4429-514AD MINNESOTA RUBBER QUAD RING

Part number VQ4429 is an AS568-429 black Viton® (FKM) 75 Shore A quad profile Quad-Ring measuring an inside diameter of 4.975 in (126.37 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.525 in (140.34 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

This material stands up to aromatic hydrocarbons, aggressive chemicals, and chlorinated solvents. Viton® (FKM) is widely chosen for outstanding high-temperature capability and long service life in hot, chemically aggressive environments. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It is not the right choice where amines or hot water and steam are present.

Maintenance and OEM teams specify it across high-temperature process equipment, semiconductor equipment, and chemical processing.

Order part number VQ4429, sold individually. Nominal inside diameter is listed as 5 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.