Tools & Hardware

Hydraulic Polyurethane (PU) Seals: Technical Specifications 1. Material Characteristics Composition: PU elastomers with customizable formulations, often reinforced with fiberglass/carbon fibers[3] Key Properties: Abrasion Resistance: 3-5x longer service life than NBR rubber Pressure Tolerance: Maintains sealing at ≤40MPa (enhanced grades) Temperature Range: -40°C to +100°C (short-term 120°C) 2. Performance Comparison AdvantageLimitation▶ Extreme wear resistance ▶ Inferior to FKM at >100°C ▶ Excellent dynamic sealing▶ Vulnerable to hydrolysis ▶ Cost-effective for heavy-duty use▶ Requires precise installation 3. Industrial Applications Primary Functions: Prevent fluid leakage in reciprocating systems Exclude contaminants in construction equipment Common Configurations: U-Cups: For piston/piston rod sealing UN Seals: Bidirectional pressure sealing UHS Series: High-pressure hydraulic cylinders 4. Selection Guidelines Dimensional Parameters: Example: UN 50×60×10 = 50mm ID × 60mm OD × 10mm thickness Chemical Compatibility: Avoid ester-based fluids and ketone solvents Not recommended for water-glycol systems >60°C Typical Service Life: 2-5 years in mining/construction equipment under proper maintenance

Minimum Order: 100

FZB fluorine plastic alloy self-priming pump Pump material: FEP/PTFE/PFA fluoroplastic alloy with WB F4 External type bellows mechanical seal and suction height is for 3 to 4 meters without bottom valve. The flow components of fluorine Plastic alloy self-priming pump is made of fluoroplastic alloy molding press. It has stronger mechanical strength, corrosion resistance, heat resistance than fluorine plastic self-priming pump. Fluoroplastic centrifugal pump is for flow backward condition (liquid) into the pump chamber without external force. Fluorine plastic alloy self-priming pump is for suction conditions (liquid within 3 meters) below the pump cavity. Flow rate: 2 to 100m3/h Head: 18-45m Connector way: Closed coupling and shaft coupling. Working principle the pump body is operated in such a way as to discharge the gas in the pump chamber, so as to generate pressure, which makes the atmospheric pressure push the liquid in the low liquid tank into the inlet vacuum pipeline, and transport the materials to the designated position through the working principle of the centrifugal pump. Pump is used to transport corrosive media or high-risk chemicals between -20℃ and 100℃.For example: hydrochloric acid, fuming sulfuric acid, hydrofluoric acid, concentrated nitric acid, phosphorus trichloride, phosphorus trichloride, caustic soda, calcium chloride, organic solvent, strong oxidant and so on. (HCL, H2SO etc) Application Urban environmental protection, construction, fire, chemical, pharmaceutical, dye, printing and dyeing, brewing, electric power, electroplating, papermaking, industrial and mining washing, equipment cooling, etc.

Minimum Order: 1 bags

FPZ Corrosion resistant polypropylene self priming pump /Non-metal pump FPZ self- priming non-metal pump is made of reinforced polypropylene FRPP (CFR-PP) to have high mechanical strength and corrosion resistance. The pump cavity is provided with a liquid suction chamber, liquid storage chamber, liquid return check valve, gas- liquid separation chamber, reflux hole so that the pump has the function of self- priming. Suction height: 3m to 4m. The pump is equipped with anticorrosion mechanical seal and has no leakage. Impeller and shaft are integrated. The pump and motor can be close coupling or shaft coupling. The pump is Suitable for convey general acid, alkali and salt etc. chemical liquids/fluids and widely used in chemical, pharmaceutical, food, smelting, environmental protection, sewage treatment, inorganic salt and other industries. The temperature of pumped fluids: -10 to 90 degree Celsius.

