Pneuflex Inc. Offers Oil and Abrasion Resistant Pneumatic Tubes. Pneuflex Inc. Is an ISO 9001: 2000 registered organisation that offers assorted range of industrial brakes, pneumatic clutches, industrial clutches, pneumatic brakes, combination clutch, combination brakes, disc brakes, disc clutches, etc. The Oil and Abrasion Resistant Pneumatic Tubes, also known as Seal-O-Grip Unions can be inflated up to 200 psi against the outside diameter of the connecting pipe. The Oil and Abrasion Resistant Pneumatic Tubes are used for speedy connect-and-disconnect of mud suction and return lines or other low-pressure fluid lines. A tight seal is maintained even if the pipe is misaligned within certain limits. The Pneumatic Tubes are available for popular oilfield line pipe sizes like 4, 6, 8 & 10 inch. The Seal-O-Grip body welds in place on mud tanks, manifold pipe and other fittings. The oil-resistant inflatable tube is heavy duty, abrasion-resistant and is designed for 200 psi maximum air pressure.