Hydraulic & Pneumatic Seals: Materials, Pressures & Common Failures.

Hydraulic and pneumatic seals are integral components in fluid and gas systems, ensuring leak-free operation and optimal performance. Understanding their materials, pressure tolerances, and potential failure modes is crucial for system reliability and longevity.

At Rhondama, our mission is to be the leading supplier of premium hydraulic and pneumatic seals, delivering exceptional quality, reliability, and performance across a wide range of industrial applications. We are dedicated to providing advanced sealing solutions crafted from high-grade materials, designed to withstand diverse operating pressures and environmental conditions. Committed to innovation, technical expertise, and outstanding customer service, rhondama strives to support businesses in maximizing the efficiency and longevity of their hydraulic and pneumatic systems. Trust rhondama for comprehensive, durable sealing products that meet the highest industry standards.

Pressure Ratings:

  • Hydraulic Systems: Typically operate between 100 to 700 bar, with some high-pressure systems exceeding 1000 bar.

  • Pneumatic Systems: Generally function at lower pressures, ranging from 2 to 10 bar.

Exceeding these pressure limits can lead to seal extrusion, deformation, or rupture.

Common causes of seal failure:

  1. Improper Installation: Incorrect handling or installation can damage seals, leading to leaks or premature wear.

  2. Thermal Degradation: Excessive heat can cause seals to harden, crack, or lose elasticity, while low temperatures can make them brittle.

  3. Chemical Incompatibility: Exposure to incompatible fluids can cause seals to swell, shrink, or degrade.

  4. Contamination: Dirt, dust, or metal particles can damage seals, leading to leaks or system inefficiencies.

  5. Wear and Abrasion: Repeated mechanical stress or contact with rough surfaces can erode seals over time.

  6. Aging and Fatigue: Over time, seals can lose elasticity, crack, or split due to prolonged use.

  7. Over-Pressurization: Exceeding the seal's pressure rating can lead to extrusion or rupture.

  8. Improper Storage: Exposure to sunlight, moisture, or high temperatures during storage can degrade seal materials.

Prevention Tips

  • Proper Installation: Follow manufacturer guidelines and use recommended tools to prevent damage during installation.

  • Regular Maintenance: Inspect seals periodically for signs of wear or damage and replace as necessary.

  • Use Compatible Fluids: Ensure that the fluid used is compatible with the seal material to prevent chemical degradation.

  • Control Operating Conditions: Maintain appropriate temperature and pressure levels to prevent thermal degradation and over-pressurisation.

  • Implement Filtration Systems: Use filters to remove contaminants from the system, reducing wear and damage to seals.

Request a quote or contact us

Looking for Hydraulic or Pneumatic Seals? Need guidance on Seal compatibility?
Request a quote or speak with one of our engineers T: +44 1509 218149