Mechanical Seals
Mechanical seals are an essential component in various industrial applications that require the safe and efficient transfer of fluids. These seals are used to prevent leaks, reduce friction and increase the lifespan of equipment.
Types of mechanical seals
There are several types of mechanical seals, each with its own unique design and features:
Single Spring Mechanical Seals
This type of seal consists of a single spring that applies pressure to the seal faces to create a tight seal. It is a simple and cost-effective option and is commonly used in low-pressure and low-temperature applications.Multi-Spring Mechanical Seals
This type of seal consists of multiple springs arranged in a circular pattern. The springs work together to create a more even pressure distribution across the seal faces, which can improve the seal's performance and durability. Multi-spring seals are used in a wide range of applications, including high-pressure and high-temperature environments.Cartridge Mechanical Seals
Cartridge seals are pre-assembled and can be easily installed into the equipment without the need for complex alignment or adjustment. They are typically more expensive than other types of seals, but they offer ease of installation, reduced downtime and improved seal performance.Metal Bellows Mechanical Seals
This type of seal uses thin metal bellows instead of a spring to apply pressure to the seal faces. Metal bellows seals are highly effective in applications with high pressures, temperatures or corrosive fluids, as they can withstand extreme conditions.Elastomeric Bellows Mechanical Seals
Elastomeric bellows seals are similar to metal bellows seals, but they use a flexible elastomer instead of metal bellows. They are a cost-effective alternative to metal bellows seals and are commonly used in low-pressure and low-temperature applications.Split Mechanical Seals
Split seals are designed to be split into two halves, which can be easily installed around the equipment shaft without the need for disassembly of the equipment. They are commonly used in applications where the equipment cannot be easily disassembled for seal replacement.Range
Description
The OEM Mechanical Seal supports the maintenance and repair market for OEM pumps, compressors and rotating equipment. These designs are improved to address common issues, providing reliable and high-quality seals. The OEM Mechanical Seal series offers a comprehensive range of options to meet various requirements, making it an excellent choice for effective maintenance and repair of OEM equipment.
Conical 'O'-Ring Mounted Mechanical Seals are versatile and well-suited for pumps, compressors, mixers and agitators. Available in DIN and standard dimensions, these seals offer reliable performance and prevent leakage. Their conical shape allows for easy installation and alignment. With rigorous testing, these seals ensure durability and efficiency in demanding operating conditions, contributing to equipment productivity. 
Parallel 'O'-Ring Mounted Mechanical Seals are robust and versatile, making them suitable for marine, paper, refrigeration, wastewater and textile industries. Available in both imperial and metric sizes, these seals provide reliable sealing performance in demanding environments. Their durable construction ensures long-lasting performance, preventing leaks and ensuring system integrity.
Water Pump Mechanical Seals are low-cost, yet highly reliable sealing solutions commonly used in large quantities for the production of pumps for pools, showers, irrigation and heating systems. These seals provide excellent sealing performance specifically tailored for water applications. With their cost-effectiveness and dependable sealing capabilities, water pump mechanical seals are a popular choice for various water-related industries. 
The highly versatile Mechanical Elastomer Bellows Seal is suitable for nearly any application and performs exceptionally well when handling media containing solid particles, thanks to its non-clogging design. This seal provides reliable sealing performance in diverse operating conditions, making it an excellent choice for a wide range of industrial applications.
The balanced and unbalanced Multiple Spring Mechanical Seals are designed for demanding applications. If you are dealing with a corrosive environment, this seal is the ideal choice. It features a standard design with stainless steel construction, ensuring durability and resistance to corrosion. These seals provide reliable sealing performance in challenging conditions, making them ideal for demanding industrial applications. 
The Diaphragm Mechanical seal is a single spring seal with an elastomer membrane, designed for demanding applications. Its range of sizes covers all standard shaft and housing dimensions, ensuring compatibility with various equipment. These seals offer reliable sealing performance and are suitable for use in challenging operating conditions. With its durable construction and versatile sizing options, the Diaphragm Mechanical seal is a reliable choice for a wide range of industrial applications. 
Wave Spring Mechanical Seals are compact and smart bi-directional seals designed for applications with limited space, such as rotating lobe pumps. Their hygienic properties make them ideal for pumps used in the food, dairy, brewery and pharmaceutical industries. These seals provide reliable sealing performance while occupying minimal space. With their compact design and suitability for industries with stringent cleanliness requirements, wave spring mechanical seals are a preferred choice for various critical applications.
