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Millipore SDI Instrument
NegotiableUpdate on 05/06
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Overview
Millipore SDI Instrument: Brand: Millipore FI00001 Testing Project: Reverse Osmosis System and Boiler Water Quality Testing Type: Water Quality Rapid Analyzer Measurement Range: SDI5, SDI10, SDI15 Measurement Accuracy: 0.1 Power Supply Voltage: Manual Operation Applicable Industry: Water Plant Laboratory, Disease Control Center, Aquaculture Industry, Hospital, Swimming Pool Processing Customization: No Application: RO System Inlet Water Quality Measurement.
Product Details
| Type: Water Quality Rapid Analyzer | Millipore SDI InstrumentMeasurement range: SDI5, SDI10, SDI15 | Measurement accuracy: 0.1 |
| Power supply voltage: manual operation | Applicable industries: Water plant laboratories, disease control centers, aquaculture industry, hospitals, swimming pools | Customized processing: No |
| Purpose: RO system inlet water quality measurement |
| brand | Millipore | model | ZLFI00001 |
| type | Rapid water quality analyzer |
SDI（Silt Density Index） 测定仪.
Essential accessory for reverse osmosis pure water system.
Millipore SDI InstrumentProduct Description: How to Translate
The Pollution Index (SDI) value, also known as FI (Fouling Index) value, is one of the important parameters of water quality indicators. It characterizes the content of particles, colloids, and other objects in water that can block various water purification equipment. By measuring the SDI value, the corresponding water purification technology or equipment can be selected. According to ASTM method 4189-95, this method is * in the industry.
In the process of reverse osmosis water treatment, SDI value is one of the important indicators for determining the inlet water of the reverse osmosis system; It is the main means of verifying whether the effluent from the pre-treatment system meets the requirements for reverse osmosis inlet water. Its size is crucial for the operational lifespan of reverse osmosis systems.
The SDI value measures the attenuation of flow velocity through a membrane with a diameter of 47mm and a pore size of 0.45 μ m. The reason for choosing a membrane with a pore size of 0.45 μ m is that at this pore size, colloidal substances are more likely to clog the membrane than hard particles such as sand and scale.
The attenuation of flow velocity is converted into a value between 1 and 100, which is the SDI value. The lower the SDI value, the smaller the tendency for water to contaminate and block the membrane. Considering both economy and efficiency, most reverse osmosis manufacturers have an SDI value of no more than 5 for reverse osmosis inlet water.
The Millipore SDI analyzer system includes a pressure reducing valve, a 47mm membrane exchange filter, a diaphragm, and some necessary valves, connecting pipes, and fittings. The system includes a box of mixed cellulose filtration membranes that meet the requirements of ASTM methods. Using this device, only a measuring cylinder and stopwatch need to be prepared to measure SDI values online.
Measuring cylinder, 500ml, PP, with the smallest scale of 5ml.
Stopwatch, accuracy 0.2 seconds.
47mm diameter, 0.45 μ m pore size MF Millipore mixed cellulose ester filter membrane, consumables.
