Tools & Hardware

Automobile piston rings are essential components designed to ensure optimal engine performance, efficiency, and durability. Installed around the piston, these rings create a tight seal between the piston and the cylinder wall, preventing gas leakage, regulating oil consumption, and maintaining proper compression. Manufactured using high-strength materials such as cast iron or alloy steel, piston rings are engineered to withstand high temperatures, friction, and constant motion inside modern internal combustion engines. PRODUCT CODE CYLINDER DIAMETER(MM) RING HEIGHT (MM) 1ST 2ND OIL 1 06241 62.00 1.50 1.50 2.80 2 06543 65.50 1.20 1.20 2.50 3 07143 71.00 1.00 1.00 1.50 4 07246 72.00 1.20 1.20 2.00 5 07448 74.80 1.50 1.50 3.00 6 08146 81.00 1.20 1.20 2.80 7 08341 83.50 1.20 1.50 2.50 8 08746 87.50 1.20 1.20 2.00 9 08842 88.00 1.20 1.50 2.50

Our Motorcycle Piston Ring is designed to deliver exceptional sealing performance, improved combustion efficiency, and long-lasting durability for a wide range of motorcycle engines. Manufactured with high-grade alloy materials and advanced machining technology, these piston rings provide excellent heat resistance, reduced friction, and superior wear protection—even under high- speed and high-temperature conditions. NO. PRODUCT CODE CYLINDER DIAMETER(MM) RING HEIGHT (MM) 1ST 2ND OIL 1 03504 35.00 0.80 0.80 2.00 2 03506 35.70 1.00 1.00 1.90 3 03508 35.80 1.00 1.00 2.00 4 03601 36.00 1.00 1.20 1.50 5 03704 37.00 0.80 0.80 1.50 6 03702 37.80 0.80 0.80 2.00 7 03703 37.80 0.80 0.80 1.50 8 03803 38.00 0.80 0.80 1.50 9 03801 38.40 0.80 0.80 1.50

PRODUCT CODE CYLINDER DIAMETER(MM) RING HEIGHT (MM) 1ST 2ND OIL 1 03501 35.70 1.00 1.00 1.90 2 03503 35.00 1.00 1.00 2.00 3 03507 35.00 1.00 1.00 2.00 4 03802 38.10 1.00 1.00 2.00 5 03906 39.00 1.00 1.00 2.00 6 04106 41.00 0.80 0.80 2.00 7 04109 41.80 0.80 1.00 1.50 8 04601 46.00 1.50 1.50 2.50 9 04809 48.60 1.00 1.00 2.00 Dongya purchases a series of steel ring materials from well-known international companies, which can meet the design requirements of various structures and surface treatment piston ring. At the same time, in accordance with the ISO- 6621-3:2000 standard, according to customer needs and engine performance, we independently develop various cast iron ring materials.

QDLF Series light vertical multistage stainless steel pump Working conditions: Cool and hot and clean liquids and non flammable and explosive liquids without solid or fiber Liquid temperature: -15℃ to +120℃ Environment: Maximum +40℃ Minimum suction pressure: NPSH curve +0.5m The pump is suitable for cool or hot and clean water and soft water circulation and booster. It also can be used for slight alkali and and mine water and water in swimming pool and chlorid water. Transport the medium like pharmacy, food and beverage. Boiler feeding Pressure boosting of living water Industrial circulation system and processing system Water treatment of environment protection. Other applications.

