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Your Professional Special Type Mechanical Seal Supplier

Our goal is to become your true partner in the field of special type mechanical seal in China. Gaodao Sealing Technology (Suzhou) Co., Ltd. company integrates product research and development, production, matching, maintenance, transformation, technical service and integration, specialized in the production of various pumps, kettle machine seal and all kinds of non-standard mechanical seal research and development. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

Dry Running Mechanical Seal
Dry running mechanical seal is innovative sealing solutions designed to operate without the need for external lubrication or fluid support.
Dry Mechanical Seal
Centrifugal pumps, screw pumps and other special pumps, fans, blowers. Toxic, harmful, flammable medium.
Dry Running Mechanical Seal
Centrifugal pumps, screw pumps and other special pumps. Toxic, harmful, flammable medium.
Dry Running Seal
Centrifugal pumps, screw pumps and other special pumps, fans, blowers. Toxic, harmful, flammable medium.

Why Choose Us

Our team

The company currently has nearly 70 employees, including 12 technical engineers and 5 university and industry consultants.

Quality control

In terms of quality assurance, the company strictly follows the standards and specifications of the industry quality system, uses industry-leading testing equipment to ensure product quality and good reputation, and can accept factory inspection and cargo inspection at any time.

Our services

In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

Advantages of Special Type Mechanical Seal

Improved reliability and seal life

Reliability is the main advantage of dry running containment seals over wet mechanical seals. They operate under low-pressure, dry running conditions for the majority of their life.

Reduced emissions/leakage

Because the seal face clearance is so small with dry running containment seals, leakage to the atmosphere is very low. Gas seals reduce leakage tenfold over wet seals because of the very thin clearance between the seal faces.

Reduced installation and operating costs

A dry running containment seal is similar to a traditional mechanical seal, except it is designed with high precision to negate the need for liquid lubrication at the sealing faces, which can also be source of contamination. If the process fluid is clean and dry, the dry seal doesn’t require a flush, and no reservoir is required—just the plant nitrogen line.

Safe sealing of hazardous fluids

Dry running containment seals are especially useful for preventing leakage of hazardous, flammable, or toxic vapors from the process fluid. The faces of a dry running containment seal are designed for sealing high gas pressures and are very tolerant of pressure fluctuations in the hydrocarbon recovery or flare system.

Specification of Special Type Mechanical Seal

Product name	Special type mechanical seal
Sliding velocity	≤25m/s
Shaft diameter	Φ20~110mm
Pressure	0~40bar
Temperature	-40~176℃ (260℃)

Features of Special Type Mechanical Seal

Face to back, multiple springs, balanced, cartridge seal. Inboard seal double balanced designs for reverse pressure. Inert gas or gas compatible with the medium as barrier gas between inboard and outboard seals.

Gas-lubricated, non-contacting, wear-free operation, low leakage, long life, self-adjusting. Zero leakage, zero emissons, no environmental pollution. Cartridge designs to allow easy installation and maintenace. Modular designs allowing easy part replacement, low maintenance cost.

Application of Special Type Mechanical Seal

Chemical processing

Dry running mechanical seals find extensive use in chemical processing industries where preventing fluid contamination is critical. They provide a reliable seal against corrosive and abrasive fluids, enhancing equipment reliability and process safety.

Pharmaceutical and food processing

In hygienic applications such as pharmaceutical and food processing, maintaining product purity is paramount. Dry running seals offer a contamination-free sealing solution, ensuring compliance with stringent quality and regulatory standards.

Petrochemical and oil & gas

Industries handling volatile and hazardous fluids rely on dry running mechanical seals to prevent leaks and ensure environmental protection. These seals provide a robust barrier against hydrocarbons, acids, and other aggressive substances.

Components of Special Type Mechanical Seal

O-rings or wedges, v-rings, secondary static seals. Static seal or stationary component. Seal for the rotating component to the shaft. A spring member, metal bellows, multiple spring or single spring. Other hardware like gland rings, compression rings, collars, shaft sleeves.

In a mechanical end face ring, the fundamental components are seal ring, mating ring, secondary sealing element, means of actuation, and means of drive. Seal rings and mating rings are called the primary sealing surfaces. In an engineered mechanical seal, the seal faces are machined to order. A long array of sizes and shapes of mechanical seals and seal rings are available from seal manufacturers.

The main part of the seal is the primary sealing surface. Hence, it is called the heart of the mechanical seal. The secondary sealing elements are ptfe wedge, rubber diaphragm, and o-rings. In a seal, the sealing surface has a combination of hard as well as soft material. It is generally made from hard and soft materials. Some examples of hard material are silicon carbide, ceramic or tungsten carbide.

Packing and Shipping of Special Type Mechanical Seal

Packing	Wooden box
Shipping	Shipped by road, sea, rail

FAQ

Q: What is a dry running mechanical seal?

A: Dry running mechanical seals are innovative sealing solutions designed to operate without the need for external lubrication or fluid support.

Q: What happens if a mechanical seal runs dry?

A: Dry running generates frictional heat in the seals. If mechanical seals are not sufficiently lubricated, they run dry. Temperatures rise and the sealing faces and o-rings are damaged - this eventually leads to leakage.

Q: What is the difference between wet and dry mechanical seals?

A: Lubrication: Dry seals have no liquid supply to them while wet seals have coolants and lubes that serve as a fluid film. Applications: Dry seals are used with gases and most all dry media while wet seals are used with liquid-containing systems.

Q: Should you lubricate a mechanical seal?

A: If you've ever worked with pumps or rotating machinery, you've probably wondered whether mechanical seals need lubrication. The short answer is yes. It's not just a small detail; it's essential for ensuring long-term performance and preventing expensive breakdowns.

Q: What is the barrier fluid in a dry mechanical seal?

A: Petroleum based hydraulic and lubricating oils are commonly employed as buffer or barrier fluids in mechanical seals. These fluids serve a dual purpose: they provide a lubricating film at the seal faces and remove heat from the interface, ensuring durability and functionality of the seal over time.

We're professional special type mechanical seal manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale bulk special type mechanical seal made in China here from our factory.

Dry Running Seal, mechanical seal for brazing machines, mechanical seal for industrial pumps

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