Category Archive: Uncategorized

Pool O-Rings

When it comes to pool maintenance and functionality, o-rings are essential components. These simple, cost-effective seals are key in preventing leaks and ensuring that pool equipment operates smoothly. At Arizona Sealing Devices, we specialize in providing high-quality O-rings for swimming pool filters, pumps, and other pool equipment. Our sealing solutions are customized to meet the unique demands of pool equipment manufacturers, offering long-lasting performance and reliability.

Importance of O-Rings for Pools

O-rings are crucial for the proper functioning of pool systems. Used in pool filters, chlorinators, and pumps, they serve as seals to prevent water leakage at connection points between equipment components. By creating a watertight seal, O-rings help pool systems maintain optimal pressure and maintain efficiency.

Without O-rings, pool equipment can malfunction, potentially leading to costly repairs or breakdowns. Given their importance, it’s essential to invest in high-quality pool O-rings for pumps and other critical equipment. Our catalog includes a wide range of swimming pool O-rings, available in various sizes and materials to meet your needs.

Pool Equipment Which Uses O-Rings

O-rings are used in several pool equipment components to ensure proper function without leaks. Some common applications include:

O-Ring Design and Measurements for Pools

An O-ring is designed to fit into a groove and compress between parts during assembly, forming a seal at the interface. The diameter and thickness of an O-ring vary depending on its intended application. Typically measured in inches, common pool O-ring thicknesses include 1/16″, 1/8″, and 3/16″. For larger pool filters, O-rings may be as thick as 1/2″. Choosing the right size ensures a secure fit for an effective seal.

Best O-Ring Materials for Pools

The materials used for pool O-rings must resist harsh chemicals, vibrations, and long-term wear. At Arizona Sealing Devices, we offer O-rings made from high-performance materials designed for durability. Common materials we use include:

• EPDM O-rings. Known for their resistance to weathering, chemicals, and heat, EPDM O-rings perform well in pool pumps and filters.
• Viton^®/FKM O-rings. For chlorinators that deal with concentrated chemicals, FKM O-rings offer the highest level of chemical resistance. These are ideal for handling aggressive pool chemicals.
• Nitrile (Buna-N) O-rings. A more cost-effective choice, Nitrile O-rings are suitable for less critical applications within a pool system.

High Quality Pool O-Rings Supplied by Arizona Sealing Devices

Arizona Sealing Devices specializes in providing premium O-rings and sealing products for a wide variety of companies, including pool equipment manufacturers. Whether you need O-rings for swimming pool filters, cleaners, chlorinators, or otherwise, we can provide you with the ideal product.

We are committed to delivering high-quality products tailored to your specific needs. Our team carefully considers each request to ensure we provide the best possible solution every time. We also offer value-added services that provide complete turnkey solutions. This dedication to quality is why both new and returning customers trust us with their sealing needs.

Contact us or request a quote today to learn more about Arizona Sealing Devices’ pool O-rings.

Understanding FDA Food-Grade Silicone O-Rings: Applications and Benefits

It’s important to choose the right O-ring materials for your equipment and systems. FDA food-grade silicone O-rings offer all the benefits of FDA-grade silicone, with additional characteristics that make them safe to use around consumable products. In this blog post, we will take a closer look at FDA food-grade silicone O-rings and their benefits. We will also explore the different uses of FDA-grade and FDA food-grade silicone so you can choose the best sealing option for your needs.

What Are FDA Food-Grade Silicone O-Rings?

FDA food-grade silicone O-rings are made from a high-quality silicone material. The food-grade construction meets or exceeds FDA requirements for products that handle or process consumable goods. This means manufacturers can safely use FDA food-grade silicone components for a wide range of processes, particularly those seen in food and beverage (F&B).

Benefits of FDA Food-Grade Silicone O-Rings

Food-grade silicone O-rings maintain a tight, durable seal that won’t let ingredients out or air and moisture in. These seals are also bio-inert, meaning they won’t off-gas or leach chemicals into food, beverages, and other consumable goods. They can resist extreme temperatures, chemicals, and other stressors while eliminating many contamination risks and maintaining some flexibility.

