Premium Mechanical Fittings for WardFlex Corrugated Stainless Steel Tubing (CSST)

Engineered to deliver a permanent, gas-tight mechanical connection, our Premium Mechanical Fittings are designed specifically for use with corrugated stainless steel tubing (CSST). Manufactured from high-grade forged brass, these fittings utilize a reliable metal-to-metal sealing seat that eliminates the need for internal gaskets, O-rings, or packing materials that could degrade, crack, or leak over time under constant environmental shifts. [1, 2]

Featuring a smart, split-ring sealing design, these fittings allow plumbing and HVAC professionals to establish safe gas-tight terminations in seconds using standard hand tools. This completely eliminates the need for pipe torches, threading machines, or heavy specialized pressing gear on the job site.

Key Features and Benefits

Patented Dual-Seal System: Utilizes a precision-machined mechanical clamping ring that creates a positive, leak-proof metal-to-metal seal directly on the tubing corrugations, ensuring total joint integrity under intense thermal cycling.
Flame-Free and Thread-Free Assembly: Safely cuts out the hazards of open torches, soldering smoke, and complex pipe cutting or threading machines, making it the ideal choice for quick retrofits in finished spaces.
Heavy-Duty Forged Brass Core: Machined from premium, robust brass alloys built to withstand heavy pipe wrench torque, physical impacts, and atmospheric corrosion over decades of continuous service.
Integrated Jacket Clamping System: Designed with an extended body collar that grips and seals the protective outer coating of the CSST, protecting the internal stainless steel core from external humidity and ambient chemicals.
Smooth Male or Female NPT Transitions: Available with precision-tapered National Pipe Thread (NPT) ends, allowing for an immediate, high-strength transition from flexible tubing to traditional black iron pipe headers or appliance valves.
Certified Code Compliance: Rigorously tested and fully compliant with ANSI LC1, CSA, and IAPMO safety standards, satisfying strict municipal mechanical and gas plumbing building code requirements.
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Technical Specifications

Product Classification: Mechanical Fitting for Corrugated Stainless Steel Tubing (CSST)
Material Composition: High-Strength Forged Brass Alloy
Sealing Type: Gasketless Metal-to-Metal Ground Joint (Mechanical Split-Ring Clamping)
Thread Specification: ANSI / ASME B1.20.1 National Pipe Taper Threads (Male or Female NPT Options)
Maximum Working Pressure: 25 PSI (Engineered to match the maximum pressure threshold of the host CSST piping)
Fluid Compatibility: Natural Gas and Liquid Petroleum (LP) Propane Gas Distribution Networks

Ideal Applications

Connecting Flexible CSST Gas Runs Directly to Traditional Black Iron Header Manifolds
Terminating Gas Piping Runs at Appliance Shut-Off Valves, Furnaces, and Water Heaters
Establishing Safe Structural Transitions from Exterior Gas Meters to Interior Distribution Systems
Retrofitting Interior Gas Infrastructure Loops in Residential and Commercial Remodels