Description
Tube Plug - 316 Stainless Steel
Tube Plugs are designed to seal off unused instrumentation tube fitting connections in fluid handling and process control systems. Manufactured from high-quality 316/316L stainless steel, these plugs provide secure, leak-tight performance in instrumentation, hydraulic, chemical, oil & gas, power generation, and industrial fluid handling applications.
Featuring DK-LOK’s precision tube fitting plug design, these stainless steel plugs offer dependable sealing capability, excellent corrosion resistance, and simplified installation for process control and instrumentation systems.
- 316/316L stainless steel construction
- Tube fitting plug configuration
- Designed to seal unused tube fitting ports
- Leak-tight instrumentation performance
- Excellent corrosion resistance
- Ideal for process control and instrumentation systems
- Available in multiple fractional tube OD sizes

Use our tube fitting reference documents and installation guides to confirm proper sizing and installation before ordering.
Tube Fitting Brochure PDF Installation Instructions PDFNeed more instrumentation fittings? Shop our full tube fittings category for unions, elbows, tees, adapters, ferrule fittings, and instrumentation components.