Dynamic Rubber Industries (DRI) is a leading inflatable seal manufacturer in the USA, specializing in custom non-reinforced (homogeneous) and fabric-reinforced inflatable seals. Our seals are engineered for applications where two surfaces must seal reliably while moving relative to one another.

Inflatable seals expand at a controlled rate using air or fluid pressure, creating uniform sealing force. Expansion rate, final size, and performance are determined by the seal’s profile, geometry, and elastomer selection. For specialized requirements, DRI engineers custom inflatable seal solutions to meet exact operating conditions.

Most DRI inflatable seals are custom fabricated, often using proven standard profiles to reduce tooling costs and lead times while maintaining performance.

Design Note: Additional tooling may be required for square or rounded corners or specific elastomer compounds. Extrusion development may require additional lead time.

Homogeneous inflatable seals are manufactured entirely from rubber and are ideal for applications requiring flexibility, fast turnaround, and cost efficiency.

Key Characteristics

• Operating pressure up to 25 PSI
• High flexibility
• Faster production lead times
• More economical for many applications

When properly designed and installed in a fully contained retainer, homogeneous seals can safely operate at pressures exceeding 65 PSI, depending on application conditions.

For high-pressure or safety-critical applications, DRI manufactures fabric-reinforced inflatable seals. These seals incorporate a high-strength fabric layer embedded within the rubber wall, significantly increasing pressure capability and durability.

Capabilities

• Operating pressure up to 90 PSI
• Increased structural integrity
• Improved tear and rupture resistance
• Longer service life in demanding environments

Fabric-reinforced seals are hand-molded and more complex to manufacture, resulting in higher cost—but they deliver superior performance where pressure and reliability are critical.

Dynamic Rubber Industries offers a wide range of inflatable seal profiles, including:

• Composite molding bladders
• Type 5 grooved seal profiles
• Inverted square profiles
• Square and rectangular profiles
• Round base profiles
• Foot base profiles
• Small-diameter inflatable sealing solutions

DRI can also match competitor cross-sections or engineer custom profiles as required.

DRI custom inflatable seals are used worldwide in demanding applications, including:

• Pharmaceutical & Medical: sterilizers, mixers, safety cabinets
• Marine: hatch and door seals, transoms, drive shafts
• Food Processing & Winemaking: smokehouse doors, wine tank floating lids, refrigeration
• Building & Construction: concrete forming, windows, doors, manholes
• Bulk Powder & Solids Handling: hoppers, big bag filling, valves, mixers
• Robotics & Automation: clamps, grippers, actuators
• Paper Industry: pulping equipment, doctor blades
• Semiconductor Manufacturing: load lock seals
• PCB Processing: aqueous cleaning systems, pressure and vacuum control
• Chemical Processing: reactors and vessels
• Pipelines & Infrastructure: pipe repair, slurry, and shaker seals
• Aerospace & Transportation: aircraft doors, composite molding, train and truck hatches