Yes, RD100 contains a small amount of palm oil, up to 7% in 2021. We have the intention of 0% palm oil in RD100 by 2023.

The Reduced Pressure Zone Valve Assembly (Figure 2) consists of two independently operating check valves just like the Double-Check as well as a hydraulically operated differential relief valve located below the first check valve.

Watch the video below for an example of RPZ flooding and to see just how much water is discharged when a small amount of debris becomes lodged in the device.

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We have selected to work with a refinery that only uses a small amount of sustainably grown palm oil. The palm oil is sourced from farms which are traced and audited and only use trees which are over 10 years old.

Consider a flow-stop situation, like one that might naturally occur at the end of the day (Figure 4). If you look closely, you can see that a small pebble has lodged in the #2 check valve. Now imagine some sort of back siphon event over night. Perhaps a nearby building fire leaches the water back with the draw of a fire hydrant; or a pump station fails; or a water main breaks. Because the #2 check valve is not closing, all the water that has been delivered to the building will continue to flow out the relief valve until the private lines are cleared. If this is a four story building, that’s a lot of water.

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After Scandinavia and Baltic countries, the Channel Islands will become only the 11th place in the world to offer the new fuel, which is branded locally RD100.

The main thing to take away from this is that both backflow prevention device types perform the same function when they are operating properly, but only the RPZ is designed to protect the public water supply by disposing of any backwards-flowing water if any of the check valves or the relief valve fails.

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How do you determine hazard? The simple answer is that the purveyor determines it, but every jurisdiction is different. Every city has its own list of named examples for what constitutes the hazard threshold. Here is an example from Washington DC. They also stipulate that if the anticipated use, as you know it, is not named explicitly, then they reserve the right to make the decision during plans review. It’s also important to understand that you cannot, as a designer, over-protect the incoming water service. This means there is no penalty for providing the higher degree of protection.

Renewable Diesel is available from many distributors and refiners , some of them still use a significant proportion of palm oil in there feedstock.That is why Rubis has decided to source its Renewable Diesel directly from Neste, a company who has managed to transform from a regional oil refining company into a global leader in renewable fuels.Neste’ raw material feedstock is made of more than ten different raw materials and is focusing on waste and residue oils. However Palm Oil still accounts for approximately 20% of the raw material feedstock.All of it is certified and fully traceable and represents less than 0.5% of the global consumption of palm oil, and less than 3% of the global consumption within the biofuel industry.Traceability goes all the way to the plantation level. Oil is sourced carefully from screened, responsible producers in Malaysia and Indonesia that are committed to certification and principles of sustainability. Palm oil is sourced directly from the producer companies instead of purchasing separate certificates from the world market. Rubis and Neste share the same value of regularly engaging directly with their own suppliers. Buying directly provides better transparency and influence in the supply chain – the more direct the supply chain, the better. Rubis chose Neste because they transparently disclose their forest footprint as part of the CDP Forests program. In January 2019, Neste’s deforestation risk management performance was evaluated as belonging to the leading performers lists.More details can be found on:https://www.neste.com/corporate-info/sustainability/sustainable-supply-chain/sustainably-produced-palm-oilhttps://www.neste.com/corporate-info/sustainability/sustainable-supply-chain/traceability-dashboard/palm-oil-dashboard

RD100 may actually improve your engine performance because it has a higher cetane rating than conventional diesel (70 vs 50) and therefore operates more efficiently with cleaner combustion.

RD100 will help reduce local traffic emissions, in particular with cans and trucks in town. This is especially beneficial when you consider most local drivers make short journeys and spend a lot of time in traffic congestion, especially at the start and end of the day. Scientific studies show that when RD100 is used in its 100% renewable form it can result in:

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A designer may specify one of 2 types of backflow prevention devices. First, the Double-Check Valve Assembly. This is often shortened to DC and is typically thought of as the appropriate solution for low hazard conditions. Second, the Reduced Pressure Zone Valve Assembly, often shortened to RP or RPZ, is thought of as the appropriate solution for high hazard conditions.

The Double-Check Assembly (Figure 1) was developed in the 1950s for the fire industry. Any time the pressure on the property (downstream) side exceeds the pressure on the city (public) side, the two redundant check valves close stopping the backwards water flow. There are two problems with the Double-Check backflow preventer. First, no remedy exists in the event of a malfunction of the valve closures or if debris in the water line causes the valves to not close completely. Second, and this is the big problem, there is no way to know when such a failure has occurred without conducting a full test by a qualified professional.  The Double-Check is a closed system. It has no method of revealing whether the internal check valves are functioning properly and no way to detect the presence of debris that is impeding full closure.

RD100 will help reduce carbon emissions immediately and the older and less developed engine is, the greater the impact will be.

