What are the different styles of PTFE

Molded and Sintered PTFE: This type of PTFE was the first to be introduced to the market. This style is made from virgin or reprocessed PTFE resin, without fillers, which is then molded, compressed and sintered. As with any other type of plastic, PTFE has a high creep factor when compressed. The creep factor is detrimental and can lead to having to re-tighten the bolts to maintain seating pressure and prevent leakage. The higher the temperature in the application it is used for, the more the creep factor will increase. Even with these drawbacks,...

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Types of Cartridge Seal

Single Cartridge Seal A versatile single seal for use in a wide variety of applications. Stationary Seal Self-Centering Lock Ring Adjustable gland tabs Monolithic Seal Faces Low heat generation Non fretting pump/seal parts 360 degree flush port orientation Low emissions design Buy online : http://www.sealsales.com/MScart1.shtml Double Cartridge Seal Double Cartridge Seal is a general duty, dual seal for plant wide use. Geometric Double...

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Why Mechanical Seals ?

One of the most important advantages of the mechanical seal is its low leakage rate, resulting in a cost saving because of the reduxtion in lost liquid. The hazards of fire and personal injury are also reduced when the pumps are handling inflammable or toxic products. Simplified pump designs and reduced maintenance costs are also plus factors. Mechanical Seals Online Shopping in USA by mechanical-seal The Most Common Seal Consists of a stationary...

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Rubber Molding

Ever look at a molded rubber part and ask yourself “how do they make that”? Those of us that had toys that would surely be ruled as unsafe for children today, just might have had a small rubber molder. The advantages of being able to create worms, spiders, and cockroaches that looked, real but did not hurt when your older sister threw it at you...was priceless. I had no idea at the time, but it served a my introduction to the rubber industry. I’m sure I used that machine until I ran out of the included silicone compound, or until I burned...

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PTFE Gaskets

Polytetrafluorethylene or PTFE is a polymer with an exceptional chemical resistance and is the most widely used plastic for industrial sealing. The only substances that attack PTFE are liquid alkaline metals and free fluorine. PTFE Gasket products are manufactured by taking either pure PTFE or PTFE with other materials mixed in and sintering or extruding it. Sintering is a process where powdered material is held in a mold and then heated to a...

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Sealing why we need gaskets?

IF it was possible to manufacture flanges to be perfectly smooth and polished, and IF it were possible to maintain these surfaces in permanent contact, then we simply wouldn't need gaskets. Unfortunately this is an impossibility which results from several factors: ! The size of the vessel and/or flanges. ! Difficulty in maintaining these surfaces while handling and installing. ! Corrosion or errosion of the surface over time. To overcome these...

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Three extreme in-house tests for ProTech and competitive Seals

ProTech and Competitive Seals were subjected to three extreme in-house tests with ProTech clearly the seal of choice. They are, 1. Oil Leakage Test 2. Water Exclusion Test 3. Dust Exclusion Test 1. Oil Leakage Test ProTech and other seals were subjected to critical oil seal testing using a test machine built to SAE J110 standards. One-hundred hour tests were conducted with severe oil splash. 2. Water Exclusion Test The test machine was...

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EPDM Gasket Material

Description: Ethylene Propylene Diene Monomer (EPDM): EPDM is a black plate finish sheet with superior resistance to weathering, ozone and UV exposure. EPDM also provides excellent chemical resistance*, and good electrical properties. EPDM resists animal and vegetable oils, steam, water and oxygenated solvents. This material meets ASTM D-2000-2BA specifications. High grade material including Mil-specification is available. EPDM is also available in...

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