High-Quality Bodok Seals for Gas-Tight Connections
Bodok seals are specialised sealing washers designed to create a gas-tight seal between a regulator and a gas cylinder. They are widely used in medical, laboratory and industrial gas applications where leak prevention and safety are critical.
What is a Bodok Seal?
A Bodok seal is a reinforced sealing washer that sits between a gas cylinder valve and a regulator to prevent gas leakage. It typically consists of a rubber sealing element bonded to a metal reinforcing ring, which prevents deformation under pressure and ensures consistent sealing performance. Bodok seals are an essential component in systems using the pin index safety system, commonly found in medical gas equipment.
Key Features of Bodok Seals
- Provides a secure gas-tight seal between regulator and cylinder
- Reinforced with a metal ring to prevent splaying
- Resistant to high pressure gas systems (up to ~2000 psi / 140 bar)
- Incombustible and suitable for oxygen and medical gases
- Designed for repeated connection and disconnection cycles
- Compact and easy to install
Applications of Bodok Seals
- Medical & Healthcare Equipment
- Oxygen cylinders
- Anaesthetic machines
- Dental and veterinary gas systems
Bodok seals are widely used in hospitals and healthcare environments where anaesthetic and breathing gases are supplied.
- Laboratory & Gas Supply Systems
- Gas regulators
- Cylinder connections
- Research and testing equipment
- Industrial Gas Applications
- Portable gas cylinders
- Pressure regulators
- Specialist gas delivery systems
Their reliability makes them essential wherever a safe, leak-free gas connection is required.
Bodok Seal Materials & Specifications
Bodok seals are available in a range of materials to suit different applications:
- Nitrile (NBR) – general-purpose sealing
- Neoprene – commonly used in medical applications
- Viton (FKM) – enhanced chemical and temperature resistance
- HNBR – improved durability and performance
Typical dimensions:
- Outside diameter: ~15.5 mm
- Inside diameter: ~13 mm
- Thickness: ~1.7 mm
(Exact specifications may vary depending on application requirements.)
Why Choose Bodok Seals?
Compared to traditional fibre washers, Bodok seals offer:
- Improved durability and resistance to wear
- Better sealing performance under pressure
- Reduced risk of leakage during cylinder changes
- Easier handling and installation
They were developed to overcome the limitations of older washer designs, which could deform or leak under pressure.
FAQs About Bodok Seals
1. What is a Bodok seal used for?
A Bodok seal is used to create a gas-tight connection between a gas cylinder and a regulator. It prevents gas leaks in medical, laboratory and industrial gas systems.
2. Are Bodok seals reusable?
Bodok seals are designed for durability, but they should be inspected regularly and replaced if there are signs of wear, damage or deformation to ensure a safe seal.
3. What materials are Bodok seals made from?
Bodok seals are typically made from a rubber sealing element (such as nitrile, neoprene or Viton) bonded to a metal reinforcing ring to maintain shape under pressure.
4. Are Bodok seals suitable for oxygen use?
Yes, Bodok seals are commonly used in oxygen and medical gas systems, provided the correct material specification is selected for the application.
5. What size are standard Bodok seals?
Standard Bodok seals are typically around 15.5mm outer diameter, 13mm inner diameter and approximately 1.7mm thick, although specifications can vary.