LPG cylinder regulators play a crucial role in ensuring the safe usage of LPG on boats. Combined with the incorporation of Over Pressure Shut Off (OPSO) devices, the level of safety is significantly enhanced. In this post, we will explore the purpose and function of LPG cylinder regulators and over-pressure shut-off devices.
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Purpose of LPG Cylinder Regulators
LPG cylinder regulators facilitate the safe flow of gas from the cylinder to the appliances they fuel. They act as a critical control mechanism, regulating the pressure of the gas to ensure consistent and reliable performance. Moreover, regulators help maintain a steady flow rate, compensating for variations in temperature and gas pressure. It is important that regulators and their hoses are checked periodically and changed when their lifespan is up.

Incorporating Over Pressure Shut Off (OPSO)
Since at least 2014, all newly installed regulators require Over Pressure Shut Off (OPSO) devices. These devices provide an additional layer of safety in LPG installations. They automatically shut off the gas supply if the pressure exceeds the specified limit, preventing potential accidents or equipment damage. OPSO devices are an essential component in LPG installations where the pressure coming directly from the cylinder can be up to 6 Bar (around 90 PSI)
Involvement of Gas Safe Registered Engineers
The installation and maintenance of LPG cylinder regulators with OPSOs should only be carried out by GasSafe registered engineers. These professionals have the necessary skills and knowledge. They possess the experience needed to ensure proper functioning and compliance with current laws. They also adhere to the latest safety standards. Your GasSafe engineer should check the entire installation when working on any part of it. They should also test the installation and issue you an LPG Safety Certificate to certify this.
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2 responses to “Understanding the Function of LPG Cylinder Regulators and Over Pressure Shut Off (OPSO) Devices”
[…] Since 2010, the gas safety standard for boats requires LPG cylinder regulators to incorporate an Over Pressure Shut Off (OPSO) device. There are currently no Butane compatible cylinder regulators with OPSO on the market. Since […]
[…] A critical part of boat LPG gas installations is the regulator. It controls the pressure of the gas flowing from the cylinder to your appliances. These devices are absolutely fundamental to safe operation. Consequently, we pay close attention to them during every check. If you’re keen to get into the details, you can learn more by reading our guide on the function of LPG regulators and OPSO devices. […]