The benefits of using a proper grade of silicone for seals and O-rings include:

• A longer-lasting seal in applications with temperature extremes, including high cooking and preservation temperatures and low refrigeration temperatures
• Silicone materials free of harmful chemicals or chemicals that could otherwise negatively impact the taste and smell of products
• Ability to handle changing temperatures and fluctuating temperature cycles (such as in beverage dispensing stations and heat sealing applications)
• Non-reactivity and durability, making these seals safer in food-related applications

Together, these advantages make them ideal for assemblies that conduct repeatable processes, especially those that must make direct contact with consumable products.

Applications of FDA Food-Grade vs. FDA-Grade Silicone O-Rings

FDA Food-Grade

The food and beverage industry encompasses different parts of the supply chain, from the production of food and drinks to warehousing and shipping to safe dispensing in restaurants. Some of the most common applications for FDA food-grade silicone O-rings in this industry include:

• Antimicrobial seals for process equipment and storage vessels
• Brewery tubing
• Dairy tubing and seals
• Food transfer tubing
• Industrial oven seals, including food-grade oven doors and seals
• Seals for food processing machinery
• Soda machine tubing
• Water purification tubing

FDA Grade

Similarly, the pharmaceutical and medical industries use FDA-grade silicone seals for a wide array of applications due to their bio-inert, non-toxic, and hypoallergenic properties. Possible applications include:

• Drug delivery and dispensing systems, including inhalers, insulin pumps, and syringes
• Critical care equipment that requires airtight seals, including breathing masks, IV pumps and dispensers, and medical ventilators
• Laboratory equipment that won’t introduce contaminants during use, such as autoclaves, heated mixers, vials, and other containers

Not only is FDA-grade silicone bio-inert, but it also can be heated and sterilized without damage, making it even safer for applications that cannot risk contamination.

Arizona Sealing Devices: Your Trusted Supplier of FDA Grade & FDA Food-Grade Silicone O-Rings

Arizona Sealing Devices is committed to supplying high-quality silicone seals that meet or exceed industrial regulations and requirements, including stringent FDA compliance standards. We serve our clients with high-quality products and services, starting with in-depth research into compatible materials for each project and ending with stringent quality testing and ongoing customer service. Whether you require reliable sealing products for food processing equipment, medical manufacturing, or another application, we can provide a solution that meets your needs.

Contact us today to learn more about our FDA-grade products, including O-rings, caps, plugs, gaskets, and kits, or request a quote for pricing details.

Choosing the Right O-Ring Material for Industrial Equipment

Understanding the Role of Temperature in Industrial O-Ring Material Selection

There are hundreds of industrial o-ring materials available for industrial use, but not every type is right for every situation. OEMs can ensure better performance and lower the risk of sealing failure by carefully selecting an o-ring material based on their specific sealing requirements. For example, Buna-N is a popular option for applications requiring reliable sealing in temperatures ranging from -31°F to 248°F, while operating environments with temperatures as low as -103 °F will benefit more from silicone or PTFE o-rings. Use this guide to help you choose the right material for industrial equipment seals based on chemical, temperature, and mechanical compatibility.

Evaluating Chemical Compatibility

Chemical resistance is a key factor to consider when choosing your o-rings materials. Without the right materials, water, solvents, and acidic or alkaline chemicals can each cause chemical degradation and o-ring failure. The following o-ring materials exhibit varying degrees of resistance to aggressive substances:

• Aflas. Commonly used to make chemical-resistant o-rings due to its temperature and chemical resistance. Common applications include aerospace, oil industry, and general purpose.
• Buna/Nitrile. Resist abrasion and corrosion damage and has high tensile strength, making them common materials for o-rings.
• Butyl. Can be reliably used in vacuum seals thanks to their low permeability and ability to resist gas leakage.
• Ethylene propylene. Similar to butyl but offers superior resistance to chemical and ozone damage.
• Fluorocarbon (Viton^®). Offer excellent temperature and chemical resistance. These can be used in engines, fuel-handling systems, and other high-temperature, high-exposure applications.
• Fluorosilicone. Remains stable at a wide range of temperatures and resists chemical damage from fuels. Possible applications include aerospace fueling and static sealing.
• Hydrogenated nitrile. Resists damage from oil and corrosion and is stronger than conventional nitrile.
• Kalrez. Resists volatile chemical damage, making it an excellent choice for chemical processing, painting tools, and oil and gas applications.
• Neoprene. Strong, chemically resistant, and resistant to temperature damage. It is most commonly used in refrigerator sealing.
• Polytetrafluoroethylene (PTFE). Offers good general temperature and chemical resistance. However, it requires extra care during installation as it does not have elastic memory at room temperature.
• Polyurethane (cast). Suitable for high-wear applications due to its high abrasion resistance.
• Polyurethane (millable). Similar to cast polyurethane but with a slightly lower tensile strength.
• Silicone rubber. Offers excellent temperature resistance and is available in multiple different quality grades, including medical grades. Useful for static sealing in extreme temperature environments.

