With the latest advances in various industries, manufacturers of gaskets have created a wide variety of gaskets that are suitable for different applications. Moreover, these manufacturers even supply clients that want to have their gaskets customised and modified according to their specific dimensions and properties.
Based on some data, manufacturers would prefer custom-made gaskets over the premade ones for a lot of reasons. One, custom gaskets can readily meet the desired properties of the client. Another reason is that custom gaskets can rightfully fit surfaces of a specific object or machine parts. In choosing your custom gaskets, you must consider some factors first to ensure that you do not waste valuable time, money, and other resources.
Gaskets can be made from different materials such as paper, rubber, silicone, metal, felt, nitrile rubber, fibreglass, steel, and many more. Each of these materials possess unique qualities and properties that are best utilised in different types of applications. You need to know the type of surfaces that you are dealing with so that you can determine the correct material of your gasket. For example, if your object must deal a large amount of electricity, then you need a copper or steel gasket Rubber gaskets, on the other hand, can be used in resisting extreme temperatures.
Strength and Resistance
As mentioned, the material of your gasket will hugely determine the qualities and properties of your gasket. One of the qualities that your gasket material can define is the ability of your gasket to withstand pressure. Your gasket material can also identify the breaking point of your gasket. Metallic gaskets must be combined with materials that can help them resist corrosion. Alternatively, non-metallic gaskets must have the required strength and elasticity so that they can avoid any leakages from moving or mechanical components.
Pressure and Temperature
Pressure and temperature are crucial in gasket applications. Gaskets are intended to fill in the space between two or more mating surfaces. With their main function, your custom gasket must tolerate a high amount of pressure once the mating surfaces close in. Some degree yielding must also be expected with gaskets for them to be functional. Aside from pressure, gaskets must easily withstand certain temperatures that are given off by the object or component. You do not want to have a melting gasket that can completely obliterate your components or objects.
Given all the mentioned properties of the gaskets, you must also know how to look for the right gasket manufacturer. You cannot possess your desired custom gaskets if your manufacturer does not know how to create a decent one. Your gasket manufacturer must have all the necessary credentials and certifications required for manufacturing gaskets. The facility of your manufacturer must also possess testing equipment to sustain great gasket quality. Your manufacturer must also supply legitimate answers and responses whenever you ask them some important gasket questions.
With us at Gasketech, we can precisely manufacture your custom gaskets according to your preferred materials and specifications. Aside from gaskets, we can also manufacture and supply sealing washers, extrusions, and moulding for all types of industries.
One of the most common seals used in a lot of manufacturing industries today are O-rings. They work by sitting in between two parts or components for them to prevent the unwanted escape of liquids or gases.
A deciding factor in choosing your right O-ring is its material. Each material contains a unique set of properties that make them suitable for specific fluid sealing applications. The following are some materials used for manufacturing O-rings and several essential tips on how and when to use them.
The Alfas O-rings can work at a temperature range of -14° to +446°F, making them suitable in high-temperature environments and chemical applications. Some applications of Alfas O-ring include seals for aerospace, oil-related seals, and an industrial environment.
High fluorine grade O-rings can effectively work with methanol/ethanol-blended gasoline, while base resist grades can provide better oil protection and endure high temperatures. With these properties, fluorocarbons are deemed useful in applications with low compression and high temperatures such as aircraft engines and automotive fuel handling systems.
Nitrile or Buna-N
Nitrile O-rings are known for their tear-resistance and the ability to withstand abrasive treatments. They can be used on certain limited temperature and resistance requirements, making them great with water, petroleum oils, and several hydraulic fluids.
Perfluoroelastomer O-rings combines the resistance of polytetrafluoroethylene with the flexibility and elasticity of fluorocarbon rubber (or FKM). This type of O-rings has terrific chemical resistance, excellent gas and liquid permeation resistance, and excellent weather and ozone resistance. They are also self-extinguishing and non-flammable, making them suitable for locations with high temperatures and paint and coating operations.
Silicone O-rings can operate within a temperature range of -85° to +400° F, making them appropriate for high-temperature seals. They can work well with water, steam, or petroleum fluids, as long as the application is static.
Natural rubber is the most commonly used material for O-rings since it has high tensile strength, high resilience, high abrasion, and high tear resistance. This material can also give excellent resistance to organic compounds like alcohols and acids. Natural rubber O-rings are used in seals of food and beverages. They are also used in non-hydraulic sealing applications.
Teflon O-rings are virtually inert to almost all industrial chemicals and possess adequate toughness. They also perform well with different chemicals at high temperatures. Additionally, these rings have high endurance ratings and high resistance to ozone, making them usable for static and slow intermittent dynamic seals.
Polyurethane O-rings can withstand extended contact with carbon dioxide. They are also tough and can resist extrusion and abrasion. Some common applications for this type of rings include valves, cylinders, pneumatic systems, hydraulic fittings, fluid transfer systems, and firearms.
Knowing the properties and qualities of these O-rings can help you choose which one of them is needed for your specific application. If you have some questions about O-rings, just give us a call at Gasketech.