Difficult seal applications come from all industries and sectors of the economy.
While far-reaching operating conditions certainly consume their fair share of engineering hours, often one constraint also probes the boundaries of sealing technology and design ingenuity: limited hardware space.
A manufacturer was using a pneumatically actuated cylinder to dispense a chemical in a production process. The piston was drawn back in the cylinder thus filling it with the chemical product. The piston was then pushed forward to dispense the chemical out of a nozzle.
Have you been frustrated with going through multiple design iterations when rubber components are failing due to high stresses or your device has been leaking due to insufficient compression? Have you lost months and months of precious time having to recut tools and make design changes?
Finite element analysis, also known as FEA, is an effective tool used in design iterations. It allows for different design ideas, options, and alterations to be quickly, effectively, and precisely compared.
Using FEA can improve both the speed and quality of product design as well as reduce the overall cost. Rubber parts, such as silicone diaphragms, septums, seals, valves, tubing, and balloons are critical components in today’s medical devices that can benefit from the use of FEA.
The shape and size of irregularities on a machined surface have a major impact on quality, performance (leakage), and longevity.
The quantification and management of surface irregularities, through the measurement of surface roughness, is necessary to maintain high product performance.
Part 3 of our video series on Surface Finish will examine important elements of why and how we measure surface finish. The full table of contents is below:
Part 3 will discuss:
1. Why we measure Surface Finish
2. Types of surface roughness
3. How we measure surface finish
4. Contact & Non-Contact measurement considerations
High temperature gasketing excels in the harshest conditions—intense heat and high pressure. These high performance gasket materials have been laboratory tested for fire safety. They maintain an effective seal during pressure and temperature fluctuations, and their excellent torque retention lowers leakage rates and reduces maintenance time.
This blog post will examine the five types of high temp gasket material that GFS carries from Garlock and Thermoseal Klinger.
Rod Seals are the most important seal within any hydraulic sealing system. Rod Seals prevent leakage of hydraulic fluid to the outside. Additionally, Rod Seals help contribute, in combination with a Wiper Seal, to preventing contamination of the environment. GFS Rod Seal profiles are available as single acting (pressure from one side) or double acting (pressure from both sides).
This blog article will discuss the different profile, their recommended applications, and operating parameters.
(March 30, 2021) Gallagher Fluid Seals, Inc. has exciting news for its customers. Flangeguards, a global leader of pipe and safety shielding products, has awarded Gallagher Fluid Seals with exclusive distribution rights in the East and Midwest territories of the United States.
2021 marks Gallagher Fluid Seals' 65th year serving the sealing industry. With 2020 and 2021 bringing unique challenges to our OEM and MRO customers, it's important that Gallagher continues to bring added value to our customers in the form of new product lines.
"I'm excited about this partnership with Flangeguards" says Mike Fischer, Director of Sales & Marketing at Gallagher Fluid Seals. "Their flange shield products, SUREBAND® Steel and SUREBAND® Clear, will provide a new and unique set of flange safety shields previously not sold by Gallagher, helping to serve our customers in an expanded fashion."
Polytetrafluoroethylene (PTFE) resin is a highly effective material for seal consumers due to its extremely low friction, high heat tolerance and chemical inertness.
With the right additives, PTFE resin can perform even better in terms of strength, thermal performance, chemical resistance and abrasion.
However, there are a few design considerations when using PTFE resin, particularly when combined with glass fiber and bronze.
This blog will examine PTFE fillers to enhance PTFE performance.
For nearly every application, the finish on a surface plays a critical role, bringing an enormous impact on performance and longevity.
Each manufacturing process used to acquire a specific surface finish produces a characteristic direction (lay) to the surface which affects wear patterns, performance, and longevity
Gallagher knows it's imperative to bring attention to the importance of surface finish and its relativity to the performance of your seals.
Check out part 2 of our 6-part video webinar series on Surface Finish.
Rubber deterioration can happen due to a variety of factors, including heat, light, and other environmental factors. Its greatest impact is typically with rubber seals and o-rings. This blog will discuss common deterioration causes for rubber seals and steps to help prevent underlying issues.
Elastomers are a natural or synthetic polymer that has elastic properties. Rubber is an example of an elastomer as rubber is stretchy. Rubber can deteriorate over time due to to the nature of the material. The most common causes of rubber deterioration include heat, exposure to light, and exposure to chemicals or even oxygen. Things like rubber seals and O-rings are susceptible to deterioration due to the molecular changes these factors cause. They can significantly impact the mechanical properties of the rubber seal, which results in shortened lifespan.
GYLON EPIX™ is a family of gaskets that effectively seals a broader range of applications and is more forgiving during the installation process. It allows the end user to save valuable turn-around time, reduce re-work, and lower costs, helping them to finish ahead of schedule and under budget.
GYLON EPIX™ features a hexagonal surface profile that provides the torque retention and blowout resistance of a thin gasket and the conformability of a thicker gasket. GYLON EPIX™ Style 3504 EPX is a high performance, aluminosilicate microsphere filled PTFE sheet material designed for use in moderate concentrations of acids, and caustics, as well as hydrocarbons, refrigerants, and more.
Primary Metals | Steel Mill
10” GRE (glass reinforced epoxy) stub end flanges with a wafer type valve in between. The application consisted of two gaskets for the joint, one on either side of the valve.
GRE also known as FRP (fiber reinforced plastic) are nonmetallic and lack universal design criteria when it comes to gasketing. These flanges are more fragile and do not allow high bolt loads to compress and seal the gasket.