Our high-precision Plain Sleeves and Steel Pipe Nipples are engineered for maximum durability and seamless connectivity in demanding industrial environments. Manufactured from premium carbon steel, alloy steel, and stainless steel, these fittings ensure a leak-proof seal and structural integrity for systems transporting water, oil, and gas across global infrastructure projects.
With a commitment to international quality standards, our product range supports various thread specifications including BS21, DIN2999, and ASTM A865-9. Whether you require heavy-duty series for high-pressure applications or custom-designed sleeves based on specific technical drawings, our 25+ years of manufacturing expertise ensures a product that meets your exact operational requirements.
Detailed Parameters
| Material Options | Carbon Steel, Alloy Steel, Stainless Steel | Standard Threads | BS21, DIN2999, ASTM A865-9 |
|---|---|---|---|
| Working Pressure | Max 1.5MPa (Test Pressure: Max 2.5MPa) | Temperature Range | -20°C to 120°C |
| Size Range (OD) | 1/8" to 8" | Wall Thickness | 0.5mm - 10mm (SCH20 to SCH160, STD, XS, XXS) |
| Surface Treatment | Galvanized, Electro-galvanized, Black/Shining Black | Model Types | Half Coupling/Socket, Full Coupling/Socket |
| Certification | ISO9001:2000, BV | Connection Shape | Female / Equal |
Key Advantages
Industrial Strength
Built with high-grade carbon and alloy steels to withstand extreme pressures up to 2.5MPa during testing.
Corrosion Resistance
Available in galvanized and electro-galvanized finishes to prevent oxidation in harsh environments.
Global Standards
Fully compliant with BS, DIN, and ASTM standards, ensuring universal compatibility worldwide.
Diverse Wall Thickness
Wide range from SCH20 to SCH160, allowing for precise matching with any pipe schedule.
Custom Engineering
Professional support for customized drawings and unique designs to fit specific project needs.
Certified Quality
ISO9001:2000 and BV certified production processes for consistent, high-reliability output.
Product Gallery
Management Platforms
Supply Chain Scale
Shipping 150-200 containers annually to key markets in USA, Russia, Mexico, and Europe.
Technical Expertise
Backed by 20 senior engineers and 50 senior technicians for precision manufacturing.
Quality Assurance
Full refund policy for any product quality defects found within six months of delivery.
Logistics Network
Flexible packaging options (Cartons, Pallets, Double Woven Bags) with 30-45 day delivery.
OEM Capabilities
Custom brand registration available with a minimum order of 10 tons per specification.
Export Dominance
Strong global presence with 70% of total sales dedicated to international export markets.
Investment Return Comparison
| Feature Metric | Standard Market Fittings | Our Professional Sleeves |
|---|---|---|
| Quality Certification | Basic/Local Standards | ISO9001:2000 & BV Certified |
| Pressure Resistance | General Grade | High-Pressure Tested (2.5MPa) |
| Surface Lifespan | Standard Coating | Enhanced Galvanized/Electro-galvanized |
| Customization | Limited Pre-set Sizes | Custom Drawings & Brand OEM |
| Warranty Security | Standard Terms | 6-Month Quality Refund Guarantee |
Frequently Asked Questions
We provide three primary material options: Carbon Steel for general strength, Alloy Steel for enhanced durability, and Stainless Steel for superior corrosion resistance.
Yes, we manufacture according to British Standard Threads (BS21), DIN standard Threads (DIN2999), and American Standard Threads (ASTM A865-9).
The maximum working pressure is 1.5MPa, with a rigorous hydraulic test pressure of up to 2.5MPa to ensure safety and reliability.
Yes, we accept customers' drawings for custom designs. For brand customization, the minimum order quantity is 10 tons per specification.
We offer Galvanized, Electro-galvanized, and Normal Black or Shining Black finishes depending on your environmental requirements.
Our normal delivery time is between 30 to 45 days after receiving the deposit, depending on the quantity and specifications of the order.
