This document provides an overview of different types of valves, including their functions and key components. It discusses valves that start and stop flow, such as gate, ball, and plug valves. It also covers valves that regulate flow, like globe and butterfly valves. The document describes other valve types like check valves, relief valves, and actuated valves. It provides details on valve materials, installation, handling, and markings.
A control valve is a power-operated device used to regulate or manipulate the flow of fluids, such as gas, oil, water, and steam. It is a critical part of a control loop and is an example of a final control element.
Listed below, are India's top 10 valve manufacturing businesses each of which provides high-quality valves at reasonable costs. Several manufacturers of valves in India manufacture various types of valves with several applications.
Other parts of the butterfly valve include a butterfly disc, external case, stem, a tough situating plate, pressing, and an actuator. A bar is gone via the disc joined to an actuator outside the valve.
A control valve is a power-operated device used to regulate or manipulate the flow of fluids, such as gas, oil, water, and steam. It is a critical part of a control loop and is an example of a final control element.
Listed below, are India's top 10 valve manufacturing businesses each of which provides high-quality valves at reasonable costs. Several manufacturers of valves in India manufacture various types of valves with several applications.
Other parts of the butterfly valve include a butterfly disc, external case, stem, a tough situating plate, pressing, and an actuator. A bar is gone via the disc joined to an actuator outside the valve.
Explained Valve opening methods & few capacitiesVrushtiVarma
Here, numerous valves achieve comparable objectives they do as such precisely can change. If your valve castings contain elastomers, also be considered for their chemical compatibility as well as pressure and temperature limits.
Here, the article provides a fundamental comprehension of the valve and its determination and utilization in different conditions. The material option assumes a significant part in selecting valves to guarantee the similarity of the wetted parts of the valve with the liquid.
Compared with the Solenoid valve, Actuated Ball valves offers different no. of configurations. We at Fevisa after years of understanding and research employ this methodology in our which are the industrial standards that are on the rise.
The butterfly is a type of valve and it is used for the control the flow. It will use the metal disc. Here get the information about which principles are working behind the butterfly valve?
Valves are mechanical devices that control the flow and pressure within a system or process. They are essential components of a piping system that conveys liquids, gases, vapors, slurries, etc.. ... Some valves are self-operated while others manually or with an actuator or pneumatic or hydraulic is operated.
Describe different flow control valves with figures. Include referenc.pdfpoblettesedanoree498
Describe different flow control valves with figures. Include references for the material and
figures.
Solution
DIFFERENT TYPES OF FLOW CONTROL VALVES
1. BALL VALVE
A ball valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball to
control flow through it. It is open when the ball\'s hole is in line with the flow and closed when it
is pivoted 90-degrees by the valve handle. The handle lies flat in alignment with the flow when
open, and is perpendicular to it when closed, making for easy visual confirmation of the valve\'s
status.
Ball valves are durable, performing well after many cycles, and reliable, closing securely even
after long periods of disuse. These qualities make them an excellent choice for shutoff and
control applications, where they are often preferred to gates and globe valves, but they lack their
fine control in throttling applications.
The ball valve\'s ease of operation, repair, and versatility lend it to extensive industrial use,
supporting pressures up to 1000 bar and temperatures up to 752 °F (500 °C), depending on
design and materials used. Sizes typically range from 0.2 to 48 inches (0.5 cm to 121 cm). One
disadvantage of a ball valve is that they trap water in the center cavity while in the closed
position. In the event of a freeze, the sides can crack due to expansion of ice forming. Some
means of insulation or heat tape in this situation will usually prevent damage. Another option for
cold climates is the \"freeze tolerant ball valve\". This style of ball valve incorporates a freeze
plug in the side so in the event of a freeze up, the freeze plug ruptures, (acts as a sacrificial disk),
thus making for an easy repair. Now instead of replacing the whole valve, just screw in a new
freeze plug.