The easily installed Cartridge Mechanical Seals feature a balanced design with multiple springs and an O-ring-mounted cartridge. They are available with various bolt combinations and, of course, flush ports. These seals offer convenient installation and provide reliable sealing performance. The cartridge design simplifies maintenance and replacement, reducing downtime. With the availability of different bolt combinations and flush ports, these seals can be customised to suit specific application requirements, ensuring optimal performance and longevity. 
Stationary Mechanical Seals are essential components used in various industrial applications. These seals are designed to provide a reliable and stationary sealing solution between two stationary surfaces, such as pump casings or gearbox housings. They effectively prevent leakage and maintain the integrity of the system. Stationary mechanical seals are available in different designs and materials to suit specific requirements and operating conditions. These seals play a crucial role in ensuring the efficiency, safety and longevity of equipment in a wide range of industries, including manufacturing, oil and gas, chemical processing and more. Choosing the right mechanical seal for your application
When it comes to selecting a mechanical seal for your industrial application, there are several factors to consider:
Fluid Type and Properties: The type of fluid being transferred and its properties, such as temperature, viscosity and corrosiveness, will impact the selection of the mechanical seal. Different materials and designs may be needed to ensure compatibility with the fluid and prevent leaks.
Operating Conditions: The operating conditions of the equipment, such as pressure, temperature and speed, will also impact the selection of the mechanical seal. The seal must be able to withstand the conditions it will be exposed to, and the right design and material must be chosen to ensure optimal performance.
Equipment Type and Design: The type of equipment the mechanical seal will be used in will also affect the selection process. The design of the equipment, such as the shaft diameter, housing and mounting, will need to be considered to ensure the mechanical seal is compatible.
Industry Standards and Regulations: Industry standards and regulations may also impact the selection of the mechanical seal. Some industries have specific requirements for seals, such as food-grade materials for use in the food industry, or compliance with certain safety standards.
Cost: Finally, the cost of the mechanical seal will also be a factor in the selection process. While cost should not be the sole deciding factor, it is important to consider the long-term costs, such as maintenance and replacement, to ensure the best value for your investment.
Customised mechanical sealsMechanical seals can be customised to meet specific application requirements. Customisation may involve selecting the appropriate materials, sizes and designs to ensure compatibility with the fluid being transferred, the operating conditions of the equipment, and the industry standards and regulations.
Customisation may also involve creating specialised seals for unique applications, such as high-pressure or high-temperature environments, or for specific industries, such as the food and beverage or pharmaceutical industries, which may require specialised materials for compliance with regulations.
In addition to customisation for specific applications, mechanical seals may also be designed for specific equipment types, such as pumps or mixers, to ensure optimal performance and longevity.
Take a look at our engineered sealing solutions or contact us for more information about custom seals.
Benefits of mechanical seals
Improved Safety: Mechanical seals provide a high level of safety by preventing leaks and spills. They can handle high-pressure and high-temperature environments, ensuring that fluids are contained within the equipment. This reduces the risk of accidents, environmental damage and equipment failure.
Reduced Downtime: Mechanical seals are designed to last longer than traditional packing seals. This means that equipment downtime is reduced, as there is less need for maintenance and replacement. This can save businesses time and money in the long run.
Increased Efficiency: Mechanical seals reduce friction and wear, which results in more efficient equipment operation. Less energy is required to overcome the resistance caused by friction, allowing equipment to operate at a higher capacity. This can result in increased productivity and lower operating costs.
Versatility: Mechanical seals can be used in a wide range of applications, from pumps and compressors to mixers and agitators. They are available in a variety of materials, sizes and designs to meet specific industry requirements. This makes them a versatile choice for many industrial applications.
Environmental Friendliness: Mechanical seals are an environmentally friendly choice, as they reduce the risk of leaks and spills that can harm the environment. They also require less maintenance, which reduces the use of resources and waste production.
Contact M Seals
As a leading manufacturer and supplier of mechanical seals, we have a wealth of experience and expertise in mechanical seal design, manufacturing, installation, and maintenance.
Speak to our team of experts to purchase a new mechanical seal, troubleshoot an existing one, or if you simply need advice on maintenance and installation