Use resources like material datasheets to carefully select the right industrial o-ring material based on your system requirements or reach out to your preferred o-ring manufacturing team for assistance.

Assessing Mechanical Durability

Industrial o-rings must be able to handle high mechanical stress. Dynamic applications such as rotating shafts and hydraulic systems can benefit from using elastic and highly abrasion-resistant o-ring materials like polyurethane. Static seals, which don’t experience dynamic movement, can be made from silicone or other soft materials. In highly pressurized systems with heavy compression forces, materials like fluorocarbon (FKM) and hydrogenated nitrile (HNBR) can be used to create durable o-rings.

By balancing the mechanical properties of materials with application-specific needs, OEMs can ensure long-lasting performance with minimal maintenance costs.

Practical Tips for O-Ring Selection for Industrial Equipment

These quick tips can help you zero in on the right materials for your industrial equipment:

• Take note of different environmental factors that can impact your o-ring’s performance, including temperature, pressure, and chemical exposure.
• Once you factor in a material’s durability and chemical compatibility, consider the price. Higher-quality o-rings from more expensive materials may have a higher initial cost, but they can result in long-term savings when you don’t have to frequently replace them.
• Select the right o-ring size to prevent over-compression and stretching, both of which can compromise sealing effectiveness.

Partner With Arizona Sealing for Reliable O-Ring Solutions Today

Taking the time to choose the right industrial o-ring materials for your application can result in better sealing performance and lower maintenance costs. At Arizona Sealing Devices, we help OEMs and other companies understand which materials are the best fit for their systems, and we manufacture specialty o-rings for a wide range of industries and applications. We back our ISO-certified solutions with deep expertise to ensure our customers receive durable and efficient sealing components that comply with stringent standards.

Contact us today to discuss what materials are best for you, or request a quote for pricing details.

A Comprehensive Guide to Vulcanized O-Rings

Vulcanized O-rings are an ideal choice for applications requiring fixed sealing or environments that might expose these products to wear, chemicals, or heat. They’re common components within systems and equipment for industries ranging from aerospace, automotive, transportation, and construction to electronics, power generation, medical, and food processing. In this blog, you’ll learn more about how manufacturers create and use vulcanized O-rings and why they’re so beneficial to applications in diverse industries.

How Are Vulcanized O-Rings Made?

Manufacturers make O-rings from rubber by cutting cord stock and then fusing its two ends together. To do so, they start by applying uncured material in its liquid form to each end. The cord stock then goes into a heated mold with its ends touching. The pressure and heat between them cause the ends to cure together, generating a chemical bond of great strength due to the cross-links formed between the material’s long-chain molecules. Vulcanized O-rings are manufacturable in non-standard sizes from a range of elastomer options.

Cutting Techniques for Vulcanized O-Rings

Two cutting options for vulcanized O-ring preparation are the bevel cut and the butt cut. In bevel cutting, manufacturers typically cut the cord stock at a 45º angle prior to aligning and fusing its ends together. The idea behind this technique is to improve joint strength by increasing the available bonding surface area. With butt cutting, manufacturers will instead create a straight-edged cut, making perpendicular cuts on the cord ends as compared to the cord length. Once manufacturers align the ends and vulcanize the material, the process generates vulcanized O-rings.

Whether a manufacturer chooses a bevel cut or butt cut to create vulcanized O-rings is dependent on the selected material, the intended end-use for the O-ring, and the necessary seal strength — balanced with the desired ease of manufacturability. These choices will impact the dependability and performance of the vulcanized O-ring in providing a secure seal.

What Are the Benefits of Vulcanized O-Rings?

Vulcanized O-rings are advantageous for their:

• Sizing flexibility: One of the primary benefits of vulcanized O-rings is that they’re the perfect choice when a standard-sized O-ring won’t enable an ideal fit. Vulcanized O-rings give you an option when you’re looking for an oversized O-ring.
• Insulative capacity: Vulcanized O-rings can serve as good insulators against fluctuating temperatures and electrical currents, possessing a low dielectric constant.

