In this day and age of automated computer control valve sizing, the logic and theories behind it are invisible. In his presentation, Al Holton of Allagash Valve & Controls will look at the basic principles that apply and how they affect the application and installation of a wide range of control valve types. He will also review the reasoning behind valve type selection.
Process control presentation on Final Control Element, components, types, val...Hassan ElBanhawi
Based on my 8 years of experience in Oil & Gas industry I'm trying here to introduce you to the most of what you may need to know about Process Control as a chemical engineer. This is an introduction to understand more about :-
-Final Control Element
-Components
- Types
- Sizing Equations
This is 4 of 4 presentation on this topic.
All the data and the illustrative figures presented here can be found through two reference books:-
ENGINEERING DATA BOOK by Gas Processors Suppliers Association
Process Technology - Equipment and Systems by Charles E. Thomas
VALTEK (1995) Control Valve Sizing and Selection Manual.
Thank you.
Setpoint Integrated Solutions is an industry leader in applying Control Valve solutions across industry segments.
Brannon Gant - Regional Sales Manager
In this day and age of automated computer control valve sizing, the logic and theories behind it are invisible. In his presentation, Al Holton of Allagash Valve & Controls will look at the basic principles that apply and how they affect the application and installation of a wide range of control valve types. He will also review the reasoning behind valve type selection.
Process control presentation on Final Control Element, components, types, val...Hassan ElBanhawi
Based on my 8 years of experience in Oil & Gas industry I'm trying here to introduce you to the most of what you may need to know about Process Control as a chemical engineer. This is an introduction to understand more about :-
-Final Control Element
-Components
- Types
- Sizing Equations
This is 4 of 4 presentation on this topic.
All the data and the illustrative figures presented here can be found through two reference books:-
ENGINEERING DATA BOOK by Gas Processors Suppliers Association
Process Technology - Equipment and Systems by Charles E. Thomas
VALTEK (1995) Control Valve Sizing and Selection Manual.
Thank you.
Setpoint Integrated Solutions is an industry leader in applying Control Valve solutions across industry segments.
Brannon Gant - Regional Sales Manager
Based on my 8 years of experience in Oil & Gas industry I can claim that you can find here All what you need to know about Valves. This is an introduction to understand more about their:-
- Classification.
- Selection
- Most common Types.
You can find also more at:
http://hassanelbanhawi.com/staticequipment/valves
All the data and the illustrative figures presented here can be found through two reference books:-
ENGINEERING DATA BOOK by Gas Processors Suppliers Association
Process Technology - Equipment and Systems by Charles E. Thomas
Thank you.
Control Valves types, control valves characterstics, affects on control valves due to various process fluctuations or cavitations or flashing and remidies.The model datasheets also included.
A Control Valve is the most commonly used
final control element used to regulate fluid flow in
a process. In a process, normally it is the only
controllable element residing in the loop.
Ø This is a device used to modulate flow of
process fluid in pipe lines by creating a variable
area in the flow path.
Ø The flow path is varied with respect to the
control signal received from the controller
towards the required flow modulation.
Piping and Instrumentation / Process Flow DiagramPatel Ghanshyam
Overview of Piping and Instrumentation / Process Flow Diagram
3 Levels of Diagram
The Block Flow Diagram (BFD)
Definitions of BFD
PFD Drawing Symbols
The Process Flow Diagram
P&ID – Construction Bible
Process Control Fundamentals and How to read P&IDsAhmed Deyab
Types of Process Control, Feedback control, feed-forward control loops, ratio control loop, split range control. How to read Piping and Instrumentation Diagram for Process Engineers
Based on my 8 years of experience in Oil & Gas industry I can claim that you can find here All what you need to know about Valves. This is an introduction to understand more about their:-
- Classification.
- Selection
- Most common Types.
You can find also more at:
http://hassanelbanhawi.com/staticequipment/valves
All the data and the illustrative figures presented here can be found through two reference books:-
ENGINEERING DATA BOOK by Gas Processors Suppliers Association
Process Technology - Equipment and Systems by Charles E. Thomas
Thank you.
