Mechanical Hardware

In industrial operations, O-rings may look small, but they play a vital role in preventing leakage, maintaining system pressure, and protecting equipment from contamination. For distributors and wholesalers, selecting durable O-rings is not only about technical performance but also about ensuring long-term customer satisfaction and reliable supply. Material Selection Different working conditions require different materials: Nitrile Rubber (NBR): Good oil resistance, suitable for hydraulic systems and general machinery. Fluoroelastomer (FKM): Resistant to heat and chemicals, ideal for metallurgy and chemical equipment. Silicone Rubber (VMQ): Excellent low-temperature performance, suitable for machinery in cold regions. PTFE Composite O-Rings: Low friction and strong chemical resistance, often used in precision equipment. Distributors must evaluate operating conditions rather than relying solely on catalog numbers. Design and Size Accuracy Durability depends not only on material but also on precise dimensions. Excessive tightness accelerates wear, while looseness causes leakage. For high- pressure systems, compression set and extrusion risks must be considered. Wholesalers should ensure that factories have advanced mold technology and strict dimensional control. Installation and Maintenance Inspect grooves for burrs before installation; Use lubricants compatible with the seal material; Apply specialized tools to avoid damage; Regularly check for wear and replace when necessary. Attention to these details extends service life and reduces customer complaints. Distributor-Oriented Q&A Q: Why do O-rings of the same size vary in price? A: Differences stem from material formulation, production process, and quality control. Q: How can batch consistency be ensured? A: Work with suppliers offering traceability and establish incoming inspection procedures. Q: Can non-standard customization be provided? A: A good factory should offer customization, from material selection to structural design. NQKSF Services and Enterprise Highlights NQKSF has established a strong reputation in the sealing industry by offering: Standard parts with fast delivery: Covering O-rings, oil seals, and thousands of specifications with sufficient stock to meet urgent needs. Customized full-service solutions: From material selection and structural design to production and testing, tailored to specific working conditions. Technical empowerment: With over 30 years of industry experience, helping optimize sealing performance, reduce maintenance costs, and improve reliability. Enterprise highlights include: a modern manufacturing plant, leadership in the sealing industry, complete models in stock, exports to over 80 countries, cooperation with global brands, recognition as a provincial innovation center, specialized enterprise, high-tech enterprise, and a leading company in industrial clusters. Choosing durable O-rings is not just about materials—it reflects the strength of the supply chain and service capabilities. Distributors and wholesalers who partner with strong brands like NQKSF will gain customer trust and achieve sustainable success in competitive markets.

Minimum Order: 1000

ZJQ High-chrome alloy submersible slag slurry ZJQ submersible slurry pump is the hydraulic machinery with coaxial motor and water pump and submerged in the medium for work. The pump has advanced structure, wide flow channel, strong discharge capacity, excellent material and strong corrosion resistance. ZJQ submersible slag slurry pump is suitable for conveying the liquid with sandstone, coal cinder, tailings and other solid particles. It is mainly used for cleaning and conveying of the slurry liquid of metallurgy, mine, iron and steel works, thermal power plant and other enterprises and is the ideal substitute pump of the traditional slurry pump. ZJQ Submersible slag slurry pump is designed and manufactured by absorbing the foreign advanced technology. The wear-resistant material (high-chrome alloy) with high technology is adopted, so as to greatly improve pump life and reduce the repair frequency. A set of mixing impeller is added at the bottom at the water pump except for the primary impeller, which can stir the sediment sludge to eddy flow, so that high concentration convey can be realized when water pump has no auxiliary device. The unique sealing device can effectively balance the pressure inside and outside the oil chamber. So, the pressure at both ends of the mechanical seal is maintained balanced. It guarantees operation reliability of mechanical seal to the maximum limit and greatly extends the service life. If necessary, overheat protection, inlet water detection and protection and other protection measures shall be adopted for the motor, which can be in long-term safe operation at harsh conditions. Meanwhile anti-condensation, bearing temperature measurement and other preventive measures can also be added according to user’s requirements, so as to satisfy use in different occasions. Compared with the common slurry pump, ZJQ submersible slag slurry has the following features: 1. It is not restricted by suction lift; the slag suction efficiency is high and dredging is more thorough. 2. It is not required to equip the auxiliary vacuum pump and the investment is more economic. 3. It is not required to equip the auxiliary mixing device and operation is simpler. 4. It is not required to build the complicated ground protection and fixing device when the motor is inserted under water, which is simple and convenient. 5. The mixing /stirring impeller directly contacts the deposition surface, and the depth is controlled through the submerged depth. Therefore, concentration control more fee. 6. The pump is directly submerged into the water for work. There is no noise or vibration and site is more tidy. 1. The power supply is 50Hz, 380V three-phase AC power supply. 2. The maximum temperature of the medium shall not be higher than 40℃, and the medium does not contain flammable and explosive gases. 3. The maximum weight concentration of solid particles in the medium: ash slag is 45%, slag is 60%. 4. The maximum submerged depth shall not be more than 20m, and the minimum submersible depth shall not be less than 1m. 5. It is better for the unit to work vertically in the medium, and the operation mode is continuous operation. Range of performance parameters: Flow: 30 to 1450m3/h head: 15 to 95m, the maximum particle size :92mm.