What Materials Are Vulcanized O-Rings Made From?

Consisting of materials like natural rubber, synthetic rubber, or various polymers, vulcanized O-rings are often fabricated from:

• Aflas
• Buna (Nitrile)
• Ethylene propylene diene monomer (EPDM)
• Fluorosilicone
• Neo/EPDM blend
• Neoprene
• Silicone
• Viton^® (FKM)

High-Quality Vulcanized O-Rings at Arizona Sealing Devices

Vulcanized O-rings provide a reliable, tight seal between mechanical components. At Arizona Sealing Devices, Inc., we offer an array of sealing solutions in all shapes, sizes, and materials to handle the challenges of diverse and demanding industries. Our extensive product selection includes O-rings, gaskets, caps, plugs, and seal kits for meeting our clients’ widely varied project requirements.

Our qualified sealing experts can help you find high-quality vulcanized O-rings that match your specifications for durability, dependability, performance, environment, and regulatory compliance. Contact us for more information on the vulcanized O-rings we offer, or request a quote on one of our sealing product options today.

Seals for Valve Manufacturers

O-rings and seals are essential components in valve systems for numerous reasons. They not only prevent fluid and gas leaks but also reduce wear on valve components by absorbing impact and friction. Here, we’ll go over the various types of seals used in valve manufacturing, as well as some key considerations to keep in mind when choosing the right sealing solution for your needs.

Seals Used in the Valve Manufacturing Industry

Choosing the right seal is critical to ensuring valve performance and reliability. Common types of seals used in valve manufacturing include:

O-Rings

O-rings are round seals that fit into a groove between two or more mating parts. When compressed, O-rings create a tight seal at the interface to stop fluids or gases from leaking out of the assembly. These cost-effective and versatile components can be used in both static and dynamic sealing applications.

X-Rings

X-rings are four-lobed seals featuring a distinctive X-shaped cross-section. They are designed for lower friction and are commonly used as an alternative to O-rings in dynamic and static sealing applications.

V-Rings

V-rings are axial seals featuring a V-shaped cross-section. Used for high-speed applications and axial face sealing, these components prevent moisture, dirt, and other contaminants from entering equipment while keeping lubricants in.

Backup Rings

Backup rings support and protect O-rings and other seals from damage and extrusion, especially in high-pressure conditions. They stop O-rings from entering clearance gaps due to internal pressure, preventing material loss and premature seal failure.

Loaded U-Cup Seals

Loaded U-cup seals are characterized by their unique U-shaped profile and loaded lip. They provide effective sealing in low and high-pressure applications and are constructed with robust materials to ensure long-lasting performance. Loaded U-cups are particularly well-suited for rod and piston sealing in hydraulic systems.

Oil Seals

Oil seals are designed to provide effective sealing around rotating shafts in hydraulic and pneumatic systems. They work by closing the gap between moving and stationary components, preventing lubricant leaks and stopping harmful materials from entering equipment.

Considerations for Valve Applications

Valve manufacturing is a complex process that involves various challenges. Sealing products used within valves must meet numerous requirements related to regulatory standards, operating conditions, and advancing technologies. Factors to consider when choosing the right O-rings and seals for valve systems include:

• Harsh Operating Conditions: Valves are commonly exposed to environments with high temperatures, high pressures, or corrosive materials. O-rings and seals must be able to withstand these conditions to preserve system integrity.
• Material Compatibility: Valve seals and O-rings must be chemically compatible with the gases and fluids they will encounter. Choosing the wrong O-ring material can result in degradation and premature seal failure.
• Regulatory Compliance: Valve seals must meet industry-specific standards for design requirements, material specifications, and more.
• Static vs. Dynamic Sealing: Valves can feature both stationary and dynamic components, requiring different types of seals. Static seals should provide reliable protection in low-motion applications, while dynamic seals should be able to withstand regular movement and friction.

Arizona Sealing Provides High-Quality Seals for Valve Manufacturers

Valve systems require reliable seals to ensure optimal performance. At Arizona Sealing Devices, Inc., we offer an extensive selection of high-quality O-rings and seals for valve manufacturers. Our sealing solutions are available in various material compounds and durometers to meet your unique application requirements. For more information about our sealing products for valve manufacturing, contact our experts today.

