4209-514AD MINNESOTA RUBBER QUAD RING

The VQ4209 is an AS568-209 black Viton® (FKM) 75 Shore A Quad-Ring with an inside diameter of 0.671 in (17.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.949 in (24.1 mm). This quad-ring provides a dual sealing band on each contact face for improved reliability.

Viton® (FKM) is specified here for outstanding high-temperature capability and industry benchmark where nitrile reaches its thermal limit. Expect good resistance to petroleum oils and fuels, aromatic hydrocarbons, and many acids. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Verify compatibility before use with ketones and esters or amines. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

It sees regular use in semiconductor equipment, aerospace, and chemical processing.

Reference part number VQ4209 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation.