Specifications and Applications of Metallic "O" Ring Seals:

The metallic O-Ring Seals of Kwality products can be used where non-metallic seals will not seal properly or do not offer the required reliability for the application, usually due to temperatures, pressures, or the environment. Metal O-Ring Seals are long lasting seals and unlike non-metallic seals, they are not subject to failure due to incompatibility with the environment, out gassing or from deterioration due to age.

O-Ring Seals are generally fabricated from tubing consisting of stainless steel or high temperature alloys such as Inconel (currently in development). These materials are frequently used because they offer resilient properties that enable the seal to "Spring-Back".

Hollow metal O-Rings are used as static face type seals and should not be used as a dynamic seal. While the majority of seals are circular, many seals are produced in rectangular, racetrack, and other various shapes and configurations with limitations only on the corner radii.

The following are key elements in specifying the proper seal determining the base material:
• Temperature limits/duration
• Media to be sealed
• System pressure
• Available seating load

Plating and Coatings
Plating or Coating of the O-Ring Seal provides a soft malleable surface that will smear into small imperfections in the mating hardware, enhancing seal performance.

Shaped Seals
Metallic O-ring Seals can be produced in various shapes.

Application Characteristics
The typical application places a Metallic O-Ring Seal in an axial compression between two parallel surfaces, which are square to the fluid passage or vessel axis. The seal is usually located in an open or closed groove in one of the surfaces. The seal can also be located in a retainer, which eliminates the need for machining a groove. The mating hardware when bolted, torque, clamped or fastened tightly to the surface enclosing the ring, compresses the seal, forming a positive joint

O-Seals are commonly used in the following industries.
• Aerospace
• Oil and petrochemical industries
• Nuclear
• Plastic molding
• Chemical/Plastics
• Vacuum Processing/Research
• Diesel engines
• Valves
• Pumps
• Compressors

Standard Type:
Currently Kwality Products is offering the standard type of seal. The type is not self energized or pressure filled produced of different metallic tubing’s or solid wire and most reasonable o-ring type for low to moderate pressure or vacuum ratio.