Sealing for Hydraulic Systems

Hydraulic systems utilize pressurized fluid to power commercial and industrial machinery. In addition to high pressures, this equipment is subjected to hot environments, the elements, corrosive media, and contaminants, making these systems vulnerable to leaks and the resulting pressure drops.

To prevent this during operations, manufacturers of everything from earth-moving and forestry equipment to industrial hydraulics and material-handling machines rely on high-quality hydraulic seals. These sealing devices help minimize fluid loss, maximize equipment performance and efficiency, and regulate internal fluid pressure levels for safe, consistent operations.

Sealing Benefits for Hydraulic Machines

Sitting between the mating faces of components and maintaining tension to safeguard against fluid loss, hydraulic seals play a significant role in the overall performance and health of hydraulic systems. Key benefits that these O-rings provide in hydraulic applications include:

• Reliable leak prevention. High-quality hydraulic seals protect the integrity of a system by keeping fluid from escaping through part joints and seams, even if the system is carrying corrosive media or operating at high pressure levels and temperatures.
• Pressure regulation. Avoiding fluid loss in a system allows for better pressure regulation, as well. Pressurized hydraulic systems rely on tight seals to maintain system pressure.
• Enhanced performance. By ruling out hydraulic fluid leakage, you’ll also support safe, optimal performance in your manufactured systems and equipment. These seals will maximize power output while utilizing energy more efficiently.
• Longevity. When systems are maintained properly, hydraulic seals are long-term sealing devices due to their durability in the face of friction, corrosive substances, and harsh operating conditions.
• Reduced costs. These robust seals save users money over time by minimizing diminished machine performance, unscheduled or emergency shutdowns, and safety hazards. As long-lasting sealing solutions, they also lower maintenance, repair, or replacement costs.
• Lubrication. Certain hydraulic seals are capable of retaining fluids to lubricate system parts, reducing wear, friction, and heat buildup as they move against each other.

Types of Seals in Hydraulics

For customers to realize these benefits, manufacturers must first choose the right sealing component for the needs of the intended application.

Linear Hydraulic Seals

Linear hydraulic seals are found in hydraulic cylinders, which take hydraulic energy and turn it into linear motion and force. They’re often used in transport vehicles as well as equipment for the manufacturing and construction sectors.

Rotary Lip Seals

Agricultural equipment relies on rotary lip seals that can keep hydraulic and lubricating fluids in and contaminants like dust and dirt out. They can withstand the harsh environmental conditions, fluctuating temperatures, and high pressures to which agricultural machinery is exposed. The ideal rotary seal for such applications is capable of resisting everything from moisture to corrosive substances like fuel and grease that the equipment requires to operate, ensuring long-term use.

Radial Oil Seals

Radial oil seals sit between two component faces, one turning relative to the other. Also known as radial shaft seals, rotary shaft lip seals, or simply oil seals, they help prevent friction by sealing lubricating fluids internally. In addition to keeping contaminants out of the fluid media, these round seals also prevent cross-contamination between different fluids within the system.

Sealing Devices for Hydraulic Systems by Arizona Sealing

Hydraulic O-rings and seals are essential to preserving the functionality, efficiency, and safety of a hydraulic system. At Arizona Sealing Devices, Inc., we’ve been distributing reliable, high-performance sealing products to manufacturing clients in industries ranging from medical to military since 1989. The quality O-rings, gaskets, caps, plugs, and kits in our catalog help ensure consistent operations in your systems without failure or leaks.

We offer these products in varying sizes, shapes, materials, and designs, with the ability to comply with industry-based regulations. Contact our qualified sealing experts to learn how seals and O-rings from Arizona Sealing Devices can support your operations, or request a quote today to start your order.

Why Sealing Gaskets Matter

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A gasket is a form of seal that bridges the space between two surfaces to prevent leakages. When installed incorrectly, gaskets will fail to function properly. To maintain your rubber gaskets’ optimal performance for an extended time, you must take several steps, one of which is sealing.

Gaskets are a typical tool to enable a better fit while fitting into the application. Once the gasket has been properly installed, this sealant also guards against sliding. In addition, sealing gaskets guards against leaks and debris on machinery.

What Is a Gasket?

Most rubber gaskets are used to seal equipment. Even though most of these don’t need gaskets, it is a frequently utilized product to enable better placement when fitting onto the application.

