Part number VQ4444 is an AS568-444 black Viton® (FKM) 75 Shore A Quad-Ring measuring an inside diameter of 7.725 in (196.22 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.275 in (210.19 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.
Viton® (FKM) is specified here for long service life in hot, chemically aggressive environments and outstanding high-temperature capability. The material holds up against engine and transmission fluids, aromatic hydrocarbons, and chlorinated solvents. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Verify compatibility before use with hot water and steam or amines. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and lower compressive load required to achieve a seal.
Typical settings include oil and gas, chemical processing, and aerospace.
VQ4444 ships individually. Nominal inside diameter is listed as 7 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description **4444-514AD MINNESOTA RUBBER QUAD RING
Actual_ID 7.725 inch (196.22 mm)
Actual_OD 8.275 inch (210.19 mm)
Actual_CS 0.275 inch (6.99 mm)
ProductCode Description O-Rings - Square/Quad - Premium