Coalescing Oil Water Separator for Diesel Fuel Purification
Introduction:Diesel fuel often contains free water, emulsified water and fine solid impurities during transportation, storage and refueling. These contaminants will corrode engine nozzles, cause fuel injection system blockage and accelerate the wear of power equipment. Our coalescing oil water separator adopts two-stage coalescence-separation technology, which can efficiently separate water and capture particulate pollutants from diesel. It is widely used in diesel tank farms, generator sets, mining machinery and marine fuel systems, providing stable fuel purification solutions for industrial users.
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Product Introduction
This coalescing oil water separator for diesel fuel purification is designed to remove moisture and solid contaminants from diesel oil. It is equipped with high-performance coalescing and separating filter elements, and can be combined with a hydraulic filter and matched filter assemblies to achieve continuous online purification. The core coalescing medium can capture tiny water droplets suspended in diesel, merge small droplets into larger ones, then realize gravity settlement and separation. It can effectively protect diesel engines, fuel pumps and precision fuel injection valves. As a reliable alternative to imported coalescing separators, this unit features compact structure, easy filter replacement and low operation cost, which is widely favored by fuel depots, marine engineering and power generation enterprises.
Working Principle
The whole purification process is divided into pre-filtration, coalescing, separation and oil outlet. First, contaminated diesel enters the pre-filter chamber, where large solid particles such as rust and sediment are intercepted to protect the subsequent coalescing filter element. Then the diesel flows through the coalescing filter cartridge. The special hydrophobic and oleophilic material gathers micro water droplets. Tiny emulsified water droplets collide and merge to form large water drops. After that, the mixed liquid flows into the separation chamber with separation filter elements. The separation element is oleophobic, which prevents the water droplets from being carried away by the oil flow. The water droplets continue to sink down and accumulate at the bottom water collecting chamber. Purified diesel flows upward and out from the oil outlet. The separated water can be discharged manually or automatically through the drain valve at the bottom. The water level gauge can help operators observe the water storage status in real time.
Core Advantages
Excellent coalescing separation performance:
It can remove free water and most emulsified water in diesel, greatly reducing the water content of fuel.
Two-stage filter element design:
Coalescing element + separating element, stable separation effect, strong anti-interference ability.
Visual monitoring configuration:
Equipped with sight glass and water level indicator, users can check water accumulation and oil quality conveniently.
Easy maintenance:
Quick-opening housing design, fast replacement of filter elements without special tools.
Wide compatibility:
Suitable for No.0 diesel, marine diesel and other light fuel oil, adapt to different working flow requirements.
Safe and reliable:
Pressure gauge monitoring, pressure difference alarm function, remind users to replace filter elements in time to avoid overload operation.
Application Scenarios
Diesel fuel purification for land-based diesel generator sets
Marine fuel oil pretreatment and purification for fishing boats and engineering ships
Fuel depot, oil storage tank diesel circulating filtration and water removal
Mining equipment, construction machinery fuel pre-filtering system
Emergency power station, data center backup generator fuel purification
Diesel supply system for oil field and chemical plant
Selection Guide
Rated flow rate:
Choose the model according to the diesel circulation flow or fuel supply flow, and reserve 20% margin for fluctuation.
Fuel type:
Confirm the medium is diesel / light fuel oil; this separator is not suitable for heavy oil and high-viscosity oil.
Installation method:
Optional skid-mounted type or pipeline inline type, matched with pipeline flange standards.
Control mode:
Select manual drain or automatic electric drain valve according to on-site water content.
Differential pressure requirement:
If the raw diesel contains a lot of sludge, choose the model with large filter area and add pre-filter.
FAQ
Q1: What’s the water removal rate of this coalescing oil water separator?
A1: For free water in diesel, the water removal rate can reach over 99%. It can also remove most stable emulsified water.
Q2: How do I know when to replace the coalescing filter cartridge?
A2: Judge by the pressure difference. When the differential pressure exceeds the set value, it means the filter element is blocked and needs replacement.
Q3: Can this separator work continuously for 24 hours?
A3: Yes, it supports continuous online operation, suitable for fuel supply systems that need long-time running.
Q4: Is it necessary to add other filters in front of the coalescing separator?
A4: If the diesel contains a large amount of rust and sediment, it is recommended to add a coarse pre-filter to extend the service life of the coalescing element.
Q5: Do you supply replacement coalescing and separating filter elements?
A5: Yes, we supply matching spare coalescing filter cartridges and separation filter cartridges with short lead time.
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