Minimum Order: 1 bags

Multistage Centrifugal Horizontal Water /oil /Chemical Pump Horizontal single-suction multistage segmented centrifugal pump. High efficiency and energy saving, wide performance range, safe and stable operation, low noise, long service life, convenient installation, and maintenance. It can transport clean water without solid particles (abrasive), without suspended solids or other liquids with physical and chemical properties similar to that of clean water. It can also be used to transport hot water, oil, corrosive or abrasive fluid media by changing the material of the pump (the material of the flow passage parts of the pump), sealing form and adding cooling system. Type D: It is used to transport clean water without solid particles and with temperature lower than 80 ℃ or liquid with physical and chemical properties similar to clean water. Suitable for mine, factory and urban water supply and drainage engineering. DF type is used to transport corrosive liquid without solid particles and a temperature of - 20 to 105 degrees. The allowable pressure at the pump inlet is less than 0.6MPa. Users can reasonably select the pump material, sealing form, pump structure and determine the motor capacity according to the name, concentration, specific gravity, operating temperature and pump inlet pressure of the pumped medium. DY pump is used to transport oil and petroleum products without solid particles, with temperature of - 20 to 105 degrees and viscosity of less than 120 centipoise. MD type pump is used to transport neutral mine water and other similar sewage with particle content of no more than 1.5%, particle size of no more than 0.5mm and temperature of - 20 to 80 degree Celsius. DG is used for conveying clean water without solid particles and with temperature of - 20 to 150 degree Celsius. suitable for medium and low-pressure boiler feed water. Material of overflow parts D type: flow passage parts are for cast iron, shaft is 45 # steel DG type: the flow passage parts are divided into cast iron and stainless steel according to the use requirements, and the material is determined according to the temperature and corrosivity of the conveyed medium DY type: the flow passage parts are divided into cast iron, cast steel and stainless steel according to the use requirements, and the material is determined according to the temperature of the transported medium. MD type: flow passage parts are made of wear-resistant cast iron or nodular cast iron (ductile iron) DG type: the flow passage parts are divided into cast iron, cast steel and stainless steel according to the use requirements, and the material is determined according to the temperature of the transmission medium

