Q-250 FLUOROELASTOMER 75 Q RING

Part number QV70250 is an AS568-250 black Viton® (FKM) 75 Shore A Quad-Ring built to an inside diameter of 4.984 in (126.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.262 in (133.65 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

It resists many acids, aromatic hydrocarbons, and aggressive chemicals. Viton® (FKM) offers very low compression set at elevated temperature, excellent resistance to compression set and permeation. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. The profile itself contributes lower compressive load required to achieve a seal and resistance to the spiral twisting that defeats round-section rings.

Typical settings include semiconductor equipment, chemical processing, and high-temperature process equipment.

This item is sold individually under part number QV70250. Unit weight is approximately 7.97 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. 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.