Top quality
Galvanized steel: Most popular thanks to its durability, rust resistance and reasonable cost. Suitable for most residential and industrial ventilation applications.
Stainless steel (stainless steel): Including types of stainless steel 201, 304, 316. Used in special environments requiring high durability, absolute corrosion resistance, heat resistance and strict hygiene (for example: food, pharmaceutical, medical factories, clean rooms).
Aluminum: Lighter and can be used in some specific applications.
Ventilation and air conditioning (HVAC) system: Seal the final duct ends of the air supply or air return system.
Dust and smoke extraction system: Cover unused branch pipe ends or the end of the main pipe.
Basement and factory ventilation systems: Protect pipes from industrial dust and dirt.
Outdoor installation: To prevent rainwater and insects.
Shape: Round disc or spherical/truncated cone, designed to match the diameter of the circular air duct.
Dimensions: Various, manufactured according to the diameter of the circular duct it will seal (e.g. D100mm, D200mm, D300mm, etc.).
Material thickness: Typically ranges from 0.5 mm to 1.2 mm or more, depending on pipe diameter and rigidity requirements.
Connection type:
Female End Cap: Designed to fit inside the duct.
Male End Cap: Designed to cover the outside of the duct (more common for spiral ducts).
Flange connection: For large ducts or systems that require easy installation and removal, duct seals can be designed with flanges to screw onto the duct flange.
Simple, easy to install: Uncomplicated design, easy to attach to the end of the pipe.
Low cost: It is a relatively cheap accessory.
High efficiency: Ensures tightness and effective system protection.
Durable: Made from metal materials, with good bearing capacity and corrosion resistance (especially stainless steel).
