High Temperature Fire Resistant Spria Duct PVC Air Ventilation Flexible Duct Hose

Features
Flexible duct made of PVC flam-resistant, static-free fabric withsteel wire reinforced. it is able toendure acid, alkali, oleic acid ect. It is easily to turn, connect andmove.
Temperature range: from -20°C upto +100°C
Diameter:6" to 40" standard length:5m or 10m;
Keep save and effectively during working.With the strap or pp rope can conveniently connect to the portableventilator to use together.
Definition and Functions

Definition: Ventilation Duct is a piping system designed to transport air for purposes such as ventilation, air exchange, dust removal, or smoke evacuation.

Functions:

Ventilation and Air Exchange: By strategically positioning air inlets and outlets, it facilitates effective exchange of indoor and outdoor air, enhancing indoor air quality.
Exhaust Gas Removal: In kitchens of restaurants, hotels, and similar establishments, ventilation ducts serve as primary pollution control devices, discharging harmful gases like cooking oil fumes.
Air Supply and Cooling: In air conditioning systems, ventilation ducts distribute cool air, contributing to indoor temperature reduction.
Dust Removal and Smoke Evacuation: In factories, workshops, and similar environments, ventilation ducts equipped with dust removal devices help eliminate airborne dust. During emergencies like fires, they also function as smoke evacuation channels.
Types and Classification

Ventilation Ducts can be categorized into various types based on their applications and structural characteristics, including natural ventilation ducts, forced ventilation ducts, smoke exhaust ducts, etc. Natural ventilation ducts rely primarily on air pressure differences and gravity to facilitate natural airflow, while forced ventilation ducts utilize mechanical devices like fans and air volume regulators to increase airflow velocity and volume.

Working Principle

The working principle of ventilation ducts is rooted in the principles of air movement. In natural ventilation systems, air circulates between air inlets and outlets, refreshing indoor air and expelling stale air. In forced ventilation systems, mechanical devices like fans generate power, propelling air to flow rapidly within the ducts, ensuring forced air delivery and exhaust.

Design and Installation

The design and installation of ventilation ducts must adhere to specific standards and regulations to ensure their performance and safety. Design considerations include air flow rate, pressure loss, noise control, among others. During installation, it's crucial to ensure secure and leak-proof connections, sturdy supports, and flexible valve adjustments. Additionally, regular maintenance and cleaning of ventilation ducts are necessary to maintain their optimal operating condition.

In conclusion, Ventilation Ducts are indispensable facilities in construction, industrial, and other sectors, playing a vital role in improving indoor air quality and safeguarding the health and safety of personnel.