Minimum Order: 1 bags

Liquid ring vacuum pump with flange or threaded end for suction and exhaust 2BV series liquid ring vacuum pump is suitable for suction gas and vapour ,and the suction pressure can reach 33mbar (97% vacuum degree ).When the liquid ring vacuum pump works under the condition that the suction pressure is near the limited vacuum (saturated pressure of the operating liquid )for a long time ,it should couple with the cavitation protection pipe in order to protect the pump .When it is used as a compressor ,the maximum pressure is 0.26mpa.As a new generation of energy-saving pump,2BV series liquid ring vacuum pump will replace the SK and 2SK series liquid ring vacuum pumps and W,WY,WL series reciprocating vacuum pumps completely with their superior performance and advantages . 2BV6 series liquid ring vacuum pumps and compressors are mainly used for pumping the explosive gas or working in the flammable and explosive environment. The technical parameter of each type is the same as the corresponding type of the 2BV2and 2BV5 series pumps. Advantages: 1. The direct-coupled design is easy installation, and it can save space. 2. The pump has the cavitation protection port opens (or connects with the separator) in the case of ensure maximum suction effect to eliminate the noise of cavitation and protect the pump 3. 2BV whole series are all use the bronze impeller with high strength and raise its corrosion resistance and durability .If the liquid flows parts adopt stainless steel ,the pump can work in the more hard condition . Application: Pulp & paper industry: black liquid evaporation, vacuum dehydrator, degassing system of raw materials and white water, suction tank, couch roll, absorption-shift roll and transmission roll, Anti-wind box. Chemical industry: methane gas recovery, petroleum recycles, gas collection, exhaust compression, vapor collection, filtration and decertation, polyester Production, PVC Production. Power plant: condenser exhausting, water box priming, flue gas desulfurization, fly ash conveying, geothermal gas removal, Vacuum Pressure impregnation for transformers. Sugar industry: Sewage filtering, CO2 production etc

Minimum Order: 1 bags

Common Rail Fuel Injector Nozzle 093400-8160 #CR injector 095000-5890# #CR injector 095000-6070# #CR injector 095000-6240# #CR injector 095000-6250# 10SF NICOLE Wha/tsa/pp:+86133/8690/1375 nicole(at , ) china-lutong (dot) net CHINA LUTONG adhere to the depth of the development of foreign markets and expand the domestic market with our combination of marketing strategies, to carry out E-commerce, after-sales service, and constantly strengthen our marketing to build high-quality diesel injection system (components) manufacturers and providers.

Minimum Order: 1 bags

Generally speaking, it is not necessary to install a bottom valve because corrosion-resistant pumps usually have their own check valves at the inlet. After the corrosion-resistant self-priming pump is shut down, the liquid in the pump chamber cannot flow back to the original pool and is stored in the pump chamber. Therefore, there is no need to add liquid during the second use. However, it does not mean that the corrosion-resistant self-priming pump cannot be equipped with a bottom valve. Installing a bottom valve will improve the effect, because if the one-way valve is sometimes damaged, the bottom valve will serve as a guarantee and will not idle after installation. If a bottom valve is installed, the effect will be better, because if the one-way valve is sometimes damaged, the bottom valve serves as a guarantee and will not idle. After installing the bottom valve, it will also effectively ensure the effective suction range of the pump. Another special case, but if the difference in suction height is too large, or the diameter of the suction pipe is too large, and the volume exceeds the storage capacity of the corrosion-resistant self-priming pump chamber, it cannot work normally. At this point, a bottom valve must be installed to ensure safe and fast self- priming. Therefore, the self-priming pump does not require the installation of a bottom valve, but it does not mean that the bottom valve cannot be installed. After the installation of the bottom valve, the suction range of the pump will be more guaranteed, especially for some small corrosion-resistant self-priming pumps. Due to the fact that small corrosion-resistant self-priming pumps generally do not have one-way valves and achieve self-priming effect through the vacuum generated by the instantaneous pump body, the suction effect of the pump will be better after the bottom valve is installed.

