What are the advantages and disadvantages of using gear pumps?

What are the advantages and disadvantages of using gear pumps?
by

1 Answer

Answer :

Gear pumps are a type of positive displacement pump that are appropriate for pumping relatively high  pressures and low capacities. Advantages include the ability to handle a wide range of viscosities, less  sensitivity to cavitation (than centrifugal style pumps), relatively simple to maintain and rebuild.  Disadvantages can include a limited array of materials of construction due to tight tolerances required,  high shear placed on the liquid, and the fluid must be free of abrasives. Also, note that gear pumps must  be controlled via the motor speed. Throttling the discharge is not an acceptable means of control.
by

Related questions

What are the advantages and disadvantages of using breast pumps?

Description : What are the advantages and disadvantages of using breast pumps?

Last Answer : There are many different advantages and disadvantages when it comes to have a breast pump. It could be good so that you can empty the milk in the bottle and take it on the go and it also could be very painful.

Ramesh is a student of standard X. He organized many activities in his school to convey the students about the various advantages and disadvantages of using renewable and non-renewable sources of energy. Many students of the school took part and concluded about the best choices of energy sources on this basis. Answer the following questions: (i) What activities Ramesh might have had assigned for the students? (ii) Name any two renewable sources of energy. (in) Which two values are reflected in Ramesh’s thought and action? -Science

Description : Ramesh is a student of standard X. He organized many activities in his school to convey the students about the various advantages and disadvantages of using renewable and non-renewable sources of energy. Many ... of energy. (in) Which two values are reflected in Ramesh's thought and action? -Science

Last Answer : (i) Activities that Ramesh have had assigned for the students are: (a) Hands on projects related to renewable and non-renewable sources of energy. (b) Photograph exhibitions on the topic ... of renewable source of energy. Ramesh’s action: Concern for community advantage and good management.

What are the advantages and disadvantages of using a silicon made bong instead of a standard glass bong?

Description : What are the advantages and disadvantages of using a silicon made bong instead of a standard glass bong?

Last Answer : So, glass is cheaper and more breakable than silicone, but it's also cleaner. While silicone is virtually indestructable and very flexible (and easy to hide in most places), sometimes the silicone ... would consider a bigger advantage or disadvantage based on what you are looking for in a bong.

What are the advantages and disadvantages of employing the using directive?

Description : What are the advantages and disadvantages of employing the using directive?

Last Answer : The using-directive is often confused with a using-declaration. A using-declaration adds a given name to a local scope whereas a using-directive does not; it simply makes names accessible in the scope ... that can lead to some very obscure or subtle errors that would be difficult to track down.

What are the advantages and disadvantages of sparse matrix using array?

Description : What are the advantages and disadvantages of sparse matrix using array?

Last Answer : Feel Free to Answer

what are the advantages and disadvantages of using inbound call center services for big businesses?

Description : what are the advantages and disadvantages of using inbound call center services for big businesses?

Last Answer : Some of the advantages of using inbound call center services is that it saves valuable time and resourses and it also boosts sales. Some of the disadvantages are that sometimes you don't end up with the most skilled or business like conduct or services as you would like to have.

What are the advantages and disadvantages of using contact lens?

Description : What are the advantages and disadvantages of using contact lens?

Last Answer : Some of the adventages are wider field of view and better with asymmetrical prescriptions. Some of the disadvantages are high maintenance costs and long time required for fitting and adaptation.

What are the cloud computing advantages and disadvantages of using it?

Description : What are the cloud computing advantages and disadvantages of using it?

Last Answer : An advantage of cloud computing is to be able to access this product from multiple locations. A disadvantage is that cloud computing is harder to secure.

What are some advantages and disadvantages for using a professional party planner for an engagement party?

Description : What are some advantages and disadvantages for using a professional party planner for an engagement party?

Last Answer : There are many disadvantages and advantages to hiring a party planner. The advantage is that you do not have to do any of the work. The disadvantage is that a professional is very expensive.

