Q-201 FLUOROELASTOMER 75 Q RING

Part number QV70201 is an AS568-201 black Viton® (FKM) 75 Shore A Quad-Ring supplied with an inside diameter of 0.171 in (4.34 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.449 in (11.4 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Viton® (FKM) is known for the industry benchmark where nitrile reaches its thermal limit and very low compression set at elevated temperature. This material stands up to chlorinated solvents, petroleum oils and fuels, and aromatic hydrocarbons. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where amines or ketones and esters are present. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and a parting line located away from the sealing surface.

You will find this material specified across oil and gas, automotive fuel systems, and semiconductor equipment.

Order part number QV70201, sold individually. Nominal inside diameter is listed as 3/16 inch. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.