Overview
The 316 stainless steel compression fitting is engineered for secure, leak-resistant connections in industrial piping and fluid systems. Type 316 stainless steel offers superior corrosion resistance compared to standard grades, making it ideal for chemical, petroleum, power generation, and laboratory applications. The female NPT (National Pipe Thread) connection accommodates standard male-threaded pipe while the compression end connects directly to tubing without tools or sealants.
Key Features
- Twin ferrule construction — double ferrule design creates a reliable, leak-proof seal on tubing connections
- Female NPT port — connects to standard male NPT-threaded pipe; no additional adapters required
- 316 stainless steel body — chemically hardened for higher strength and superior corrosion resistance
- High-pressure rated — suitable for high-pressure, high-vacuum, and high-vibration applications
- No tools or sealants required — compression design allows tool-free assembly and disassembly for maintenance
- Lot of 3 — multiple units for system expansion or spare inventory
Technical Specifications
- Material: Type 316 Stainless Steel (chemically hardened)
- Connection Type: Twin Ferrule Compression to Female NPT
- Thread Standard: National Pipe Thread (NPT) ASME B1.20.1
- Quantity: 3 units per lot
- Pressure Rating: Varies by size (typically 4,400–7,700 psi for female NPT ends)
- Applications: Chemical, petroleum, power generation, laboratory, and medical device industries
- Thread Sealant: Compatible with Teflon tape or pipe thread compound
Typical Applications
These compression fittings are widely used in:
- Chemical processing and handling systems
- Petroleum and oil & gas facilities
- Power generation plants and boiler systems
- Laboratory and analytical instrumentation
- Medical device and pharmaceutical manufacturing
- Marine and offshore corrosive-environment piping
- High-pressure fluid control and measurement systems
- Instrumentation and process control systems
Compatibility & Replacements
Compatible With
- Standard male NPT (MNPT) pipe threads
- Fractional and metric tubing (size-dependent)
- High-pressure tubing and hose systems
- ASME B31.3 process piping standards
- SAE J1926 compression fitting standards
Replaces / Drop-In Replacement For
Generic 316 stainless steel compression fittings are designed to intermix and interchange with industry-standard compression fittings from major manufacturers including Parker A-Lok, JW-Lok, and other branded compression fitting lines, provided tube sizes and NPT thread ratings match. Verify specific model compatibility before ordering to ensure proper sizing.
Works With
- All standard male NPT threads (1/16″ through 2″)
- Twin ferrule compression tubing (all major brands)
- Industrial tubing materials: stainless steel, carbon steel, copper, brass
- Pipe thread sealants: Teflon tape, PTFE pipe dope, anaerobic sealants
- Pressure-rated gauge and instrumentation systems




