Over 30 years’ experience in manufacturing innovative products and delivering customer-focused services
- Leak detection
- Water sustainability
- Oil storage maintenance & compliance
- Drainage & interceptor maintenance
- Flood defence
Oil storage products
Over 30 years’ experience in manufacturing innovative products and delivering customer-focused services
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The BundGuard® pollution prevention system was developed by Andel in 1992 as a response to the UK electricity industry’s growing need for an effective dewatering solution at substation sites. Today, over 50,000 BundGuard® units are installed worldwide, protecting site operators and preventing hydrocarbons from escaping and contaminating the environment.
BundGuard® brings the latest communications technology and functionality to Andel’s market-leading bund dewatering system. BundGuard® is a sustainable, cost-effective and easy-to-fit dewatering and high-oil alarm system, comprising robust UV-resistant control panel, submersible sensor / pump assembly and mounting system.
Rigorous tests show that oil present in water discharged by BundGuard® is less than 5 ppm.
NOTE: Andel continues to provide service and maintenance support BundGuard® 4.
Because most bunds are exposed to the elements and are likely to fill with rainwater, the containment capacity can be compromised creating the risk of oil overtopping the bund wall in the event of a tank failure. Robust measures need to be put in place to extract rainwater from exposed bunds to prevent a pollution incident.
Using advanced circuitry and micro-controller technology, BundGuard® discriminates between oil and water, keeping oil contained and pumping water from the sump in the bunded containment area.
The robust, submersible stainless-steel sensor unit monitors the different liquid levels via a series of conductive probes. The control unit activates the pump as required to remove only clean water, safe to sewer or interceptor, depending on site circumstances.
Failsafe systems and a range of visual and relay alarm outputs ensure complete safety and communication to remote monitoring systems.
Andel recommends the xenon compact, vandal-proof beacon with light diffuser for improved visibility. Weatherproof to IP67, with a choice of installation locations.
Market-leading BundGuard® is a cost-effective, self-contained and easy-to-fit automatic submersible pump and alarm unit that is installed in a sump, within a bund and works continuously and automatically 24 hours a day, 7 days a week, 365 days a year.
Rigorous tests show that oil present in water discharged by BundGuard® is less than 5 ppm. For sensitive site conditions only, If there is no underground interceptor tank, Andel recommends FilterSepta®, a cost-effective above ground system that guarantees a Class 1 discharge of water from the bund to surface water adhereing to EN858-1:2002.
THE COMMON PROBE 1 creates conductivity with the other probes when immersed in water.
The sensitivity of the probes can be configured to suit all site conditions, ensuring BundGuard® always delivers optimum performance, even in bund water that has low conductivity.
The control unit monitors conductivity between the probes and activates the pump when the water level reaches the START PUMP PROBE 3 and switches the pump off when the water level drops below the STOP PUMP PROBE 2.
If the water level rises and reaches the High WATER ALARM PROBE 4 a second pump will be activated (if fitted).
THE HIGH OIL LEVEL FLOAT SWITCH ALARM 5 puts the control panel into high oil alarm and deactivates the alarm as the level drops below the float switch.
BundGuard® is available in a number of specifications to suit both site conditions and customer requirements. The fundamental design, however, remains the same and BundGuard® can be relied upon to give consistently accurate readings, avoiding the risk of 'chattering', a problem often experienced with some other dewatering pumps, where sensor units are prone to false readings, repeatedly activating on and off and potentially damaging pumps and burning out components.
BundGuard® control panel and submersible sensor unit are supplied as standard in robust, UV-resistant, stainless-steel enclosures. With regular maintenance, BundGuard® units have proven to perform for upwards of 15 years in all weather conditions. BundGuard® control unit can also be also be supplied in a GRP enclosure. The market-leading BundGuard® has a track record that speaks for itself.
Special-builds can be linked to sensors to detect unwanted contaminants in a site's trade effluent, where if high levels are detected, the system will deactivate the pump so the contaminants are contained and do not reach the drainage system.
A bespoke system, using control units in GRP enclosures was built to interface with the glycol system alarms, so that if the glycol system alarms trigger, a signal is sent to immediately disable the BundGuard® pump. The system also alerts the site to initiate a response.
Andel supplies a range of sensor units. Smaller units are available for customers who have an existing sump with smaller dimensions than the standard sump size, for example:
XL Sensor – 1000mm x 1000mm x 1000mm
Standard Sensor – 600mm x 600mm x 600mm
Compact Sensor – 450mm x 450mm x 450mm
Mini Sensor – 350mm x 350mm x 350mm
