Secure, corrosion-resistant, and built for reliability, the STZ Industries 3 in. FIP Galvanized Malleable Iron Cap is ready to seal off a 3-inch pipe with confidence. Designed for plumbing, irrigation, and light industrial applications, this cap combines a lead-free composition with a rugged galvanized finish to withstand moisture and everyday use.
Why this cap stands out
- 3" Female Iron Pipe (FIP) threading provides a standard connection to male-threaded pipes and fittings, ensuring straightforward installation in existing systems.
- Galvanized malleable iron construction offers strong, impact-resistant performance with durable corrosion protection for long-lasting service.
- Lead-free composition supports safe, compliant use in potable water and other clean-water applications.
- Maximum pressure rating of 300 psi and a temperature tolerance up to 150°F make it suitable for a range of residential and commercial piping scenarios.
- Bagged packaging keeps parts clean and organized for job-site storage and reduces handling mess.
Key specifications
- Product Type: Cap
- Material: Malleable Iron
- End 1: Diameter 3 in., Type FIP
- End 2/End 3: Not specified
- Finish: Galvanized
- Maximum Pressure: 300 psi
- Maximum Temperature: 150°F
- Packaging Type: Bagged
- Lead Content: Lead-Free
Ideal use cases
- Seal unused branches or sections of 3" piping in residential, commercial, and light industrial installations.
- Temporary or permanent closures on irrigation mains, water service lines, or drainage runs where a reliable cap is required.
- Systems that demand a durable, corrosion-resistant cap with a straightforward, standard-thread connection.
Practical installation tips
For best results, ensure threads are clean and free of debris before installation. Use an appropriate thread sealant or tape compatible with potable water if required by your project, and avoid overtightening to prevent thread damage. Verify that the system’s pressure and temperature stay within the cap’s rated limits to maintain a secure, leak-free seal.
Why choose STZ Industries
STZ Industries delivers dependable, lead-free fittings designed to resist corrosion and stand up to rigorous use. The 3 in. FIP Galvanized Malleable Iron Cap provides a reliable, long-lasting solution for sealing 3" piping with confidence—backed by a brand you can trust for quality and consistency in everyday piping projects.
