Material Selection

Its very difficult to choose the right gasket for the job these days, there are just so many styles. There are many different packings with similar properties and prices. And with the ban on asbestos-based materials, there are many more styles being made to replace them. The four basic things you have to keep in mind when selecting a material are as follows: • Operating Pressure • Bolt Load • Resistance to chemical attack (Corrosion) • Operating temperature The corrosion resistance can vary based on a couple different factors: • The concentration...

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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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GS (General Service) Metal Bellows

Metal Bellows seals can seal with Flexible Graphite instead of a rubber boot or o-ring Elastomers allowing it to be used in higher temperature applications No Springs to clog. Metal Bellows seals are a very effective method of maintaining seal face pressure on the seal face. Metal Bellows seals that do use o-rings only require one static o-ring to seal off any leakage along the shaft in Chemical Service this o-ring can be Aflas, EPDM, Nitrle, Viton,...

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ASP Type 9 Mechanical Seal

Mechanical seals often need to be used in chemical applications. When confronted with some harsh chemicals, mechanical seals containing elastomers made of Viton, Kalrez or Chemrez can't hold up. Because PTFE (polytetrafluoroethylene)or as most people know it Teflon ® , has a 0-14 ph range it usually will hold up. Like most materials every choice has an up and a down side. PTFE will handle most chemical applications, chemical attack is no longer...

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Style 615 Graphited Non-Asbestos Packing

Description: Our Style 615 packing is manufactured from a synthetic yarn and impregnated with a petroleum and graphite lubricant. Due to its soft feel and composition, Style 615 adapts well to machinery that is out-of-spec due to wear and tear, such as with older pumps, valves, agitators and mixers. Style 615 is a prime material for use in centrifugal and rotary pumps, as well as valves with applications involving water, steam, aqueous...

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Style 649 Carbon/PTFE Packing

Description: Style 649 is a braided packing made of carbon fiber which is impregnated with PTFE dispersion. 649 is inert to almost all corrosive chemicals. When it is used for pumps, frictional heat is freely conducted to the stuffing box metal because of its excellent thermal conductivity. As a result, no or little damage will be caused to the shaft sleeve or to the packing. Although similar in cost, It can replace common non-asbestos (graphite/PTFE) packings,...

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What is O-Rings ? Learn Benefits of O-Rings

O-Rings O-rings are also known as the toric joint and they are a type of seal used in industrial applications. The advantages of using these types of rings are many because they come with a rounded cross section and most machines used in an industry are circular in shape. Because of being circular by nature, they automatically match the shape of the device without much difficulty. The origin of the o-rings dates back to the time in 1896 when it was first patented and was used in industries in the U.S. Later, sensing its versatile finish and...

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Style 698 Carbon Packing

Description: Braided from a blend of carbon yarns, Style 698 is impregnated with a proprietary blocking agent. Designed to be highly durable and easy to install, Style 698 packing is also a non-staining, self lubricating packing. Our unique blend of carbon yarns ensures extremely low shaft wear, while maintaining excellent heat dissipation. Typically used for severely caustic or corrosive media, this packing is suited for almost any high speed/high temperature pump or valve. Style Number: 698 Service: Pump and Valve Packing Product Type: Braided...

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PTFE Stem Packing

PTFE Stem Packing: Description: Our PTFE stem packing manufactured in the USA from 100% PTFE resin with no fillers or additives and is extruded, eliminating the leak path potential allowed by conventinal spiral tape wrapping. Our PTFE stem packing is also slightly expanded allowing grater compressibility under lighter compression loads. For customers requiring Graphite filler, Graphite can be added with loading levels as high as 20% by weight. Technical parameter: Temperature Min. -450ºF (-268ºC)/Max 500ºF (315ºC) Speed 200 fpm (1 m/s) Pressure...

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Ameri-lon Pump Packing

Construction: Cross-lock Braid Features: Manufactured from a skived PTFE and Graphite blend. No surface lubricant is required for this naturally lubricious packing, so it never washes out. Unlike filament yarn packings wicking is not an issue. This packing performs exceptionally in abrasive applications. It last long and stands up to tough applications. It is the most versatile valve or pump packing we sell which is why we gave it has Ameri- in it's name. Usage: As both PTFE and graphite are excellent sealing materials, they give Ameri-lon packing...

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Vulcan Multi-Spring Seals

Introduction Vulcan Multi-Spring Seals Vulcan’s extensive 16XX range of Multi-Sprung Seals are commonly specified for arduous applications, such as corrosive process fluids or demanding operating parameters. The standard designs are available with a chemically resistant PTFE wedge component, which is spring loaded to force the flexible angular lip of the wedge into tight contact with the shaft. The same spring force impacts a sufficient load...

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Vulcan Wave Spring Type Seals

Vulcan Wave Spring Type Seals Introduction :- The Vulcan Wave Spring Range of Bi-Directional mechanical seals offer proven design and wave spring technology, in a multitude of material combinations, with superior designs but at very competitive pricing. Applications :- This range was specifically designed for rotary lobe pumps, whose principle application is normally for liquids of high viscosity. These are commonly found in the food, dairy,...

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HARD FACED SINGLE CARTRIDGE SEAL

HARD FACED SINGLE CARTRIDGE SEAL < ASP Stainless Steel Single Cartridge Seal < Balanced < Multi-Directional < Flush Connection included < SC / SC Hard Face Standard < ASP SCS single cartridge seals are fully pre-assembled They are balanced and can be used in either direction of rotation. The energizing springs hold the seal faces together from outside the stuffing box, keeping them from clogging and losing compression....

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What is ASP TYPE 60 and How to works?

This seal is known as the friend of the maintenance man and can be used where a highly reliable, anti-clog seal is required. Long life is assured with the cool running AST 60 Seal. The floating rotary seal face eliminates seal face distortion inherent to shrink fit seal designs. Since the springs are isolated from the pump, you may be able to reduce or eliminate flushing and product dilution. Rebuild kits are available so you can rebuild the...

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