Minimum Order: 1 bags

No leakage vertical self-priming pump Features: 1. The pump adopts no leakage seal device of dynamic seal and auxiliary seal to replace the packing seal or mechanical seal. The sealing device has no friction and wear, and its service life is more than 10 times longer than that of traditional seals. It is the ideal pump to replace submerged pump, submersible pump, submersible sewage pump etc. 2. According to the principle of vacuum pump, the pump adopts electric air control valve for self-priming. Self-priming performance is stable and reliable. 3. The pump has self-priming function, high efficiency, energy saving, temperature resistance, pressure resistance and wear resistance etc. Pump structure: The pump has cone type, rectangular type, explosion-proof type, outdoor type and trolley mobile type. The choice can be made according to the installation space on the site. The explosion-proof type is suitable for flammable and explosive environment. The outdoor type is equipped with outdoor motor, and it can be used in outdoor situations. The wheeled mobile type can push the pump to any working site you need Pump material: The pump can be made of Cast iron, cast steel, stainless steel, reinforced polypropylene etc. Materials. Application: WFB no leakage self-priming pump is widely used in municipal sewage engineering, pond breeding, power, chemical, metallurgy, medicine, food, fire protection, environmental protection, electroplating, water purification, municipal, national defense, textile, paper, mining, construction, and other industries.

Minimum Order: 1 bags

FZB fluorine plastic self-priming chemical pump The flow parts are all made of F46 fluorine plastic alloy, with strong corrosion resistance, tight and reliable sealing performance, high mechanical strength, no aging, no toxin decomposition, convenient maintenance etc. characteristics. The pump body is provided with a liquid suction chamber, liquid storage chamber, liquid return check chamber, gas-liquid separation chamber, reflux hole to have the performance of self-priming. The pump needs to be infused with liquid only for the first time before the pump starts. It does not need the infusion later again. The mechanical seal does not need to add cooling water for cooling, simple operation, safety and no leakage. It is the reliable pump to replace the submerged pump.

Minimum Order: 1 bags

Corrosion resistant self-priming pump VSP self-priming pump is composed of a pump body, pump cover, rotor assembly, and power component. The rotor assembly is installed in the pump cavity composed of the pump body and pump cover, and the power component drives the rotor assembly to rotate. Through the rotation of the rotor assembly in the pump cavity, the volume of the sealing chamber changes, quickly generating a vacuum degree to absorb materials. Characteristics of VSP strong self-priming pump VSP self-priming pump has super strong suction force and a wide range of liquid viscosity. It can be used with volatile solvents and high viscosity oil adhesives. Barreled and filled liquids can be pumped and sucked clean, with a suction cleanliness higher than that of vacuum units. Moreover, when a barrel of material is emptied and inserted into the next barrel, it can be sucked up in just one second. The self-priming time is extremely short, at 3 meters/2 seconds, while other self-priming pumps have a cavitation resistance performance of over 3 meters/180 seconds. And the structure is simple, with fewer components, easy installation, easy maintenance, and long service life. 1. Strong self-suction ability: unique and innovative structure, with a suction height of 8.2 meters. 2. Short self-priming time: 3 meters/2 seconds, 5 meters/8 seconds, 8 meters/15 seconds. 3. Wide pumping range: can pump volatile solvents to high viscosity liquids. 4. Strong anti cavitation performance: capable of pumping liquid from high vacuum containers. VSP Self-priming pump usage 1.Extraction and transportation of various low specific gravity and volatile solvent solutions. 2. Barreled liquid extraction and transportation, with light and clean suction (replacing bucket pumps and vacuum pump units) 3. Extract and absorb the residue inside the tank. 4. Extraction and cleaning of sludge at the bottom of the tank and tank. 5. Chemical industries such as agriculture, pharmaceuticals, and intermediates. 6. Extraction and transportation of high viscosity liquids in industries such as daily chemicals and oil products. 7. Brewery related industries such as beer and yellow rice wine. 8. Food related industries such as dairy and dairy products.

