Material selection of lobe rotor pump

There are four material options for SAIKEN lobe rotor pumps.
Rubber-coated materials, stainless steel, copper, and steel materials, among which rubber-coated materials and stainless steel materials are more commonly used. From the perspective of the maturity of the application process, the medium containing sewage, slop oil and particulate matter in the petroleum and petrochemical industry is suitable for lobe pumps with rubber-coated rotors.
This type of rotor is distinguished from the choice of material. According to the chemical characteristics of the medium when the lobe rotor pump is selected, it can be divided into three types: fluorine rubber, nitrile rubber, and EPDM. These three rubber rotors have many practical applications and stable performance, which fundamentally solves the customer’s application problems. There is another point on how to choose the three kinds of rubber materials. From the outside, the rubber is all the same color. How to distinguish it.
Let’s take fluorine rubber and nitrile rubber as examples. There are three main points intuition from the color: Viton is reinforced with carbon black with a large particle size, so the color is gray, and nitrile rubber is reinforced with N770 carbon black with a small particle size, so the color is black and bright. From the perspective of specific gravity: the specific gravity of fluorine rubber is 1.9, and the specific gravity of nitrile is 1.3. Combustion method: fluorine rubber will not burn and has a light odor; nitrile rubber will burn and has a strong odor.
The lobe rotor pump relies on two synchronous anti-rolling rotors to generate suction (vacuum) at the inlet during the rotation, and then suck the material to be transported. The two rotors divide the rotor chamber into several small spaces, and work according to the order of ABCD; when working to position A, only chamber I is filled with medium; when it is in position B, part of the medium is closed in chamber B. When in position C, chamber A Part of the medium is also closed in the middle; when it reaches the position D. Room A and Room B communicate with Room II, and the medium is transported to the discharge port.
feature of product
Pump rotor: choose nano-composite wear-resistant rubber rotor, resistant to dry work, idling for more than 60 minutes, the pump body is sturdy and durable, long life; anti-air resistance skills: self-priming height can reach 9 meters, horizontal self-priming can reach more than 100 meters , No need for drainage tank pump. The gas-liquid self-adaptive integrated box can effectively eliminate the gas resistance and cavitation in the process of pumping (100 meters self-priming), so that the pump equipment has the functions of pump and compressor for gas and liquid transport.
Gas-liquid two-phase sealing skills: use special mechanical seals developed by well-known domestic mechanical seal experts. The sealing surface has a common structure, smooth and abundant, no air resistance, and sufficient cooling medium convection, which can effectively avoid dry grinding, high temperature, cracking, and failure of the sealing surface. Ensure that the pump unit is working properly. No clogging, strong flowability: general plastic bags, woven bags, sand, mud, hair and other sundries will not affect the operation of the pump.
Integrated integrated control system: The embedded system selected by the project develops an intelligent control system to complete intelligent monitoring.
The structure of the lobe rotor pump is completely symmetrical, so the delivery direction of the pump is reversible. Especially in the petroleum and petrochemical industry’s product oil loading and unloading truck stations, tank bottom oil sweeping pump stations, this feature is very useful and can help customers solve cost problems. The introduction of the working principle is interspersed with the introduction of the characteristics. Below, I will give a brief explanation of the main characteristics. Because when purchasing pump equipment, after looking at the working principle and characteristics, it is more important to judge from the application performance.
lobe rotor pump manufacturers and suppliers

Scope of application of rotor lobe pump

SAIKEN rotor lobe pumps are used for conveying many media. Foods include rice milk, noodles, honey, syrup, eight-treasure porridge, hot pot base, hot sauce, sweet noodle sauce, maltose, chocolate, peanut butter, sesame sauce, etc.
Daily necessities include shampoo, laundry detergent, facial cleanser, hand cream, lotion and so on. There are other medicines, petroleum jelly, glucose and so on.
We will choose the appropriate model of the cam rotor pump according to the viscosity of different materials and the required flow rate. The material is 304/316L stainless steel, and the round steel is directly CNC processed, which is truly sanitary. The reducer can be equipped with a gear reducer and a stepless speed regulating motor. According to the requirements of the working conditions, you can choose whether to use a speed regulating motor. There are stepless speed regulating motors and variable frequency speed regulating motors. The cam rotor pump is suitable for transporting high-viscosity, soft particles, gas-liquid-solid mixed colloidal materials, and effectively guarantees that the physical and chemical properties of the materials will not be changed, and the quality of the original materials will not be affected.
Rotor lobe pump manufacturers and suppliers

