Detailed Instructions of Choosing Pumps Part 1

According to the basic principles presented before and the basic conditions, the detailed instructions are as below: 1. According to the layout, terrain conditions, water conditions, operating conditions of the device, make sure to choose horizontal, vertical, or other types pump (pipeline, diving, liquid-type, non-clogging, self-priming, gear, etc.). 2. According to the nature of the liquid medium to determine if clear water pump, heat pump, oil pump, chemical pump/ corrosion resistant pump, trash pump or non-clog pump. Note: When pump installed in explosive areas, based on the regional level of the explosion, the corresponding explosion-proof motors should be applied. 3. According to the flow, make sure to choose single suction pump or double suction pump; according to head level, choose single stage pump or multi stage pump, or high speed pump and low speed pump (air conditioning pump). Take note that the efficiency of multi-stage pump is lower than that of single-stage pump, when both single-stage pump and multi-tage pumps can be used at the same time, the first choice is single-stage pump. 4. Choose the specific model of the pump After choosing which series of Screw Pumps are used, you can according to the maximum flow rate (in the absence of the maximum flow rate is usually desirable to 1.1 times of the normal flow rate as the maximum flow rate), take an enlarged head 5% -10%, the balance of these two properties after the main parameters to determine the specific model or series on the type spectrum characteristic curve. Operation is as follows: Using a pump characteristic curve, find the desired flow values on the horizontal axis, find the lift values on the vertical axis, up and to the right from the two values cited vertical or horizontal line, right on the intersection of two lines characteristic curves, the pump is the right choice, but this ideal situation is rare, usually run into the following two conditions: The first: the intersection is above over the characteristic curve, which shows the flow meet the requirements, but the head is not enough, in this situation, if the head is almost the same, or a difference of about 5%, you can still choose this pump, while a lot of difference, it’s suggested to select larger head pump. Or try to reduce pipeline pressure loss. The second: the intersection is at the bottom of the characteristic curve, when it’s inside of the characteristic curve trapezoidal range, you can choose this model, and then depending on difference of head, decide whether to cut the impeller diameter. If the head difference is small, do not cut, if the head a big difference, according to the desired Q and H, based on their ns and cutting formula, cut impeller diameter, if the intersection does not fall within the scope of the fan trapezoid, to select small head pump. When selecting a pump, sometimes you have to consider the production process requirements to choose different shapes Q-H characteristic curve. Honghai pump. More instructions will be updated soon.

Some Little Tips about the Oil Pump

How to ensure G mono pumps’ pressure The max output pressure of G mono pump is according to bushhing series Level1: the max working pressure is 0.6mpa Level2: the max working pressure is 1.2mpa Level4: the max working pressure is 2.4mpa Asphalt pump. The solutions of solving gear pump’s electric current too large and not working suddenly The fault phenomenon: electric current is too large The reasons of fault: a, output pressure is too high. b, the viscosity of medium is too large. c, assembly of shaft seal is wrong d, shaft or bearing is damaged. e, fault of electric motor Methods: a, check lower equipment and pipeline. b, check medium’s viscosity. c, round the gear by hand when the pump is not working, check whether the gear round smoothly. d, check electric motor. The reasons of three screw pumps doesn’t suck up oil 1.Screw and pump bush are damaged, repair or replacement spare parts. 2.Suction pipe line jams or air leakage, check the pipe line. 3.Motor is reversal or speed is lower, please change motor. 4.Valve is out of work, please adjust spring or repair valve and valve seat. The detailed introduction of high temperature thermal insulation lubrication pump This type of pump is used to asphalt mixing equipment that transfer or spray asphalt oil, this is ideal equipment to asphalt factory, it’s also appropriate to other high viscosity medium. Every models has two kinds of structure forms: one is motor connect pump with coupling (six stage motor), the other is motor connect pump with belt pulley (four stage motor) This type of pump applies to transfer the medium not including solid particle and has solidifiability under the normal temperature and temperature below 350 centigrade, like heavy oil, bitumen, glue resin, detergent and so on. It especially used for the condition that the medium required to keep heat in outdoor installation at cold region. If the pump’s material is stainless steel, it can transfer high viscosity and corrosive mediums.