2.GATE VALVE
A gate valve, also known as a sluice valve, is a valve which opens by lifting a round or
rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the
sealing surfaces between the gate and seats are planar, so gate valves are often used when a
straight-line flow of fluid and minimum restriction is desired. The gate faces can be parallel, but
are most commonly wedge-shaped. Gate valves are primarily used to permit or prevent the flow
of liquids, but typical gate valves shouldn\'t be used for regulating flow, unless they are
specifically designed for that purpose. Because of their ability to cut through liquids, gate valves
are often used in the petroleum industry. For extremely thick fluids, a specialty valve often
known as a knife gate valve is used to cut through the liquid. On opening the gate valve, the flow
path is enlarged in a highly nonlinear manner with respect to percent of opening. This means that
flow rate does not change evenly with stem travel. Also, a partially open gate tends to vibrate
from the fluid flow. Most of the flow change occurs near shutoff with a relatively high fluid
velocity causing gate and seat wear and eventual leakage if u.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
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Similar to Valves classification and description (1).pdf
Explained Valve opening methods & few capacitiesVrushtiVarma
Here, numerous valves achieve comparable objectives they do as such precisely can change. If your valve castings contain elastomers, also be considered for their chemical compatibility as well as pressure and temperature limits.
Here, the article provides a fundamental comprehension of the valve and its determination and utilization in different conditions. The material option assumes a significant part in selecting valves to guarantee the similarity of the wetted parts of the valve with the liquid.
Compared with the Solenoid valve, Actuated Ball valves offers different no. of configurations. We at Fevisa after years of understanding and research employ this methodology in our which are the industrial standards that are on the rise.
The butterfly is a type of valve and it is used for the control the flow. It will use the metal disc. Here get the information about which principles are working behind the butterfly valve?
Valves are mechanical devices that control the flow and pressure within a system or process. They are essential components of a piping system that conveys liquids, gases, vapors, slurries, etc.. ... Some valves are self-operated while others manually or with an actuator or pneumatic or hydraulic is operated.
Describe different flow control valves with figures. Include referenc.pdfpoblettesedanoree498
Describe different flow control valves with figures. Include references for the material and
figures.
Solution
DIFFERENT TYPES OF FLOW CONTROL VALVES
1. BALL VALVE
A ball valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball to
control flow through it. It is open when the ball\'s hole is in line with the flow and closed when it
is pivoted 90-degrees by the valve handle. The handle lies flat in alignment with the flow when
open, and is perpendicular to it when closed, making for easy visual confirmation of the valve\'s
status.
Ball valves are durable, performing well after many cycles, and reliable, closing securely even
after long periods of disuse. These qualities make them an excellent choice for shutoff and
control applications, where they are often preferred to gates and globe valves, but they lack their
fine control in throttling applications.
The ball valve\'s ease of operation, repair, and versatility lend it to extensive industrial use,
supporting pressures up to 1000 bar and temperatures up to 752 °F (500 °C), depending on
design and materials used. Sizes typically range from 0.2 to 48 inches (0.5 cm to 121 cm). One
disadvantage of a ball valve is that they trap water in the center cavity while in the closed
position. In the event of a freeze, the sides can crack due to expansion of ice forming. Some
means of insulation or heat tape in this situation will usually prevent damage. Another option for
cold climates is the \"freeze tolerant ball valve\". This style of ball valve incorporates a freeze
plug in the side so in the event of a freeze up, the freeze plug ruptures, (acts as a sacrificial disk),
thus making for an easy repair. Now instead of replacing the whole valve, just screw in a new
freeze plug.