Material selection of lobe rotor pump

There are four choices of materials for the lobe rotor pump.
Rubber-coated materials, stainless steel, copper, and steel materials, among which rubber-coated materials and stainless steel materials are more commonly used. From the perspective of the maturity of the application process, the medium containing sewage, slop oil and particulate matter in the petroleum and petrochemical industry is suitable for lobe pumps with rubber-coated rotors.
This type of rotor is distinguished from the choice of material. According to the chemical characteristics of the medium when the cam rotor pump is selected, it can be divided into three types: fluorine rubber, nitrile rubber, and EPDM. These three rubber rotors have many practical applications and stable performance, which fundamentally solves the customer’s application problems. There is another point on how to choose the three kinds of rubber materials. From the outside, the rubber is all the same color. How to distinguish it.
Let us take fluorine rubber and nitrile rubber as examples. There are three main points intuition from the color: Viton is reinforced with carbon black with a large particle size, so the color is gray, and nitrile rubber is reinforced with N770 carbon black with a small particle size, so the color is black and bright. From the perspective of specific gravity: the specific gravity of fluorine rubber is 1.9, and the specific gravity of nitrile is 1.3. Combustion method: fluorine rubber will not burn and has a light odor; nitrile rubber will burn and has a strong odor.
The cam rotor pump relies on two synchronous anti-rolling rotors to generate suction (vacuum) at the inlet during the rotation, and then suck the material to be transported. The two rotors divide the rotor chamber into several small spaces, and work according to the order of ABCD; when working to position A, only chamber I is filled with medium; when it is in position B, part of the medium is closed in chamber B. When in position C, chamber A Part of the medium is also closed in the middle; when it reaches the position D. Room A and Room B communicate with Room II, and the medium is transported to the discharge port
feature of product:
Pump rotor: choose nano-composite wear-resistant rubber rotor, resistant to dry work, idling for more than 60 minutes, the pump body is sturdy and durable, long life; anti-air resistance skills: self-priming height can reach 9 meters, horizontal self-priming can reach more than 100 meters , No need for drainage tank pump. The gas-liquid self-adaptive integrated box can effectively eliminate the gas resistance and cavitation in the process of pumping (100 meters self-priming), so that the pump equipment has the functions of pump and compressor for gas and liquid transport.
Gas-liquid two-phase sealing skills: use special mechanical seals developed by well-known domestic mechanical seal experts. The sealing surface has a common structure, smooth and abundant, no air resistance, and sufficient cooling medium convection, which can effectively avoid dry grinding, high temperature, cracking, and failure of the sealing surface. Ensure that the pump unit is working properly. No clogging, strong flowability: general plastic bags, woven bags, sand, mud, hair and other sundries will not affect the operation of the pump.
Integrated integrated control system: The embedded system selected by the project develops an intelligent control system to complete intelligent monitoring.
The structure of the lobe rotor pump is completely symmetrical, so the delivery direction of the pump is reversible. Especially in the petroleum and petrochemical industry’s product oil loading and unloading truck stations, tank bottom oil sweeping pump stations, this feature is very useful and can help customers solve cost problems. The introduction of the working principle is interspersed with the introduction of the characteristics. Below, I will give a brief explanation of the main characteristics. Because when purchasing pump equipment, after looking at the working principle and characteristics, it is more important to judge from the application performance.
Lobe pump manufacturers and suppliers

Scope of application of cam rotor pump

SAIKEN Pump Industry will introduce to you the scope of application of cam rotor pumps:
Cam rotor pumps are used to transport many media. Foods include rice milk, noodles, honey, syrup, eight-treasure porridge, hot pot base, hot sauce, sweet noodle sauce, maltose, chocolate, peanut butter, sesame sauce, etc.
Daily necessities include shampoo, laundry detergent, facial cleanser, hand cream, lotion and so on. There are other medicines, petroleum jelly, glucose and so on.
We will select the appropriate model of cam rotor pump according to the viscosity of different materials and the required flow rate. The material is made of 304/316L stainless steel, and the round steel is directly CNC processed, which is truly sanitary. The reducer can be equipped with a gear reducer and a stepless speed regulating motor. According to the requirements of the working conditions, you can choose whether to use a speed regulating motor. There are stepless speed regulating motors and variable frequency speed regulating motors. The cam rotor pump is suitable for conveying high-viscosity, soft particles, gas-liquid-solid mixed colloidal materials, and effectively guarantees that the physical and chemical properties of the materials will not be changed, and the quality of the original materials will not be affected.
Lobe pump manufacturers and suppliers

