WESCO-5 - CGA-320 CO2 Regulator Washer - Black Fiber Flat Seal

Reliable Sealing for Carbon Dioxide Service

The CGA-320 Black Fiber Washer is a critical component designed to ensure the integrity of gas connections in high-pressure Carbon Dioxide (CO2) systems. Manufactured to precise industry standards, this flat washer acts as the primary seal between the cylinder valve and the regulator nut/nipple assembly. In compressed gas applications, particularly those involving CO2, the interface between metal components requires a deformable gasket to compensate for microscopic surface imperfections and prevent gas migration. This washer is engineered from high-density black fiber, a material selected for its excellent balance of compressibility and resilience under load.

With a pressure rating of 3000 PSIG, this washer is suitable for standard industrial and laboratory gas cylinders. The dimensions are strictly controlled, featuring an inner diameter (ID) of 0.250 inches, an outer diameter (OD) of 0.703 inches, and a substantial thickness of 0.125 inches. This thickness allows for adequate compression when the regulator nut is torqued, creating a gas-tight seal that resists vibration and thermal fluctuations common in gas withdrawal processes. Unlike rigid plastic seals, the fiber material conforms tightly to the mating surfaces, making it an ideal choice for connections that may be frequently coupled and uncoupled.

Proper maintenance of gas distribution equipment dictates the regular inspection and replacement of sealing washers. A compromised washer can lead to hazardous leaks, inaccurate flow readings, and accelerated depletion of gas supplies. This product is compatible with all standard CGA-320 fittings, widely used in beverage dispensing, welding, and industrial chemical applications. As a product made in the United States, it meets rigorous quality assurance protocols, ensuring safety and reliability for professional technicians and engineers managing gas delivery systems.