Minimum Order: 1 bags

Heavy machinery—excavators, loaders, mining trucks, and industrial presses —operates under conditions far harsher than passenger vehicles. Oil seals in these machines are not simply accessories; they are frontline components that keep hydraulic systems, gearboxes, and engines running without leakage. Selecting the right material is therefore a matter of both technical performance and business reliability. The Demands of Heavy Machinery Unlike light equipment, heavy machines seal face: High pressure and load cycles in hydraulic cylinders. Extreme temperatures from engines and gearboxes. Dust, mud, and abrasive particles in construction and mining sites. Continuous operation with minimal downtime allowed. These factors mean that ordinary sealing materials often fail prematurely. Distributors and wholesalers serving this market must understand which materials can withstand such environments. Commonly Applied Materials Nitrile Rubber (NBR) NBR is widely used for general oil resistance. In heavy machinery, it works in moderate temperature ranges and standard hydraulic oils. However, it is less suitable for prolonged high‑temperature exposure. Hydrogenated Nitrile Rubber (HNBR) HNBR improves upon NBR by offering better heat and chemical resistance. It is often chosen for hydraulic systems that experience fluctuating temperatures and higher loads. Fluoroelastomer (FKM) FKM is valued for its ability to resist high temperatures and aggressive fluids. In heavy machinery gearboxes and engines, it provides stability where mineral oils and additives might degrade other rubbers. Polyurethane (PU) PU seals are known for elasticity and abrasion resistance. They are particularly effective in hydraulic cylinders that undergo frequent reciprocating motion. Many distributors note that PU seals reduce warranty claims in construction equipment. Polytetrafluoroethylene (PTFE) PTFE offers very low friction and excellent chemical resistance. It is used in high‑speed shafts and specialized machinery. Installation precision is critical, but when applied correctly, PTFE seals extend service intervals significantly. Market Outlook As infrastructure projects expand globally, demand for heavy machinery grows. This directly increases the need for durable oil seals. Distributors who understand material selection and can advise clients on balancing cost with performance will strengthen their market position. Oil seal materials for heavy machinery must be chosen with care. NBR covers standard needs, HNBR handles higher loads, FKM withstands heat and chemicals, PU excels in abrasion resistance, and PTFE serves specialized high‑speed applications. For distributors and wholesalers, success lies in offering the right mix of materials, maintaining stock for urgent orders, and guiding customers toward reliable solutions. In a competitive market, expertise in seal materials is not just technical knowledge—it is a business advantage.

Minimum Order: 1000

NCB internal gear rotary pump NCB internal meshing gear pump uses the principle of gear internal meshing. Internal and external gear joint circle close to one side, the other side is covered by the pump "crescent plate" separated. The internal driving gear on the main shaft drives the internal and external gears to rotate in the same direction. At the inlet, the gears separate from each other to form a negative pressure and suck in the liquid. Because of this unique structure, it is especially suitable for conveying medium with high viscosity. The viscosity range is: 0.2-1000000cp; NCB Internal gear pump can be reverse transmission, as long as the motor can be replaced; The pump body of internal meshing gear pump can be turned, the inlet and outlet position can be 90 angle to easily choose the inlet and outlet. There is the inlet and outlet interface of head preservation or cooling device In the pump body, end cover, bearing housing of Internal meshing gear pump. NCB Internal gear pump has the features: no trapped oil phenomenon, smooth delivery, high efficiency, low noise, the advantages of life plant. NCB internal gear pump is suitable for conveying the Newton liquid or non-newton liquid in petroleum, chemical, coating, dye, food, oil, medicine and other industries. The conveyed liquids can be from light, volatile liquid, until heavy, viscous, and even semi-solid liquid. NCB internal gear pump material has cast iron, cast steel, stainless steel and so on NCB internal meshing gear pumps are suitable for conveying a wide range of light, volatile liquids, up to heavy, viscous liquids, and even semi-solid liquids.NCB internal gear pump is widely used in petroleum, chemical, oil, coating and other industries. NCB internal gear pump suitable for transport of saponin, silicone oil, rosin, coating and other high viscosity medium, the application is very wide.