The way to choose material of chemical pumps

The corrosion is one of the most dangerous harm to chemical equipment all the time, a little carelessness will damage the equipment or cause accidents and disasters. According to statistics, 60% of damages are caused by corrosion, so it’s first to choose the material of pumps. It’s a misconception that a lot of people think stainless steel is almighty. Now let’s talk about the point of choosing materials for chemical medium. Oil pumps. 1, Sulfuric acid(H2SO4)is one of the most strong corrosive medium, and it’s widely used as industrial raw materials. Different temperature and concentrations have different corrosive, if the concentration is higher than 80%,temperature is lower than 80℃ cast iron is best, but it’s not appropriate to high speed flow Sulfuric acid and not suitable to make pump valve. General stainless steel like SS304 (0Cr18Ni9) and SS316 (0Cr18Ni12Mo2Ti) are limited use to Sulfuric acid. So we often use high silicon cast iron (different processing) and high alloy stainless steel. Fluorine plastic has good ability of corrosion resistance and fluorine pump is economical. The pumps’ type is IHF fluorine plastic pump, PF (FS) centrifugal pump, CQB-F fluorine plastic magnetic pump. 2, Hydrochloric acid Most of metallic materials are not resistant to hydrochloric acid corrosion (include a lot of stainless steel materials).Molybdenum containing high silicon iron only use for the hydrochloric acid that temperature below 50centigrade concentration below 30%.On contrary, a lot of non-metallic materials have good ability of corrosion resistance, so lining rubber pumps and plastic pumps (polypropylene, fluorine plastic) are the best choose. The pumps’ type are: IHF fluorine plastic pump, PF (FS) centrifugal pump, CQ fluorine plastic magnetic pump. 3, Nitrate acid General metals are damaged in nitrate acid quickly, tainless steel is widely used, it has good ability of corrosion resistance in normal temperature and all kinds of concentration. The ability of corrosion resistance of stainless steel containing molybdenum like SS316,SS316L are not better than SS304,SS321.We often use titanium and titanium alloy materials for high temperature nitrate acid. Our pumps’ type are: DFL(W)H chemical pump, DFL(W)PH shielding chemical pump, DFCZ process pump, DFLZP self-priming chemical pump, IH chemical pump, CQB magnetic pump, the material is SS304. Honghai pump.

Basic Principles of Choosing Pumps

It’s suggested by Honghai Pumps Ltd that five basic factors should be in consideration on selecting the right pumps based on working process and drainage requirements. To be specific, they are the amount of liquid delivery, device head, fluid properties, piping layout and operation of operating conditions. 1. The flow is one of the important performance data in selecting a pump, which is directly related to production capacity and delivery capacity of the entire apparatus. Such as the Institute of Technology Design is able to calculate the general pump properly, minimum and maximum, in total three kinds of flow. When the pump is selected, based on the maximum flow rate, taking into account the normal flow, when there is no maximum flow rate, it’s suggested as the maximum flow rate is about 1.1 times of the the normal flow rate. 2. Pump head required in the device system is another important performance data in selecting pumps, generally use the enlarged 5% -10% margin to lift the selection. 3. The liquid nature of the liquid medium include names, physical properties, chemical properties and other properties, the physical properties of the temperature c density d, the viscosity u, the content of the medium diameter of solid particles and gases, etc., which involves the lift system, effective gas NPSH calculations and suitable food pump types: chemical properties, mainly referring to chemical and toxic liquid medium, is the choice of materials and the choice of what kind of pump shaft seal type important basis. 4. The piping layout condition refers to a device system liquid feed height liquid feed to the liquid-feeding distance, such as the suction side of the minimum level, the discharge side of the maximum liquid level and some data, and the specifications and the length of the pipe, the materials, pipe specifications, the number of etc., for the Department of comb head NPSH calculations and checking. 5. A lot of contents of the operation conditions, such as a liquid saturated steam power operation T P, the suction-side pressure PS (absolute), the discharge side of the container the pressure PZ, altitude, ambient temperature or continuous operation, the oil pump is a fixed position of the gap or may shift.

