Tools & Hardware

2X two-stage rotary vane series vacuum pump Product Description: The 2X series vacuum pump is of two-stage structure, its operation performance consists of two parts, high-pressure stage and lowpressure stage. Its suction port is connected with the vacuum container or other vacuum equipments to helps intaking or draining the gas inside the container during operation. When the equipment is in vacuum, the high-pressure stage drain valve will be closed, then the gas suctioned by the high-pressure stage will be transferred to the second stage, after that, the gas will be suctioned and drained through the second stage, so that the vacuum equipment can get a certain extent vacuum. The technical parameter of the pump is 6×10-2Pa. According to the user's operation requirements, to equip a vacuum booster pump, and this pump is used as a backing pump. Since the booster pump increased suction force, accompanied with the continuous suction of the backing pump, the equipment will obtain higher vacuum percentage. Features: 1. Wide range of free-air capacities to match specific applications 2. Positive pressure oil system ensures proper lubrication and prevents oil starvation under high gas loads 3. Fast acting inlet valve protects internal components against oil and air contamination if the pump stops while under vacuum 4. Gas ballast valve limits internal condensation; Lets you use pump when condensable vapors are presen

Minimum Order: 1 bags

　Pneumatic systems play an essential role in modern industrial automation, powering various machines, conveyors, and robotic arms. These systems rely heavily on pneumatic seals to ensure smooth and efficient operation. Pneumatic seals, though often overlooked, are critical in preventing air leakage, maintaining pressure, and reducing wear on vital components. This article explores why pneumatic seals are indispensable in industrial automation and outlines the key considerations when selecting and maintaining them. The Primary Function of Pneumatic Seals The primary role of pneumatic seals is to prevent air leakage and ensure the stability of the pneumatic system. Pneumatic systems typically consist of compressors, cylinders, valves, and other components, and seals are necessary to maintain the integrity of the system and ensure that these components work together efficiently. Applications of Pneumatic Seals in Industrial Automation Pneumatic seals are crucial in various industrial automation applications, especially in the following areas: Automated Production Lines: Pneumatic seals are used in cylinders, pneumatic motors, and other components within automated production lines to ensure the continuous, stable operation of machines and systems. Packaging Machinery: In the packaging industry, pneumatic systems are used for high-speed, precise operations. Pneumatic seals help prevent air leakage, which ensures consistent production rates and quality. Automotive Manufacturing: Pneumatic systems are essential in automotive manufacturing, powering machines used in welding, spraying, and stamping. Pneumatic seals ensure these machines remain reliable and efficient throughout production. Electronics Assembly: Pneumatic seals play an important role in maintaining the stability and performance of high-speed assembly lines in electronics manufacturing, preventing air leakage that could compromise precision and speed. Material Selection for Pneumatic Seals Choosing the right material for pneumatic seals is crucial for ensuring the seal's performance and durability. Some commonly used materials include: Nitrile Rubber (NBR): Ideal for standard pneumatic systems with moderate temperature and pressure conditions. Polyurethane (PU): Used in high-load and high-speed applications due to its excellent wear resistance. Fluorocarbon Rubber (FKM): Suitable for high-temperature and corrosive environments, FKM performs well under extreme conditions. Polytetrafluoroethylene (PTFE): Known for its low friction and high precision, PTFE is used in high-performance pneumatic devices. The choice of material depends on factors such as temperature, pressure, and the type of air or fluid being used in the system. Installation and Maintenance of Pneumatic Seals Proper installation and maintenance are key to prolonging the lifespan of pneumatic seals. During installation, ensure that the surface is smooth and free of contaminants to avoid damaging the seal. Adequate lubrication can help reduce friction and extend seal life. Additionally, regular inspections and timely replacements are necessary, especially in high-frequency or high- load applications, to prevent system failures. Tips for Distributors and Wholesalers For distributors and wholesalers, offering the right pneumatic seal solutions is critical to building long-term relationships with customers. First, they should engage with customers to understand their operational needs and recommend the most suitable seal materials. Second, maintaining a diverse inventory and ensuring timely delivery will help meet various customer requirements. Lastly, providing regular maintenance advice and technical support is essential for improving customer satisfaction and loyalty. Pneumatic seals are indispensable in industrial automation, ensuring system stability and efficiency. By selecting the right materials, ensuring proper installation, and performing regular maintenance, the performance of pneumatic systems can be significantly enhanced. For distributors and wholesalers, understanding customer needs and providing suitable sealing solutions is the key to success.

