Tools & Hardware

Slurry pumps are a general term for industrial pumps used to transport media containing solid particles, encompassing various types such as centrifugal slurry pumps, screw pumps, and vortex pumps. They are widely applied in fields like mining, chemical industry, papermaking, and environmental protection Centrifugal slurry pump: The motor drives the impeller to rotate at high speed, and the slurry gains energy under the action of centrifugal force, being thrown out by the impeller and discharged through the pump casing, suitable for conveying medium and low concentration slurries. Structural features: The wide flow channel prevents blockage, and the wear- resistant materials such as high-chromium alloy, rubber, or ceramics are used for the flow-passing components. Common types: horizontal slurry pump, vertical submerged pump, submersible slurry pump. 2. Positive displacement slurry pump: It conveys slurry through sealed chambers, with flow rate directly proportional to rotational speed, suitable for high- concentration and high-viscosity media. Screw Pump: Single-screw design, delivers smooth and pulse-free flow, capable of pumping high-viscosity slurry with concentrations ranging from 40% to 80%. Plunger pump/diaphragm pump: Suitable for ultra-high pressure or leak-free conditions. 3. Vortex slurry pump: The rotating impeller generates a vortex, causing solid particles to flow toward the channel center, reducing wear. It has lower efficiency but excellent wear resistance. Slurry pump: a general term encompassing all types of pumps designed to transport slurries containing solid particles. Selection Parameters: Flow range: 9-2600 m³/h (varies significantly across different models). Head range: 12-80 m. Medium temperature: -20°C to 120°C (depending on the material). Solid content: Generally below 6%-15%, with high-concentration dedicated pumps capable of exceeding 40%. Flow passage components materials: high chromium alloy, rubber lining, stainless steel, ultra-high molecular weight polyethylene, etc. Slurry pump: Focuses on conveying highly abrasive media such as ore sand and coal slag in industries like mining and power. Slurry Pump: Focused on transporting mud mixtures in the construction and dredging industries UHB-ZK corrosion-resistant and mortar slurry pump is a cantilever single-stage single suction centrifugal pump, and its flow components are made of steel lined ultra-high molecular weight polyethylene. This pump has the characteristics of corrosion resistance and wear resistance, and can adapt to various working conditions. It is used to transport acid, alkaline clear liquid or slurry, corrosive slurry, various dilute acids and sewage media. The applicable media include sulfuric acid with a concentration of less than 80%, nitric acid with a concentration of less than 50%, hydrochloric acid with various concentrations, and liquid alkali. The temperature range of this pump is -20 ℃ to 105 ℃ (using modified material U00), the flow range is 5-2600m ³/h, and the head is within 80m. Its semi open impeller design enhances the flow passage and can transport media with a solid content not exceeding 40%. This series of products is widely used in industries such as sulfuric acid phosphate fertilizer, non-ferrous metal smelting, chemical industry, water treatment, steel and wet desulfurization

Minimum Order: 1 bags

Slurry pumps and sewage pumps are two distinct types of pumps, primarily differing in their application scenarios and structural design. Slurry pumps are mainly used for slurry transportation and treatment in industrial production, while sewage pumps are primarily employed for urban drainage and wastewater treatment. The usage scenarios of slurry pumps and sewage pumps differ. Slurry pumps are primarily used in industries such as mining, chemical processing, construction, and metallurgy for slurry transportation and treatment. Slurry is a liquid containing a high concentration of solid particles, and using ordinary water pumps for its conveyance can easily lead to pump clogging or damage. Therefore, slurry pumps feature specialized structural designs to effectively transport high-concentration, high-viscosity slurries. In contrast, sewage pumps are mainly employed for urban drainage and wastewater treatment. Urban sewage contains significant amounts of organic matter and microorganisms, which, if not promptly discharged and treated, pose substantial risks to the environment and human health. Sewage pumps can lift wastewater from low-lying areas to higher elevations or transport it away from urban zones for further processing and disposal. 2. The structural design of slurry pumps and sewage pumps also differs. Slurry pumps typically adopt a centrifugal or plunger pump structure, which ensures high efficiency and stability when transporting slurry. The impeller and pump body of slurry pumps are made of special materials resistant to wear and corrosion in slurry. In contrast, sewage pumps usually employ a centrifugal or submersible pump structure, maintaining high efficiency and durability when handling sewage. The impeller and pump body of sewage pumps are also constructed with special materials to resist corrosion and clogging in sewage.

