Core Product Advantages
Reliable Sealing Protection
Fully enclosed hemispherical/flat-top structure, completely covering pipe ports.
Precision internal threads tightly fit the pipe's external threads, eliminating leakage risk.
Optional sealing gaskets to meet sealing requirements of different pressure levels.
Superior Protective Performance
High-quality malleable iron casting, robust structure, pressure-resistant and impact-resistant.
Hot-dip galvanized surface treatment, rust-proof and corrosion-resistant, extending service life.
Thick-walled design effectively resists external mechanical damage.
Convenient Installation and Maintenance
Standard thread specifications, simple and quick installation.
Top flat design facilitates wrench operation, saving effort during installation.
Removable and reusable, economical and practical.
Multi-functional Applications
Effectively prevents foreign objects, dust, and moisture from entering the pipeline.
Protects threaded ports from damage, maintaining interface integrity.
Hemispherical design distributes pressure, enhancing pressure resistance.
Application Scenarios
Suitable for end caps, reserved interface protection, equipment maintenance protection, test port sealing, etc. in all piping systems. Widely used in building water supply and drainage, fire protection systems, HVAC engineering, and industrial pipelines.
Choose malleable iron pipe fittings and caps to provide professional-grade protection for your piping system ports, ensuring system safety, cleanliness, and integrity.