Minimum Order: 1000

Our Stainless Steel Flange V Profile is engineered for precision and durability, making it an ideal choice for industrial piping and structural applications. Manufactured from high-grade stainless steel, this V-Profile Fittings with flanged edges offers excellent resistance to corrosion, high temperatures, and mechanical stress. Its unique design ensures easy installation, improved load distribution, and a clean, professional finish in various fabrication and construction projects. Suitable for use in oil & gas, chemical processing, marine, and architectural industries.

TrustPRESS® presents the Stainless Steel Female Union M Profile, a high- quality, quick-connect fitting designed for harsh industrial environments. Crafted from premium stainless steel, this product ensures excellent corrosion resistance and long-term durability, making it ideal for piping connections, fluid control, and other industrial applications. Key Features High-Quality Materials Stainless Steel 1.4301 (AISI 304): Suitable for industrial applications under standard conditions, offering good corrosion resistance and machinability. Stainless Steel 1.4404 (AISI 316L): Designed for environments with higher corrosion demands, especially in marine and chemical applications. Outstanding Performance Maximum Working Pressure: Withstands a maximum pressure of up to 16 bar, ensuring reliable connections even in high-pressure environments. Compliance with International Standards This product is manufactured according to EN Standard requirements, ensuring every unit meets international quality standards.

Stainless Steel Pipe Bridge with Plain End is, as its name implies, a stainless steel pipe component with a “bridge” configuration and plain-end design. It is mainly used for connecting, redirecting, or transitioning between different pipelines in fluid or gas transmission systems, which enables more efficient pipe routing in confined spaces and reduces the need for additional elbows. Its key features include a smooth flow path and ease of connection, thereby enhancing installation efficiency and aesthetics. Given the inherent advantages of stainless steel—such as corrosion resistance, high strength, and long service life—this product is widely applied in residential, commercial, and industrial piping systems including water supply and drainage, HVAC, and gas pipelines. Brand Advantage: TrustPRESS® As a professional stainless steel pipe fittings brand, TrustPRESS® is committed to delivering high-quality, reliable product solutions. The brand rigorously applies strict standards in raw material selection, manufacturing processes, and quality control, ensuring that each product performs stably under various environmental conditions and meets the requirements of diverse projects.

Stainless Steel 90° Elbow with Plain End M Profile is a pipe connector made of stainless steel with a 90-degree right-angle bend and a plain end design (no threads). It is suitable for pipe systems that require right-angle turns.  Plain end Elbow 90 degrees M profile is an advanced connecting type in potable water system, tap water system, heating system, steam system, industrial oil pipe system and industrial gas pipe system. It is suitable for water, oil and gas pipeline connection. M-profile Fittings Material: ● Stainless Steel 1.4301 (AISI 304) ● Stainless Steel 1.4404 (AISI 316L) Working Pressure: Max 16 bar

TrustPRESS® Stainless Steel 90° Elbow M Profile is a press fitting made of stainless steel with a rubber seal and DVGW certification. It is suitable for drinking water, gas and other demanding pipe systems, ensuring safe and reliable connections and excellent corrosion resistance. Advantages of M-Profile Press Fittings: ● Easy assembly, practical and convenient (efficient) ● Quick installation (saving on hours of labour) ● Safe and approved (guaranteed system) ● No need for specialised personnel (no special skills required) ● Safe and no use of naked flames

DY piston ring surface treatment includes Chromium plating, Nitriding, PCr(CrN), DTC(ta-C), PVD(CrN), DLC(ta-C). With the rapid improvement of modern engine performance, in order to meet the development needs of high combustion pressure, high output power and maintenance-free, Dongya has successfully developed a DLC(Diamond Like Carbon) coating with low friction coefficient, high hardness, high wear resistance and significant tensile cylinder performance after years of professional research. It is currently the world's leading piston ring surface treatment technology, which is recommended that customers give priority to the choice of DLC coated ring group. Coating Type Chromium plating(Cr) Nitriding(N) PCr（CrN） DTC （ta-C） Technological principle Hard chromium electroplating Gas nitriding Physical vapor deposition physical vapor depositionMagnetic Filtered Cathodic Vacuum Arc Deposition Coating Hardness(HV) Above 800 Above 900 1200±300 1500～ 3000 Coating thickness Above 0.05 Above 0.03 Above 0.001 Above 0.001 wear resistance ★ ★ ★★ ★★★ longevity ★ ★ ★★ ★★★

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

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