Pump installation and use instructions

Installation instructions 1, The quality of oil pump installation, have very important influence on stable operation and long service life of the pump, so the installation of correction work must be carried out carefully. 2, The installation height, length and diameter of pump suction pipe should be meet the calculation value to reduce unnecessary losses (such as elbow). And you must ensure that the pump at work does not exceed the allowable NPSH. 3, The suction and discharge piping should have bracket. The pump is not allowed to exeed the load of pipeline. 4, The installation of pump locations should be spacious enough, to facilitate the maintenance work. Screw oil pump. 5, During the installation process, in order to prevent debris falling into the machine, unit shall cover all holes. 6, For the newly installed pipeline, in order to prevent the pipeline in the debris into the pump, the pump should be installed in the plastic filter, and the effective cross section should be greater than the suction pipe section 2 ~ 3 times. Honghai Pump Company is a professional manufacturer to develop, manufacture all kinds of gear pump, screw pump, centrifugal pump, which takes the leading position in China. Hong Hai Pump consist mainly of R&D, engineering, trade services, which has sophisticated equipment, advanced design, production and testing means. Hong Hai Pump has a strong research and development capabilitiy. Gear pump product designing uses CAD and CAPP and international standards.The products are widely used in the national petroleum, chemical, marine, power and other fields. Hong Hai pump has a complete production system and quality assurance system,which can meet the various needs of customers.

Maintenance Tips of RY Series Heat Oil Pump

1. Jog motor, take a look at the motor rotation if it is correct. 2. Start the motor, when the RY heat pumps functioning, open export and import of vacuum gauges depending on their shows after appropriate pressure, and gradually open the valve, and check the motor load conditions. 3. If found abnormal sound conducting, the oil pump should immediately stop checking reasons. 4. RY air-cooled heat oil pump during operation, the bearing temperature cannot exceed the environmental temperature of 35 degrees, the highest temperature not exceeding 80 degrees. 5. Try to control the range of annotated RY air-cooled hot oil pump flow and head on the plate, in order to guarantee the RY air-cooled heat pump at maximum efficiency operation, to maximize energy saving effect. 6. Regular inspection of heat conducting oil pump bearings and seal wear, wear in time after a larger replacement. 7. RY air-cooled heat pump used in the winter season, parking, the lower part of the pump body to drain plug unscrew medium on the net. To prevent the heat conducting oil contains water to pump frost. 8. RY air-cooled heat pumps for long periods, the need to pump all apart, dry water, and the junction of the rotating parts coated with grease installed properly protected. 9. RY air-cooled heat pump to stop use, turn off valve, pressure gauge, and then stop the motor. 10. RY air-cooled heat pumps work in the first month, after 100 hours to replace oil after every 500 hours, change the oil once. honghai pump.

Gear pumps positioning and correction

Gear pumps positioning and correction, which means that the gear pump is placed on the basis according to the foundation's vertical and horizontal centerline in order to meet the requirements. During installation of the gear pump, for most small and medium gear pump, it will share a base with the motor. In installing, it all takes overall installation method, i.e., after completion of the above preparations, the pump and the motor frame and integrally with smooth to hang on to the base, and then look for the positive and leveling. For large gear pump, it is generally first positioning the hoisting machine and adjust the seat after a good central location and level of degree, and then pumps and motors lifting to the frame to adjust the level of the coupling shaft distance and so on. Elevation adjustment and Levelling 1) Elevation adjustment Measurement and elevation Benchmarks (commonly known as zero) of elevation relative (positive or negative) called the elevation. The elevation of the absolute elevation and relative elevation. The absolute elevation is at sea level zero, and the height difference of sea level, called the absolute elevation; relative elevation is a elevation benchmarks for zero point - when, with the benchmark height difference is called the relative elevation value. The project mainly by the relative elevation, said the habit of elevation. Elevation adjusting gear oil pump is intended to facilitate pump and pipeline connections, in general, its elevation to the center line of the shaft for measuring the t-point, calibration of the pump to the foundation level as measured on the basis of the reference, the measurement device communicating with the liquid level. For the more stringent requirements of the pump, its elevation adjustment is measured with a level. Gear pump elevation deviation should be allowed to meet the provisions of table 6 - 5. The large deviation can be adjusted through the temporary pad iron. The large deviation can be adjusted through the temporary pad iron. 2) Levelling Gear pump beginning to find the level of degree elevation can make looking after, but also at the same time, it is by adjusting the level of temporary horn to adjust its level degrees. Measure the level of precision gear pump adjustment application is 0.02mm / m level meter or accuracy of 0.05mm / m level meter, on the surface of the pump outlet flange or shaft. Horizontal split pump, can be placed in the horizontal level instrument in measuring or on the surface of the pump shaft and the inlet and outlet flange surface. Gear pumps levelness tolerance: the overall installed pumps, vertical deviation should not exceed the level of 0.1 / 1000, the level of the lateral deviation should not exceed 0.2 / 1000; For the longitudinal and transverse horizontal pumps installed disintegration deviation not greater than 0.05 / 1. Honghai pump.