2.GATE VALVE
A gate valve, also known as a sluice valve, is a valve which opens by lifting a round or
rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the
sealing surfaces between the gate and seats are planar, so gate valves are often used when a
straight-line flow of fluid and minimum restriction is desired. The gate faces can be parallel, but
are most commonly wedge-shaped. Gate valves are primarily used to permit or prevent the flow
of liquids, but typical gate valves shouldn\'t be used for regulating flow, unless they are
specifically designed for that purpose. Because of their ability to cut through liquids, gate valves
are often used in the petroleum industry. For extremely thick fluids, a specialty valve often
known as a knife gate valve is used to cut through the liquid. On opening the gate valve, the flow
path is enlarged in a highly nonlinear manner with respect to percent of opening. This means that
flow rate does not change evenly with stem travel. Also, a partially open gate tends to vibrate
from the fluid flow. Most of the flow change occurs near shutoff with a relatively high fluid
velocity causing gate and seat wear and eventual leakage if u.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
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Student information management system project report ii.pdfKamal Acharya
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Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Vaccine management system project report documentation..pdfKamal Acharya
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Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Cosmetic shop management system project report.pdfKamal Acharya
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Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
2. 1.0.0 Introduction
• Valves are devices that control the flow of
fluids or gases through a piping system.
• Valves are made of a wide variety of materials
for compatibility to the fluid flowing through
it.
3. 2.0.0 Valves That Start and Stop Flow
• These valves are designed to be operated completely
open or completely closed.
• These valves cannot be used effectively to throttle, or
regulate, flow.
• Gate Valve
• Knife Valve
• Ball Valve
• Plug Valve
• Three-Way Valve
4. 2.1.0 Gate Valve
• Turning the hand-wheel lifts or lowers the disc
(gate).
• A partially opened gate causes turbulence.
• This turbulence not only causes piping
damage (water hammer), it also wears the
disc and seat surfaces.
5. 2.1.0 Gate Valve – Solid Wedge
Most common used:
a single, solid disc
that is rugged and
simple.
6. 2.1.0 Gate Valve – Flexible Wedge
A one-piece disc with
a cut or groove
around the edge to
compensate for
irregular sealing
edges.
8. 2.1.0 Gate Valve – Double (Parallel) Disc
Prevents valve
binding due to
thermal
transients.
9. 2.1.1 Valve Stem
• Connects the hand-wheel to the gate.
• Rising stem
– Hand-wheel and stem rising when opening
• Non-rising stem
– Hand-wheel and stem do not rise while opening
• Outside screw-&-yoke (OS&Y)
– Stem rises through the hand-wheel while opening
– Stem does not contact the fluid;
• therefore, the OS&Y is suitable for corrosive fluids
15. 3.0.0 Valves That Regulate Flow
• These valves can not only start and stop flow,
they can regulate flow.
• The disc can be totally removed from the flow.
• The most common types are:
– Globe Valve
– Butterfly Valve
– Diaphragm Valve
16. 3.1.0 Globe Valve
• Valve movement is perpendicular to the
seat.
• Basic types:
– Angle
– Y-type
– Needle
17. 3.1.0 Angle Valve
• A globe valve that changes the
direction of flow.
• Usually, the ports are at 90-degrees to
each other.
• These are commonly used to replace
valve and elbow combinations.
18. 3.1.0 Y-Type Valve
• Has the straight-through flow of a gate valve.
• Has the throttling and flow control of a globe.
19. 3.1.0 Needle Valve
• Commonly used for precise flow control of
instrumentation applications.
• Not commonly available over 1” in size.
20. 3.2.0 Butterfly Valve
• Has a round disc that turns 90 degrees to
mate with the seat.
• Used in low-to-medium pressures and flows.
24. 3.3.0 Diaphragm Valve
• Sealing disc is flexible and seals against the body.
• Suitable for slurries, highly corrosive materials,
and materials that cannot be contaminated.
25. 3.4.0 Needle Valve
• Has a tapered needle instead of a disc to allow
for fine adjustment to the flow.
26. 4.0.0 Valves That Relieve Pressure
• Used to control pressure, not flow.
• Two basic types are:
– Safety Valve
– Pressure Relief Valve
27. 4.1.0 Safety Valve
• Used in pipelines and tanks to prevent
ruptures due to excess pressure.
Water
Hydraulic (Sectional View)
Pneumatic
28. 4.2.0 Pressure Relief Valve
• In-line valve to control a specified pressure in the
liquid circuit.
• These usually have the pressure set at the factory.
29. 5.0.0 Valves That Regulate Direction of Flow
• These valves prevent backflow and are
referred to as “check valves”.
