3/4 inch x 4 inch Stainless Steel Nipple

3/4" x 4" 304 Stainless Steel Nipple – Threaded Fitting for Corrosive and High-Pressure Systems

The 3/4" x 4" stainless steel pipe nipple is a straight, threaded fitting manufactured from Type 304 stainless steel, offering resistance to oxidation and corrosion in water, gas, and industrial fluid systems. It is designed for threaded pipe connections where mechanical durability and system longevity are required.

This fitting features National Pipe Taper (NPT) male threads on both ends for secure connections to valves, couplings, or other compatible threaded components. The consistent inner bore and precision-cut threads support alignment and leak resistance in pressurized applications.

Material and Performance Specifications

• ✅ Material: ASTM A312 TP304 stainless steel
• ✅ Size: 3/4" nominal pipe size
• ✅ Length: 4 inches
• ✅ Threading: ANSI/ASME B1.20.1 NPT (Male x Male)
• ✅ Wall Type: Schedule 40 (standard wall unless otherwise specified)

Applications

• Process water and industrial fluid systems
• Compressed air and inert gas lines
• Hot and cold potable water piping (non-lead application dependent)
• Commercial HVAC and hydronic loops
• Food-grade and washdown environments, when appropriate

Installation Considerations

This fitting should be installed using approved thread sealant or PTFE tape to prevent leakage. Avoid over-torquing, as stainless steel threads are susceptible to galling. Use of anti-seize compound on threads is recommended when mating stainless to stainless to reduce friction and thread damage. Pipe wrenches rated for stainless materials should be used to prevent deformation.

Technical and Environmental Benefits

Type 304 stainless steel provides reliable performance in environments prone to moisture, mild chemical exposure, or thermal cycling. Its non-reactive surface is suitable for systems requiring cleanliness, corrosion control, and long service intervals.

Summary

The 3/4" x 4" 304 stainless steel nipple offers a durable, pressure-rated connection for threaded systems requiring corrosion resistance and mechanical stability. It is widely used across industrial, commercial, and utility piping networks where material integrity and precision threading are critical to system performance.