| Standard | DIN 3016/ 3017 |
| Surface Treatment | ZP, PL |
Product Introduction
Standard Name: Pipe Joint Clamp / Pipe Fastening Clamp.
Common Names: Pipe Clamp, Pipe Holder, Water Pipe Clamp, Joint Clamp.
Product Definition: A mechanical fastener used to connect, secure, or seal two pipes. Typically composed of an adjustable steel band (or specially shaped metal component) with bolts and an integrated sealing strip (e.g., rubber). Tightening the bolts generates uniform clamping force to achieve pipe connection and prevent leakage.
Duct Corner Key Features
Galvanized Steel Material: Made from commonly used galvanized steel sheet, providing excellent
corrosion resistance and strength, with a smooth and durable surface.
L-shaped or Corner Design: Standard L-shaped structure, inserted into the four corners of the duct
flange end, providing rigidity and sealing support.
Diverse Specifications: Common sizes include HI20 (20mm), HI30 (30mm), or larger, suitable for different
duct sizes; compatible with TDC (Transverse Duct Connector) or TDF (Transverse Duct Flange) systems.
Easy Installation: Directly inserted into the flange corners, secured with bolts/clamps to enhance the
overall rigidity of the duct.
Advantages: Leak-proof, easy to assemble, economical and durable, suitable for rectangular duct systems.

Working Principle
Flange Insertion: The corner bracket is inserted into the four corners of the TDC/TDF flange formed at the
end of the duct.
Rigid Support: The corner bracket provides mechanical strength, preventing flange deformation or
separation.
Sealing and Fixing: Used in conjunction with gaskets and bolts/clamps, ensuring airtight duct
connections and reducing air leakage.
Load Distribution: Evenly withstands wind pressure and vibration; the principle involves mechanical
interlocking and friction sealing.

Product Applications
HVAC Ventilation Systems: Assembling rectangular ducts, ensuring connection rigidity and low leakage
rate.
Construction Projects: Installation of ventilation ducts in commercial buildings, factories, or residential
buildings, for quick assembly.
Industrial Plants: Fixing large duct frameworks, resisting vibration and wind pressure.
Air Conditioning Systems: Connecting central air conditioning ducts, providing efficient airflow.
General Ductwork: Any rectangular duct project requiring TDC/TDF flange systems.