Minimum Order: 1 bags

Oil seals are often underestimated components in mechanical systems, yet they play a decisive role in ensuring reliability and service life. In industries such as chemical processing, energy, metallurgy, and even household appliances, the choice of oil seal directly affects performance. TG4 oil seals have gained popularity in recent years due to their durability, chemical resistance, and ease of installation. However, selecting the right TG4 oil seal for a specific machine is not a simple purchase—it requires a holistic evaluation of operating conditions, material properties, installation practices, and supply chain considerations. 1. Application-Oriented Selection TG4 oil seals are widely used in pumps, compressors, gearboxes, hydraulic systems, and electric motors. Each application imposes different requirements: Chemical pumps: Exposure to corrosive media or particles demands seals with strong chemical and wear resistance. Gearboxes: High-speed rotation requires seals that can withstand elevated temperatures and prevent leakage. Household motors: Noise reduction and long service life are priorities, requiring seals that balance flexibility and durability. Distributors often start by analyzing the customer’s industry and operating environment before recommending a TG4 model. 2. Material Considerations The performance of TG4 oil seals depends largely on the material. Common options include FKM (fluoroelastomer), NBR (nitrile rubber): NBR: Cost-effective, suitable for standard oil environments at moderate temperatures. FKM: Resistant to high temperatures and a wide range of chemicals, ideal for demanding conditions. Wholesalers typically balance their inventory by stocking NBR for general demand while keeping FKM for specialized applications. 3. Installation and Usage Guidelines Even the best oil seal can fail if installed improperly. Key points include: Ensure the shaft surface is smooth and free of scratches before installation. Use proper tools to press the seal in place, avoiding hammering or distortion. Select lubricants compatible with the seal material to prevent chemical degradation. Monitor the initial running phase for leakage or unusual noise. These practices are often emphasized during after-sales support to reduce failure rates. 4. FAQ In distributor and wholesaler discussions, several recurring questions arise: Q: Can TG4 seals replace traditional models? A: Generally yes, but dimensions and material compatibility must be verified to avoid leakage. Q: How should inventory be structured? A: Maintain NBR as the baseline stock, with FKM as supplementary options for specialized needs. Q: How to minimize customer complaints? A: Provide installation training, material selection guidance, and maintain proactive communication with clients. 5. Market and Supply Chain Strategy For distributors, TG4 oil seals are not only technical products but also part of a business strategy. Inventory planning, supplier partnerships, and after-sales service all influence customer loyalty. Wholesalers focus on price stability and delivery schedules, while end-users prioritize reliability and technical support. Balancing these factors is essential for building long-term competitiveness in the TG4 oil seal market. Selecting the right TG4 oil seal for machinery requires a multi-dimensional approach—considering application, material, installation, and supply chain. Distributors and wholesalers who position themselves not just as product providers but as solution partners will be better equipped to earn trust and sustain long-term business relationships.

Minimum Order: 1000

Ductile Iron Surface Box is manufactured by Midas and complies with EN124 standards, covering A15, B125, C250, D400, E600 and F900 grades, and is widely used in municipal, urban and public service fields. The product is available in a variety of shapes, including round, square and triangular, with excellent durability and load-bearing capacity, ensuring reliable use in various environments... Coating: Black Bitumen, Epoxy Painting Standard: DIN4056 Certification: ISO 9001:2008 Type: Round, Square, Triangle Application: Municipal, Urban, Public Service Grade: En124, A15, B125, C250, D400, E600 and F900 Specification: Various clear opening diameter Trademark: MIDAS Origin: Shanxi, China Production Capacity: 100000pieces/month.

Our ISO2531 ductile iron pipe fittings are precision engineered to provide superior quality and performance in a wide range of applications. These fittings are made from high-quality ductile iron that is stronger, more durable and more resistant to corrosion than other materials, such as cast iron or PVC Production information: 1. Standard: ISO2531 2. Rang , e: DN100-DN2000 3. Coating: Internal:

Material:Ductile iron Standard: EN545,   EN598, ISO2531, ANSI/AWWA, etc Size: DN50-DN2600mm Color: Blue,Black,Red   Ect. Joint Type: Flange   type Pressure: PN10/PN16/PN25/PN40 OEM: Acceptable. We're professional double flange 90° duck foot bend manufacturers and suppliers in China, specialized in providing high quality products. We warmly welcome you to buy high-grade double flange 90° duck foot bend for sale here from our factory. For price consultation, contact us.

EN545 Ductile Iron Pipe is designed for potable water transmission and distribution applications, ensuring durability and reliability. These pipes are available in a wide range of diameters from DN80 to DN2600, featuring T-Type (push-on joint) for easy installation. They are offered in various classes, including K7, K8, K9, C40, C30, and C25, to suit different pressure and application requirements... EN545 ductile iron pipes are primarily used for potable water distribution systems, ensuring safe and reliable water transportation.   These pipes are available in a range of diameters from DN80 to DN2600, accommodating various project requirements.  

