Patent Nos. 4250926, 4342336. » Click to enlarge « » Click to enlarge « » Click to enlarge «

Mechanical Seals / Pneumatic Seals Inflatable Door Seals & Other Custom Seals Standard & Custom Mechanical Seals and Pneumatic Seals Features: Pressure Tight Closure to 500 PSIG Featuring the Virtually-Indestructable "Double-Acting" Inflatable Ring Simple Design Minimizes Close Tolerance Requirements (Straight/Curved/Round) Custom Seals Mechanical Seals and Pneumatic Seals Applications: Sealing/Packing Wind Tunnels Underwater installations Radiation barriers Positive seal on water dam gates Automated lifting/gripping processes Mechanical Research & Design is the industry leader when it comes to producing high quality mechanical seals, pneumatic seals, inflatable door seals and other custom air seals. » Click to enlarge the images below «

How Pneumatic Seals / Inflatable Seals Work

Pneumatic seals or inflatable seals work by introduction of an inflation pressure into the cavity of the inflatable seal. This inflation pressure causes the displacement of the seal effecting a positive seal between the seal and the surface to be sealed. Once the seal inflation pressure is removed the seal returns to its uninflated position (memory).

Regulated air is the commonly utilized inflation medium while in some applications pneumatic (gas) or hydraulic (liquid) methods are suitable. Inflatable seals offer versatile configurations in three different planes: radially in, radially out, and axially.

Strips can be in closed ends, mitered ends,and continuous loops. Mechanical Research & Design can produce pneumatic seals / inflatable seals from many elastomers including Butadiene Styrene (SBR), Chloroprene (Neoprene), Ethylene propylene (EPDM) and Fluorinated Hydrocarbon (Viton®). Viton(R) is a registered trademark of DuPont Dow Elastomers

Mechanical Seals

"Sealfast" Mechanical Seals are made from the same extruded material as the inflatable seals are. This design allows the seal to be held by clamping on what we call the seal foot. The inside air cavity gives the mechanical seal room for compression therefore allowing some misalignment of the compression surface. The mechanical seals can be made in straight lengths, curved, continuous loops, or mitered corners. The "Sealfast" Mechanical Seal is manufactured to fit your application and is designed for long term usage where quality and durability are a must.

Custom Seals: Mechanical Seals and Pneumatic Seals

Accessory items such as machined seal housings and inflation control devices are available. Inflatable seals are available for immediate delivery from stock. CUSTOM SHAPES AND SIZES ARE ALSO AVAILABLE UPON REQUEST.

Mechanical Research & Design has patented the SEALFAST™ "Double-acting" Ring Principle as explained on the page entitled "SEALFAST™ Design" on this web site. (Patent Nos. 4250926, 4342336.)

ENGINEERING EXPERTISE TO DEVELOP  NON-STANDARD SIZES, CONFIGURATIONS & APPLICATIONS

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