Product Parameters
Material: High-quality malleable iron (malleable cast iron)
Surface Treatment: High-temperature blackening and rust prevention
Connection Method: Double-ended internal thread (different thread specifications at both ends)
Reducing Diameter Specifications: Covers various common combinations (e.g., DN20×15, DN25×20, DN32×25, etc.)
Pressure Rating: PN10-PN16
Operating Temperature: -20℃ to 120℃
Key Features
✅ Reducing Diameter Connection – Innovative design, a single piece can achieve seamless connection of different pipe diameters, simplifying pipeline layout.
✅ Robust Integrated – Integral casting, high structural strength, stable pressure resistance, eliminating the risk of leakage at the connection.
✅ Precision Threads – Both internal threads are precision machined, ensuring high compatibility with standard external threaded pipe fittings and superior sealing performance.
✅ High-Efficiency Rust Prevention – A dense blackened surface layer provides excellent corrosion and rust prevention, suitable for various environments.
✅ Cost Savings – Replaces complex diameter-changing assembly solutions, reducing the use of accessories and saving installation space and costs.
Application Areas
• Retrofitting and connecting new and old pipeline systems • Diameter-changing connections between pumps, valves, and other equipment and main pipelines • Branch diameter changes in building water supply and drainage systems • Pipe diameter changes required for flow adjustment in industrial pipelines • Irrigation and fire protection pipe network systems
Quality Commitment
This product is manufactured strictly according to national standards for pipe fittings. Each product undergoes dimensional accuracy inspection and pressure testing to ensure reliable connections and performance compliance, providing durable diameter-changing connection guarantees for your pipeline projects.
Installation Tips: Before installation, please confirm that the external thread specifications of both pipes match the pipe clamps. It is recommended to evenly wrap PTFE tape or apply sealant to the external threads of the pipes and tighten using a double wrench in opposite directions to ensure a firm connection and a leak-free seal.
