Mechanical Seals
High-Performance Mechanical Seals for Industrial Applications
Speak With An EngineerWhat Are Mechanical Seals?
Mechanical seals are components primarily found in rotating equipment, such as pumps, compressors, and mixers, and are designed to prevent fluid leakage between the stationary and rotating parts. These seals consist of two primary sealing faces—one stationary and one rotating—that create a secure, lubricated barrier, offering a more efficient and durable solution than traditional packing methods.
Mechanical seals are crucial for minimizing leakage, extending equipment lifespan, and enhancing overall system efficiency. They play a vital role in pharmaceuticals, food processing, and chemicals, where preventing leaks ensures safety, minimizes contamination, and maintains environmental compliance. By reducing friction and wear, mechanical seals can lower maintenance costs and minimize downtime, contributing to longer equipment life and more reliable operation.
Types of Mechanical Seals
Rotary Shaft Seals
Designed to prevent leakage around rotating shafts in pumps and motors
Cartridge Seals
Self-contained units for simplified installation and maintenance
Pusher & Non-Pusher Seals
Options for axial movement and pressure change
Single vs Double Mechanical Seals
Dual seal configurations provide added protection in high-risk or hazardous fluid systems
Industries & Applications
Mechanical seals are essential in aerospace, oil & gas, and medical devices, providing reliable sealing in demanding environments. Mechanical seal applications in the oil and gas industry handle high-pressure and corrosive fluids, while medical-grade sealing solutions ensure sterility and protect sensitive equipment. These seals enhance safety, efficiency, and system integrity across industries.
Aerospace - Seals for high-altitude hydraulic and fuel systems exposed to pressure and vibration.
Oil & Gas - Durable seals for corrosive fluids, high-pressure pumps, and critical containment.
Medical Device - Sterile fluid containment in equipment such as autoclaves and diagnostic machines.
Why Choose Our Mechanical Seals?
PGC mechanical seals offer durability, chemical resistance, and environmental sealing for even the most demanding applications, including high-pressure and high-temperature environments in the oil and gas industry and precision-critical systems in the aerospace industry. PGC's experience in EMI shielding, thermal management, and pressure-sensitive adhesives also enables integrated solutions that enhance performance and reliability. With a commitment to quality, innovation, and customer collaboration, our team provides engineers with dependable gaskets and seals that optimize the efficiency of their designs, reduce maintenance costs, and ensure long-term operational success.
FAQ's
What causes mechanical seals to fail?
Mechanical seals can fail due to several factors, including wear and tear, abrasion, chemical degradation, and thermal expansion.
What is the difference between a mechanical seal and a packing seal?
Mechanical seals utilize two mating surfaces to prevent leakage, providing efficient sealing for high-pressure applications such as pumps and compressors. Packing seals, made of material rings compressed around a shaft, rely on friction and are more cost-effective, making them suited for lower-demand systems, such as valves..
How do mechanical seals help with environmental and energy efficiency concerns?
Mechanical seals minimize leakage and friction, reducing fluid loss, contamination risks, and energy consumption, making them essential in sustainability and regulatory compliance industries.