Minimum Order: 1 bags

In today’s increasingly competitive global market, oil seals are crucial mechanical sealing products whose quality directly affects the operational efficiency and lifespan of equipment. As a result, a qualified oil seal factory must meet various requirements in order to stand out. Below are the key conditions that a good oil seal factory must meet. 1. Strong Technical Research and Development Capabilities The first requirement for a top-tier oil seal factory is a robust technical R&D team and solid technical reserves. Oil seals come in many types and materials, such as fluororubber, NBR, PTFE, etc. Each material has different performance requirements depending on the application. Therefore, the R&D team must have extensive industry experience and innovation capabilities to continually develop new products and enhance the performance of existing ones. R&D staff should not only be familiar with the properties of various sealing materials but also have a deep understanding of sealing structures, processes, installation, and maintenance. Providing tailored solutions for clients is essential to maintaining a competitive edge in the market. 2. Rigorous Quality Control System The quality of oil seal products is directly linked to the safety and stability of equipment. Thus, a good oil seal factory must have a strict quality control system in place. Every step, from raw material procurement to production processes to final product testing, must undergo precise quality checks. The quality control system should cover various aspects, including material testing, dimensional accuracy, pressure resistance tests, temperature resistance tests, and aging resistance tests, to ensure that the product remains stable under extreme operating conditions. Such strict standards are typically aligned with international certifications such as ISO 9001 to meet global market demands. 3. Advanced Production Equipment and Processes Oil seal production requires precision equipment and efficient manufacturing processes. Modern production lines ensure high efficiency while minimizing human error, ensuring both the quality and consistency of products. A good oil seal factory should invest in advanced equipment like CNC machines, injection molding machines, and vulcanization equipment, and adopt automated control systems. This not only boosts production efficiency but also ensures product accuracy. Moreover, the factory should possess flexible production capabilities to meet the custom specifications and performance requirements of different clients. 4. Comprehensive After-Sales Service System After-sales service is also critical for oil seal factories. Given that oil seals are consumable parts, they will inevitably experience wear or damage during use. Therefore, offering excellent after-sales service is key to attracting clients. After-sales service should encompass more than just repairs and replacements; it should also include technical support and usage training. Oil seal factories should provide professional consulting services and regular product inspections to help clients minimize equipment failures and improve operational efficiency. 5. Strong Supply Chain Management Supply chain management plays a crucial role in oil seal production. A good oil seal factory needs to establish long-term stable partnerships with high- quality raw material suppliers to ensure both the quality and timely supply of materials. At the same time, the factory should have flexible inventory management capabilities to quickly respond to market demand changes. For wholesalers and distributors, timely delivery and a stable supply chain are essential to maintaining smooth operations. 6. Strong Cooperation Capability Oil seal factories should also have a strong ability to cooperate with clients. Distributors and wholesalers often have more diverse requirements, with price and delivery time being key considerations. A good oil seal factory should establish a flexible pricing mechanism to offer suitable products and prices to clients of all sizes. Furthermore, the factory should have a strong capability for customization, allowing them to produce tailored oil seals to meet the unique needs of clients. By offering continuous innovation and services, the factory can establish long-term, stable partnerships with clients in the market and increase brand influence. 7. Compliance with Environmental Protection and Social Responsibility As global environmental regulations become stricter, oil seal factories must pay attention to their environmental responsibilities. A high-quality factory should not only comply with various environmental standards but also actively take measures to reduce pollution during the production process. Additionally, the factory should focus on employee welfare and production safety to create a healthy, safe, and harmonious working environment. A good oil seal factory is more than just about producing high-quality products. It must have advantages in technical research, quality control, production processes, after-sales service, and other areas. For clients, choosing a factory with comprehensive strength will lead to a long-term and stable partnership.

Minimum Order: 1000

HD electric drum pump can be directly inserted into a 200 liter standard barrel to extract liquids, and can transport acids, alkalis, salts, oil products, beverages, and various low viscosity particle free liquids. The pump body and motor adopt a threaded flange mounting plate, which is convenient for disassembly and assembly. Electric motor ( Single phase standard motor, explosion-proof motor, high speed motor)or pneumatic drive, multiple pump materials: polypropylene, PVDF，PTFE， Stainless steel and aluminum alloy materials are suitable for conveying the vast majority of low to medium viscosity liquids. The pump is Widely used in chemical, petrochemical, fine chemical, dye chemical, environmental protection, water treatment, medicine, food etc.

Minimum Order: 1 bags

Fiberglass FRP pipeline vertical pump: SL phenolic FRP pipeline centrifugal vertical pump: SL vertical fiberglass centrifugal pump is single-stage single-suction centrifugal pipeline pump. It is a new type of energy saving pump. The flow parts are made of modified phenolic glass fiber reinforced plastic FRP by high temperature and high- pressure process. Advantages: The pump has the advantages of super corrosion resistance, high temperature resistance, light weight, high strength without deformation. Simple structure, steady operation, reliable performance, high efficiency and low consumption, easy maintenance. It is the durable and corrosion resistance pump. Pumped liquids: SL vertical fiberglass centrifugal pipeline pump can be used to transport concentrated hydrochloric acid and dilute sulfuric acid, non-oxidizing strong acid, organic acid, inorganic salts etc. Application SL Vertical fiberglass reinforced plastic centrifugal pump is widely used in chemical, petrochemical, pharmaceutical, pesticide, daily chemical, chemical fiber, water treatment, machinery, metallurgy, environmental protection and other industries in the field of corrosion resistance. Model meaning: SL40-20 SL: Vertical fiberglass centrifugal pipeline pump 40: pump inlet and outlet (mm) 20: pump head Performance ranges: Flow rate (Q): 3.2m3/h-100m3/h Head (H):12.5m-32m Motor power:0.75KW-11KW Caliber:25mm-100mm

