2 inch Carbon Steel 417G Gas Press Cap

2" Carbon Steel Press Cap – Press-Fit End Closure for Sealed System Terminations

The 2" carbon steel press cap is a mechanical end fitting used to terminate press-fit piping systems in closed-loop hydronic, compressed air, and non-potable water installations. Manufactured from ASTM A105 or equivalent carbon steel and finished with corrosion-resistant zinc or e-coat, the fitting provides a secure, permanent seal when installed using compatible press tools and jaw profiles.

Technical Specifications

• Nominal Size: 2 inch
• Material: Carbon steel, typically ASTM A105 or A53 Grade B
• Connection: Press-to-connect (compatible with standard press tools using M-profile jaws)
• Pressure Rating: Up to 200 psi (dependent on system design and application)
• Temperature Range: Typically -20°F to 250°F (verify with manufacturer specifications)
• Standards Compliance: Manufactured to meet ASME B31.3, MSS-SP-78, and applicable IAPMO or ICC listings for press fittings

Installation Guidelines

Install using approved press tools with calibrated M-profile jaws for carbon steel. Ensure that pipe ends are properly deburred and marked for insertion depth prior to pressing. No soldering, threading, or welding is required. Press joints form a permanent mechanical seal; verify with appropriate pressure testing before commissioning the system.

Application Areas

This carbon steel press cap is commonly used in:

• Closed-loop hydronic heating and cooling systems
• Industrial process piping (non-corrosive media)
• Compressed air systems
• Fire protection systems (non-potable, wet pipe where approved)

Material Consideration

Carbon steel press fittings should only be used in dry or closed systems that do not involve potable water or corrosive agents unless specifically approved. External protection may be necessary in areas subject to moisture or chemical exposure to prevent surface oxidation.