gore
- December 28, 2023
ePTFE from GORE
Expanded polytetrafluoroethylene, or ePTFE, is the core material in many of Gore’s solutions. An ePTFE membrane is created when PTFE — a linear polymer consisting of fluorine and carbon molecules — is expanded, creating a microporous structure with very desirable characteristics, including a high strength-to-weight ratio, biocompatibility, high thermal resistance and many others.
GORE ePTFE Video
Gallagher Fluid Seals is pleased to introduce its newest video, which discusses GORE expanded PTFE.
The clip features our engineering manager Craig Beil discussing
- November 27, 2023
STAMP - Remember this for Gasket Selection Criteria
When you're specifying a gasket for even the simplest application, it is important that the gasket supplier know all the operating parameters.
There are five major pieces of information needed to select the appropriate gasket, known by the acronym S.T.A.M.P.:
Size:
While gaskets are most often used in standard ANSI flange connections
- July 05, 2023
Since 1958, Gore has developed products that improve lives. At the center of these solutions is polytetrafluoroethylene (PTFE), a polymer with exceptional properties like high tensile strength, a low dielectric constant, UV resistance and many more. In 1969, the possibilities for PTFE expanded with Bob Gore’s discovery of expanded PTFE, or ePTFE.
In the years since, Gore has developed unparalleled expertise in manipulating ePTFE and other fluoropolymers. Gore's engineers can change a material’s structure, shape, thickness and surface geometry, then pair it with complementary materials to provide the performance qualities required by the application and the customer. The resulting product can be strong or permeable, rigid or flexible, thin or thick — with many additional combinations of properties that can be applied to meet the end use requirements.
Since its very founding, Gore has been passionate about solving the complex challenges of their global customers. From the first suggestion of a product need, to its delivery to market, this passion is apparent in everything Gore does.
- Curiosity: From keeping water off a person’s skin to preventing leaks from happening in chemical containers, Gore listens to their customers and analyze the challenges to determine the underlying problem.
- Competency: Gore determines how they can apply their expertise in fluoropolymer science to deliver solutions that are valued and differentiated from the competition.
- Commitment: Gore rigorously tests their products to ensure they deliver failure-free performance and suit their customers’ needs and applications, the first time and every time.
- March 24, 2023
Gore Joint Sealant and Gore Gasket Tape Series 500
Created more than 40 years ago, Gore Joint Sealant was the first form-in-place gasket. It was and still is a great sealing solution for steel flanges with large diameters, irregular shapes, or rough/pitted surfaces. It forms a thin yet strong seal when compressed and works in applications where bolt loads are low.
With a reliable, easy install and being a cost-effective sealing method, it's become standard seal for MRO applications all over the world. Installing it is very easy, too: Simply peel off the adhesive backing, apply it to the
- November 15, 2022
Gore® GFO® Fiber vs Graphite/PTFE Packing
When tested alongside generic graphite/PTFE packing, packing made of 100% Gore® GFO® Fiber achieves better results for all key attributes: creep resistance, retention of lubricant, sealability, and stability (shrinkage).
The differences in performances for each generic packings will have an impact on the operational costs.
- November 03, 2022
GORE UPG Ring and Full Face Gaskets
GORE® Universal Pipe Gaskets (Style 800) provide a reliable seal for steel, glass-lined steel and fiber reinforced plastic (FRP) flanges, in the full spectrum of strong acid, alkali, and solvent process media, including the most challenging thermal cycling and elevated temperature applications.
This single gasket solution can reduce the process safety and production downtime risks caused by the use of an incorrect gasket material. The highly conformable 100% ePTFE also reliably seals irregular surfaces.
- September 02, 2022
There are so many options when it comes to gasketing material for your process or product that choosing the right one can be overwhelming.
Fortunately, Gallagher's six decades in the sealing business has allowed us to become experts in specifying the correct material for every application.
One of the more versatile materials in our arsenal, for both standard and custom-shaped gaskets, is GORE® GR Sheet Gasketing.
According to the GORE website, GR
- September 08, 2020
Fiber Reinforced Plastic (FRP) pipes and flanges are increasingly used in the oil and gas industry where metal is simply too heavy and expensive. In addition to cost pressure, the need for lightweight chemically resistant materials are also driving the use of fiberglass pipes and flanges. Innovations in FRP flange design coupled with improvements in manufacturing technology have allowed FRP piping to be used in even more demanding applications. However, these demanding applications have added challenges for sealing the bolted flange connections.