Briefly discuss the advantages and disadvantages of using typed DataSet objects.

Description : Briefly discuss the advantages and disadvantages of using typed DataSet objects.

Last Answer : Typed DataSet objects allow you to work with data that is represented as members of the .NET common type system. This allows your applications to be aware of the types of data returned in a DataSet and serves ... if you do not know the structure of your data, and can be used with any data source. 

Describe Briefly The Advantages And Disadvantages Of Using Plastic And Timber Fenders?

Description : Describe Briefly The Advantages And Disadvantages Of Using Plastic And Timber Fenders?

Last Answer : Answer : The advantages and disadvantages of using plastic fenders are as follows: Plastic fenders are low in strength with a relatively high resistance to abrasion. Plastic fenders are resistant ... of contact. Also since they are made from recycled material they are environmental friendly.

Draw and explain temperature measurement using RTD. State its advantages and disadvantages.

Description : Draw and explain temperature measurement using RTD. State its advantages and disadvantages.

Last Answer : https://youtu.be/rYcglFW4y0I

Explain the advantages and disadvantages of using memory I/O and standard I/O.

Description : Explain the advantages and disadvantages of using memory I/O and standard I/O.

Last Answer : Memory mapped I/O and standard I/O are the two methods for communicating microprocessor with peripherals. Processor talks to both memory and peripheral using the same bus.Two ways to talk to a peripheral. ... of standard I/O is no loss of memory addresses to the use as I/O addresses.

Using an organic fluid that boils at a low temperature means that energy could be regeneratedfrom waste fluids is known as ________. a) Heat exchanger b) Heat remover c) Heat pumps d) Heat absorber`

Description : Using an organic fluid that boils at a low temperature means that energy could be regeneratedfrom waste fluids is known as ________. a) Heat exchanger b) Heat remover c) Heat pumps d) Heat absorber

Last Answer : Heat pumps

Which of the following vacuum pumps operates by using a very cold surface to trap the gases on the cold surface? Is it a: w) sublimation pump x) turbo pump y) cryopump z) diffusion pump.

Description : Which of the following vacuum pumps operates by using a very cold surface to trap the gases on the cold surface? Is it a: w) sublimation pump x) turbo pump y) cryopump z) diffusion pump.

Last Answer : ANSWER: Y -- CRYOPUMP

Water is a better coolant than a gas (like CO2 , He, N2 etc.), because it (A) Is a better neutron moderator as well (B) Require comparatively smaller pumps and heat exchanger for a given heat transfer rate (C) Has a better heat transfer characteristics, and it can be pressurised to attain a high temperature (D) All (A), (B) and (C)

Description : Water is a better coolant than a gas (like CO2 , He, N2 etc.), because it (A) Is a better neutron moderator as well (B) Require comparatively smaller pumps and heat exchanger for a given heat transfer rate ... , and it can be pressurised to attain a high temperature (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Rubber lined pumps can be used to pump (A) Caustic soda (B) Chlorinated brine (C) Hypochlorous acid (D) All (A), (B) and (C)

Description : Rubber lined pumps can be used to pump (A) Caustic soda (B) Chlorinated brine (C) Hypochlorous acid (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

. In a backward feed multiple effect evaporator (A) Feed is introduced in the first effect (B) Feed flows from low pressure to high pressure (C) No pumps are required between successive effects (D) None of these

Description : . In a backward feed multiple effect evaporator (A) Feed is introduced in the first effect (B) Feed flows from low pressure to high pressure (C) No pumps are required between successive effects (D) None of these

Last Answer : (B) Feed flows from low pressure to high pressure

In a forward feed multiple effect evaporator unit (A) Viscosity of liquid is highest in first effect (B) Transfer from effect to effect is done by pumps (C) No pump is required to withdraw the product from the last effect (D) None of these

Description : In a forward feed multiple effect evaporator unit (A) Viscosity of liquid is highest in first effect (B) Transfer from effect to effect is done by pumps (C) No pump is required to withdraw the product from the last effect (D) None of these