Gaskets can tolerate great pressure that can be handled by their solid metal design. In industrial settings, gaskets are frequently used to seal fuel tanks, pipes, and boilers. They are also installed in car and truck engines to form a seal between the cylinders and the cylinder head. Finally, ring gaskets are used as seals in offshore oil and gas pipelines.

For industrial sealing devices, a gasket can withstand some of the harshest environments and applications, including the following:

• Chemical processes
• Power generation
• Deep sea and petroleum industries
• Gas and oil
• Mining
• Military equipment
• Aerospace machinery

How To Choose the Right Material for Your Seal and Gasket

Using unsuitable materials for a project can cause seal or gasket failure, leading to equipment damage, production delays, shortened product life, or even injury. Therefore, evaluating your application’s requirements and specifications is crucial to ensure that your chosen material will match your needs.

Here are some of the major considerations when choosing sealing gaskets:

Temperature

Extreme temperatures can impact a material’s ability to seal, its maximum permitted stress, and its overall performance. Usually, material selections are more constrained as application temperatures climb. Your choice of material will also be influenced by how long a material is exposed to its maximum temperature.

Environmental Factors

The durability of a gasket can be affected by various external conditions. For example, the success or failure of your seal or gasket depends on the temperature, UV exposure, moisture resistance, chemical resistance, and BSR & NVH reduction (vibration resistance) it will experience during processing.

Industry Standards

Seals and gaskets have different standards depending on your product, business, and location. Industries with specialized material needs include automotive, food service, pharmaceutical, and many more. Therefore, working with a manufacturer knowledgeable about industry best practices and standards is vital.

Material Compression Set

The degree of permanent deformation that a seal or gasket experiences when subjected to pressure or force is known as the compression set of material. Due to gaps, leaks, or application problems, seal or gasket performance degrades over time and with repetitive compression, which decreases its efficacy.

It is crucial to remember that intermittent compression is more significant than constant compression when it comes to material recovery. Therefore, you should collaborate with a reliable partner to help you choose the right material for your application and conduct real-world testing to establish its suitability for your planned use.

Durometer

A standardized method for determining a material’s hardness or firmness, in the case of foam, is the durometer. The measurement ranges of durometer testers, which range from 0-100, show how much force is required to produce various indentation levels. Higher numbers denote harder materials, while lower numbers denote soft, flexible materials.

A vital component of sealing performance is the durometer. The seal or gasket material must be tough enough to endure the pressure or impact it will experience but soft enough to cover the space between two surfaces without protruding from the joint.

It can take time to choose the right material hardness for your application. Thus, working with an experienced manufacturer will help you select the optimum material for your application while staying within your budget.

Reliable Sealing Services With Arizona Sealing Devices

As an ISO 9001:2015/AS9120B certified company distributing high-end sealing products, Arizona Sealing Devices prioritizes quality above all else! Our staff diligently evaluates each product we offer to ensure that it meets the needs and specifications of our customers.

Since our company’s beginnings in 1989 as an O-ring provider, we have increased the range of sealing products we offer to include caps, gaskets, plugs, and seal kits.

Get to know more about our sealing services and products by calling 480-892-7325. You may also contact us today!

What Are O-Rings?

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O-rings are an essential component in many industrial manufacturing processes. These simple yet effective rubber rings provide a tight seal between two mating surfaces, allowing for the transfer of fluids or gases while preventing leaks. They have been used in aerospace, automotive, and medical applications since their invention by Danish engineer Neils Christensen in 1937.

O-rings offer superior sealing capabilities compared to traditional gaskets. Their versatility and cost-effectiveness make them an ideal choice for applications ranging from fuel lines to oil seals on engines. They can also be manufactured with different materials, making them one of the most widely used components across multiple industries today.

Materials and Types

O-rings aren’t always round; they may come in squares, X-shapes, and more, depending on their intended use. Moreover, multiple fabrication methods are used for O-rings, including extrusion, compression molding, injection molding, transfer molding, and machining.

Depending on the application, O-rings can be made from the following materials:

• Nitrile rubber
• Silicone
• Polyurethane
• Neoprene
• Fluorocarbon
• Other elastomers and more!

Static O-Rings

Static O-rings are used in stationary applications and are usually machined in a groove into the mating surfaces, preventing them from moving under pressure or temperature changes.

