What is BS EN 13617-3 - Safety requirements for construction and performance of shear valves about?
BS EN 13617-3 specifies safety and environmental requirements for the construction and performance of shear valves to be fitted to metering pumps, dispensers, and/or satellite delivery systems installed at petrol filling stations and used to dispense liquid fuels and aqueous urea solution into the tanks of motor vehicles, boats and light aircraft and into portable containers at flow rates up to 200 l · min−1.
BS EN 13617-3 applies to fuels and their vapours of subdivision and also aqueous urea solution according to ISO 22241-1.
The requirements apply to shear valves at ambient temperatures from −20 °C to +40 °C with the possibility for an extended temperature range.
BS EN 13617-3 pays particular attention to mechanical and hydraulic characteristics.
Note: BS EN 13617-3 does not apply to equipment dispensing compressed or liquefied gases.
Who is BS EN 13617-3 - Safety requirements for construction and performance of shear valves for?
BS EN 13617-3 on Safety requirements for construction and performance of shear valves is beneficial for:
- Petrol pump attendants
- Gas jockeys
- Fuel attendants
- Construction sectors
- Civil engineers and contractors
- Petroleum industries, petrochemical and gas industries
- Manufacturers and installers of shear valves and dispensers
Why should you use BS EN 13617-3- Safety requirements for construction and performance of shear valves?
A shear valve is a critical safety device that is installed under the petrol pump or dispenser. If the dispenser is knocked over or impacted, the valve breaks and shuts the line in both directions, preventing any leakage onto the forecourt.
BS EN 13617-3 assists the user about safety and environmental requirements for the construction and performance of shear valves to be fitted to metering pumps, dispensers, and/or satellite delivery systems installed at petrol filling stations and used to dispense liquid fuels and aqueous urea solution into the tanks of motor vehicles, boats and light aircraft and into portable containers at flow rates.
Overall, BS EN 13617-3 is useful as it guides the safety requirements for the construction and performance of shear valves by determining through different types of tests like pressure test, main valve test, pressure relief valve test.
What’s changed since the last update?
BS EN 13617-3: 2021 supersedes BS EN 13617‑3:2012, which is withdrawn. In comparison with the 2012 edition, the following significant changes were made:
- Shear valves for aqueous urea solution added
- Testing for vapor shear valves is further differentiated from testing for fuel shear valves. Tests B.16 and B.17 are introduced
- Fire resistance tests B.14 and B15 introduced and pass/fail criteria
- The liquid compatibility preconditioning fluid for shear valves is defined in EN 13617-1.