Cam rotor pump and its product features

The rotor lobe pump manufacturer is a positive displacement pump with no valve volume, which meets the API676 standard, has no blockage, is forced to self-prime, reversing, corrosion and wear resistance, and gas-liquid-solid mixing. The non-block rotary pump is a fluid machine used in industrial production or other related fields to change the fluid pressure in the volume or convey the medium. No blocking? The lobe rotor pump converts the energy transferred from the engine into medium pressure energy. The present invention is a new type of positive displacement pump. The non-blocking rotary pump is developed based on the production requirements of many industries such as petroleum, chemical industry, paint, dyes, food, grease, medicine, etc., manufactured and improved?

In the design, production and manufacturing process of high-pressure lobe pumps, different materials and structures are selected according to the situation, which can adapt to the different properties of materials and media? In single-stage single-pump manufacturers, whether in station installation or mobile design, according to the action The conditions can choose 1 to 1 zero parts. 1. Rotor: Fluorine rubber (FPM), EPDM, NBR, brass 2. Pump housing: spheroidal graphite cast iron stainless steel 3. Pump housing protection lining: high-strength steel, silicon carbide 4? Shaft seal device: single mechanical seal: SISIC (silicon carbide), chilled cast iron, auxiliary seal can have any kind of rubber material/tungsten carbide single-agent industrial centrifugal pump, can be easily made into materials with high output pressure, suitable for long distances .

High-resistance quantitative delivery. Before introducing the precautions for using the cam switch pump, make sure to use the cam switch pump. What is the correct maintenance method? To extend the rotation of the cam, it is necessary to understand proper maintenance methods. The service life of the auxiliary pump. What are the characteristics of abrasion resistance of today’s and double mechanical seals and other materials of the multi-seal cam type double-reversing pump products? Fully covered rubber rotor, there are pressure, vibration, wear and corrosion in the working environment of non-blocking rotary pump rotor; rubber is a polysilicon compound material, which has strong resistance to AC pressure, shear and tear, and can be selected appropriately The rubber material is selected appropriately. In addition, in order to avoid corrosion of the medium, the pump is not blocked at low speeds.

Arc gear cam rotor pumps usually run at low speeds. In the case of sludge medium, the operating speed of the rotor is 300? Control between 360rpm. This can extend the life of the rotor. It produces good self-energy absorption at 200-40 strong self-inspiration at 0 rpm. Compact design and grounding installation. The overcurrent chamber of the pump without clogging the non-choke door has no clogging problem. Depending on the type of pump, a maximum of 70 mm of particulate matter (fibrous material) can be passed through. It is possible to directly replace the rubber rotor and other circulation parts of the easy-to-maintain sludge rotary pump
Cam rotor pump manufacturers and suppliers

Instructions for the use of stainless steel rotor lobe pumps

Precautions before starting: Check whether the oil quantity in the gearbox of the rotor lobe pump is normal or not, observe the transparent oil mark, the oil quantity should be half of the oil mark window, and the lubricating oil should be replaced regularly. Generally, after 4000 hours of operation All need to be replaced. Before starting, open all the inlet and outlet valves of the pipeline. When the medium flows into the cavity, turn the lobe pump by hand and there is no abnormality, you can start the operation first, confirm the rotation of the rotor lobe pump and the flow of the medium, and then start the formal operation. It is strictly forbidden to run without the pump . When the rotor lobe pump reaches the normal speed, observe the pressure index of the pump. When the pump installation position has a suction lift requirement, the inlet pipe of the pump and the pump cavity should be filled with materials. When the process requires heating or cooling of the medium, the heating or cooling device should be turned on before the pump is turned on. Half of the heating energy is turned on 10 minutes in advance, and then the pump is turned on. Equipped with a cooling water mechanical seal pump, the cooling water must be turned on before starting up, and there is no cut-off phenomenon after starting up, otherwise the mechanical seal will be damaged immediately.
1. Run:
2. When the rotor lobe pump is in operation, pay attention to the motor power and pump operation. If there is an abnormality, stop the pump to find the cause.
3. The mechanical seal should be free from leakage or heat generation.
4. For pumps with packing seals, 1 to 3 drops per minute are allowed. If the leakage increases, the material ring can be pressed tightly without disassembly.
5. When using a mechanical continuously variable transmission, the speed will be gradually adjusted according to the digital display speed after the machine is turned on. It is strictly forbidden to turn the speed control plate when the machine is stopped, otherwise the stepless speed reducer will be damaged.
6. Two methods of manual frequency regulation and automatic control can be used for speed regulation by frequency converter.
7. Frequently check the heating of the pump and motor. When the pump is in a water-cooled state, the bearing temperature rises to 40°C. When the pump is in the state of hot water insulation, the temperature of the bearing housing is allowed to be 30°C higher than the temperature of the pump body.
8. The valve of the inlet pipeline cannot be used to adjust the flow rate to avoid the vibration of the pump caused by cavitation.
9. When the pump is running, it is strictly forbidden to close the inlet and outlet valves.
10. Stop:
11. Stop the pump and close the inlet and outlet valves to clean up easily condensed materials.
12. After the rotor lobe pump is out of service for a long time, the coupling should be turned by hand before it is started. The hand feels resistance, but it can be rotated at will and the weight is even. And pay attention to distinguish whether there are frictional noises and foreign objects in the pump.
13. When the rotor lobe pump and the geared motor are re-installed, the coaxiality of the pump shaft and the motor shaft should be checked, and the upper, lower, left and right positions of the outer circle of the coupling should not exceed 0.1mm, otherwise it will cause the rotor lobe pump Vibration affects the life of the spindle.
  Lobe pump manufacturers and suppliers