Minimum Order: 1 bags

The main types of pump impellers include channel type (single channel, double channel), blade type (closed, open), spiral centrifugal, and vortex type. The flow path impeller features a curved flow channel formed from the inlet to the outlet within the impeller. This design makes the flow path impeller particularly suitable for pumping liquids containing large particulate impurities or long fibers, demonstrating excellent anti-clogging capability. However, in comparison, its anti-cavitation performance is somewhat inferior, falling short of other types of impellers. Impeller with blades The casting process for semi-open and open impellers is relatively simple, and they are easy to maintain and clean to remove blocked impurities. However, their drawback is that during transportation, solid particles gradually increase wear on the inner walls of the volute chamber and the gaps between the blades, thereby reducing the pump's operational efficiency. Additionally, this wear can disrupt the flow stability of the liquid in the passage, causing pump vibration. Therefore, this type of impeller is not suitable for conveying media containing large particles or long fibers. In comparison, closed impellers offer higher operational efficiency and can run smoothly for extended periods, with relatively lower axial thrust. However, it should be noted that closed impellers are prone to clogging, making them unsuitable for pumping sewage media containing large particles or long fibers. Helical/ spiral centrifugal impeller The design feature lies in its twisted blades, which extend from the suction inlet toward the axial direction along the conical hub body. This design ensures that the transported liquid does not collide with any other components inside the pump when flowing through the blades, thereby avoiding potential damage to the pump while maintaining non-destructive handling of the liquid. Thanks to the helical propulsion effect, the impeller exhibits excellent particle suspension capability, making pumps equipped with this type of impeller particularly suitable for pumping media containing large particles and long fibers. Vortex impeller The design feature of the vortex impeller is that its blades are partially or entirely recessed from the flow passage of the volute, endowing it with excellent anti-clogging performance. During the pump's operation, particles are driven by the vortices generated by the impeller's rotation within the water pressure chamber. Notably, the movement of these suspended particles does not generate energy but instead exchanges energy with the liquid in the flow passage. This design ensures that suspended particles or long fibers do not directly contact the blades during flow, significantly reducing blade wear and eliminating issues of clearance enlargement caused by abrasion. Consequently, the vortex impeller is particularly suitable for pumping media containing large particles and long fibers.

Minimum Order: 1 bags

YB Self priming rotary vane pump is called sliding vane pump. It is with internal by-pass valve. The pump uses a rotor with sliding vanes to drive the liquid transfer delivery. The material of construction is nodular cast iron with self- lubricating vanes. Due to its superior performance, the pump can handle viscous and volatile liquid and require less horsepower than other equivalent pumps. The pump has its obvious advantage in the transmission of high flow at low revolution. Advantages: Excellent self-priming and dry run capabilities Widely application in diesel, gasoline, lubricating oil, heavy oil, etc. Vanes could be replaced without moving the whole pump makes easy maintenance. High discharging flow rate and low speed Unique sliding vane pump design self-adjust for wear to maintain flow rates Excellent at self-priming, eliminates expensive priming systems Extended dry-run capability, eliminates nuisance current monitoring systems Sliding vane design provides sustained performance and trouble-free operation Easy maintenance: vanes can be easily replaced without removing the pump from the piping system High suction lift abilities and line-stripping capabilities to completely empty tanks, and piping of fluid Low maintenance and low life-cycle costs, pumps are renewable and repairable Solids handling, provided by large displacement and slow internal velocities Thin to thick fluid viscosity flexibility, eliminates expensive heating systems Highly efficient, sliding vane pumps require less horsepower than other pumps, meaning spending less on motors initially and less on electricity to power the pump Application Widely used to transfer Fuel oil, Gasoline, Diesel, Jet fuel, Lube oil, Biofuels etc.

