E99-347C43 - CGA 347 Stainless Steel Nipple

High-Pressure Stainless Steel Gas Connection Component

The Miller E99-347C43 Tailpiece is a critical component designed for high-pressure gas delivery systems utilizing the CGA 347 standard. Engineered from premium stainless steel, this tailpiece is specifically manufactured to handle the rigorous demands of industrial gas cylinders and manifolds operating between 3001 and 5500 PSIG. Unlike standard brass fittings, the stainless steel construction of this unit offers enhanced mechanical strength and superior resistance to corrosion, making it the preferred choice for high-purity applications and harsh industrial environments.

In the realm of industrial gas management, the integrity of the connection between the cylinder valve and the regulator or manifold is paramount. The CGA 347 connection is the standard for high-pressure inert gases such as Nitrogen, Argon, and Helium. This Miller tailpiece features a precision-machined sealing face that mates perfectly with the cylinder valve outlet, ensuring a gas-tight seal when compressed by the coupling nut. The use of stainless steel prevents the galling and deformation often seen in softer metals under high torque, ensuring that the fitting can be reused and maintained over a long service life without compromising safety.

This component is an OEM part from Miller Electric, ensuring strict adherence to dimensional tolerances and material quality standards. It is essential for facility managers and MRO specialists maintaining high-pressure laser cutting assist gas systems, laboratory gas distribution networks, or heavy-duty welding manifolds. By utilizing the E99-347C43, operators ensure that their equipment remains compliant with safety standards for high-pressure compressed gases. The tailpiece is designed to be used in conjunction with a compatible stainless steel nut to complete the CGA 347 assembly, providing a robust and reliable connection point for regulators, pigtails, and hoses.

Whether you are assembling a new gas distribution panel or replacing worn components on an existing regulator, the Miller E99-347C43 provides the reliability required for high-stakes industrial applications. Its compatibility with inert gases and high-pressure ratings makes it a versatile inventory item for maintenance departments dealing with varied gas supply requirements.