Offers to Sell

Centrifugal pump automatic water supply equipment Working principle: Tap water enters the tank, and the air in the tank is discharged from the vacuum eliminator. After the water is full, the vacuum eliminator closes automatically. When the tap water can meet the water pressure and water demand, the automatic water supply equipment directly supplies water to the water pipe network through the bypass check valve. When the water pipe network pressure is not satisfied with the water demand, the system through the pressure sensor (or pressure controller, electric contact pressure meter) to give a pump starting signal for pump operation. When pump supplies water, water capacity of water pipeline network is greater than the pump flow rate, system can have normal water supply. If water capacity of the tap water pipe network is less than the pump flow rate, the water from water tank as a counter can still have normal water supply. At the moment, the air from the vacuum eliminator enters the tank to eliminate the negative pressure of tap water pipe network for system to recover to normal status. Main components Centrifugal pump, tank, pipeline, pressure sensor, gauge, check valve, gate valve, ball valve etc. Application: Water supply: filtration and conveying in waterworks, water supply in different zones, supercharging in supervisors, supercharging in high-rise buildings. Industrial pressurization: flow water system, cleaning system, high pressure flushing system, firefighting system. Industrial liquid transport: cooling and air conditioning systems, boiler feed water and condensing systems, machine tool kit, acid and alkaline medium transport. Water treatment: ultrafiltration system, reverse osmosis system, distillation system, separator and swimming pool water treatment system. Irrigation: irrigation, sprinkling irrigation, drip irrigation.

Minimum Order: 1 bags

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Minimum Order: 2 barrels

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Minimum Order: 2 barrels

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Minimum Order: 2 barrels

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Minimum Order: 2 barrels

Jansen Calibration is your trusted global partner in calibration instruments, electrical test equipment, and precision measurement solutions. We specialize in supplying a wide range of high-performance tools including loop calibrators, multifunction calibrators, digital pressure gauges, oscilloscopes, multimeters, data loggers, and more. Serving industries such as manufacturing, aerospace, oil & gas, energy, pharmaceuticals, and research labs, we provide tools essential for accurate testing, calibration, and diagnostics. Our products are sourced from top- tier manufacturers and meet international quality and compliance standards. With a strong focus on reliability, technical expertise, and worldwide delivery, Jansen Calibration supports engineers, technicians, and calibration professionals across the globe. We also offer expert consultation to help clients select the right instruments for their specific applications. From environmental monitoring tools to power analyzers, we are committed to precision, performance, and customer satisfaction. Learn more at www.jansencalibration.com

Minimum Order: 1 bags

Jansen Calibration is your trusted global partner in calibration instruments, electrical test equipment, and precision measurement solutions. We specialize in supplying a wide range of high-performance tools including loop calibrators, multifunction calibrators, digital pressure gauges, oscilloscopes, multimeters, data loggers, and more. Serving industries such as manufacturing, aerospace, oil & gas, energy, pharmaceuticals, and research labs, we provide tools essential for accurate testing, calibration, and diagnostics. Our products are sourced from top- tier manufacturers and meet international quality and compliance standards. With a strong focus on reliability, technical expertise, and worldwide delivery, Jansen Calibration supports engineers, technicians, and calibration professionals across the globe. We also offer expert consultation to help clients select the right instruments for their specific applications. From environmental monitoring tools to power analyzers, we are committed to precision, performance, and customer satisfaction. Learn more at www.jansencalibration.com

Minimum Order: 1 bags

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Minimum Order: 2 barrels

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Minimum Order: 2 barrels

liquid crystal reactive monomers RM105 82200-53-1 RM105 82200-53-1 Benzoesure, 4-[[6-[(1-oxo-2-propenyl)oxy]hexyl]oxy]-, 4-methoxyphenylester HPLC: 97% MIN. Established in 2007, Qingdao QY Liquid Crystal Co., Ltd is a leading manufacturer specializing in high-quality nematic liquid crystals, primarily used in PDLC smart film and high grade of LC display. With over 18 years of nematic liquid crystals production expertise. Our LCs are widely exported to Europe, the United States, South Korea, and other global markets. The capable of our producing approximately 5000 kilograms per month. We signed the Exclusive Agency Agreement with our South Korean customer from 2011

