O-Rings and Bonded Seals

The White House Products Ltd. inventory of hydraulic equipment includes this collection of O-rings and bonded seals.

O-Rings

O-rings are simple yet highly effective components widely used as gaskets in hydraulic systems to create leak-proof seals between parts. These versatile devices are inexpensive, dependable, and easy to install, making them useful in both static and dynamic applications. Their sealing action is vital in preventing leaks in a wide array of hydraulic equipment, from engines to hydraulic adaptors and plumbing systems.

To ensure reliable performance, O-rings must be made from materials that can handle the temperature range of specific applications. Choosing the correct material and hardness ensures durability and reduces the risk of failure.

O-Ring Applications

O-rings are widely used across multiple industries for their flexibility and sealing capabilities:

• Hydraulic fittings and equipment - Preventing leakage in hydraulic pumps, valves, and actuators.
• Engines and machinery - Ensuring a leak-proof seal in components subjected to motion or vibration.
• Plumbing systems - Maintaining watertight connections in pipes and joints.
• Industrial applications - Protecting equipment operating under pressure applications in oil and gas, automotive, and aerospace industries.

Causes of O-Ring Failure

Despite their reliability, O-rings can fail due to various factors:

• Improper installation - Misalignment or damage during fitting can prevent proper sealing action.
• Gas expansion rupture - Rapid system pressure changes can trap gas inside the rubber seal, causing rupture.
• Extreme temperatures - Exposure to high temperature or low temperature environments can degrade the material.
• Excessive pressure - Overloading the O-ring beyond its capacity may lead to deformation or failure.
• Material incompatibility - Using the wrong material for the application's chemical or thermal demands.

Bonded Seals

A bonded seal, also known as a dowty seal or dowty washer, is a sealing component designed for high-pressure applications where O-rings may be inadequate for the purpose. These seals consist of a metal outside ring and a rubber elastomer bonded to the inside, creating a strong and reliable sealing solution for hydraulic systems. Their dual-material design ensures durability and resistance to leaks, even in challenging conditions.

Bonded seals are widely used in hydraulic fittings to provide a secure, leak-proof connection. They are particularly effective in preventing leakage in face seal applications and hydraulic adaptors, where high pressures can compromise traditional sealing methods.

Applications for Bonded Seals

• Hydraulic fittings - Ensuring tight seals in high-pressure connections to prevent leaks.
• Face seal applications - Providing a reliable barrier in systems where precise alignment is critical.
• Hydraulic equipment - Enhancing the performance and longevity of pumps, valves, and cylinders.
• Industrial machinery - Used in systems requiring durability under fluctuating temperatures and pressures.
• Oil and gas industry - Protecting equipment in environments with extreme temperature variations.

With a strong sealing action and compatibility with British standard specifications, bonded seals are an indispensable choice for high-performance hydraulic systems.
Whether you need a rubber seal for low-pressure operations or a durable O-ring seal for demanding environments, White House Products can deliver the high-quality components you need to ensure best results.

Sealing Solutions from White House Products

We carry a variety of O-ring sizes and materials. Our inventory includes synthetic rubber nitrile O-rings (noted for heat- and temperature-resistance, as well as imperviousness to many chemicals) and Viton O-rings (noted for fuel- and oil-resistance). We also carry a selection of bonded seals and bonded seal kits for use in high-pressure environments where conventional seals are ineffective. Feel free to explore this section for more information on our O-rings and bonded seals.