Rotor oil pumps

Rotor oil pumps
1. Advanced structure
2. small volume
3. big capacity
4. low noise
5.long service life

NCB series high viscosity rotor pump adopts the internal gear principle, both inside and outside gear section close to one side, the other side is "link" two separate, gear concurrent rotation, no trapped fluid phenomenon, advanced structure, small size, large flow, low noise, long service life.

1. Capacity:1.2m3/h~150 m3/h
2. Temperature: - 50 ℃~40 ℃
If it is used for the transfer of Newtonian liquid and nun-Newtonian liquid with the viscosity of 0.02-20Pa.S in petroleum industry, chemical industry, paint industry. dye industry, food industry, grease industry and medical industry etc.

Honghai Thermal oil pump

Honghai Thermal oil pump
1. Simple structure
2. Good performance
3. Reliable operation
4. High-temperature
5. Small volume, save cost

Brief Introduction
This series of thermal oil pump is produced on the basis of air-cooled hot oil pump, which is able to resist higher temperature. It adapts high technology and works high efficiency. Under high temperature, it’s able to work steadily without any leakage. As well, water cooling system is more safe and reliable.

This water-cooled thermal oil pump is scientific-constructed, mainly for conveying liquids with high temperature, below 350℃ is acceptable. It’s suggested to transport weak corrosive fluid without any solid particles. Honghai Thermal oil pump is an ideal circulating pump.

As for the corrosion resistance ability and temperature, the material of the relevant spare parts determines.

Capcacity: 1-500m3/h
Temperature: -20℃-350℃
Head: 10-125m
Theory: Centrifugal Pump

 

Feature
1. Honghai water-cooled thermal oil pump is the second generation thermal oil pump based on the overseas water-cooled thermal oil pump. The basic structure is single grade cantilever type.

2. It’s double end ball bearing supporting. The former end adapts lubricating oil, and the latter end uses grease. In the middle, there is an oil guiding pipe for the purpose of observation of sealing situation and recycle the thermal conductive oil.

                                                                                                     
3. It adapts self-thermal dissipation structure, which changes the traditional construction and enables simple structure, small volume, cost saving, and reliable working.

4. PTFE, the third generation of Polytetrafluoroethylene is used for lips sealing, which greatly improve the sealing property, about 25 times reliable than the rubber sealing.

The materials contacting the liquids are mainly 1.HT200；II.ZG230-450；III.1Cr18Ni9Ti，OCr18Ni12-Mo2Ti.

 

Application
Now you can see that Honghai thermal oil pumps are widely used in many areas like petrol, chemistry, rubber, plastics, pharmacy, textile, printing and dyeing, food and road construction.

To be specific, please check below:

1. Petroleum Industry
2. Chemical Industry
3. Pharmacy and Health
4. Environmental and Water treatment
5. Electroplating industry
6. Environmental protection
7. Food service industry
8. Printing and dyeing area
9. Textile industry, etc

 

 

 

 

Technical Data

Model	Capacity m3/h	Lift m	Speed r/min	Power kw		Efficiency η%	Motor-Y
				Shaft  power	Power  Distribution
15-15-100	3	10	2800	0.45	0.75	20	801
15-15-100A	2	10	2800	0.36	0.55	18	AO2-7122
15-15-100B	1	10	2800	0.2	0.37	15	AO2-7112
20-20-100	1	10	2800	0.09	0.37	26	AO2-7112
20-20-125	1.5	22	2800	0.22	0.75	30	801
40-25-160	10	28	2900	1.72	2.2	45	90L
25-25-160	3	27	2900	0.53	1.5	30	90S
32-32-160	6	28	2900	0.85	1.5	50	90S
50-32-160	12.5	30	2900	1.90	3.0	57	100L

 

Honghai Pump can be used in different areas, so there are bitumen pump, sanitary pump, food pump, hot oil pumps, fuel pump, fuel gear pump and diesel pump. Feel free to contact us.

