1 inch Stainless Steel Coupling Female x Female

1" Stainless Steel Coupling – Threaded Fitting for Corrosion-Resistant Piping Systems

The 1" Stainless Steel Coupling is a female threaded fitting used to join two sections of male-threaded pipe in pressurized and non-pressurized systems. Fabricated from 304 or 316 stainless steel depending on specification, this coupling is designed for high mechanical strength and resistance to corrosion in potable water, industrial fluid, or chemical distribution lines.

Machined to ANSI/ASME B1.20.1 NPT threading standards, the coupling supports a secure, leak-resistant joint when installed with compatible piping and sealants. It is suitable for a wide range of service conditions, including high humidity, thermal cycling, and chemical exposure environments.

Technical Features

• ✅ Material: 304 or 316 stainless steel for corrosion resistance in water, chemical, and HVAC applications.
• ✅ Nominal Size: 1 inch – NPT Female x Female configuration.
• ✅ Thread Type: National Pipe Thread Tapered (NPT) per ASME B1.20.1.
• ✅ Pressure Rating: Typically rated for 150–300 PSI depending on wall thickness and temperature conditions.
• ✅ Temperature Range: Up to 400°F (204°C) under continuous duty, depending on system media and pressure.

Installation Guidelines

Apply thread sealant or PTFE tape to male threads before tightening. Hand-tighten and finish with a wrench to the manufacturer’s recommended torque to ensure thread engagement and sealing. Over-tightening can distort threads and compromise sealing integrity. Compatible with stainless steel, brass, or Schedule 40/80 steel pipe depending on corrosion protection requirements.

Common Applications

Frequently used in potable water supply systems, industrial processing, food-grade piping, chemical distribution, compressed air, and mechanical rooms. Ideal for use in environments where galvanized or carbon steel fittings may degrade due to corrosion or chemical exposure.

Material Insight

Stainless steel couplings offer excellent resistance to pitting, scaling, and rust—making them suitable for coastal, humid, and high-temperature installations. Type 316 is preferred in chloride-rich environments for enhanced performance.

Code-Compliant Fitting for High-Demand Systems

The 1" Stainless Steel Coupling is a standard component for contractors seeking long-term durability, corrosion resistance, and reliable sealing in threaded piping systems. Engineered for performance in critical mechanical and plumbing installations.