Seals Reference Materials

Description: Intro to Plastic Valves: Seals ...

Description: When an aircraft is manufactured, every single portion of the plane or jet is designed to be able to be serviced and repaired for the next 20-30 years. Aircraft manufacturing OEMs are building ...

Description: Silicone rubbers are highly stable elastomers that are broadly used in industrial engineering and sealing applications. ...

Description: Rotating unions (also referred to as rotary unions, rotary joints, rotary swivels and rotary couplings) transfer fluids from a stationary source to rotating equipment. In theory, rotating unions are ...

Description: Mid-Mountain Materials, Inc. compares the performance of silicone coated rope and die-cut gaskets in more detail. ...

Description: Industrial mechanical equipment must reliably perform essential tasks, even while operating in challenging conditions. The slightest error or malfunction can lead to time-consuming and costly ...

Description: Conventional fasteners, such as nuts, bolts, rivets, and screws, are relatively efficient at mounting a broad range of items to surfaces, or surfaces to each other. However, in some industrial ...

Description: Downhole logging tools and electrical circuits are packaged in a hermetically-sealed metal enclosure, which is either sealed and pressurized, or filled with fluid, to protect the circuits from ...

Description: Zatkoff Seals and Packings increased efficiency on heat dissipation of a PCB and reduced labor cost due to a fully-automated dispensing system. ...

Description: Zatkoff Seals & Packings has developed a sealing solution that increases its customer's product performance while providing the lowest total cost of ownership. ...

Description: Zatkoff Seals and Packings designed a sealing solution with superior performance and resistance to aggressive media. ...

Description: Zatkoff Seals and Packings has developed cost-effective options to support prototype and low volume production plastic components to meet the growing needs of the EV market. ...

Description: A customer was designing a new hydraulic pump, and turned to Zatkoff for assistance in determining the best sealing solution for its application. After various tests, the original pump design failed ...

Description: Read how updating a process dryer boosted efficiency and saved huge dollars ...

Description: Given these comprehensive mechanical strengths and high degrees of formability, fiberglass ropes are commonly used as high temperature sealants for kilns and ovens, and thermally-resistant industrial ...

Description: What kinds of gasket materials are best for high temperature steam applications, ranging up to 300F? ...

Description: Rotating unions convey fluid from a stationary supply line to equipment or a rotating tool. They are critical elements in a variety of applications across many industries, serving as the fluid ...

Description: Standard Sealants ...

Description: Tadpole gaskets are unique thermal sealing solutions comprised of a heat-resistant cover and a durable core material arranged in a distinctive bulb and tail structure. ...

Description: Hermetic sealing is the process of creating a container of some sort that is airtight. That means that any material in the container, whether it's a gas, liquid, or solid, will not leak from the ...

Description: Rotary unions are a critically important element in through-spindle coolant (TSC) systems. TSC systems deliver coolant directly to the cutting edges of end mills, drill bits and other rotary tools, ...

Description: One size does not fit all. Creating multiple sizes of rubber seals and rubber gaskets quickly and economically doesn't have to be a challenge. When switching from molded rubber parts, there are two ...

Description: Refractory cement is a material that retains its high strength properties at extremely high temperatures. It is often used in applications that require high strength, wear resistance, and thermal ...

Description: Dimensional Requirements and Performance Requirements ...

Description: Mechanical seals are more than 100 years old, originating in 1905 when they were used in refrigeration compressors. Seals today contain, withstand, accommodate and survive a rotating shaft in a closed ...

Description: Once installed, O-rings make sure that no liquid or air sweep through the designated area. Since O-rings are crucial to perform effectively after being installed, selecting the right O-ring material ...

Description: Like any device subjected to errors in installation or exposure to high stresses, O-rings too are liable to failure. Different materials of O-rings have different shelf lives. Shelf life for materials ...

Description: Introduction As the oil and gas industry moves to recover more challenging reserves and enters the development of High Pressure High Temperature (HPHT) fields, the risk of fire is ever present. ...

Description: O-rings are the most widely-used seals because they are efficient, economical, and can be used in a wide variety of static and dynamic applications. In order to get the most out of an O-ring, it is ...

Description: New aircraft design calls for maintenance-free accumulators that deliver lowest lifecycle cost. ...

Description: Senior's engineers put off-shore project back on schedule, averting potential losses in the millions. ...

Description: High-performance thermal actuator for aircraft engine manufacturer changes everything. ...

Description: Senior's innovators deliver on an "impossible" spec for wafer handling. ...

Description: Extreme temperatures challenge commercial engine maker to find better solution to gearbox safety. ...

Description: New flight control system meets strict guidelines for maintenance-free reservoir. ...

