Galvanized GI Union FPT x FPT

Galvanized GI Union FPT x FPT – Professional Galvanized Iron Female x Female Union Fittings

Industrial-grade galvanized iron union fittings with female NPT threads on both ends, designed for creating removable connections in water supply, gas, and industrial piping systems with superior corrosion resistance and easy maintenance access.

Key Benefits

• Galvanized iron construction
• Superior corrosion resistance
• Female x female threading
• Removable connection design
• High pressure capability
• Industrial strength
• Long service life
• Easy installation
• Maintenance friendly
• Versatile applications

Technical Specifications

• Material: Galvanized iron (GI)
• Connection: Female NPT x Female NPT
• Configuration: Three-piece union (nut, seat, and shoulder)
• Pressure Rating: 150-300 PSI (varies by size)
• Temperature Range: -20°F to 400°F
• Thread Standard: NPT (National Pipe Thread)
• Coating: Hot-dip galvanized
• Standard: ASTM A197
• Color: Silver/Gray galvanized finish

Available Sizes

• 1/4″ FPT x 1/4″ FPT
• 3/8″ FPT x 3/8″ FPT
• 1/2″ FPT x 1/2″ FPT
• 3/4″ FPT x 3/4″ FPT
• 1″ FPT x 1″ FPT

Perfect For

• Water supply systems
• Gas line installations
• Industrial piping
• Fire protection systems
• Steam applications
• Compressed air systems
• Chemical processing
• Commercial plumbing
• Equipment connections
• Maintenance access points

Key Features

• Female Threading: Both ends accept male threaded pipes/fittings
• Removable Design: Three-piece construction allows easy disconnection without cutting
• Galvanized Coating: Hot-dip galvanized for maximum corrosion protection
• High Temperature: Suitable for steam and high-temperature applications
• Pressure Rated: Heavy-duty construction for high-pressure systems
• Universal Compatibility: Standard NPT threading fits all pipe systems

Application Instructions

1. Clean both female threads thoroughly
2. Apply quality pipe thread sealant to male pipe ends
3. Thread pipes into union halves hand tight
4. Align union halves properly
5. Hand tighten union nut first
6. Use wrenches for final tightening of connections
7. Support union to prevent stress
8. Test system for leaks

Pro Tips

• Use high-quality thread sealant or tape
• Support heavy galvanized fittings
• Don’t over-tighten union nut to avoid damage
• Check threads for damage before installation
• Use proper pipe wrenches to avoid marring
• Plan for thermal expansion in steam systems
• Install unions for future maintenance access
• Regular inspection for corrosion

Keywords: galvanized union, GI union, female union, galvanized iron union fitting, threaded union, industrial union, removable union, maintenance union