The QV70172 is an AS568-172 black Viton® (FKM) 75 Shore A quad profile Quad-Ring built to an inside diameter of 8.237 in (209.22 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.443 in (214.45 mm). This quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.
The compound resists many acids, petroleum oils and fuels, and chlorinated solvents. Viton® (FKM) offers very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where amines or hot water and steam are present.
It sees regular use in semiconductor equipment, aerospace, and oil and gas.
Reference part number QV70172 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description Q-172 FLUOROELASTOMER 75 Q RING
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 8.237 inch (209.22 mm)
Actual_OD 8.443 inch (214.45 mm)
ProductCode Description O-Rings - Square/Quad - Commodity