Dynamic O-Rings

Dynamic O-rings are designed for applications that must be able to move while maintaining the seal. Examples of dynamic O-rings include piston or shaft seals, which provide a sealing effect against rotating components. The design of these parts is more intricate than static ones due to their movement requirements and additional considerations, such as radial force and torque capabilities.

Common Applications of O-Rings

Most O-rings are used in fluid power applications such as hydraulics and pneumatics. They are also very common in piping systems, machine tools, engines, and other mechanical equipment. Other applications include the following:

Transportation and Automotive Industries

O-rings are ideal for sealing fluids such as motor oil and other liquid fuel systems, brake fluids, antifreeze, and more. Additionally, they can be used in the air intake and cooling systems to prevent leakage of air or coolant.

Medical Industry

O-rings are vital to medical device applications, such as oxygen tanks, fluid delivery systems, respiratory equipment, and more. Due to their resistance to extreme temperatures, chemicals, and gases, they provide a reliable seal even under highly hazardous conditions.

Electronics

Due to their small size and high strength, O-rings are often used in the electronics industry. They are applied as seals for circuit boards, switches, connectors, and other components to prevent moisture and dust from entering the devices.

Aerospace Industry

O-rings’ ability to withstand extreme temperatures makes them well-suited for various aerospace applications, such as fuel tanks, actuators, landing gear systems, hydraulics, oxygen regulators, cabin pressure control systems, and others.

Food and Beverage

O-rings are ideal for applications that require a tight seal, such as in soft drink dispensers, beer kegs, or chocolate enrober machines. They can also be found in bottle caps, faucets, and other food-related machinery.

Arizona Sealing Devices for High-Quality O-Ring Needs

The variety of applications for O-rings demonstrates their versatility and usefulness across multiple industries. In addition, proper maintenance and care can provide reliable performance over time, making them a cost-effective choice for sealing solutions.

Quality is our top priority here at Arizona Sealing Devices. Our staff meticulously manufactures and calibrates each product we put out to ensure that it is appropriate for the specific use. Thus, you can rely on us to address your needs and deliver only top-notch components!

Contact us to learn more about our range of products and services!

Sealing Device Design Guide

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Seals are critical to the function of a device. For instance, seals prevent sweat and water from entering wearable devices, keeping them free from corrosion, shortage, and failure. Meanwhile, sealing devices maintain parts and components in tip-top shape and reduce the risk of product damage.

When creating a sealing device, the main task is to join two parts so that no thin fluids like water or air can pass through the joint. However, liquids and gasses can press through the narrowest crevices and move in different directions. In addition, even the slightest pressure from these fluids can cause large forces that can distort a component.

Creating a sealing device design could be challenging, but seals don’t often receive proper analysis and attention during the design phase. Since seals control unwanted leakages of liquid and gasses in various components — pumps, valves, pipe fittings, vacuum seals, etc. — failing to utilize the appropriate seal often results in reworking the piece and delays manufacturing and delivery.

This article will dive into the importance of selecting the suitable seal for different applications and the key considerations when designing a sealing device.

Line Identification

Before finding and selecting the appropriate materials for the sealing device, the first step is to identify where the seal will be placed. For an effective seal, engineers must envision a line between the rigid parts that halt the fluid. This will help them see if there are gaps that will prevent the seal from working.

Material Selection

The next step in designing a sealing device is determining the appropriate material for the seal, depending on the specific application or purpose. The first thing to consider when choosing the material is closing force requirements. For this factor, engineers can choose from the following applications:

• Sponge Cross-Section: This is typically used for applications with low closing force, such as door seals and other consumer-type products.
• Dense Section: This is ideal for applications in the industrial setting, like bolting two components together or those demanding a great deal of interference between the two surfaces.

Meanwhile, engineers should also examine the environment — temperatures, chemicals, ultraviolet, and ozone pressure — where the sealing device will be applied and how the seal will be attached. The latter involves seals that require compressions, adhesives, or mechanical attachments.

Design Criteria

Once the material has been selected, the process will move forward to the designing phase. Here, the design should incorporate the following considerations:

• Dimensional requirements
• Friction
• Temperature
• Pressure
• Chemical compatibility

Compression Application Design

Some seals and gaskets are attached using a compression fit into a channel. This application should ensure a 15% to 25% compression in the sponge section channel to hold the seal in place. On the other hand, a 2% to 10% compression is necessary for dense sections.

