The Sirius brand of marine gas regulators are certified to the latest EN 12864:2001 standard including Annex M for gas supply to appliances in seawater boats. The Sirius regulators are equipped with a integral pressure relief valve and vent as part of the design, there by doing away with the need for separate parts in an area where space is a premium. They are constructed using suitably corrosion resistant materials for the marine environment giving them a working life far in excess of standard camping & caravanning gas regulators.
Common features to all regulators 4005, 4006, 4007 & 4008
- Fully certified to EN 12864 annex M (marine environment)
- Fitted with 75 mbar over-pressure relief valve
- Vent orifice with 1/8 BSP thread with downward facing nozzle
- Vent orifice with anti-moisture and contaminant screen
- Re-enforced diaphragm
- Marine grade materials
IT IS OUR INTERPRETATION OF THE STANDARDS THAT ANY SALTWATER VESSEL WITH A GAS SYSTEM THAT IS NOT FITTED WITH AN EN 12864 ANNEX M APPROVED GAS REGULATOR IS NOT COMPLIANT WITH BS EN ISO 10239 AND THEREFORE THE VESSELS INSURANCE COULD BE INVALID!
Why Sirius Regulators - The technical bit
All LPG regulator used in the marine market MUST incorporate either an over pressure shut off valve (OPSO) or Over pressure relief valve,
OPSO valves have proven to have too many moving parts to be reliable in a marine environment.
Due to heel and movement on a boat, the naturally accruing presence of small amounts of high pressure gas entering the low pressure side of the system is increased, this high pressure removes the grease from the valves and safety cocks, causing them to leak and seize.
WHY OVER-PRESSURE DEVICE?
• Gas Cylinders can be pressurised up to 7 bar.
• Gas cookers have an operating pressure of 30 mbar.
• Appliance control valves only certified to 150 mbar.
If the diaphragm fails or the internal lock-up valve does not close due to seizure, full cylinder pressure can enter the low-pressure side, resulting in a very dangerous leak at the appliance, the appliance will then need to be repaired by a skilled engineer before it is safe to use again.
This can also happen if liquid LPG exits the cylinder, due to heel or violent movement of the boat or vessel.
EN 12864 annex M
This standard is for the design and manufacture of regulators for LPG cylinders to supply appliances installed in saltwater boats.
Main points :-
• Material in contact with the atmosphere shall be suitably corrosion resistant. In particular this includes internal components above the diaphragm.
• The vent shall be on the edge of the diaphragm. In a suitable location and of suitable size to drain water which may collect on the diaphragm.
• Shall incorporate an over-pressure relief device, the vent shall be provided with a pipe connection facing downwards.
• Operating pressure specification to annex D.
• PD 5482 – 3 2005: Codes of practise for LPG installations in boats, yachts and other vessels, STATES. Regulators must conform to EN 12864
• EN ISO 10239-2000: Small craft LPG installation regulation covering all vessels built after 15th November 2000, STATES Regulators must incorporate a pressure reducing device. (OVER-PRESSURE RELIEF)
• Be suitably resistant.
• Regulators installed in vessels used in a saltwater environment must conform to EN 12863 annex M
THE USE OF SUB-STANDARD REGULATORS COULD INVALIDATE THE VESSELS INSURANCE COVER!