Last Answer : (D) None of these

Which of the following produces maximum pressure difference for transportation of gases? (A) Vacuum pumps (B) Blowers (C) Fans (D) Compressors

Description : Which of the following produces maximum pressure difference for transportation of gases? (A) Vacuum pumps (B) Blowers (C) Fans (D) Compressors

Last Answer : (D) Compressors

Multistage centrifugal pumps are generally used for (A) High head (B) Low head but high discharge (C) Highly viscous liquid (D) Slurries of high solid concentration

Description : Multistage centrifugal pumps are generally used for (A) High head (B) Low head but high discharge (C) Highly viscous liquid (D) Slurries of high solid concentration

Last Answer : (A) High head

Reciprocating pumps compared to centrifugal pumps (A) Deliver liquid at uniform pressure (B) Can handle slurries more efficiently (C) Are not subject to air binding (D) Can be operated with delivery valve closed

Description : Reciprocating pumps compared to centrifugal pumps (A) Deliver liquid at uniform pressure (B) Can handle slurries more efficiently (C) Are not subject to air binding (D) Can be operated with delivery valve closed

Last Answer : (C) Are not subject to air binding

Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg. (A) 1 (B) 0.1 (C) 0.01 (D) 0.001

Description : Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg. (A) 1 (B) 0.1 (C) 0.01 (D) 0.001

Last Answer : (C) 0.01

__________ pumps are axial flow pumps. (A) Turbine (B) Propeller (C) Diffuser (D) None of these

Description : __________ pumps are axial flow pumps. (A) Turbine (B) Propeller (C) Diffuser (D) None of these

Last Answer : (B) Propeller

Reciprocating pumps are not able to compete with the centrifugal pump for industrial use, mainly because these pumps have (A) Very low speeds (B) Smaller discharge (C) Higher capital &maintenance cost (D) High vibrations

Description : Reciprocating pumps are not able to compete with the centrifugal pump for industrial use, mainly because these pumps have (A) Very low speeds (B) Smaller discharge (C) Higher capital &maintenance cost (D) High vibrations

Last Answer : (C) Higher capital &maintenance cost

Most of the centrifugal pumps used in chemical plants are usually __________ driven. (A) Steam (B) Diesel engine (C) Electric motor (D) Gas turbine

Description : Most of the centrifugal pumps used in chemical plants are usually __________ driven. (A) Steam (B) Diesel engine (C) Electric motor (D) Gas turbine

Last Answer : (C) Electric motor

Foot valves provided in pumps are __________ valves. (A) Relief (B) Three/four way (C) Pressure reducing (D) Directional contro

Description : Foot valves provided in pumps are __________ valves. (A) Relief (B) Three/four way (C) Pressure reducing (D) Directional contro

Last Answer : (D) Directional control

A mixed flow centrifugal pump (A) Employs such an impeller, through which the flow is a combination of radial & axial flow (B) Mixes the two fluids before pumping them (C) Pumps the two fluids separately and then mixes them (D) Employs impellers in both the radial & axial directions

Description : A mixed flow centrifugal pump (A) Employs such an impeller, through which the flow is a combination of radial & axial flow (B) Mixes the two fluids before pumping them (C) Pumps the two fluids separately and then mixes them (D) Employs impellers in both the radial & axial directions

Last Answer : (A) Employs such an impeller, through which the flow is a combination of radial & axial flow

Diaphragm pumps are used to transport (A) Solids (B) Liquids (C) Fluids (D) Slurries

Description : Diaphragm pumps are used to transport (A) Solids (B) Liquids (C) Fluids (D) Slurries

Last Answer : (D) Slurries

__________ pumps are a group of vacuum pumps. (A) Hyster (B) Sump (C) Mono (D) Submerged

Description : __________ pumps are a group of vacuum pumps. (A) Hyster (B) Sump (C) Mono (D) Submerged