Adhesive Attachment Application Design

The attachment surface for adhesive applications should be wider than 1/8” to ensure proper binding. Further, the adhesive placement must be done on a flat surface on the seal and substrate.

Mechanical Seal Attachment Application Design

The seal design for mechanical seal attachment should ensure that it will not interfere with the compression of the seal. Hence, an accommodation must be made for inserting the mechanical attachments like staple, nail, and clip.

Products at Arizona Sealing Devices

If you’re looking for a sealing device that would cater to your designs, we at Arizona Sealing Devices are the right people for the job!

Since 1989, we have been offering O-ring supplies for various industries. Our extensive experience has also allowed us to expand our offerings to military and standard gaskets, sheeting, backup rings, quad rings, oil seals, clamps, cord stock, caps, plugs, and custom molded parts.

Contact us to learn more about our products or speak with qualified professionals to address your needs!

EPDM vs. Buna-N

Arizona Sealing Devices is a leading manufacturer and distributor of O-rings, gaskets, plugs, clamps, cable ties, and other commercial and industrial sealing components. We provide standard and custom molded parts as well as military-certified components. Our company is ISO 9001:2015 and AS9120B certified, dedicated to serving customers with small or large orders of high-quality molded components. We work with a wide variety of thermoplastics, rubbers, and other materials to address the needs of unique commercial, industrial, military, medical, and food applications.

Ethylene propylene diene monomer (EPDM) and nitrile butadiene (Buna-N) are two types of rubber that we use to produce sealing components. Although they look alike, EPDM and Buna-N have specific applications for which they are best suited. We will discuss the differences between EPDM and Buna-N, including their respective properties and applications.

Differences Between EPDM and Buna-N

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While both EPDM and Buna-N rubbers are durable, reliable, and resistant to certain types of conditions, each material has its own strengths that make it a good fit for particular applications. Some of the key differences between the two include:

• Usable temperature range: Buna-N offers a temperature range of -40 °C to 107 °C for most applications, including dairy and food processing operations. EPDM, on the other hand, has a temperature range between -48 °C and 135 °C, making it more applicable across a greater range of cold and heat settings, such as hot water and steam environments.
• Chemical resistance: EPDM is resistant to deionized water and acidic, alkaline, and alcohol substances used in common cleaning agents. However, EPDM can be easily damaged by exposure to petroleum-based chemicals. Buna-N offers high resistance to damage from petroleum-based fluids, but it can be damaged by exposure to acids and alkaline chemicals over time.
• Resistance to environmental damage: EPDM is well-regarded for its excellent resistance to weather, including ozone and UV light exposure. This makes it more resistant to aging, especially in outdoor and water-based applications. Buna-N is less resistant to ozone and generally should not be used in outdoor areas.
• Physical properties: Buna-N offers good physical properties, but EPDM is resistant to abrasion and offers high tensile strength.

Applications

Because of these differences, EPDM is commonly preferred for use cases that require added durability, especially with outdoor elements and extreme temperatures. Buna-N’s properties make it an excellent choice for systems that come into contact with petroleum-based chemicals. Here are more details on the best applications for both materials.

EPDM

EPDM is strong, durable, and can withstand frequent cleanings. Because it can also withstand weathering and water exposure, it’s an excellent option for seals and components in systems that handle, process, or store water. Some of the most common applications for EPDM components include:

• Automotive components
• Auto brake systems
• Bumpers
• Conveyor belts
• Dust covers
• Electrical components
• Gaskets
• HVAC parts
• Water storage components
• Weatherstripping

Buna-N

Because Buna-N is a synthetic rubber copolymer, it has a stable structure that resists damage from petroleum-based chemicals. This makes the material an excellent choice for storing or processing petrochemical products. Some of the most common applications of Buna-N are:

• Fuel handling hoses
• Grommets
• Hydraulic fluid seals
• Hydraulic hoses
• Mounts for shock and vibration
• O-rings
• Oil handling equipment
• Rollers
• Transmission fluid seals

High-Performance EPDM and Buna-N Seals From Arizona Sealing Devices

Choosing the right rubber or thermoplastic material for your sealing products is essential for ensuring long-term performance. At Arizona Sealing Devices, we have an extensive inventory of different sealing components constructed from popular polymers that are built to last in commercial, industrial, and military applications. Contact us today to learn more about our manufacturing, distribution, and other capabilities.