Thermo-Chem™ firewall sheets, rope, tape, cloth and tubing are flexible, fire-resistant fabric products used in applications where flame and fuel resistance is required.
Their composition and construction from woven and texturized glass yarns, plain or wire-reinforced, form a non-porous,
When it comes to designing dynamic seals, the two most important application parameters are the pressure and the speed of the motion. These two factors chiefly determine the type of seal, design geometry, and seal materials you should choose.
When dynamic speeds and system pressures become elevated, determining the life expectancy of the seal becomes an important point of analysis. A seal that’s low friction, cost effective, and seals outstandingly is useless if it only lasts a few hours before wearing out.
To quickly gage the feasibility of a seal’s performance and provide a baseline metric, seal engineers use a calculation called Pressure-Velocity (PV).
Below we’ll explore what PV is, how it’s calculated, and what makes it an important tool in seal design.
Simply put, pressure-velocity is the product of the pressure and velocity. In other words, the pressure of the system multiplied by the surface speed of the dynamic seal interface.
For the sealing expert, the world of sealing terminology comes naturally.
But for those who don't live and breathe seals every day, the list of terms can quickly become quite daunting.
Thanks to our partners at Minnesota Rubber, this blog post will examine Part 1 of Sealing Terminology - the terms you may come across when looking for fluid sealing products.
Abrasion – Surface wear caused by relative motion between contacting objects
Abrasion Resistance – The ability of a rubber compound to resist surface wearing by mechanical action
ABS – Acrylonitrile-butadiene-styrene
Accelerator – A chemical compound that speeds up the vulcanization of natural or synthetic rubbers
Adhering Flash – Extremely thin flash (usually less than 0.002′ thick) that adheres to the finished part during molding or deflashing processes
Click read more to continue with the list!
The Style 204 family of spool-type expansion joints are manufactured with the industry standard narrow arch design. This style is intended to be used in dynamic conditions where both pressure and vacuum concerns are present.
A stainless hosing was used and would continuously fail due to abrasion on the leading edge of the hose. The hosing would last for 3 to 6 months before replacement.
This chemical plant based in Southern United States produces fluid catalytic cracking (FCC) catalysts, cocatalysts and additives used by petroleum refineries to convert crude oil into gasoline, other transportation fuels, heating oil and petrochemical feed stocks. Kaolin based microsphere intermediaries are used to manufacture the FCC catalysts and
Recognized as the leading supplier of perfluoroelastomer parts for over 40 years, DuPont offers a variety of high performing products that are formulated to give the best possible seal performance in numerous aggressive environments. Excellent balance of finished properties is achieved through careful use of proprietary polymers, cure systems, fillers and additives, resulting in superior seals for a broad range of applications.
Kalrez® 4079 is among the most popular of all Kalrez compounds. Released in the 1980's, this compound has been a mainstay and go-to
GYLON® Style 3522 gasket is made of 100% pure PTFE with no fillers or additives, making the material ideal for the most demanding, high purity requirements. Industries such as food, pharmaceutical, semi-conductor, recognize the uniformity of GYLON® 3522 that makes it an ideal gasket choice for those critical applications that cannot risk process contamination or premature failure.
It's a known fact that many facilities' sealing costs are higher than they need to be due to the plethora of materials and products used. One way to reduce costs is through standardizing the gasket material used in a facility. By simplifying the processes related to the procurement, maintenance, and inventorying of gaskets and seals, this can aid in the reduction of overall cost.
Mechanical seals, gaskets, O-rings, and packing can constitute a significant portion of a facility’s spend on sealing products. With respect to gaskets, the proliferation of different materials, different suppliers, and the applications they serve has led to complexity in the gasket selection and procurement process. So what do these costs involve? Gasket testing, evaluation and selection, procurement, inventory carrying and management,
The high-deflection seal design solves seal leakage from high shaft-deflection and alignment problems.
Seal leakage arises from many different factors including the misalignment of the shaft to the bore centerline, excessive dynamic runout of the shaft, shaft deflection caused by heavy loads, bearing issues, and improper seal installation. Many OEMs of off-road vehicle equipment, lawn-and-garden equipment, and recreational vehicles struggle with the performance of radial lip seals while under the influence of high lip-deflection from these issues.
Evidence of shaft deflection or misalignment in the sealing system appears as heavy, one-sided wear or as an irregular wear-pattern around the circumference of the seal lip. The wear or offset-loads against the seal lip results in severely reduced seal life, higher torque loads, and excessive heat.