ZYB Series Booster Fuel Pump

ZYB Series Booster Fuel Pump
Advanced structure 
small volume 
big capacity 
low noise 
long service life

Honghai ZYB series booster fuel gear pump is our company developed new type product. At present domestic fuel oil alternative products, product quality is uneven, common fuel pump or pump imported already can not adapt to the situation,In view of the situation, our company according to international advanced level and the actual situation of domestic fuel, designed the this new product. After many users use, the effect is very significant, successfully replaced the imported products and the ordinary pump products

(1) ZYB series the ignition fuel pump, booster fuel gear pump suitable for transferring diesel, heavy oil, residual oil, fuel oil and medium can be used for fuel. Especially suitable for road and bridge engineering mixing station and power plant burners of the fuel pump. The product has the characteristics of high hardness, wear resistance, adjustable pressure. It is ideal product for replacing the import pump. According to different burners’s features in different country, this product have two types: 4.0Mpa and 2.5Mpa.Seal have graphite sealing and mechanical seal for customer’s choice.

(2)ZYB series booster fuel pump is not suitable for transferring highly volatile or low flash point of the liquid, such as ammonia, benzene, etc.

(3)ZYB series booster fuel pump if transfer liquid such as gasoline, must indicate in order.

(4) Winter construction, in order to prevent the transmission of oil solidification causes the damage of the fuel pump, our factory also produces BZYB series insulation booster pump, heating medium can use thermal oil, steam or hot water.

Transfer gasoline, diesel, heavy oil，residual oil, fuel oil
Capacity:3-800m3/h

Would you like to know products, please check http://www.chinaoilpumps.com/products/.

 

Solution of entrap phenomenon of Gear Pump

Solution of entrap phenomenon of Gear Pump

As for gear pump , in order to work smoothly, the gear meshing of the coincidence degree must be greater than 1, so there are always two pairs of gears mesh at the same time, and some of the oil is trapped between two pairs of teeth surrounded by a closed cavity.

The close cavity started to decrease gradually as the gears rotate, then gradually increase. Closed chamber will reduce, which will extrude the trapped oil and cause high pressure, and then the oil will be extruded from the gap, resulting in heating oil, which will cause extra load for the spare parts; While at the same time, the closed cavity volume increases and caused a partial vacuum, so that the gas dissolved in oil separation, which causes a sudden formation. All of these above will cause a strong vibration and big noise, this is called entrap phenomenon.

The harm
When the gear oil pump radial unbalanced force is large, the shaft will be bended, and the tooth top contact with the casing, which will accelerate the bearing wear and reduced the bearing life.

The method of eliminating
The common method to eliminate the entrap phenomenon is to open the unloading groove on both sides of the cover plate, so that the closed cavity volume decreases by unloading groove and pressure oil cavity discharge on the left, the volume increases by the right side of the unloading groove and communicated with the oil absorption cavity.

Honghai will explain more info of using gear pumps and the related instructions. Keep focusing on our news and we will update soon.

Honghai CB Series Heavy Oil Pump

Honghai CB Series Heavy Oil Pump

 

Brief Introduction
In the process of gear tooth surface has no relative sliding, 
so no tooth wear, balanced running, no trapped fluid phenomenon, 
low noise, long service life, high efficiency. 
With the certification of ISO and SGS

CB-B gear pump is a rotary pump on the pump cylinder and the gear between the formation of the work of the volume change and move the transmission so that pressurized liquid or. By the two gear, pump body and cover form a closed space before and after two, when the gear rotates, the gear off the side of the space volume increases, the formation of the vacuum, the liquid is inhaled, gear side space volume from big to small, while the liquid into the pipeline to. Inhalation chamber and discharge chamber is by two gears meshing lines separated. Gear pump outlet pressure depends on the size of the pump source of resistance.
Application
It is widely used for speed reducer, 
It transmission machinery, gear box and other machinery lubrication, compact structure, 
It is beautiful appearance, 
It convenient installation and maintenance. 
Technical data

Honghai is also producing special pumps especially used in specific area, such as bitumen pump, food pump, fuel gear pump and diesel pump, etc..

Honghai Pump Co., Ltd will keep working for you.