Minimum Order: 1 bags

The power steering rack seal plays an essential role in the hydraulic steering system of a vehicle. Its primary function is to prevent the leakage of hydraulic fluid, ensuring that the steering system maintains proper pressure and fluid integrity. Over time, due to wear and tear or external factors, the oil seal may degrade, leading to fluid leakage and system malfunctions. Replacing the oil seal at the right time and in the correct manner is crucial. This article will highlight the important considerations when replacing the power steering rack seal, providing a clear guide to avoid common mistakes and ensuring a smooth replacement process. 1. Common Causes of Oil Seal Damage Before replacing the oil seal, it’s essential to understand the common causes of damage. Oil seal failure can result from the following factors: Aging of the Seal Material: Over time, the seal material loses its elasticity due to friction and temperature changes, leading to poor sealing and fluid leakage. Excessive Operating Temperature: If the hydraulic system operates at temperatures higher than the oil seal’s tolerance, the seal material may deform, harden, and lose its sealing ability. External Contamination: Impurities or low-quality hydraulic fluid can accelerate wear and corrosion of the seal, resulting in seal failure. Improper Installation: Incorrect installation, such as applying excessive pressure or improper angle, can damage the oil seal and compromise its sealing performance. 2. Steps for Replacing the Oil Seal Replacing the power steering rack seal requires precision and attention to detail. Below are the standard steps for a successful replacement: Preparation Ensure Safety: Before beginning, make sure the vehicle is powered off, the battery is disconnected, and the hydraulic fluid is drained. Clean the Area: Use a clean cloth to wipe down the installation area, ensuring no debris or contaminants enter the hydraulic system during the replacement process. Remove the steering rack Use the appropriate tools to carefully remove the steering rack. Record the position and order of disassembly for easier reinstallation. Detach the hydraulic lines with caution, ensuring not to damage any other system components. Remove the Old Oil Seal Use specialized tools to gently remove the old oil seal. Avoid applying excessive force, as this may damage the steering rack shaft or the seal groove. Inspect the groove for any scratches or corrosion. If damage is found, repair the groove before installing the new oil seal. Install the New Oil Seal Apply a small amount of hydraulic fluid to the new seal and shaft to reduce friction during installation. Install the new seal using the correct tools, ensuring the sealing lip makes firm contact with the shaft surface and there are no gaps. Test the System After installation, refill the hydraulic system and start the vehicle. Check for any signs of fluid leakage and ensure that the steering system operates smoothly. 3. Frequently Asked Questions How do I know when the oil seal needs replacing? Common signs include fluid leakage, heavy or uneven steering, or unusual noises. These indicate that the oil seal may be damaged and needs replacement. What is the typical replacement cycle for oil seals? Oil seals typically need replacement every 3-5 years, depending on the quality of the hydraulic fluid, operating conditions, and temperature exposure. What should I pay attention to when replacing the oil seal? Ensure the replacement oil seal matches the original in size and material. Clean the seal groove before installation to avoid contamination and ensure a proper seal. Replacing the power steering rack seal is an essential task that directly affects the performance and longevity of the hydraulic steering system. By following the proper steps for removal and installation, selecting the right oil seal, and regularly inspecting the system, you can avoid potential issues, ensure smooth steering performance, and prolong the lifespan of your vehicle.

Minimum Order: 1000

LC multistage long shaft submersible well pump LC type vertical long shaft multistage submersible well pump is used to Convey clean water and sewage containing certain solid particles (such as iron filings, sand particles, pulverized coal, etc.), corrosive industrial wastewater and seawater etc. The temperature of pumped liquid shall not exceed 80℃.It is widely used in primary water treatment plant, sewage treatment plant, metallurgical steel industry (especially the iron sheet transported by the whirlpool), power plant, mine, municipal engineering and farmland water irrigation and drainage project. Model meaning: 200LC-23A×2-L H 200 -- the diameter of the water pump outlet is 200mm; LC - vertical long shaft pump 23 -- when the impeller is not cut, the single-stage design point head of the pump is 23m (the total head of the pump = single-stage head × the impeller stage A -- impeller is cut for the first. 2 -- the impeller stage is 2 L -- Submersible depth (m); H - pump with sleeve tube Performance range: Q: 85-5600m3/h H:10-100m

