributors, aperture dampers, cyan flexible insulated round ducts, along with matching terminal outlet adapters, terminal silencers, indoor air outlets, etc. We provide a comprehensive series of accessories that can meet the one-stop procurement needs for various types of projects, ensuring system compatibility and connection reliability.

2. What are the core advantages of EPP ducts compared to PE and PVC pipes?

The core advantages lie in the triple integration of environmental friendliness, thermal insulation, and acoustic performance. PVC pipes often contain heavy metal stabilizers like lead and cadmium, and require adhesive connections, posing a risk of formaldehyde release. PE pipes, while environmentally friendly, have average thermal insulation and typically require additional insulation wrapping. EPP pipes are not only food-grade and environmentally friendly but also feature built-in efficient thermal insulation and excellent sound insulation. They require no additional wrapping, enabling convenient construction and offering the best overall performance.

3. Are EPP ducts securely connected? Is there a risk of air leakage?

EPP ducts use quick-connect fittings, and the material's inherent elasticity allows for a tight seal. During installation, it is recommended to first perform a dry-fit to ensure accurate dimensions, guaranteeing a secure connection and good airtightness. Compared to the higher leakage rates associated with snap-lock connections in sheet metal ducts, the EPP system has extremely low air leakage, a high effective air delivery rate, and meets the requirements of passive house standards.

4. How to select the appropriate main duct diameter?

Select the duct type based on the fresh air unit's airflow capacity: taking a unit with a 350 m³/h airflow as an example, an DN160 main duct is recommended. If a DN110 PE flexible corrugated round duct is chosen, the air velocity inside the duct reaches 13 m/s, far exceeding the standard requirements. This leads to excessive frictional resistance (approximately 40 Pa/m), significant vibration, and high system noise levels.