Product features of lobe rotor pump

The lobe rotor pump is a multi-purpose two-way positive displacement pump manufactured by foreign advanced technology, BV series colloid pump-also known as Roots pump, SUS rotary lobe pump. The lobe pump adopts two synchronously moving rotors. The rotor is driven by an external synchronous gearbox. The rotor rotates synchronously in opposite directions under the drive of the drive shaft, thereby forming a higher vacuum and discharge pressure, which is especially suitable for medical grade Transportation of medium and corrosive high-viscosity medium. Cam rotor pumps are widely used in petrochemical, fine chemical, daily chemical, pharmaceutical, food, environmental protection, papermaking, coating, metallurgical and other industries.
The cam rotor pump has a certain gap between the rotor and the rotor, no friction coefficient, and long service life. Simple assembly and disassembly, convenient maintenance and cleaning, and few wearing parts. High efficiency and energy saving, stable transportation, low failure rate, reliable sealing and low noise. It can ensure the reliability of continuous operation and no leakage time. After using special materials, the screw pump can transport sludge, sewage and other media containing solid particles. The transportable medium viscosity is ≤500000cp, and the slurry with a solid content of 70%. It can transport mixed materials of vapor, liquid and solid three-phase flow. After the inverter is configured, the flow can be adjusted at will, and it can be used as a general metering pump. According to user needs, a heat preservation device can be added to the pump casing. Applicable temperature -50℃～350℃. According to the user’s connection requirements, the comparison of flange type, screw type, and quick interface type lobe rotor pumps are selected.

Lobe pump manufacturers and suppliers

NYP high viscosity pump description

NYP high viscosity pump description:
1.NYP gear pump is especially suitable for the transportation of high-viscosity consistency media, and is widely used in the transportation industry of various fluids, especially for handling fluid transportation with large viscosity changes and a wide range.
2. There are two kinds of ordinary cast iron material and stainless steel material.
3.The pump head, pump housing, and sealed cavity can all be equipped with insulation jackets, and select the location that needs to be insulated according to actual needs.
4. The jacket and the pump body are cast as a whole, and the heat preservation effect can avoid various problems caused by the welding jacket.
5.When heating is required: heat preservation can be carried out by passing various heat media such as hot steam, heat transfer oil and so on into the jacket cavity.
6.When cooling is required: through various coolants, the constant temperature of the pump body can be maintained.
7. Adjustable clearance: The pump can adjust the gear clearance according to the need of viscosity, without disassembling the pump, to meet the process requirements of the pump at different viscosities. The big advantage of the integral bearing box is that the clearance can be adjusted by only turning the bearing box. , The operation is simple, no need to disassemble any parts of the pump.
8.The outer rotor drives the inner rotor to rotate in the same direction, with little wear and long service life.
9. Application industry: suitable for transporting pure and viscous fluids, can be used to transport oil products such as lubricating oil, crude oil, etc., can also be used to transport molasses, polyurethane, black and white materials, rubber, asphalt, paint, adhesives, dyes , Coatings, lubricants, polyols, food, pharmaceuticals and other high-viscosity materials without particulate impurities, can also be used to transport PA PB PC PE PS HIPS ABS PP PET PVA and other high-temperature, high-viscosity polymer melt materials.
NYP high viscosity gear pump manufacturer and supplier