1. Material: Ductile iron. 2. Standard: EN545, EN598, ISO2531, BS4772, AWWA C110, AWWA C153, GB/T13295 3. Test: In accordance with ISO 2531 / EN 545 / EN598 and 100% water pressure test 4. Connection: DIN2576, BS4504 PN16, ANSI B16.5 5. Flange Drilling: PN10 / PN16 / PN25 according to BS4504 6. Internal Lining: Cement, conform to ISO4179/ Fishon Bonded Epoxy (FBE) 7. External coating: Zinc + Bitumen, conform to ISO8179/ Fishon Bonded Epoxy (FBE)/ Epoxy/ Bitumen 8. Usage: Jointed by the bolts, nuts and sealed by the gaskets 9. Note: the gaskets, bolts & nuts are supplied respectively as your special requirement. Our DI Socket Fittings with EX Joint are designed to offer maximum durability and efficiency for industrial piping systems. These fittings are crafted from high-quality ductile iron materials, which provide exceptional strength, resistance to corrosion, and long-lasting performance. Our DI Socket Fittings with EX Joint are also equipped with EX Joint technology, which ensures a secure and reliable connection between pipes. This innovative joint technology allows for quick and easy installation and disassembly, saving time and money on maintenance and repairs. Our DI Socket Fittings with EX Joint come in various sizes and configurations to meet the needs of different industrial applications. They are suitable for use in a wide range of pipelines, including water supply, sewerage, gas, and oil. Here are some of the key features of our DI Socket Fittings with EX Joint: - Made from high-quality ductile iron materials - Designed for maximum strength and durability - Equipped with EX Joint technology for a secure and reliable connection - Easy to install and disassemble - Suitable for use in various industrial applications - Available in various sizes and configurations https://www.midaspipelines.com/< , br>

In the world of machinery maintenance, TC oil seals are often described as “small parts with big impact.” A single seal, if chosen incorrectly, can lead to downtime, lost production, and frustrated customers. For distributors and wholesalers, guiding clients to select the right TC oil seal is not just about technical accuracy—it’s about building trust and ensuring long-term cooperation. Why TC Oil Seals Matter The TC oil seal features a double-lip design: one lip prevents lubricant leakage, while the other blocks dust and contaminants. Think of it as the gatekeeper of the equipment. Whether in chemical pumps, steel mill gearboxes, or household compressors, the reliability of the seal directly affects equipment lifespan. Key Considerations in Selection Operating Environment High temperature: Fluoroelastomer (FKM) is recommended. Corrosive media: PTFE or specially formulated rubber is suitable. High-speed rotation: Double-lip NBR oil seal design maintains oil film stability. Equipment Type Pumps: Require stable sealing to avoid downtime. Compressors: Focus on wear resistance. Household appliances: Emphasize dust prevention and low noise. Installation Details Shaft surface must be smooth. Proper alignment is essential. Lubrication should be applied to the sealing lip during installation. Concerns of Distributors and Wholesalers Inventory Pressure: Customers often need seals urgently, so common sizes must be in stock. Customization Needs: Non-standard dimensions and special materials are increasingly common. After-Sales Support: Installation guidance, inspection programs, and quick replacement solutions strengthen customer loyalty. FAQ Q: What do customers ask most? A: Service life. The answer depends on operating conditions, material, and installation quality. Q: How to reduce inventory risks? A: Stock universal sizes and maintain flexible supply channels with manufacturers. Q: What if customers complain about leakage? A: Check shaft condition, verify installation, and confirm material suitability. NQKSF is Experience With over 30 years in the sealing industry, NQKSF has built a reputation for reliability. We provide rapid delivery of standard parts, covering more than ten thousand specifications of O-rings and oil seals, ensuring urgent demands are met. For special applications, we offer full customization services—from material selection and structural design to production testing—so seals precisely match operating conditions. Our technical expertise helps optimize sealing systems, reduce maintenance costs, and enhance equipment reliability. Enterprise Highlights NQKSF operates a modern manufacturing facility and is recognized as a leader in the sealing industry. With complete models available in stock, our products are exported to more than 80 countries and serve global brands. The company is accredited as a Provincial Technology Innovation Center, a Specialized and Innovative Enterprise, a High-Tech Enterprise, and a leading player in regional industrial clusters. Choosing the right TC oil seal is not only a technical decision but also a matter of service and supply chain reliability. For distributors and wholesalers, understanding customer needs and offering dependable products and support is the path to market success. NQKSF stands ready to partner with businesses worldwide, ensuring machinery runs smoothly and efficiently.

Minimum Order: 1000