Last Answer : (A) Hyster

Propeller type centrifugal pumps are most suitable for (A) High capacity at high heads (B) High capacity at low heads (C) Low capacity at high heads (D) Low capacity at low heads

Description : Propeller type centrifugal pumps are most suitable for (A) High capacity at high heads (B) High capacity at low heads (C) Low capacity at high heads (D) Low capacity at low heads

Last Answer : (B) High capacity at low heads

The capacity of a centrifugal pump Can be increased by increasing the (A) Impeller diameter or speed (B) Number of pumps and joining them in series (C) Number of pumps and joining them in parallel (D) All (A), (B) and (C)

Description : The capacity of a centrifugal pump Can be increased by increasing the (A) Impeller diameter or speed (B) Number of pumps and joining them in series (C) Number of pumps and joining them in parallel (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Plunger pumps are used for (A) Higher pressure (B) Slurries (C) Viscous mass (D) None of these

Description : Plunger pumps are used for (A) Higher pressure (B) Slurries (C) Viscous mass (D) None of these

Last Answer : (A) Higher pressure

Centrifugal pumps as compared to reciprocating pumps (A) Run at a lower speed for the same discharge (B) Do not need priming (C) Deliver fluid with pulsating/fluctuating discharge (D) Can be run with discharge line valve closed for a short interval

Description : Centrifugal pumps as compared to reciprocating pumps (A) Run at a lower speed for the same discharge (B) Do not need priming (C) Deliver fluid with pulsating/fluctuating discharge (D) Can be run with discharge line valve closed for a short interval

Last Answer : (D) Can be run with discharge line valve closed for a short interval

In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes (A) Less than atmospheric pressure (B) More than liquid vapor pressure (C) Less than liquid vapor pressure (D) More than atmospheric pressure

Description : In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes (A) Less than atmospheric pressure (B) More than liquid vapor pressure (C) Less than liquid vapor pressure (D) More than atmospheric pressure

Last Answer : (C) Less than liquid vapor pressure

Chemical engineering plant cost index is used for finding the present cost of a particular chemical plant, if the cost of similar plant at some time in the past is known. The present cost of the plant = original cost × (index value at present/ index value at time original cost was obtained). The most major component of this cost index is (A) Fabricated equipment and machinery (B) Process instruments and control (C) Pumps and compressor (D) Electrical equipments and material

Description : Chemical engineering plant cost index is used for finding the present cost of a particular chemical plant, if the cost of similar plant at some time in the past is known. The present cost of ... (B) Process instruments and control (C) Pumps and compressor (D) Electrical equipments and material

Last Answer : (A) Fabricated equipment and machinery

What are the affinity laws associated with dynamics pumps

Description : What are the affinity laws associated with dynamics pumps

Last Answer : 1. Capacity varies directly with impeller diameter and speed. 2. Head varies directly with the square of impeller diameter and speed. 3. Horsepower varies directly with the cube of impeller diameter and speed.

What is the disadvantages and advantages of circulatory system of mammal?

Description : What is the disadvantages and advantages of circulatory system of mammal?

Last Answer : The circulatory system of mammals, also known as the cardiovascular system, plays a crucial role in the transport of oxygen, nutrients, hormones, and waste products throughout the body. It ... , its advantages outweigh the drawbacks and contribute to the overall functioning and survival of mammals.

Can you help me find scholarly articles on 'Advantages and Disadvantages of Equities and Bonds as Investments'?

Description : Can you help me find scholarly articles on 'Advantages and Disadvantages of Equities and Bonds as Investments'?

Last Answer : answer:Welcome to ask-public. How elementary an article do you want? That is, how much do you already know about the financial instruments themselves? Because one thing that few scholarly articles would tell you ... is, really know and not just think you know or heard from some people know.)

What are the advantages and disadvantages of posting photos to Instagram?

Description : What are the advantages and disadvantages of posting photos to Instagram?

Last Answer : Instagram is a social networking platform in its own right. You don’t need a Facebook account to use it, but you can use Instagram to post on multiple platforms. It’s just different strokes. Kind of like how some people share craft how-tos on Facebook and some use Pinterest.