Minimum Order: 1 bags

Are you tired of dealing with leaky washing machine seals? Look no further than NQKSF Seals Manufacturer! We are your one-stop shop for high-quality rubber seals for all types of washing machines. At NQKSF Seals Manufacturer, we understand the frustration of dealing with worn-out or damaged seals. That's why we offer a wide range of seals made from high-quality rubber materials to ensure a perfect fit and long-lasting durability. Whether you have a front-loading or top-loading washing machine, we have the right seal for you. Our seals are designed to withstand the harsh conditions of washing machines, including exposure to water, detergent, and high-speed spinning. With our seals, you can say goodbye to leaks and enjoy a worry-free laundry experience. In addition to our standard washing machine seals, we also offer custom sealing solutions to meet your specific needs. Our team of experts can work with you to design and manufacture seals that are tailored to your washing machine's unique requirements. Don't let leaky seals ruin your laundry day. Trust NQKSF Seals Manufacturer for top-quality rubber seals that will keep your washing machine running smoothly. Contact us today to learn more about our products and how we can help you keep your washing machine in top condition.

Minimum Order: 500

Self-priming seawater pump FRP material has its unique strong corrosion resistance, small friction resistance, high transport capacity, strong adaptability, simple construction method, easy maintenance etc. advantages. It has been widely used in the offshore oil platform in many systems. FRP pump can resist salt, acid, sea water etc. corrosion. SZ type fiberglass reinforced plastics corrosion resistant self-priming pump. The flow components for SZ fiberglass self priming pump are made of the modified phenolic fiberglass reinforced plastic material by high temperature molding. The pump has the advantages such as light weight, high strength, no deformation, high temperature resistance, corrosion resistance and easy maintenance etc. Mechanical seal for the pump is WB2 fitted outside type F4 corrugated mechanical seal which is reliable and has a long service life. SZ type fiberglass self priming pump has good self priming performance. The pump body is equipped with a liquid suction chamber, liquid storage chamber, liquid back check valve and reflux hole. Before the pump works, keep a quantitative liquid in the pump body and exhaust the air in the pipe and then the pump can transfer the liquids. The pump works without foot valve and simplifies the pipeline. Suction height: 4meters. SZ type fiberglass self priming pump is widely used to transfer various non- oxidizing acids(Hydrochloric acid, dilute sulfuric acid, formic acid, acetic acid, butyric acid, phosphoric acid)etc corrosive liquids which is not easy to crystallize and temperature is no higher than 100 degree Celsius)in petrochemical, smelting, dyes, printing and dyeing, pesticides, rare earth, fertilizer and other industries.

Minimum Order: 1 bags

ZXL directly-coupled self-priming pump is developed based on the ZX flexible shaft coupling self-priming pump. It has a horizontal structure, and the pump and motor are coaxially connected. Advantages 1 - Compact structure. It has a beautiful appearance, and occupies less space. If an IP55 outdoor motor is used, there is no need for a pump room and it can be placed outdoors for use. 2 - Smooth operation, low noise, and high concentricity of components. The motor and pump are directly connected, simplifying the intermediate structure and increasing the smoothness of operation. The impeller has dynamic and static balance, no vibration during operation, low noise, extending the service life of bearings, and improving the operating environment. 3 - The shaft seal adopts high-quality mechanical seals, and the dynamic and static rings are made of hard alloy, which is wear-resistant, leak free, and has a long service life. 4 - Adopting advanced hydraulic models, it has the characteristics of high efficiency and good performance. 5 - Easy to install, use, and maintain. The discharge pipeline does not require a check valve, and the suction pipeline does not require a bottom valve, thus simplifying the pipeline system and improving working conditions. 6 - Unique structure and good self-priming performance, only a certain amount of liquid needs to be stored in the pump body before operation. Usage conditions: 1 - The ambient temperature is ≤ 40 ℃, the altitude is ≤ 1000m, the relative humidity is ≤ 95%, the medium temperature is ≤ 80 ℃, and it is required to reach 200 ℃. 2 - The self-priming height should not exceed the specified value of 5-6.5 meters, and the length of the suction pipe should be ≤ 10 meters Application 1 - ZXL self-priming pump is suitable for industrial and urban water supply and drainage, environmental protection, construction, fire protection, chemical, pharmaceutical, dyeing, printing and dyeing, brewing, electricity, electroplating, papermaking, industrial and mining flushing, equipment cooling, etc. The temperature of the medium used should not exceed 80 ℃, the viscosity should be ≤ 100 cP, and the solid content should be below 30%. 2 - Using bronze impellers and explosion-proof motors, it is suitable for oil depots, gas stations, oil tankers, oil tankers, docks, oil trucks, airports, and transporting gasoline, kerosene, diesel, aviation kerosene, etc. separately. If corrosion-resistant mechanical seals and stainless steel materials are used instead, they can also be applied to chemical, pharmaceutical, brewing, electroplating, printing, papermaking, power mining, etc. The conveying medium temperature is -20 ℃ -80 ℃, the viscosity is ≤ 100%, and the solid content can reach below 30%. The ZXL series direct coupled self-priming pump is particularly suitable for oil tankers or water transport ships, and can also be used as a sweeping pump with good sweeping effect.

