Powder/Bulk Solids and Fluid Sealing
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Hopper to Transfer Car Inflatable Seal | |
| Pneuma-Seal inflatable seals can be installed on the mouth of a hopper valve or metering device and are designed to expand axially down to form a leak-tight seal around the fill opening in a transfer cart. Type 01A seals are best suited for this application (click image to view animation). |
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Follower Plate Inflatable Seal | |
| Types 10A, 10B, or 10X Pneuma-Seals are the ideal solution for sealing around the periphery of follower plates when pumping viscous liquids, such as grease, paste, or cake frosting from their container drums. The rectangular profile of these seals minimizes the tendency of "roll" out from the seal's retainer which can pinch the seal when the follower plate descends (click image to view animation). |
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Drum Filling Inflatable Seal | |
| Type 01 and 02 style inflatable seal work particularly well for drum filling applications where the seal on the cover expands radially outward against the inside of the drum to allow for for leak-tight filling (click image to view animation). |
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Bulk Bag Filler Inflatable Seal | |
| The inflatable seal on the filler spout expands radially outward to effect a dust-tight seal against the inside of the bag neck during filling. Any of the Type 01 or Type 02 Series of Pneuma-Seals work very effectively in this application (click image to view animation). |
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Mixer Lid Inflatable Seal with Square Corners | |
| Pneuma-Seal inflatable sealsl can be configured with pre-molded 90 degree corners to effect leak-tight seals for hinged or sliding covers on accessways and other openings in mixers and other powder/bulk or fluid handling processing equipment.Type 01A style seals are best suited for this application. (click image to view animation). |
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Inflatable Seal for Butterfly Valve | |
| Pneuma-Seal inflatable seals are 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.(click image to view animation). |
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Slide Gate Valve Inflatable Seals | |
| Pneuma-Seal inflatable seals provide the tightest seal possible for controlling the flow of very fine materials. The valve seal does not inflate until the blade is firmly in position, and then the seal inflates, creating a leak-free seal (click image to view animation). |
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Inflatable Seals for Rotary Union 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. (click image to view animation). |
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