Black Steel Half Coupling
1. Carbon Steel Construction
Strong, durable, and pressure resistant.
2. Threaded & Weld End Design
Easy connection and installation.
3. Black Oxide Surface Finish
Provides corrosion resistance and protection.
4. Multiple Size Options
Available from 10mm to 20mm.
5. Wide Industrial Applications
Used in fire, gas, and water piping.
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Product Description
Product Overview
Black steel half coupling, also known as steel pap or half socket, is a carbon steel threaded pipe fitting with one female threaded end and one plain welding end. It is made of black carbon steel with natural black oxide finish, featuring high structural strength and reliable pressure resistance. Available sizes cover 10mm to 20mm. With great weldability and cost advantages, this Steel Socket fitting is widely used for pipeline extension, port transition and short-distance connection. It can be directly welded onto pipe ends for quick assembly, ideal for fire protection, gas, water supply and general industrial medium-pressure piping systems..
Product Features
- Product Name: Black Steel Half Coupling (Steel Pap / Half Socket)
- Size Range: 10mm – 20mm
Specifications Table (Dimensions & Parameters)
| LENGTH (mm) | |||
| Code | Size | w | L |
| FSB-HSP-10 | 10mm | 28mm | 11mm |
| FSB-HSP-15 | 15mm | 28mm | 11mm |
| FSB-HSP-20 | 20mm | 36mm | 21mm |
Product Applications
- Fire pipeline port connection and transition
- Natural gas and coal gas short-distance piping connection
- Medium and low pressure industrial water & oil delivery pipelines
- Auxiliary pipeline matching for mechanical equipment
- Temporary pipeline and reserved port connection projects
Installation and Maintenance
- Remove surface oxide scale before welding to ensure welding tightness
- Wind sealing tape evenly on internal thread for leak-proof effect
- Fully weld the plain end with the matching steel pipe
- Apply anti-rust coating if used outdoors for long term
- Periodically inspect welding seams and threaded joints for leakage
Related Products
Black Steel Full Coupling, Black Steel Thread Elbow, Black Steel Tee, Black Steel Nipple, Black Steel Plug
FAQ
- Can you supply OEM?
OEM is available. We can customize the product according to your specific requirements, including logo printing and packaging design.
- What’s the MOQ?
The MOQ is 500 pieces. For customized products with special sizes or surface treatments, the MOQ may vary.
- How about the order processing and lead time?
After order confirmation and receipt of the advance payment, we will arrange production. Generally, the products can be ready for shipment within 15-20 working days. Once dispatched, we will notify you and provide all necessary documents for customs clearance.
- What quality will be ensured?
All products are 100% new and undergo strict quality inspections, including pressure testing and dimensional checks, before delivery. We use sturdy wooden crates or cartons to ensure the products are well-protected during transportation.
- Can you guide the installation?
Yes, we provide detailed installation instructions in English and other major languages. Our technical support team is also available for online consultation and guidance if needed.
Contact Information
Sales Inquiry:
Provide contact information for sales inquiries.
Email: [email protected]
Phone: +86 13012223295
Technical Support：
If you have any questions regarding Steel Pipe Fitting installation, commissioning, operation or maintenance, please contact our technical support team for professional assistance:
Email: [email protected]