Minimum Order: 1 bags

Application fields of PW type horizontal sewage discharge pump 1、 Municipal sewage treatment and upgrading Small and medium-sized sewage pump station: When the pump station adopts a dry pump room (with the motor and pump body installed dry on the ground), the PW pump is used to lift the grid filtered sewage to the subsequent treatment unit. Its horizontal structure is convenient for maintaining the impeller and seal, without the need for overall lifting. Rainwater pumping station drainage: pumping out mixed leaves, sediment, and surface runoff debris in rainwater. PW pumps can pass solid particles with appropriate diameters (such as 2.5-inch impellers that can accommodate 35-50mm particles) and are not easily clogged. 2、 Industrial wastewater treatment system Factory workshop wastewater: applicable to wastewater containing impurities such as short fibers, broken skin, blood clots, and fruit peels discharged from industries such as printing and dyeing, papermaking, leather, slaughtering, and food processing. The pump body and impeller can be made of cast iron or corrosion- resistant material (304/316 stainless steel). Neutralization sedimentation tank effluent from chemical and pharmaceutical factories: Extract wastewater containing suspended solids and chemical sludge, and send it to a filter press or concentration tank. The turbid circulating water system in the steel and mining industries: transporting circulating water or sewage containing iron oxide scale, coal powder, sand and gravel. 3、 Construction sites and temporary drainage Excavation dewatering: Extracting underground seepage, rainwater, and water containing mud and sand. PW pumps can work continuously and have better resistance to sediment wear than ordinary water pumps. Tunnel construction drainage: When there is no risk of flooding inside the tunnel but it is necessary to pump the water from the tunnel area outside, a ground mounted PW pump can be used. Temporary sewage discharge: such as connecting temporary pipelines as mobile sewage equipment during the renovation of old pumping stations. 4、 Agricultural Irrigation and Aquaculture Drainage in flood prone areas: Remove the accumulated water in farmland and extract muddy water containing a small amount of weeds and soil. Fish pond and shrimp pond water exchange and discharge: the polluted water containing residual bait and feces at the bottom of the pond is treated on the shore. Please note that the PW pump is not submersible and needs to draw water from the pool shore (it can be equipped with a bottom valve or vacuum water intake device). 5、 Other occasions Integrated equipment for car wash and sewage treatment: as a ground supporting sewage pump. Coal yard and coal washing plant: transport coal slurry water and sedimentation tank wastewater. PW and PWF horizontal sewage discharge pumps are single-stage, single-suction, cantilever centrifugal sewage pumps. The pump suction inlet is axially horizontal, while the discharge outlet can be configured horizontally or vertically as needed. The main components include the pump cover, pump casing, impeller, shaft seal, shaft, and support frame. The shaft seal adopts a novel double mechanical seal structure. The pump and motor are mounted on a common base, with the motor directly driving the pump via an elastic coupling. This pump features high efficiency, significant energy savings, smooth operation, reliable performance, and convenient maintenance The impeller contains only two curved blades, resulting in a spacious flow channel that can pass through general suspended particles. There are four auxiliary blades on the back of the impeller to balance the axial thrust, and the impeller undergoes static balancing tests during manufacturing. 1. PW type horizontal sewage pump can transport sewage, suspended solid particles, long fiber substances, and domestic wastewater. The pump body is made of high- quality cast iron material, and the medium temperature does not exceed 100 ℃. 2. The PWF type horizontal sewage pump can transport sewage with acidic, alkaline or other corrosive properties, and is widely used in industries such as chemical, petroleum, light industry, food, pharmaceutical, brewing, environmental protection and sewage treatment. The pump body and overcurrent components are made of 304 stainless steel material, and the medium temperature is not higher than 100 ℃. Flow rate: 36-180m3/h; Lift: 8.5-48.5m; Motor power: 4-30KW; Speed: 960-2950r/min; Caliber: φ 65- φ 100; Medium temperature: ≤ 100 ℃.