Rubis are currently supplying selected forecourts in Jersey and Guernsey with more forecourts expected to come on board shortly:

RD100 is produced using waste fats, residues and vegetable oils and is classified as a Hydrotreated Vegetable Oil. RD100 has an identical chemical structure to regular diesel and can therefore replace fossil diesel today. It has better combustion, filterability and cold temperature resistance meaning it is better for diesel vehicles, particularly in Jersey where most journeys are short, and engines don’t always reach full operating temperature.

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Rubis, the Channel Islands’ most forward-thinking fuel distributor, offers an advanced biofuel, as an immediate solution to reduce carbon emissions. RD100 is a clear and odourless fuel which is refined from 100% renewable sources such as vegetable oils from rapeseed, sunflower and soybean, and waste fats such as animal fats or used cooking oil.

The WWF highlights that as the palm oil is RSPO certified it ‘give you the confidence that the palm oil was produced in a socially and environmentally responsible way.’ More from the WWF can be found here.

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At the moment everyone is talking about electric vehicles and, of course, they are one option as part of the mix of opportunities to cut carbon emissions. But they are expensive to buy, not in plentiful supply and may not be the best long-term solution, because of the environmental and financial cost of building, replacing and recycling the batteries and the amount of new infrastructure that has to be invested in to encourage mass adoption. The amount of carbon emissions related to car manufacturing and recycling is significant, sometimes even more for long range EVs and its batteries; keeping your existing car avoids it. This may not be a challenge locally but for people who want to take their vehicles to the UK or Europe, range is a concern. Significant sums need to be invested to make electric vehicles a common reality on our roads.Many vehicles that currently run on conventional diesel will still be on the roads for years to come so we are in a transition period and nobody can say how long that will last. RD100 can have an immediate impact and start reducing carbon emissions during this transition period.More likely fuels such as renewable diesel and in the future hydrogen cell technology will provide a more sustainable answer in the longer term.

When a flow stop occurs, both check valves close. At that moment, the relief valve opens and evacuates the water between the valves. (Figure 3) Some think that this event defines the limit of how much water can ever flow from the RPZ into a drain. This is not so.

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Unlike some 1st generation biofuels containing FAME, which are blended into fossil fuels, RD100 does not have to be blended and meets the toughest requirements set by the automotive industry, avoiding the storage issues sometimes associated with them. It is fully compatible with all modern diesel engines in cars, buses, trucks and non-road machinery and is also suitable for marine and shipping clients, who have so far had to avoid using biofuels with FAME. At a local level the exhaust emissions will improve air quality when compared to 1st generation biofuels and fossil diesel; there is a significant reduction in particulates, NOx and carbon monoxide. Then at a global level the carbon emissions are reduced by up to 90%, due to no new carbon being released in the atmosphere during the lifecycle of the fuel, creating a virtuous global carbon cycle.

The refinery, Neste, is a member of RSPO and the palm oil used is RSPO certified. Neste requires all their palm oil suppliers to be members of the Roundtable on Sustainable Palm Oil (RSPO) organization. The organization requires its members to commit themselves to respecting human rights and protecting rainforests.

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RD100 is just one of the ways Rubis are delivering solutions using multiple energy sources to make our islands cleaner for tomorrow. Find out how you can go greener by switching to 100% Renewable Diesel.

RD100 uses the same feedstocks as FAME but a different refining process that removes some of the issues experienced with FAME such as microbiological growth, long-term stability problems, water contamination and in some circumstances, higher vehicle maintenance costs

RD100 is a clear and odourless fuel which is refined from 100% renewable sources such as vegetable oils from rapeseed, sunflower and soybean, and waste fats such as animal fats or used cooking oil.

Now consider a full failure of the #2 check valve, like one that might occur if the device is knocked out of round or has a mechanical failure. It’s essentially the same event with the exception that due to the larger valve opening, there is actually a higher flood rate. Now you have water flowing through the relief valve at full head pressure. Again, if this is a large or multi-story building, that’s a lot of water very fast.

Have a question about a backflow preventer enclosure?Click the contact us button below and one of our experts will be able to help with your specific enclosure needs.

RD100 can be added to your tank now and drivers of diesel vehicles can start to reduce their emissions immediately. RD100 is fully compatible with the existing fuel distribution infrastructure. It can be used as 100% renewable diesel or blended with conventional diesel, which means you can put it in your tank now and there is no need for any modifications to your vehicle.If you have any concerns it is always worth speaking with your vehicle manufacturer.

This hydraulic valve and its placement makes the RPZ virtually fail-safe but it comes at a cost to the area around the device.

You’ve heard these phrases and acronyms repeatedly. If you are a designer, you feel sure that you are expected to know what they mean. Here’s a quick rundown on what they are and how they differ.