BSPT Square Face Galvanized Square Edge Reducing Coupling Pipe Fittings
2.Threaded reducing joiner, corrosion-resistant .
3.Industrial water/gas pipeline size adaptation .
4.Hot-dipped galvanized, precision-threaded .
5.High-strength, anti-rust malleable iron .
6.NPT/BSPT compatible, pipe diameter transition .
7.Durable, secure reducing pipe connection .
8.Industrial-grade, corrosion-proof coupling
Description
BSPT Square Face Galvanized Square Edge Reducing Coupling Pipe Fittings
When your piping system requires seamless diameter transitions with maximum durability, BSPT Square Face Galvanized Square Edge Reducing Coupling Pipe Fittings provide the unwavering quality you require. These precision-engineered flexible press components interface channels of distinctive sizes whereas keeping up framework astuteness beneath high-pressure conditions. You'll advantage from our 26 a long time of fabricating mastery at Shanxi Taigu Zhiyuan Malleable Iron Company Limited, where quality meets innovation.
Our square confront plan gives predominant grasp surface for establishment devices, whereas the square edge support guarantees remarkable weight resistance. The hot-dip galvanized coating secures against erosion in requesting mechanical environments.



Technical Specifications
These fittings are made from premium blackheart moldable cast press. You get solid execution with ductile quality surpassing 350 MPa and great ductility for warm development assimilation. The exactness BSPT strings highlight a 55° flank point with 1:16 decrease proportion for leak-proof connections.
Our galvanization handle applies zinc coating averaging 70+ microns thickness, surpassing ASTM A153 benchmarks. This gives predominant cathodic assurance against rust and oxidation.






Key Features
- Square Edge Support: Improved divider thickness at string zones increments weight rating to PN25 (25 Bar)
- Superior Hold Plan: Square confront geometry anticipates apparatus slippage amid high-torque installation
- Corrosion Security: Hot-dip galvanized coating withstands unforgiving mechanical environments
- Precision Threading: BSPT strings guarantee leak-proof seals congruous with British Standard systems
- Thermal Resistance: Works dependably at temperatures up to 120°C at full weight, 300°C at diminished
Dimensions and Specifications Table
| Size Combination | Thread Size A | Thread Size B | Overall Length | Hex Width | Working Pressure |
|---|---|---|---|---|---|
| 1" × ¾" | 1" BSPT | ¾" BSPT | 45mm | 36mm | 25 Bar |
| 1¼" × 1" | 1¼" BSPT | 1" BSPT | 52mm | 41mm | 25 Bar |
| 1½" × 1" | 1½" BSPT | 1" BSPT | 55mm | 46mm | 25 Bar |
| 1½" × 1¼" | 1½" BSPT | 1¼" BSPT | 55mm | 46mm | 25 Bar |
| 2" × 1½" | 2" BSPT | 1½" BSPT | 65mm | 60mm | 25 Bar |
| 2½" × 2" | 2½" BSPT | 2" BSPT | 75mm | 70mm | 25 Bar |






Materials and Surface Treatment
Your fittings are cast from premium blackheart moldable press acclimating to ASTM A197 measures. This fabric gives uncommon affect resistance and ductility compared to standard dim cast press. The tempering prepare upgrades adaptability whereas keeping up auxiliary integrity.
Hot-dip galvanization makes a metallurgical bond between the zinc coating and base fabric. This handle guarantees uniform scope and predominant erosion security enduring decades in most mechanical environments.
Standards and Certifications
Our fabricating forms entirely follow to:
- BS EN 10242 (European Standard for malleable cast iron fittings)
- ISO 49 (International threading standards)
- ASME B16.3 (American dimensional tolerances)
- ISO 9001 quality management system
Application Areas
BSPT Square Face Galvanized Square Edge Reducing Coupling Pipe Fittings exceed expectations in requesting mechanical applications. You'll discover them fundamental in fire concealment frameworks where primary supply lines move to littler department systems. The square edge plan withstands sudden weight surges amid framework activation.
Petrochemical offices depend on these fittings for open air pipe rack establishments. The galvanized coating stands up to air erosion in unforgiving, saline, or sulfur-rich situations whereas flexible press assimilates warm development stresses.
Commercial HVAC frameworks advantage from the square confront plan, permitting appropriate torque application in tight spaces. This guarantees secure associations for hot water or cooling framework transport in high-rise buildings and fabricating plants.






Installation Instructions
Always utilize legitimate pipe threading compound or PTFE tape on male strings. Hand-tighten the fitting, at that point utilize fitting torques to total the association. The square confront plan obliges heavy-duty pipe torques for secure installation.
Ensure strings are clean and undamaged some time recently get together. Maintain a strategic distance from over-tightening, which may harm the galvanized coating or cause string galling.
Packaging and Shipping
We bundle your fittings in defensive cartons with anti-corrosion paper to keep up coating judgment amid transport. Our coordinations organize guarantees provoke conveyance from our 50,000 square meter office in Shanxi Province.
Standard bundling incorporates clear estimate stamping and establishment rules. Custom bundling choices are accessible for expansive orders.





Quality Control
Our comprehensive quality framework incorporates dimensional confirmation, weight testing, and coating thickness estimation. Each group experiences thorough review some time recently shipment, guaranteeing you get reliably solid fittings.
With 30,000 tons yearly generation capacity and over 1,000 item details, we keep up strict quality measures over all fabricating processes.
OEM and Customization Services
We offer total customization administrations counting extraordinary measurements, elective coatings, and private labeling. Our 38-person specialized group works with you to create arrangements assembly your particular application requirements.
Custom string designs, extraordinary materials, and interesting bundling alternatives are accessible to back your extend needs.






Frequently Asked Questions
Q: What's the difference between square edge and round edge designs?
A: Square edge provides larger grip surfaces for installation tools and enhanced pressure resistance through increased wall thickness at critical stress points.
Q: Can these fittings handle high-temperature applications?
A: Yes, they're rated for temperatures up to 120°C at full pressure, and 300°C at reduced pressure ratings.
Q: What's the expected service life?
A: With proper installation and maintenance, these fittings typically provide 20+ years of reliable service in most industrial environments.
Contact Us
Ready to enhance your piping system with premium BSPT Square Face Galvanized Square Edge Reducing Coupling Pipe Fittings? Our technical team is here to help you select the perfect solution for your application.
Email us at zhiyuan@mifittings.com for technical specifications, custom quotes, or application guidance. Experience the difference that 26 years of manufacturing excellence makes in your next project.
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