Description: Consumable blood analysis device achieves microliter precision while meeting size/cost goals. ...

Description: Minimizing lengthy installation delays for mission-critical aircraft component. ...

Description: Industry's first maintenance-free accumulator greatly improves mission-readiness for U.S. Air Force. ...

Description: Senior creates a new benchmark in high-temperature valves for gas turbines. ...

Description: Helping to develop the next generation of long-life, ultra-reliable aircraft. ...

Description: When compromise cannot be tolerated, the Senior team gives you the power. ...

Description: Steel and cast iron are typically used for bore housings as they provide a good surface for accepting both metal and rubber O.D. seals. For soft metal, such as Aluminum, a rubber O.D. is recommended. ...

Description: For a seal to optimally operate requires the appropriate design of the two components that the seal interacts with - the Bore and the Shaft. The Bore should have an adequate lead in chamfer and proper ...

Description: Proper application design assures proper sealing performance. Using the following guide will ensure the best possible sealing environment. ...

Description: Although not often the most expensive component in a bearing assembly the proper selection of the radial shaft seal can be crucial to ensuring bearing longevity and reducing system maintenance costs ...

Description: Seal installation might seem straightforward but when replacing seals (especially in the field) even the smallest of errors can lead to premature seal failure. Improper seal installation is recognized ...

Description: Frequent gasket replacement is frustrating and costly in machine downtime. It can leave you wondering if there is something that could be done to improve the gasket. The problem can be as simple as ...

Description: Valve seals must be selected to provide enhanced durability and life in the end-use application while meeting increasingly stringent performance criteria in regards to leakage and low emissions. ...

Description: Phelps Compressed Gasket Materials (our famous green sheet) have been extensively tested for pressure and high temperature performance. In particular, the green sheet has undergone two tests - the DIN ...

Description: Control of fluid loss is essential to the successful operation of mechanical equipment used in fluid handling. Various methods are utilized to control leakage at shafts, rods, or valve stems and other ...

Description: The importance of packing the pump correctly cannot be overemphasized. Many packing failures are due to incorrect installation of the packing. The following steps have been devised to ensure effective ...

Description: Packing may fail for a variety of reasons. Beside improper installation, packing failures are often due to worn or faulty equipment, shaft misalignment, uneven take-up on the gland bolts, and other ...

Description: Highly exacting manufacturing techniques and design tolerances are needed to meet the demanding performance specifi cations for these applications. ...

Description: Like any device subject to judgment in design, or to human error during installation, O-ring seals are liable to failure. ...

Description: The chart matches the general rubber properties required in most O-ring applications with the capabilities of commonly used elastomers. Since no one elastomer is rated "excellent" for all properties, ...

Description: (Standard Materials and Specifications) A description and chart of the physical properties(temperature range, colour, hardness range) of the elastomers used in seals and o-rings ...

Description: The chart matches the general rubber properties required in most O-ring applications with the capabilities of commonly used elastomers. Since no one elastomer is rated "excellent" for all properties, ...

Description: To achieve optimum sealing performance and to maximize the longevity of the seal it is important to start with the correct elastomer for your particular application. ...

Description: As a result of excessive use, shearing and damage can occur to equipment causing undetectable product contamination. Metal detectables can eliminate product recall, lower product loss and decrease the ...

Description: Groove design table for o-ring installation. ...

Description: In all dynamic applications, proper lubrication and good heat dissipation are essential to long seal life and performance. In pneumatic applications, supplemental lubrication should be provided. ...

Description: Storage life varies with resistance of each synthetic elastomer to normal storage conditions. Use this reference chart as a guideline as to how long an O-ring can be stored. ...

Description: There are often misconceptions surrounding the availability of contacting, polymeric rotary shaft seals. Much of this misunderstanding comes from assumptions made by comparing contacting, polymeric ...

Description: A persistent problem faced while aluminum reduction cells are sealed is creating and maintaining a hermetic seal for the entire service life of the reduction cell where the cathode bars penetrate the ...

Description: Auto Industry Trends As a leading supplier of automotive industry applications for seals, retaining rings, bushings, and protective caps, we're constantly exploring the fast paced auto industry and ...

Description: There is a great future for elastomer sealing solutions with a particular emphasis on fugitive emissions for valves and how more advanced materials will be able to reduce these emissions due to a ...

Description: Sanitary gaskets and o-rings are integral parts used across numerous industries. They help to create tight connections, and to seal off systems to ensure that nothing goes in or out. This helps to ...

Description: It's been a question long asked by professionals in the energy sector; how can we make wind power a more attractive alternative? The potential of green or sustainable energy is considerable and the ...