Minimum Order: 1 bags

self-balancing multistage pump is an energy-efficient and high-performance multistage pump suitable for conveying clean water, corrosive liquids, oils, or media containing particles. It is widely used in mining, factories, urban water supply and drainage, boiler feed water, chemical processing, and oil extraction industries. The pump features symmetrically arranged impellers to counteract axial forces, achieving self-balancing without the need for a balance disc structure. With no friction or backflow losses from balancing devices, it delivers high operational efficiency. The pump casing adopts a horizontal sectional design, allowing adjustment of the required head by increasing or decreasing the number of stages. Working principle and structural features Self-Balancing Principle: The pump employs symmetrically arranged impeller rotor components, where the axial thrust generated by the forward and reverse sets of impellers largely cancels each other during operation, achieving "self-balancing" of axial forces. The residual axial force is supported by a pair of back-to-back angular contact ball bearings. This design completely eliminates the need for balance discs or balance drums found in traditional multistage pumps, avoiding failures such as balance disc wear or rotor seizure caused by the malfunction of balancing devices. ‌‌ Main structural components: Inlet section, middle section, outlet section, secondary inlet section. Forward impeller, reverse impeller, forward guide vane, reverse guide vane. Shaft, throttling pressure reducing device, bearing body, transition pipe, etc. Sealing types: The shaft can be sealed with either mechanical or packing seals, allowing the pump to replace bearings and seals without disassembling the inlet and outlet pipelines.

Minimum Order: 1 bags

GW-type pipeline non-clogging sewage pump, vertical single-stage centrifugal structure with inlet and outlet at the same horizontal size. It has small volume and the motor and pump is coaxial. Equipped with an installation base for secure mounting, the impeller adopts a single (or dual) flow channel design, ensuring excellent passage performance. Widely used in Factories discharge severely polluting commercial wastewater, Urban wastewater treatment plant drainage system, Sewage pumping station in residential areas, Civil Air Defense System Drainage Station, Wastewater discharge from hospitals and hotels, Municipal engineering and construction sites, Exploration and mine supporting auxiliary equipment etc. Medium temperature ranges is from -15°C to 60°C. This pump features a single or dual volute impeller structure, hard tungsten carbide mechanical seal, and a well- designed volute chamber. It boasts high efficiency, energy savings, vibration-free operation, automatic installation, and automatic control. It can effectively transport media containing fibers five times the pump diameter and solid particles up to 50% of the pump diameter. The mechatronic structure minimizes the installation footprint, and the motor guard design supports direct outdoor use. Its unique anti-twisting and no-clogging features excel in handling solid particles and long-fiber waste discharge.

Minimum Order: 1 bags

Round Adjustable Dies are used to cut external right hand threads. They are made with a slot in the circumference and an adjusting screw to allow for cutting a slightly smaller size. Used for cutting external right-hand threads. Technical Data: Type of thread Metric ISO-thread Standard ANSI Material Alloy Steel/HSS-G Tolerance 6g HRC 58-64 Surface Bright Finished Cutting Direction Right Thread Angle 60° Application External Thread Cutting Size Limit D E M1.6 6g 13/16 1/4 M1.8 6g 13/16 1/4 M2 6g 13/16 1/4 M2.2 6g 13/16 1/4 M2.5 6g 13/16 1/4 M2.6 6g 13/16 1/4 M3 6g 13/16 1/4 M4 6g 13/16 1/4 M5 6g 13/16 1/4 M6 6g 13/16 1/4 M8 6g 1 3/8 M10 6g 1 3/8 M10 6g 1 1/2 1/2 M12 6g 1 1/2 1/2 M14 6g 1 1/2 1/2 M16 6g 1 1/2 1/2 M16 6g 2 5/8 M18 6g 1 1/2 1/2 M18 6g 2 5/8 M20 6g 1 1/2 1/2 M20 6g 2 5/8 M22 6g 2 5/8 M24 6g 2 1/2 3/4 M27 6g 2 1/2 3/4 M30 6g 2 1/2 3/4