Minimum Order: 1 bags

G pulley driving single screw pump can be used to transport neutral or corrosive liquids, clean or abrasive liquids, liquids containing gases or prone to bubbles, high viscosity or low viscosity liquids and liquids containing fibers and solids such as wastewater, sewage etc. G single screw pump has the very wide application. Food industry: used for wineries to transport wine, waste residue and ingredients in the process of wine production. Textile industry: used to transport synthetic fiber, viscose, dye, ink, nylon powder liquid. Paper industry: used for the transportation of black liquor of pulp. Oil industry: used in a variety of oil, oil products for the ground gathering and transportation pump. Chemical industry: used to transport all kinds of suspension, emulsion, acid, alkali, salt liquid. Shipbuilding: used for transporting residual oil, cleaning tank and sewage, sea water, etc. Construction industry: conveying mortar, plaster. Nuclear industry: radioactive liquid conveying belt particles Power plant: used for the transportation of coal water slurry.

In hydraulic systems, oil seals play a crucial role in maintaining pressure and preventing fluid leakage. Although small in size, they are vital for the overall reliability of the equipment. Different types of hydraulic oil seals vary in structure, material, and application, and proper selection ensures long‑term stability. Main Types of Hydraulic Oil Seals Fabric‑reinforced oil seals These seals combine rubber with fabric reinforcement, enhancing pressure resistance and wear performance, suitable for heavy‑duty hydraulic equipment. Polyurethane seals Known for elasticity and wear resistance, polyurethane seals are widely used in reciprocating hydraulic cylinders, especially in high‑frequency applications. R35/R37 seals Compact in structure, these seals effectively prevent leakage and are commonly applied in hydraulic systems. O‑rings The most basic sealing element, O‑rings are often used for static sealing but can serve as auxiliary seals in hydraulic systems. Material Considerations The performance of hydraulic oil seals depends largely on the material: NBR (Nitrile Rubber): Good oil resistance, suitable for standard conditions. HNBR (Hydrogenated Nitrile Rubber): Better heat resistance, ideal for systems with temperature fluctuations. FKM (Fluoroelastomer): High resistance to heat and chemicals, suitable for demanding environments. PU (Polyurethane): Excellent elasticity and wear resistance, widely used in high‑frequency reciprocating cylinders. PTFE (Polytetrafluoroethylene): Very low friction, suitable for high‑speed operations, but requires precise installation. Installation and Maintenance Notes Shafts and cylinder bores must be smooth and free of scratches. Specialized tools should be used to avoid damaging the seal during assembly. Lubrication should be moderate—too much or too little can compromise sealing performance. Environmental factors such as dust, humidity, and temperature fluctuations must be considered. Distributor FAQs Are hydraulic oil seals universal? No. Standard models cover many needs, but unique environments often require customized solutions. How long do hydraulic oil seals last? Service life depends on material, operating conditions, and installation quality. Proper selection and maintenance extend lifespan significantly. Which seals are suitable for high‑pressure environments? Fabric‑reinforced and polyurethane seals are recommended, provided installation accuracy is ensured. Selecting hydraulic oil seals is not a simple catalog exercise. It requires balancing material properties, installation practices, and operating conditions. Distributors and wholesalers who understand these details can deliver real value to customers. As hydraulic technology continues to evolve, seal types and materials will also improve, making high‑performance sealing solutions even more critical for reliable system operation.

