Pipe Fittings
Pipe Fittings Our pipe fittings are manufactured using advanced equipment and technology. To ensure optimal mechanical performance, we oversee all processes from design to delivery. Utilizing KTH330-08 malleable cast iron, our fittings exceed Chinese National Standards (GB) with a 10% higher tensile strength and 33% greater elongation rate. Every fitting is 100% compliant with standards.
Strict control of smelting processes guarantees uniform elemental composition and mechanical reliability. Although electric furnace smelting is significantly costlier than cupola furnaces, its stability ensures 100% material compliance. Our Group exclusively uses electric furnaces and offers compensation guarantees: ￥1,618 for defective gray iron parts and ￥500 for leak-test failures.
Our fittings feature scientifically optimized designs, including thread length, wall thickness, diameter, and relief groove structure. To ensure surface quality, we use premium washed sand and employ advanced automated sand-mixing systems with real-time monitoring. Fittings undergo either hot-dip or electro-galvanization based on application needs. Unlike competitors who galvanize after machining (a low-cost method causing poor internal coating, rust spots, uncontrolled thickness, and thread damage), we galvanize before machining. This preserves thread precision and ensures smooth installation.
GB specifies minimum thread lengths: 11.6mm (≈5 threads) for tapered internal threads and 14.5mm (≈6.3 threads) for external threads (1" size). We strictly control the thread base position for accuracy. Our tolerance (±1 thread) is tighter than GB’s (±1.25 threads). Additionally, our fittings meet international certifications including ANSI (U.S.), BS (UK), DIN (Germany), and JIS (Japan).
Thread angle deviation is tested via gauge rods or angle meters. While GB permits ±0.5° deviation, we maintain ±0.3°—40% stricter than national standards.
To eliminate defects like slag inclusions, porosity, or shrinkage causing leaks, each fitting undergoes individual air-tightness testing. Standards require withstanding 2MPa hydrostatic pressure or 0.5MPa air pressure. We exceed this with air pressure tests at >0.6MPa—20% above GB requirements.
(Note: This section repeats Section 5 in the original text. Translated as provided.)
To prevent leakage risks from casting defects, every fitting is individually tested. We enforce air pressure tests at >0.6MPa (>0.5MPa GB standard), ensuring 100% compliance.
Our fittings' precision (undamaged threads, optimal length, and angular accuracy) enables swift, effortless installation, significantly reducing labor costs.
We confidently assert: Our fittings offer China’s best cost-performance ratio—reducing operational expenses while ensuring long-term reliability for high-quality projects.
Contact us for galvanized fitting information or request a quote from our sales team!
FAQ As a global supply chain service provider with operations in over 30 countries and regions, our comprehensive product range—encompassing pipes, fittings, valves, and fire-fighting equipment—has obtained ISO international quality certification and complies with multiple regional standards, including CE, UL, and SASO. These products have been successfully implemented in various international scenarios, such as infrastructure projects in Southeast Asia, commercial complexes in the Middle East, and fire renovation projects in Eastern Europe. For both regular procurement and cross-border customization, we offer an integrated solution that spans product selection, customs clearance, and logistics management.
Absolutely. For overseas customization requests, our engineering team collaborates directly with international blueprints and technical specifications to provide multi-standard compatible designs, including wall thickness conversion and pressure grade adaptation. Additionally, we provide:
- Third-party testing reports for pre-production samples
- Packaging labels compliant with the destination country's regulations
- Bilingual technical documentation and compliance certificates to ensure smooth local acceptance
We enforce a global quality control system that surpasses national standards. Each batch undergoes rigorous testing, including raw material composition analysis, pressure burst tests, and salt spray corrosion resistance evaluations, accompanied by bilingual (Chinese-English) quality inspection reports. Based on project location requirements, we can furnish free certification documents for target markets, such as CE (European Union), UL (United States), and BIS (India). Furthermore, we support on-site inspections and remote video audits to ensure full transparency in the quality control process.
The standard delivery cycle for overseas orders ranges from 25 to 45 working days. We offer diverse shipping options, including full container loads, less-than-container loads, and air freight express services. Our international logistics network covers major ports and airports worldwide. To facilitate swift customs clearance, we provide essential international certification documents, such as certificates of origin and commercial invoices. Leveraging our bonded warehouses in Hong Kong and Shenzhen, select Southeast Asian orders can be expedited with delivery within 7 to 10 days.
We deliver cross-border after-sales support through a 7x12-hour customer service model (email/WhatsApp/phone) with a guaranteed response time of two hours and a resolution proposal within 24 hours. For warranty-related quality issues, we cover basic shipping costs from Chinese ports or airports to the destination port. Additionally, we provide remote technical guidance, bilingual materials, and coordinate online support with engineers when necessary.
Absolutely. As a one-stop supplier, we specialize in customizing products to match your unique project needs:
Customizable parameters: Pipe diameter (DN15-DN2000), valve pressure rating (PN10-PN400), material (304/316 stainless steel, carbon steel, galvanized steel);
Fire system customization: We collaborate with your engineers to design integrated systems (e.g., high-rise building fire pipelines + matching valves + sprinklers) and provide 2D/3D drawings for confirmation before production.
Sample production is available for testing prior to mass orders.
