Inflatable Seal for Fluid Sealing

Market Applications: Fluid Sealing

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	Butterfly Valve Pneuma-Seal is ideal for butterfly valves in tight sealing applications. The clearance between the deflated seal allows for low torque rotation of the disk and eliminates the damaging effect of abrasion on the seal. When the disk is fully closed, the seal inflates radially inward against its edge to effect a leak-free condition. view animation
	Follower Plates Types 10A and 10B Pneuma-Seals are the ideal solution to sealing around the periphery of follower plates when pumping viscous liquids, for example grease, paste, and gum, from their container drums. The rectangular profile of these seals minimizes the tendency for the seal to "roll" out of its gland and be pinched when the follower plates descends, and the serrations on the sealing face minimize frictional resistance. view animation
	Rotary Valve Ports Ports and passages through rotary valves are readily sealed leaktight with Pneuma-Seal. The seals can be located in glands machined in the valve body to expand inward against the plug or they can be located in glands machined in the plug to expand outward against the valve body. When deflated, the plug can be rotated with minimum torque since there is no seal frictional force to overcome. When inflated, a tight seal is formed to control the direct flow of the fluid or solid material. Pneuma-Seal is available in a variety of elastomers to resist a wide range of chemicals. view animation
	Maintenance/Shutdown Seal Pneuma-Seal provides an excellent temporary shaft seal during shutdown and maintenance operations. It can be inflated against the stationery shaft while packings or mechanical seals are being changed thereby eliminating the necessity to drain mixers and agitators before the changeout. After the new packings or mechanical seals are in place, the Pneuma-Seal is deflated allowing the shaft to rotate without contacting the Pneuma-Seal. The same concept can be applied to the changeout of marine propeller shaft seals. view animation

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