Heating Welding Male Thread Joint

How to Choose the Right Heating Welding Male Thread Joint?

As an experienced manufacturer and supplier in China, Shenchi recommends the following steps when selecting the right product:

Step 1: Confirm Pipe Outer Diameter (Determines Welding End)

One end of the fitting is inserted into the pipe for welding, so the actual outer diameter of your pipe must be measured.

· Measurement method: Use a vernier caliper or measure circumference and calculate diameter.

· Common sizes:

o PPR or composite pipes: 1/2" (≈20mm OD) or 3/4" (≈25mm OD)

o Steel pipes: DN15 (≈21.3mm), DN20 (≈26.8mm), DN25 (≈33.5mm)

· Selection tip: The inner diameter of the welding end should be slightly larger than the pipe OD (typically 0.1–0.2 mm clearance) for proper insertion and welding flow.

Product Specifications

Key Structural Components

Shenchi designs each fitting with optimized structure for durability and performance:

· Welding End:

Forged from high-quality stainless steel with continuous metal grain, free of porosity. Designed with a standard bevel for efficient welding, ensuring strong fusion and permanent leak-proof performance.

· Threaded End:

Precision-machined threads with accurate profile and smooth surface. Strict tolerance control ensures tight engagement with mating fittings. Optional surface treatments (galvanized, nickel-plated, or natural finish) enhance corrosion resistance.

· Transition Zone:

Reinforced wall thickness with smooth arc transition reduces stress concentration, preventing cracking from thermal expansion or external force, improving overall strength and lifespan.

· Material Options:

o 304 Stainless Steel: Suitable for potable water and food-grade systems

o 316L Stainless Steel: Ideal for marine and highly corrosive environments

Maintenance Guidelines

The Heating Welding Male Thread Joint is designed for easy maintenance and long service life:

· Before installation: Ensure welding end is clean and free from oil or rust; check threads for integrity.

· During welding: Protect threads from welding spatter using wet cloth or anti-spatter agents. Allow natural cooling after welding.

· Disassembly: Use a wrench on the hex section; avoid gripping threads directly.

· Routine inspection: Recommended annually—check for corrosion, leakage, or loosening.

· Restart after downtime: Recheck sealing materials and thread connections before pressurizing.

Procurement & Service Advantages

Shenchi provides comprehensive support for global customers:

· ODM/OEM customization: Non-standard sizes, special threads, laser marking, and customized packaging available

· Strict quality control: Full inspection from raw materials to finished products, ensuring compliance with international standards

· Export packaging: Anti-rust and anti-shock packaging ensures safe delivery worldwide