Minimum Order: 1 bags

Seal rings are vital in preventing fluid or gas leakage across a wide range of equipment. The material of the seal ring largely determines its effectiveness and durability under specific conditions such as temperature, pressure, and chemical exposure. Below are the most common seal ring materials and their typical applications: · Nitrile Rubber (NBR): Ideal for mineral oils, lubricants, and mildly aggressive fluids. It performs well between –40°C and +120°C and is widely used in automotive, hydraulic, and general industrial applications due to its affordability and reliability. · Fluorocarbon Rubber (FKM): Known for outstanding resistance to high temperatures (up to +250°C) and aggressive chemicals. Commonly used in chemical plants, engines, and fuel systems where sealing performance is critical under extreme conditions. · Silicone Rubber (VMQ): Offers excellent flexibility and low-temperature resistance (down to –60°C). It is favored in food processing, medical devices, and electronic equipment that require high hygiene and environmental safety. · Ethylene Propylene Diene Monomer (EPDM): Resists steam, water, brake fluids, and ozone well. Frequently found in water treatment systems, solar heating units, and outdoor applications. · Polytetrafluoroethylene (PTFE): Chemically inert and resistant to almost all aggressive substances. With high temperature tolerance and low friction, it is suitable for chemical processing, pharmaceutical production, and cleanroom environments. · Hydrogenated Nitrile Rubber (HNBR): An upgraded version of NBR that provides enhanced heat resistance and mechanical strength. It performs well in high- pressure and dynamic sealing situations. Selection Advice: Choosing the right seal ring material requires consideration of multiple factors—operating temperature, fluid compatibility, pressure range, dynamic vs. static use, and expected lifespan. For standard conditions, NBR is often sufficient. In high-temperature or corrosive environments, FKM or PTFE is recommended. For food-grade or medical applications, VMQ or EPDM is more appropriate. Selecting the optimal material not only improves sealing performance but also reduces downtime and maintenance costs, ultimately enhancing overall equipment efficiency.

Minimum Order: 500

FYU UHMWPE submerged pump The flow components are all made of ultra-high molecular weight polyethylene (UHMWPE) integral molding. The advantages of the material: excellent wear resistance, impact resistance, creep resistance, and excellent corrosion resistance. The pump is suitable for conveying the acidic and alkaline slurry or clean liquid in the low tank within the range of -20℃~90℃ FYU corrosion resistant submerged pump is widely used in chemical industry, petroleum, machinery, sewage engineering, metallurgy, environmental protection, water treatment, hospital, food and other departments. If the mixing head is used on the pump, it will be FYU-J submerged pump with mixing slurry, which can be used for conveying slurry, or for cleaning the bottom sludge and other sediments. Performance range Flow: 1.5 to 400m3/h Head: 6 to 50m Speed: 1450rpm-2900rpm Submerged depth: 250mm-2500mm Application: All kinds of acid, alkali, corrosive slurry, electrolyte, waste acid, sewage and other medium transport Transportation of fluosilicic acid, phosphate slurry and other media Water treatment and environmental protection industry: it can transport all kinds of sewage with impurities Pesticide, dyestuff, fine industry: it can transport liquid or slurry containing dilute acid, alkali liquid and mixed acid. Suction of corrosive and non-corrosive liquid or slurry in industrial production

