0997-0020 - Victor Brass Adaptor 1/4 NPT Male to 1 Inch NPS Left Hand

Precision Brass Adaptor for Industrial Gas Systems

The Victor 0997-0020 is a specialized brass adaptor designed to facilitate secure connections within industrial gas manifold systems and distribution networks. Engineered with the precision and reliability expected from Victor gas equipment, this fitting serves as a critical interface between standard piping and specialized equipment ports. The unit features a 1/4-inch National Pipe Thread Male (NPTM) connection on one end and a 1-inch 11-1/2 National Pipe Straight Left Hand (NPS LH) connection on the other. This specific configuration is often utilized in heavy-duty fuel gas applications where large-bore connections are required to maintain flow rates while ensuring safety through thread directionality.

Constructed from high-quality brass, this adaptor offers superior resistance to corrosion and mechanical wear. Brass is the material of choice for oxygen and fuel gas fittings due to its non-sparking properties and excellent machinability, which allows for tight tolerances and leak-free seals. The 1/4" NPTM end is tapered, allowing it to wedge into a corresponding female port to create a fluid-tight seal, often enhanced with PTFE tape or pipe sealant compatible with the gas in use. Conversely, the 1"-11 1/2 NPS LH end utilizes straight threads, typically relying on a mechanical seating surface or gasket to establish the seal, rather than the interference fit of tapered threads.

Safety is paramount in welding and gas distribution. The inclusion of Left-Hand (LH) threads on the NPS side is a deliberate safety feature standardized across the industry to designate fuel gas service (such as acetylene, propane, or propylene). This prevents the accidental connection of incompatible gases, such as high-pressure oxygen, which could lead to catastrophic equipment failure or combustion. By strictly adhering to these thread standards, the Victor 0997-0020 ensures that your manifold assembly remains code-compliant and safe for operators.

This adaptor is an essential component for facility maintenance teams, welding engineers, and gas system installers who require reliable, exact-fit components for maintaining or expanding gas distribution infrastructure. Whether you are retrofitting an older manifold or building a custom supply line, the Victor 0997-0020 delivers the performance and safety assurance required for professional industrial environments.