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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
Andel BundGuard is a cost-effective, self-contained, and easy-to-fit automatic submersible pump and alarm unit designed to dewater oil containment bunds. It works continuously, 24/7/365, to prevent pollution by discriminating between oil and water, expelling only clean water and keeping oil contained.
Bunds are designed to contain oil leaks and spills from storage tanks. However, they are often exposed to the elements and collect rainwater. As a bund fills with water, its containment capacity is reduced, significantly increasing the risk of oil escaping over the bund wall in the event of a tank failure. BundGuard ensures the bund maintains its 110% capacity.
BundGuard system uses advanced circuitry and micro-controller technology to differentiate between oil and water. A robust, submersible stainless steel sensor unit with conductive probes monitors liquid levels in a sump within the bund. When the water reaches a pre-set level, the control unit activates the pump to remove only clean water, safe for discharge to a sewer or interceptor. If oil is detected, the pump deactivates, and an alarm is triggered.
The standard BundGuard pump has a flow rate of approximately 110-150 litres per minute at a 2-3 metre head.
Yes, BundGuard is designed to be used with or without an on-site interceptor. It is guaranteed to pump less than 5 parts per million (ppm) of oil to water, and if required, can be discharged directly to the environment.
Andel offers various sensor unit sizes to suit different sump dimensions, including:
Yes, BundGuard helps sites comply with regulations like The Control of Pollution (Oil Storage) Regulations 2001, which recommend using a fail-safe automatic pumping system to remove water from bunds.
The control panel operates on 110/230 VAC. The total power consumption is 440 Watts when one pump is running and 970 Watts with two pumps running.
Maintenance should be carried out every 6 to 12 months, depending on site conditions. Andel also offers comprehensive maintenance support packages.
BundGuard control panel comes with a 10-year warranty.
| Component | Specification | Details |
|---|---|---|
| Control Panel | Power | 110/230 VAC, 440 Watts (1 pump running), 970 Watts (2 pumps running) |
| Construction | Stainless steel, IP66 rated (also available in GRP enclosure to National Grid spec) | |
| Dimensions (H x W x D) | 410mm x 262mm x 100mm (some sources also state 320mm x 260mm x 120mm for older models) | |
| Indicator LEDs | Power (Green); System Fault (Red); Pump 1 Active (Green); Pump 2 Active (Green); High Oil Alarm (Red); High Water Alarm (Red); Pump 1 Disabled (Yellow); Pump 2 Disabled (Yellow) | |
| Display | 2 x 16 characters LCD for pump cycle counter and system status, plus set-up menus | |
| Outputs | Mains fail, High Water, High Oil, Pump Disable rated at: 10A @ 230VAC (AC1), 0.1A @ 220VDC (DC1) | |
| Fixing | Wall/surface mount via external fixing lug | |
| Sensor Unit | Power and Voltage | Nominal |
| Construction | Stainless steel, immersion proof | |
| Dimensions (H x W x D) | XL Sensor: 1000x180x70mm; Standard Sensor: 570x180x70mm; Compact Sensor: 450x180x70mm; Mini Sensor: 300x220x55mm (some sources also state 350x350x350mm or 450x450x450mm) | |
| Fixing | Free standing in base of sump | |
| Monitoring | Series of conductive probes to monitor liquid levels (common probe, stop pump probe, start pump probe, high water alarm probe, float switch high oil alarm) | |
| Standard Pump | Power and Voltage | 230 VAC (110 VAC optional) |
| Construction | Stainless steel | |
| Dimensions (H x W) | 250mm x 160mm | |
| Safety | Thermal trip with self-reset | |
| Flow Rate | 110 or 150 litres per minute at 2-3 metre head (depending on model/source) | |
| Fixing | Integrated – part of the sensor unit | |
| General | Oil in discharged water | Less than 5 ppm |
| Compliance | Designed for use with on-site, underground drainage interceptor to maintain 110% bund capacity. FilterSepta® option available for Class 1 discharge to surface water (adhering to EN858-1:2002). | |
| Key Features (BundGuard 5) | 2-Pump Capability | Yes |
| LCD Menu Display | Yes | |
| High Oil Alarm | Yes | |
| High Water Alarm | Yes | |
| Mains Failure Alarm | Yes | |
| System Fault Alarm | Yes | |
| Pump Disable | Yes | |
| Historical Data Alarm | Yes | |
| Delay Customisation | Yes | |
| Technical Support Code | Yes | |
| Connector Disconnection Alarm | Yes | |
| Textual Alarms | Yes | |
| Optional Features (BundGuard ORS) | Filter Back-pressure Monitoring Support | Available on some models/options |
| Outlet Water Meter Support | Available on some models/options | |
| Pump Current Monitoring | Available on some models/options | |
| Auto Changeover | Available on some models/options | |
| Over-current Disable | Available on some models/options | |
| Battery Backup | Available on some models/options | |
| MODBUS RTU Interface | Available on some models/options | |
| SMS Alarm Forwarding | Optional |