Minimum Order: 1000

YB rotary slide vane pump is an efficient and reliable fluid conveying equipment, especially suitable for low-speed and high flow transmission scenarios, and performs well in harsh working environments such as high pressure difference and suction stroke 1 - It adopts ductile iron and self-lubricating vane structure, which can transmit viscous and volatile liquids, and has lower power consumption compared to similar pumps. 2 - The pump adopts a revolutionary cam design that can effectively eliminate cavitation, and significantly extend its service life through the use of new cam, blade materials, and heavy-duty bearings 3 - Its single mechanical seal design makes maintenance and replacement simple and convenient, while the large-sized non-metallic push rod supports high-speed rotation of the pump In addition to the above characteristics, YB series slide pumps are widely used in various occasions such as conveying corrosive chemical media, liquefied petroleum gas, petroleum products, etc Some models are also equipped with safety relief valves, which can ensure the safety of the pump and system in case of sudden shutdown of the outlet system, while preventing motor overload. Pump can be directed coupled to the electric motor or through V-belt to motor. YB rotary vane pump is a positive displacement pump, whose core structure includes an eccentric rotor, stator, vane, and flow distribution component. Liquid transportation is achieved through the sealing cooperation between the vane and stator. core structure Rotor: Eccentrically installed inside the pump body, it drives the sliding vane to move when rotating. Stator: The inner surface is a specific curved surface (such as an ellipse), forming a sealed cavity with the rotor. Sliding vane: embedded in the rotor slot, tightly attached to the inner wall of the stator under centrifugal force or mechanical thrust, and slides with the rotation of the rotor. working principle Oil suction stage: The rotation of the rotor increases the volume of the sealing chamber, creating negative pressure to suck in liquid. Oil pressure stage: The volume of the sealing chamber decreases, and the liquid is squeezed out. Distribution structure: Separate the oil suction area from the oil pressure area through a distribution plate or sealing block to prevent backflow. Material and Performance Material: Ductile iron rotor with self-lubricating blades, suitable for conveying viscous or volatile liquids. Features: Lower power and better sealing compared to pumps of the same type

Minimum Order: 1 bags

Engine oil seals are critical components in the engine sealing system, ensuring smooth operation by preventing fluid leakage and contamination of engine parts. Selecting the right engine oil seal is essential for extending the engine's service life and optimizing its performance. Here are the key factors to consider when choosing an engine oil seal. 1. Material Selection The material of the oil seal directly affects its sealing performance and longevity. Common materials include: Fluororubber (FKM): Known for high temperature and chemical resistance, suitable for high-temperature environments like turbochargers and intake systems. Nitrile Rubber (NBR): Offers good oil resistance, ideal for standard engine oil seals in moderate temperature conditions. Hydrogenated Nitrile Rubber (HNBR): Highly resistant to high temperatures, oils, and acids, used in demanding environments like water pump seals. PTFE: Suitable for extreme conditions, such as high temperatures and aggressive chemicals. Choosing the right material based on the operating environment is crucial to enhancing the seal's durability and efficiency. 2. Structural Design The design of the oil seal, including its inner and outer diameter, thickness, and spring configuration, plays a vital role in ensuring proper sealing. Correct sizing ensures a tight fit with the shaft, reducing leakage and friction. The spring mechanism helps maintain sealing pressure, especially in high-load conditions. 3. Application Scenarios Different engine parts require different oil seal types. For instance: Crankshaft Seals: Positioned at both ends of the engine, these prevent oil leakage between the crankshaft and engine casing. They require high- temperature and oil resistance. Camshaft Seals: Used to prevent oil leakage between the camshaft and engine casing, they require excellent wear resistance and sealing properties. Water Pump Seals: Designed to prevent coolant leakage, they must be highly resistant to chemical corrosion. Choosing the right oil seal depends on the specific application. 4. Installation Considerations Proper installation is key to achieving the best sealing performance. Important tips include: Avoid Over-Compression: Ensure the seal surface remains smooth and free from deformation during installation. Use Specialized Tools: Using proper tools minimizes the risk of damage to the oil seal. Clean Installation Surfaces: Ensure the mating surfaces are free of contaminants. Check Shaft Fit: The gap between the shaft and the seal should be within the specified range. 5. Durability and Stability Engine oil seals must be durable. Given the high temperatures, pressure, and vibrations in engines, the seals must withstand these harsh conditions without failing. They must also resist engine oil, coolant, and other chemicals that could degrade them over time. 6. Key Considerations for Dealers and Wholesalers For dealers and wholesalers, the following factors are essential: Adequate Stock: Having a wide range of oil seal models and sizes ensures that customer demands are met. Quality Assurance: High-quality seals ensure customer satisfaction and minimize after-sales issues. Timely Delivery: Quick and reliable delivery is crucial, especially when customers need fast replacements. Customization: Offering customized oil seals for specific applications can attract customers with unique needs. When selecting engine oil seals, it’s essential to focus on material, design, application, installation, durability, and stability. Dealers and wholesalers should emphasize product quality, stock variety, and fast delivery to stay competitive in the market.

Minimum Order: 1000