Description: Welded metal bellows are suitable for extreme temperatures and corrosive environments. ...

Description: Following four consecutive years of decreasing NAR's, 2014 has significantly bucked the trend with current estimates reverting back to 2011 levels. Since 2009, hazardous shipments by rail have ...

Description: A good oil or radial shaft seal is designed to either keep oils or other fluids from leaking out of a mechanical component or to keep contaminants from finding their way in, and many times both. ...

Description: Water filtration systems remove impurities from water through physical barriers, chlorine disinfection, or ultraviolet (UV) light. In wastewater treatment plants, metal gates are bolted to concrete ...

Description: Part tolerances are allowable variations in the dimensions of manufactured components. They are expressed as plus or minus values, or as a range of measurements. If a part is out of tolerance, ...

Description: Taping keeps rubber profiles in place for temporary or permanent fastening. This joining technique isn't right for every sealing application, but taping is especially valuable when space is limited. ...

Description: How safe are the sidewalks in your city? If you're concerned about cracked cement at your feet, you may want to look skyward instead. No, don't look at the clouds. Instead, examine the windows on the ...

Description: Seal simulation can save your product designers time and money. Instead of creating a rubber part, testing it in the field, and then correcting any problems through multiple iterations, a design team ...

Description: Founded some 24 years ago by two Rolls Royce aerospace engineers, Hopepioneered disc brakes for mountain bikes. Today, in addition to their world-renowned disc brakes, the company also manufacture ...

Description: Have you heard the old saying, "It's just like riding a bike"? Some skills, once learned, are not forgotten. Without the right rubber parts, however, even the best bicycle can't carry you along roads ...

Description: Our Chemical Compatibility Database (CCD) has been created to help you make the right choice of materials for the environment that your product has to operate in. Simply enter the name of your ...

Description: Amphibious assault vehicles are armored personnel carriers that transport troops and cargo from off-shore ships to in-land positions. During World War II, Allied forces used an amphibious landing ...

Description: Seals Eastern looks forward to continued gains in quality and efficiency by combining statistical and rheological techniques in the design and manufacture of engineered rubber products. ...

Description: This chapter reviews the behavior of a crosslinked elastomer in an engineered design, randomly or continuously loaded (as opposed to regular cyclic loading). Comparable real world service would be ...

Description: The solubility of a plasticizer in a polymer is governed by thermodynamic considerations well documented by numerous researchers. The effect of plasticizers on dynamic properties is less widely known. ...

Description: In the following sections, some of the features and benefits of DMRT are presented, relevant elements of rheology are defined, DMRT methods are explained, and some applications of DMRT to polymer ...

Description: The objective of this test program was to review the potential physical and chemical changes of four candidate elastomers in engine coolant service. ...

Description: A chemical analysis of the aging process of rubber. ...

Description: Polyurethane specs and design information. ...

Description: Elastomers in fuels, oils and other fluids are increasingly being tested (and subjected to) 3000 hour life tests. These tests are not only realistic but also overdue if we are building world-class ...

Description: It can be shown that elastomers have a more predictable swelling response in high-pressure supercritical gases than previously believed. This paper reviews environment interactions, emphasizing ...

Description: The objective of this test program was to review the potential physical and chemical ch anges of three popular "high-performance" oilfield materials in potassium formate over a relatively short time ...

Description: Explains the development, classification, and theory of fluoroelastomers. ...

Description: Two classes of fluoroelastomers, FKM and FEPM, are aged at 150°C in dry heat, ASTM reference engine oil and an organic acid based engine coolant. The test procedure, which uses unique component ...

Description: The objective of this study was to identify the primary mechanism which is responsible for a dramatic increase in HNBR hardness during long exposures to high temperatures in automatic transmission ...

Description: A study on the viscoelastic properties of HNBR was conducted after exposure to nucleophilic and basic constituents in automatic transmission fluids. ...

Description: As an important fabricator of precision molded rubber products, we had always understood that effective quality control depends on determination, hard work and the appropriate use of state-of-the-art ...

Description: Testing elastomers at low temperature. ...

Description: "Among elastomers commercially available, several are reasonably stable for prolonged periods at temperatures above 200*C (392*F); but at such temperatures, their strength characteristics are ...

Description: Nitrite rubber (NBR) has been the work-horse elastomer in oil & gas production for the past fifty years. As wells began producing increasing amounts of hydrogen sulfide through stimulation or ...

Description: Designing O-ring seals for low pressures is not simply a matter of reducing the amount of squeeze: it involves a delicate balancing of material hardness, dimensional tolerances, stress relaxation, and ...

Description: The science and specs behind different types of polymers. ...