E99-320C43 - Miller CGA 320 Stainless Steel Nipple Fitting for CO2 Regulators

Premium Stainless Steel Gas Connection

The Miller E99-320C43 is a high-grade stainless steel nipple designed for use with CGA 320 connections, the standard for Carbon Dioxide (CO2) gas service. In the world of industrial gas distribution, the integrity of every connection point is paramount. This nipple is precision-machined to meet strict dimensional tolerances, ensuring a secure and reliable interface between gas cylinders and regulators or manifold systems. Unlike standard brass fittings, the stainless steel construction of this component provides enhanced mechanical strength and superior resistance to environmental factors.

Corrosion Resistance and Purity

One of the primary advantages of the E99-320C43 is its material composition. Stainless steel is inherently resistant to oxidation and chemical attack, making this nipple an excellent choice for applications where the equipment may be exposed to moisture, corrosive fumes, or cleaning agents. Furthermore, in applications requiring high gas purity—such as beverage dispensing, medical gas delivery, or specialized welding processes—stainless steel minimizes the risk of particulate contamination that can occur with softer metals over time. This ensures that the downstream equipment remains clean and functions at optimal efficiency.

Standardized Compatibility

Adhering to the Compressed Gas Association (CGA) standards, the CGA 320 profile of this nipple ensures it is exclusively compatible with CO2 valves and fittings. This standardization is a critical safety feature, preventing the accidental connection of incompatible gases. Whether you are assembling a custom gas manifold, repairing a regulator, or upgrading an existing system for better durability, this Miller OEM part provides the assurance of correct fitment and safe operation. It is designed to work seamlessly with standard CGA 320 nuts and washers (sold separately) to create a leak-tight seal capable of withstanding cylinder pressures.

Industrial Grade Reliability

Professionals in the gas industry rely on components that can withstand the rigors of daily use. The Miller E99-320C43 is built to endure the mechanical stresses associated with cylinder changeouts and system maintenance. Its robust design reduces the likelihood of thread deformation or physical damage during installation, providing a long service life and reducing the frequency of replacement. For facilities that prioritize safety and equipment longevity, choosing a genuine stainless steel nipple from a reputable manufacturer like Miller is a sound investment.