Electro-galvanized full-thread pipe coupling
2.Rust-proof full-thread steel pipe accessory .
3.High-adhesion galvanized full-thread fitting .
4.Industrial-grade full-thread carbon steel fitting .
5.Corrosion-resistant galvanized steel connector .
6.Precision-machined full-thread steel fitting .
7.Durable electro-galvanized full-thread accessory
Description
Electro-galvanized Full-thread Pipe Coupling
When you need reliable pipe connections with superior corrosion resistance and precise threading, our electro-galvanized full-thread pipe coupling conveys uncommon execution. This specialized tubular fitting is fabricated from high-grade carbon steel or flexible press, including inner strings crossing its whole length to consistently connect two strung pipe fragments. The electrolytic galvanization prepare makes a uniform zinc coating that avoids string clogging whereas keeping up strict resistances for leak-proof sealing.
Our couplings address basic industry challenges counting string rankling amid gathering, tasteful prerequisites for uncovered channeling, and cost-effective erosion assurance. You'll appreciate the smooth, shinning wrap up that's idealize for indoor applications where appearance matters.



Technical Specifications
Material Composition:
- High-grade Carbon Steel (ASTM A865)
- Malleable Iron (ASTM A197)
Surface Treatment:
- Electrolytic galvanization per ASTM B633
- Coating thickness: 5-13 microns (SC1 to SC2 service conditions)
- Optional chromate passivation for enhanced corrosion resistance
Threading Standards:
- NPT/BSPT threads meeting ANSI B1.20.1 specifications
- Full-thread design for complete engagement






Key Features
✓ Accuracy Threading - Uniform plating thickness guarantees idealize string engagement without re-tapping
✓ Prevalent Aesthetics - Shinning, glossy wrap up perfect for obvious installations
✓ Erosion Resistance - Zinc coating gives solid security in controlled environments
✓ Cost-Effective - Reasonable elective to stainless steel for suitable applications
✓ Smooth Insides - Anticipates weight drop in pneumatic systems
✓ Anti-Galling Plan - Dispenses with gathering issues common with uneven coatings
Dimensions and Specifications Table
| Size (inches) | Length (mm) | Internal Diameter (mm) | External Diameter (mm) | Thread Type | Pressure Rating |
|---|---|---|---|---|---|
| 1/8" | 25 | 6.3 | 13.5 | NPT | 300 PSI WOG |
| 1/4" | 30 | 9.2 | 17.0 | NPT | 300 PSI WOG |
| 3/8" | 32 | 12.5 | 20.5 | NPT | 300 PSI WOG |
| 1/2" | 35 | 15.8 | 24.0 | NPT | 300 PSI WOG |
| 3/4" | 40 | 20.9 | 30.0 | NPT | 300 PSI WOG |
| 1" | 45 | 26.6 | 36.5 | NPT | 300 PSI WOG |
| 1-1/4" | 50 | 35.1 | 45.0 | NPT | 300 PSI WOG |
| 1-1/2" | 55 | 40.9 | 52.0 | NPT | 300 PSI WOG |
| 2" | 65 | 52.5 | 65.0 | NPT | 300 PSI WOG |






Materials and Surface Treatment
Our electro-galvanized full-thread pipe coupling experiences a advanced cold plating prepare. The electrolytic galvanization stores zinc through electric current, making a exact, uniform layer without the string mutilation common in hot-dip alternatives.
The zinc coating gives amazing grip and ductility. You'll advantage from warm stun resistance and mechanical push resistance that guarantees long-lasting performance.
Standards and Certifications
- ASME B16.3 for malleable iron dimensions
- ASTM A865 for steel coupling specifications
- ASTM B633 for electrolytic zinc coating requirements
- ANSI B1.20.1 for threading standards
- ISO 9001 quality management system compliance






Application Areas
Commercial Indoor Systems: Idealize for HVAC and fire concealment establishments where aesthetics matter. The clean appearance and direct erosion resistance make these couplings perfect for uncovered ceiling applications.
Electrical Conduit Expansions: Fabulous for unbending metal conduit (RMC) joining. The smooth insides avoids wire harm whereas keeping up fundamental electrical establishing paths.
Light Mechanical Pneumatics: Ideal for compressed discuss frameworks requiring negligible weight drop. The smooth electro-galvanized wrap up avoids inside rust that might harm downstream equipment.
Installation Instructions
- Clean pipe strings completely some time recently assembly
- Apply suitable string sealant or tape
- Hand-tighten the coupling onto the to begin with pipe
- Thread the moment pipe into the inverse end
- Use fitting torques to accomplish last tightness
- Avoid over-tightening to anticipate string damage
Packaging and Shipping
Each electro-galvanized full-thread pipe coupling is exclusively assessed and bundled to anticipate coating harm amid transport. We utilize moisture-resistant bundling to keep up coating keenness. Standard shipping incorporates defensive caps on strung ends.





Quality Control
Our quality confirmation handle incorporates comprehensive string gaging utilizing calibrated plug gages. Salt splash testing per ASTM B117 confirms erosion resistance execution. Visual assessment guarantees appropriate coating attachment and uniform scope all through all strung areas.
OEM and Customization Services
We offer customization alternatives counting uncommon sizes, altered threading, and improved coating details. Our designing group works with you to create arrangements assembly your particular application requirements.






Frequently Asked Questions
Q: Can these couplings be used underground?
A: No. The thin zinc coating isn't suitable for aggressive soil conditions. Consider hot-dip galvanized alternatives for burial applications.
Q: What causes white powder on the surface?
A: This indicates zinc oxide formation from moisture exposure. Quality couplings include chromate passivation to prevent this issue.
Q: Are they compatible with stainless steel pipe?
A: Not recommended due to galvanic corrosion risks. Use dielectric unions when mixing different metals.
Contact Us
Ready to enhance your piping systems with our premium electro-galvanized full-thread pipe coupling solutions? Our technical team is here to help you select the perfect specifications for your project.
Email: zhiyuan@mifittings.com
Contact us today for detailed quotations, technical specifications, or custom manufacturing requirements. We're committed to delivering quality products that exceed your expectations.
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