• Common types are:
– Swing
– Lift
– Ball
– Butterfly
– Foot
34. 5.5.0 Foot Valve
• Used at the bottom of a suction line to
maintain the prime of the pump.
35. 6.0.0 Valve Actuators
• Two primary purposes of valve actuators:
– Provide automatic operation of the valve,
– Reduce the effort required to manually operate the
valve.
• Four basic types of actuators:
– Gear
– Chain
– Pneumatic or Hydraulic
– Motor Driven, Electric or Pneumatic.
36. 6.1.0 Gear Actuators
• Reduces the effort required to manually operate the
valve.
• Three basic types:
• Spur Gear,
• Bevel Gear,
• Worm Gear.
37. 6.1.1 Spur Gear Actuator
• Valve stem and driver shaft are parallel.
38. 6.1.2 Bevel Gear Actuator
• Valve stem and driver shaft are 90 degrees to
each other and the gears are cone-shaped.
39. 6.1.3 Worm Gear Actuator
• Valve stem and driver shaft are 90 degrees to
each other. The driver gear (worm) looks like a
screw.
• Used primarily with butterfly valves.
40. 6.2.0 Chain Actuators
• Reduces the effort required to manually operate the
valve.
• Applicable where the valve is not easily accessible;
such as, too high to reach.
41. 6.3.0 Pneumatic and Hydraulic Actuators
• Uses fluid or air pressure to actuate the valve.
• Most of these are spring-loaded to ensure that
the valve fails in a fail-safe position.
42. 6.4.0 Electric- or Air-Motor Driven Actuators
• Uses motors to actuate the valve.
• Motor can be either electrical or pneumatic.
43. 6.5.0 Control Valves
• Variations of the angle, globe, or ball valves that
are controlled by pneumatic, electronic, or
hydraulic actuators.
• Most commonly used for pressure or
temperature control.
44. 7.0.0 Storing and Handling Valves
• Regardless of the size of the valve, the internal
seats, valves, and springs are precision
machined and must be handled carefully to
avoid damage.
45. 7.1.0 Safety Considerations
• When handling and/or working around valves:
– Be aware of all pinch points,
– Do not stand under a load,
– Be aware of surroundings,
– Never operate a valve in a live system without
authorization,
– Use a spud wrench, not your finger, to align flange
bolt holes.
– Never stand in front of a safety relief valve
discharge.
46. 7.2.0 Storing Valves
• Label all valves.
• Never store valves on the ground.
• Cover all open ends with ‘end protectors’.
47. 7.3.0 Rigging Valves
• Protect all threads and ends.
• Use the proper rigging equipment.
• Connect rigging to body only, not the stem,
handle, or through openings.
• Use a tag line, especially for larger valves.
48. 8.0.0 Installing Valves
• Best working height for manual actuator is
between 2’0” and 4’6” from floor.
• Follow schematics exactly.
– Direction of flow.
– Stem position.
• (vertical up works best, horizontal is acceptable, never
position stem vertical down.)
49. 9.0.0 Valve Selection, Types, and Applications
• Valves can be used in many different
applications.
• Valve selection is important; therefore, follow
design requirements exactly at installation.
51. 10.0.0 Valve Markings and Nameplate Information
• Manufacturers Standardization Society (MSS):
– Developed standards for valve markings.
• American National Standards Institute (ANSI):
• American Society for Testing Materials International (ASTM):
– Both have adopted the MSS marking system.
52. 10.0.0 Valve Markings and Nameplate Information
• Bridgewall markings (globe valves):
– Indicates how the valve seat is angled in relation to the
inlet and outlet ports.
• Flow direction arrow:
– Proper direction of fluid flow.
54. 10.2.0 Trim Identification
• Identifies the material of the seat, disc, stem,
and other internal parts if they are different
from the body of the valve.
55. 10.3.0 Size Designation
• Indicates the numerical identification
associated with the pipe size of the
connecting ends.
56. 10.4.0 Thread Markings
• Identifies the size and type of threads for
valves that have threaded connections.