Introduction to NYP High Viscosity Gear Pump

Introduction to NYP High Viscosity Gear Pump:

NYP series ordinary (stainless steel) inner ring SUS high-viscosity pumps are especially suitable for the transportation of high-viscosity consistency media. It is widely used in the transportation industry of various fluids, especially for the transportation of fluids with large changes in viscosity and a wide range. There are two kinds of ordinary cast iron material and stainless steel material. The pump head, pump housing, and sealed cavity can all be equipped with thermal insulation jackets. You can also choose the location that needs heat preservation according to actual needs. The jacket and the pump body are cast as a whole, and the heat preservation effect can avoid various problems caused by the welding jacket. When heating is needed: heat preservation can be carried out by passing various heat media such as hot steam and heat transfer oil into the jacket cavity. When cooling is required, the constant temperature of the pump body is maintained through various cooling liquids.
Adjustable clearance: high-viscosity pumps can adjust gear clearances according to viscosity requirements without disassembling the pump, which can meet the process requirements of pumps at different viscosities. The big advantage of the integral bearing box is that the gap adjustment can be realized only by rotating the bearing box, the operation is simple, and there is no need to disassemble any parts of the pump. After the high-viscosity pump is worn for a long period of time, the internal clearance of the pump can be adjusted by rotating the bearing box and adjusting bolts without disassembling the pump, and the actual effect of the adjusted high-viscosity pump is the same as that of a new pump. The outer rotor drives the inner rotor to rotate in the same direction, with little wear and long service life. Application industry: suitable for transporting pure and viscous fluids, can be used for transporting oil products such as lubricating oil, crude oil, etc.; can also be used for transporting molasses, polyurethane, black and white materials, rubber, liquid wax, chlorinated paraffin, asphalt, paint, Adhesives, dyes, coatings, lubricants, polyols, foods, pharmaceuticals and other high-viscosity materials without particulate impurities; can also be used to transport PA, PB, PC, PE, PS, HIPS, ABS, PP, PET, PVA and other high-temperature, high-viscosity polymer melt materials.
High-viscosity pump Magnetic pump, magnetic drive high-viscosity pump, high-viscosity pump is widely used in various high-viscosity resins, polymers and other occasions. Magnetic drive, zero leakage, no leakage for life. SAIKEN pump has the characteristics of large flow, low pulsation, long life, and wide delivery range. It is a product in the industries of polyester, polyether, asphalt, molasses, and plastics.
NYP high viscosity gear pump manufacturer and supplier

NYP high viscosity gear pump product overview

NYP high viscosity gear pump product overview:
NYP gear pump is a new type of positive displacement pump developed according to the needs of petroleum, chemical, paint, grease, medicine, dyes, food and other industries. Because the product can choose different materials and structures, it is widely used in different properties. Transport of media with different viscosities.
Applicable medium temperature: -10°C -200°C (Note: Non-leakage high-viscosity magnetic pumps can be customized according to customer requirements for different working conditions)
Applicable medium viscosity: 1.0cSt—300,000cSt
Advantages of NYP type high viscosity internal gear pump:
(1) The conveying liquid is stable, without pulsation, small vibration and low noise.
(2) Some self-priming performance.
(3) The correct selection of parts materials can transport a variety of corrosive media
Structural features:
(1) Working principle
The drive gear (outer rotor) with internal teeth drives the inner rotor to rotate in the same direction in the fully enclosed pump body. The pump body and the crescent plate of the front cover separate the suction port and the discharge port. When it rotates, negative pressure is formed at the suction port, the liquid is sucked in, and the rotor takes the liquid to the discharge port, and discharges the pump body under pressure to complete the liquid delivery.
(2) Structure
NYP high viscosity pump is mainly composed of inner and outer rotor, shaft, pump body, front cover, seal, bearing, etc. There are two types of mechanical seal and packing seal (required, magnetic drive, zero leakage structure can be selected). For high temperature, high viscosity and strong corrosive media, packing seal is selected.
When conveying materials that are easy to crystallize, the front cover and pump body can be designed with thermal insulation jackets, which can be heated and melted by steam during operation. The pump can be equipped with a valve. When the pump or piping system is overpressured, the valve opens to form an internal return flow.
The pump unit consists of a pump, a motor and a base. There are two types of transmission: bridge type and direct connection type.
Seen from the motor end to the pump, it rotates clockwise.
NYP high viscosity gear pump manufacturer and supplier