Q-346 FLUOROELASTOMER 75 Q RING

The QV70346 is an AS568-346 black Viton® (FKM) 75 Shore A Quad-Ring measuring an inside diameter of 4.1 in (104.14 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.52 in (114.81 mm). This quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Viton® (FKM) is specified here for industry benchmark where nitrile reaches its thermal limit and long service life in hot, chemically aggressive environments. This material stands up to aromatic hydrocarbons, engine and transmission fluids, and chlorinated solvents. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It should not be specified for service in amines or low-molecular-weight organic acids. The profile itself contributes a parting line located away from the sealing surface and resistance to the spiral twisting that defeats round-section rings.

It sees regular use in oil and gas, automotive fuel systems, and semiconductor equipment.

Order part number QV70346, sold individually. Unit weight is approximately 15.021 g and nominal inside diameter is listed as 4 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.