HSS Round Die Introduction HSS round dies are round and usually have three or more cutting edges. They are either used for manual use of die holders or clamped into the quill to use in a turning lathe. The chips are discharged through the plane holes in round dies. Round dies are used for thread processing to make external threads, such as cutting new threads or repairing old ones, also known as hexagonal dies and HSS round dies. Round dies technical data Type of thread Metric ISO-thread Standard DIN 223 (DIN EN 22568) Form Solid Version(Form B) Material HSS-G/HSS-E Tolerance 6g HRC 61-66 Surface Bright Finished Cutting Direction Right Thread Angle 60° Application External Thread Cutting What is the round die? Round dies are the thread cutting tools used for making external threads. They are round and usually have three or more cutting edges. They are either used for manual use with die stocks or clamped into the socket to use on a turning lathe. Round dies are available slotted (style A) or closed (style B), with closed being the most commonly used style.

Content: 33pcs hand tap DIN352 HSS-G, M3-20 No.1-2-3, hardness HRC61-63°, 11pcs round die, M3-20, DIN223, Form B, chamfer from both sides, 4 side-holes, hardness HRC61-63° 2pc tap wrench: DIN1814 No.1+3 6pcs round die holder: DIN225 20x5/20x7/25x9/30x11/38x14/45x18mm; 1pc screwdriver: 110mm 1pc M Internal/Outer thread 24 sheets As a distinguished internal thread cutting tool manufacturer, GSR Threads Tools takes immense pride in being a leading Tap and Die Set Factory and Tap and Die Set manufacturer, offering comprehensive threading solutions that cater to the diverse needs of industries worldwide. Each set includes a range of high-quality taps and dies, along with essential accessories such as tap wrenches, die stocks, and thread gauges, ensuring that users have everything needed for efficient threading operations. The taps in our sets are designed for precise Internal Thread Cutting, available in various types including taper taps, plug taps, and bottoming taps, each tailored to specific hole types (through holes and blind holes). The dies, on the other hand, are engineered to create accurate external threads on rods, bolts, and other cylindrical workpieces, with options for different thread pitches and sizes to meet international standards such as UNC, UNF, metric, and more.

DIN376 Machine Tap Brief Introduction Machine taps for ISO metric coarse threads are suitable for cutting internal threads with a machine. The DIN 371 version has a reinforced shank (up to M10) and the DIN 376 version has a reduced shank. Technical Data Standard DIN371/376 Material HSS-G/HSS-E Tolerance ISO2(6H) HRC 61-66 Surface Bright Finished/PVD Coating Flute Type Spiral Point Cutting Direction Right Thread Angle 60° Square DIN10 Application Internal thread cutting for through hole Since the efficiency of hand taps is low, we also offer machine taps. Here are some Machine Tapping Method and Precautions. GSR offer various types of internal thread cutting tools.