Minimum Order: 1 bags

Fiberglass immersible pump There are two types for FRP submersible pump. 1 - WSY pump is vertical fiberglass vortex pump. 2 - FSY type pump is vertical fiberglass submersible centrifugal pump. Because the pump is extended into the storage tank and the depth of the tank is different, the design fluid depth is optional between 800mm and 3000mm. As long as the liquid is higher than the pump body, the liquid can be started without filling. There are leakage holes under the flat cover plate, so that the liquid will not leak out of the storage tank. All the glass parts for fiberglass reinforced plastic pump which contact with the medium are with polyvinyl butyral modified phenolic glass fiber, high temperature molding phenolic. The connecting tube, fluid pipe are made of rolled semi dry process phenolic fiberglass and the impeller shaft sleeve assembly all use phenolic daub and pump shaft sticks into an organic whole. The parts assembly under liquid are for phenolic daub binder. Fiberglass plastic (no metal material) which contacts with the media has corrosion performance and reliability. The pump has light weight, high strength, non-deformation, temperature resistance, corrosion resistance and other excellent properties, in the aspect of corrosion protection can partially replace the molybdenum containing stainless steel, titanium and titanium precious alloy metals. Pump in the direction of transmission and rotation: the pump is driven directly by a motor through a clawed elastic coupling, and the pump rotates clockwise from the motor end. Fiberglass reinforced plastic submerged pump is widely used in chemical, petrochemical, refining, dyestuff, pesticide, pharmaceutical, rare earth, fertilizer and other industries. The pump is the ideal equipment used to convey all kinds of oxidizing acid (hydrochloric acid, thin sulfuric acid, formic acid, acetic acid, butyric acid) and other corrosive medium. The liquid is without suspended solid particles, not easy to crystallization and the temperature is not higher than 100 ℃.

Minimum Order: 1 bags

Pipeline sewage drainage vertical pump The pump is vertical single stage single suction pipeline pump as dry type installation. It is equipped with the impeller of single flow passage or double-flow passage and new mechanical seal and reasonable volute chamber. The pump is widely used to transport the wastewater or sewage with solid particle or long fiber etc. impurities. The inlet and outlet center lines are on a straight line and can be installed directly anywhere in the pipeline. The size of inlet and outlet is the same. It is characterized by remarkable energy saving, anti-winding, no blocking, automatic installation and automatic control. The pump material is cast iron or stainless steel (for discharging corrosive wastewater) Application: 1 - Sewage discharge in hospitals, hotels and high-rise buildings. 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

Minimum Order: 1 bags

Dry – mounted type vertical sewage pump The pump is designed and manufactured to have lower inlet, volute impeller with wide flow passage so that the wastewater or sewage with solid particle or fiber etc. impurities can pass impeller and be discharged smoothly. Pedestal base plate makes pump running more stable installation, disassembly, and movement more flexible. Double end face mechanical seal has longer life. Application: Factory business seriously polluted wastewater discharge, sewage station of main housing, urban sewage treatment plant water system, civil air defense system drainage stand, waterworks water supply equipment, hospital, hotel of sewage, municipal engineering, construction, mining machine, rural biogas digester, irrigation and other industries to discharge sewage or wastewater containing particles, dirt. The pump can also be used for water and weak corrosive medium.

Minimum Order: 1 bags