What advantages and disadvantages do you see with releasing every episode of a 'TV' series at the same time on an internet streaming provider, such as Netflix?

Description : What advantages and disadvantages do you see with releasing every episode of a 'TV' series at the same time on an internet streaming provider, such as Netflix?

Last Answer : You can binge watch and not disrupt the continuity. No commercials. Pick and choose episodes you may have missed. I can’t think of a single disadvantage for the consumer.

Do you let people into your heart, or do you keep everyone at arm's length and what are the advantages and disadvantages of each?

Description : Do you let people into your heart, or do you keep everyone at arm's length and what are the advantages and disadvantages of each?

Last Answer : answer:Do you let people into your heart, or do you keep everyone at arm's length? Everyone I meet are kept at arm's length. But I try to get to know them, and when they turn out ... . And letting people into your heart will give you friends and companions, but you will also risk getting betrayed.

What are the advantages and disadvantages of a grammatical gender system?

Description : What are the advantages and disadvantages of a grammatical gender system?

Last Answer : Ask the ancient Greeks, or better yet, ask the even more ancient Mycaeneans. It happened a long time ago; who knows why?

What are the advantages and disadvantages of large (conventional) venetian blinds and mini-blinds?

Description : What are the advantages and disadvantages of large (conventional) venetian blinds and mini-blinds?

Last Answer : Since it depends entirely on the location, size and use of the area, I suggest you visit the window covering section of your local home improvement store and discuss it with them. We have a great department at the Lowe’s near us.

What are the advantages/disadvantages of being diagnosed with Clinical Isolated Syndrome (CIS) versus Multiple Sclerosis (MS)?

Description : What are the advantages/disadvantages of being diagnosed with Clinical Isolated Syndrome (CIS) versus Multiple Sclerosis (MS)?

Last Answer : My knowledge is very limited on this, and I am not a medical professional. I think it means your doctor is hoping you will not go on to develop MS, but had a single neurological episode of some sort. Did ... this is also considered a good sign, and may be why the doctor has called it CIS and not MS.

What are the advantages and disadvantages of a blu-ray system?

Description : What are the advantages and disadvantages of a blu-ray system?

Last Answer : answer:@Adirondackwannabe The blu-ray is the way to go, but question is what is it going to be connected to ?? Does the TV have HDMI and is it HD !!!

Why does my CPU have two cores disabled? What are the advantages/disadvantages?

Description : Why does my CPU have two cores disabled? What are the advantages/disadvantages?

Last Answer : Four cores gives you double the parallel processing power of two. Processor manufacturers test each processor for their maximum speeds, then set the clock speed accordingly. However, if they get a really ... it as a dual core and locked off two cores to maintain their reputation. Just guessing.

What are the advantages and disadvantages of the mammal circulatory system?

Description : What are the advantages and disadvantages of the mammal circulatory system?

Last Answer : answer:One advantage would be the ability to repair tissue damage due to localized inflamation and recruitment of cells through the secretion of cytokines. The ability to regulate body heat ... either hemolytic anemia, un-checked proliferation of immature or mutant cells, and bleeding dyscrasias.

Advantages and disadvantages of FEDORA over redhat in detail?

Description : Advantages and disadvantages of FEDORA over redhat in detail?

Last Answer : answer:Fedora Core is more cutting edge, where red hat/centos is more geared toward being a stable enterprise OS. If you are wanting a desktop environment I would say Fedora Core for all the ... what you are looking to do. That would better help determine what the advantages and disadvantages are.

What are the advantages/disadvantages to having a sealed or unsealed motorcycle battery?

Description : What are the advantages/disadvantages to having a sealed or unsealed motorcycle battery?

Last Answer : The first thought that came to mind is water. being a bike and low to the ground, it would seem that a waterproof battery would definetely be the best choice, since road water could possible shorten out an unsealed battery. does this make sense?