Carbon steel (Mainly refers to gcr15 in China) taps can be a good choice for certain applications, particularly for hand tapping,  threads cleaning, and repairing, but they may not be ideal for high-volume cutting or tapping on hard materials . They tend to dull more quickly than high-speed steel (HSS) taps Pros of Carbon Steel Taps: Lower Cost: Carbon steel taps are cheaper.  Good for Hand Tapping: They are suitable for manual threading, especially when cutting with soft materials like Aluminium, Brass, Plastic etc .  Effective for threads cleaning and repairing: They can be useful for rethreading damaged threads or removing burrs.  Technical Data Standard DIN 352 Material Gcr15 Surface Bright/Black Finished Flute Type Straight Cutting Direction Right Thread Metric Thread Angle 60° HRC 58-61 Both Ends Cusp In addition to hand taps, we also offer highly efficient machine taps.

LW Vertical High-Efficiency Non-Clogging Sewage Pump It is a single-suction volute pump equipped with a non-clogging, anti-clogging single (or double) large flow channel impeller, featuring excellent debris passage capability. This series of pumps features two structural forms: one with the motor and pump directly coaxial, and the other connected via a coupling, using standard vertical motors. The structural diagrams are as follows. Each structural form has two base mounting options: first, horizontal suction at the inlet with a swivel function, allowing the inlet and outlet to be arranged at 0°, 90°, 180°, or 270° according to usage requirements for convenient pipeline connections; second, axial suction at the inlet, facilitating vertical installation. With the ability to effectively pass fibers five times the pump's diameter and solid particles approximately 50% the size of the pump's diameter. The mechanical seal adopts a single-seal design, with a material of tungsten carbide known for its hardness, wear resistance, and corrosion resistance. It features durability and wear resistance, enabling safe and continuous operation for over 8,000 hours Adding a protective cover to the motor fan blade allows the entire unit to operate outdoors without requiring a machine room, significantly reducing infrastructure costs. The overall structure is compact, with a small size, low noise, significant energy- saving effects, convenient maintenance, and no need for a pump house Application The LW series non-clogging sewage pump is suitable for industries such as the discharge of severely polluted wastewater in factories and commercial buildings, sewage pumping stations in residential areas, urban sewage treatment plant pumping systems, drainage stations in civil defense systems, water supply equipment in water treatment plants, sewage discharge in hospitals and hotels, municipal engineering construction sites, auxiliary machinery in mining operations, rural biogas tanks, and farmland irrigation. It can transport wastewater and debris containing particles, as well as clean water and weakly corrosive media.

Minimum Order: 1 bags

Hand operated metering fuel oil pump ZH-100A hand-cranked metering oil pump is suitable for use in various small and medium-sized oil depots, gas stations, agricultural machinery stations, industrial enterprises, mining operations, fleets, vehicles and ships, airports, and other similar facilities. The ZH-100A manual hand-crank metering fuel pump features a compact design, with small size, lightweight, easy mobility, and simple operation. It requires only one person to continuously pump fuel by manually cranking the handle back and forth. The pump is equipped with a vertical YL-25 type 25mm metering gauge (with a resettable pointer) and can be fitted with a 1-inch fuel nozzle to control the flow at the hose outlet, preventing the waste of residual fuel in the hose during idle periods. Working Principle of [ZH-100A Manual Crank Measurement Fuel Pump]: The ZH-100A hand-cranked metering fuel oil gauge is a velocity-type instrument. It generates kinetic energy by the speed of the fluid flowing through the pipeline. When the liquid passes through the impeller housing, it drives the impeller to rotate. The rotational speed is directly proportional to the flow velocity. Through the gears on the impeller shaft, the signal is transmitted to the reduction mechanism and then to the recording device, where the pointer indicates the total flow value on the scale dial Technical parameters of ZH-100A hand cranked metering fuel pump: 1. Inlet and outlet diameter 25mm (inner diameter of rubber hose 25mm) 2. Gauge error ± 2% 3. High pressure 2Kg/cm2 4, piston stroke 90mm 5. Piston diameter 100mm 6, allowable head 15-20 meters 7. Allowable suction range of 4-5 meters and reciprocating frequency of 35-45 times/minute 9. Flow rate of 35-55 liters per minute, with a total weight of 27 kilograms

Minimum Order: 1 bags