Minimum Order: 20 square metres

GW non clogging pipeline pump Not clogged impeller (Single flow channel or double flow channel) GW non-clogging pipeline pump adopts unique impeller structure and new mechanical seal, which can effectively transport wastewater with solids and long fibers. The impeller adopts single flow channel or double flow channel which is similar to a bend pipe with the same cross section size. Equipped with a reasonable volute chamber, the pump can convey the sewage or wastewater with solid particles or fiber etc. impurities. The pump has no vibration in operation. The pump can be made of cast iron or stainless steel. It has remarkable energy-saving effect, anti-winding, non-clogging, automatic installation, and automatic control etc. characteristics. It has a unique effect in discharging wastewater with solid particles and long fiber. features 1 - Compact structure, easy to move, simple to install, no need to build pump room, reduce project cost. 2 - It can operate within the full head range without overload of the motor. 3 - The center line of inlet and outlet is on the straight line, which can be installed directly anywhere in the pipeline. 4 - Strong discharge capacity and no blockage. 5 - Reasonable design, small power of supporting motor, remarkable energy-saving effect. 6, wear - resistant mechanical seal. Application: 1 - hospital, hotel, high-rise building sewage discharge. 2 - Discharge of thin mud in municipal engineering and construction site. 3, farm sewage discharge and rural farmland irrigation. 4 - Water supply device for water plant. 5 - Mine exploration and water treatment equipment. 6 - Water supply and drainage for water conservancy projects. 7 - Enterprise wastewater discharge. 8 - Urban sewage treatment plant discharge system. 9 - Sewage and drainage stations in residential areas. 10 - Subway, basement, civil air defense drainage station. service conditions 1 - The medium temperature shall not exceed 80 ° C. 2 - The weight of medium transported is 1 ~ 1.3kg /dm3. 3, The cast iron pump is used to transport wastewater without corrosion 4, when the pump is working, the pump should be well ventilated around. 5 - 1Cr18Ni9Ti stainless steel pump can be used for conveying various corrosive wastewater liquids.

Minimum Order: 1 bags

Cassette oil seals are specialized sealing solutions developed for use in machinery that operates in environments where dust, dirt, water, and other contaminants pose a significant risk. Unlike standard rotary shaft seals, cassette seals integrate multiple sealing lips, a dust barrier, and sometimes a pre-lubricated internal cavity. This structure enhances sealing reliability and extends service life under harsh conditions. This article explores which types of machinery require cassette oil seals, explains why they are selected, and provides practical insights for engineers and maintenance professionals. Machinery That Commonly Uses Cassette Oil Seals 1. Agricultural Equipment Machines such as tractors, combine harvesters, seeders, and sprayers work in open fields where exposure to mud, water, and crop debris is constant. Cassette oil seals are commonly installed in wheel hubs, axles, and gearboxes to protect rotating parts and ensure smooth operation over long working hours. 2. Construction Machinery Excavators, backhoes, loaders, and bulldozers are exposed to gravel, soil, and vibrations during operation. Cassette seals help prevent grit and moisture from damaging internal components, especially in swing motors, wheel hubs, and hydraulic systems. 3. Mining and Quarry Equipment Equipment like drilling rigs, crushers, and haul trucks must withstand heavy- duty usage in abrasive environments. Cassette oil seals in these machines reduce the risk of bearing failure and fluid leakage in gearboxes and drive systems. 4. Heavy-Duty Trucks and Trailers Cassette seals are often used in truck axle systems, wheel ends, and braking assemblies, where they resist the effects of road debris, water, and temperature fluctuations, contributing to extended maintenance intervals. 5. Forestry and Logging Machinery Machines used in logging operations face exposure to wood chips, sap, and rough terrain. Cassette seals help protect gear mechanisms and wheel bearings from contamination, especially in harvesters and skidders. 6. Industrial Machinery In some cases, cement mixers, crushers, and conveyors used in dusty plants also benefit from cassette seals to maintain cleaner lubrication systems and prevent premature wear. Frequently Asked Questions Q1: Why are cassette seals preferred over standard oil seals in heavy equipment? A: Cassette seals offer multi-lip protection and are pre-assembled, reducing installation errors. They also resist contamination better and last longer in rugged environments. Q2: Are cassette seals only used in mobile equipment? A: While they are most common in mobile and off-road machines, cassette seals can also be applied in fixed industrial machinery exposed to high levels of dust or moisture. Q3: Can a standard oil seal be replaced with a cassette seal? A: In some cases, yes—but shaft compatibility, space constraints, and seal dimensions must be carefully evaluated. A cassette seal may offer better performance if properly fitted. Q4: What maintenance benefits do cassette seals offer? A: Their robust design helps reduce unplanned downtime and extends the interval between seal replacements, especially in equipment where frequent maintenance is difficult. Cassette oil seals are widely used in machinery that operates under tough and unpredictable conditions. From agriculture and construction to mining and transportation, these seals provide reliable protection against contaminants and wear. Understanding which machines benefit from cassette seals allows for more effective sealing solutions, helping to ensure long-term equipment reliability and reduced maintenance needs.

Minimum Order: 100

Name: KL-037 Waterproof Pen-type pH Meter Product description : Measuring range 0.00~14.00PH Accuracy

Minimum Order: 10 long tons

Name: KL-03(I) High Accuracy Pen-type pH Meter Product description : Measuring range 0.00~14.00PH Accuracy

Minimum Order: 10 long tons