More aggressive media and higher internal pressures have pushed the limits of the commonly used rubber gasketing materials, such as Nitrile Butadiene Rubber (NBR), Ethylene Propylene Diene Monomer (EPDM), or neoprene. Obtaining a reliable seal in FRP flanges using conventional gasketing materials has become more difficult.
Fiberglass pipes are generally known to have strength limits and a lower pressure resistance, making sealing fiberglass flanges difficult. Gore solved this problem with its patented expanded polytetrafluoroethylene (ePTFE) gasket, specifically designed to seal flanges at low stresses. This solution was successfully demonstrated in a multistage testing procedure conducted in cooperation with a globally leading manufacturer of anti-corrosive fiberglass pipe systems.
- May 19, 2020
Attention: When installing GORE Gasket Tape Series 1000 in joints with multiple (2 or more) gaskets compressed with a single set of bolts or clamps, see the installation supplement “Installation on Joints with Multiple Gaskets,” for additional mandatory instructions.
1. Select the size
GASKET WIDTH
Select the gasket width that provides enough material to align the gasket tape flush with the inner and outer diameter. Ensure full coverage of the glass surface. Excess material may exceed the outer diameter.
GASKET THICKNESS
Most applications require a base layer of 6 mm (1/4") tape, which can accommodate deviation up to 1.5 mm (1/16") without shimming. Applications with deviation up to 2.3 mm (0.090") can utilize 9 mm (3/8") tape without shimming.
SHIMMING
To effectively seal flanges with deviations beyond the maximum for the base layer, a shimming process is recommended. Use of 3 mm (1/8") GORE® Series 1000 shim tape as a shim layer will accommodate an additional 1.5 mm ( 1/16") of flange deviation. Ensure the shim layer has the same width as the base layer.
2. Determine a Torque Value
To achieve a reliable seal, adequate gasket stress must be applied during installation.
Typical minimum stress to seal values for GORE Gasket Tape Series 1000 are:
- 6 mm (1/4"): 14 MPa (2,030 psi)
- 9 mm (3/8"): 18 MPa (2,610 psi)
Perform an engineering calculation to determine the torque value for your specific application.
Industry guidance is available, for example in ASME PCC-1 Guidelines for Pressure Boundary Bolted Flange Joint Assembly, and EN 1591-1 Flanges and their Joints - Design Rules for Gasketed Circular Flange Connections - Part 1: Calculation.
However, ASME PCC-1 does not include glass-lined steel specialties. Therefore, it is advised to contact the equipment manufacturer for an adequate torque recommendation.
- April 17, 2020
Gore, Precision Associates, and Parker Join the Fight Against Covid-19
What Gore is doing to help
As the COVID-19 pandemic continues to impact communities around the world, Gore is working hard to identify ways in which they can apply their materials science expertise and production capabilities to help during this time of need.
Several initiatives are underway that bring together the knowledge, skills and capabilities from across Gore.
As an immediate and initial response to the personal protective equipment (PPE) shortage, Gore rapidly engineered prototype reusable mask covers to supplement clinicians’ primary face masks.
The effort went from a product concept to prototypes in less than one week. Gore currently has prototypes being evaluated at a limited number of U.S. facilities in COVID-19 outbreak hot spots.
Additionally, by providing their customers and other manufacturing companies with Gore's highly specialized component materials, they can use them to produce a variety of finished PPE items, such as:
- Protective medical gowns, using fabrics laminates from Gore's current inventory
- Universal filter cartridge prototypes for fixed masks that incorporate Gore's filtration materials intended to provide N95 particulate protection,
- Disposable N95 respirators, using Gore's filtration laminates
It is through these collaborations with those who have the technical capabilities and production capacity needed to produce the finished goods in volume that together, Gore and its partners truly are improving life.
Gore has even donated medical supplies and protective gear to healthcare workers in the communities in which their facilities are stationed. They've also extended a hand to provide engineering and prototyping support to address other urgent equipment needs at local hospitals.
What Precision Associates is doing to help
Precision Associates, Inc. has ramped up its production of several essential rubber components for ventilator manufacturer Ventec Life Systems. Ventec recently announced plans to partner with GM to increase the output of these crucial units in response to the COVID-19 pandemic.
Critical patients suffering from the virus have difficulty breathing and require ventilator assistance for life support. GM is now transforming one of its factories to begin assembling ventilators for Ventec in early April.