Control Valves types, control valves characterstics, affects on control valves due to various process fluctuations or cavitations or flashing and remidies.The model datasheets also included.
A Control Valve is the most commonly used
final control element used to regulate fluid flow in
a process. In a process, normally it is the only
controllable element residing in the loop.
Ø This is a device used to modulate flow of
process fluid in pipe lines by creating a variable
area in the flow path.
Ø The flow path is varied with respect to the
control signal received from the controller
towards the required flow modulation.
Piping and Instrumentation / Process Flow DiagramPatel Ghanshyam
Overview of Piping and Instrumentation / Process Flow Diagram
3 Levels of Diagram
The Block Flow Diagram (BFD)
Definitions of BFD
PFD Drawing Symbols
The Process Flow Diagram
P&ID – Construction Bible
Process Control Fundamentals and How to read P&IDsAhmed Deyab
Types of Process Control, Feedback control, feed-forward control loops, ratio control loop, split range control. How to read Piping and Instrumentation Diagram for Process Engineers
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
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.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
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.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
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
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
1. Instrumentation Tools
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Author: Instrumentation Tools
Categories: Control Valves
Control Valves Multiple Choice Questions
Control Valves Multiple Choice Questions
Question 1
When a control valve is installed in a process with where the differential pressure (drop)
across the valve decreases with increasing flow, the best trim characteristic to choose
for the valve would be:
(A) Ported
(B) Quick-opening
(C) Equal percentage
(D) Linear
(E) Anti-cavitation
Answer : C
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Question 2
The correct identities of the four control valve types shown below are (in order from left to
right):
(A) Plug, Slide, Rotary, Ball
(B) Globe, Butterfly, Disc, Ball
(C) Ball, Gate, Butterfly, Plug
(D) Diaphragm, Gate, Disc, Globe
(E) Ball, Disc, Butterfly, Globe
Answer : C
Question 3
An air-to-open control valve assembly may be formed with which of these actuator/valve
body combinations?
(A) Reverse-acting actuator, direct-acting valve body
(B) Direct-acting actuator, direct-acting valve body
(C) Direct-acting actuator, reverse-acting valve body
(D) A or C
(E) B or C
Answer : D
Question 4
Calculate the necessary Cv rating for a liquid service control valve, given a pressure
drop of 24 PSID, a specific gravity of 1.3, and a maximum flow rate of 140 GPM. Assume
there will be no flashing or choked flow through the valve.
(A) 0.1319
(B) 32.58
(C) 7.583
(D) 2585
(E) 601.5
Answer : B
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Learn Instrumentation and Control Engineering. Inst Tools covers topics of Industrial
Instrumentation, PLC, DCS, SCADA, Field Instruments, Analyzers and so on.
https://instrumentationtools.com
Question 5
The main purpose of a control valve positioner is to:
(A) Alter the fail-safe status of the valve
(B) Improve the precision of the valve
(C) Alter the characterization of the valve
(D) Increase transmitter accuracy
(E) Eliminate cavitation in the valve
Answer : B
Question 6
The purpose of valve packing is to:
(A) Help reduce cavitation in the valve trim
(B) Increase stiction
(C) Cushion the valve against harm during shipment
(D) Seal process fluid from escaping past the stem
(E) Lubricate the valve trim
Answer : D
Question 7
The definition of split range control valves implies that they are . . .
(A) designed to be easily disassembled.
(B) easily re-ranged for different characteristics.
(C) equipped with quick-acting positioners.
(D) only used in sets of three.
(E) calibrated with complementary ranges.
Answer : E
Question 8
Dual-ported globe valves typically enjoy the following advantage over single-ported globe
valves:
(A) Less actuating force required
(B) Longer service life
(C) Easier disassembly and maintenance
(D) Tighter shut-off
(E) Greater temperature range
Answer : A
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Question 9
Cavitation in a control valve is caused by:
(A) process noise
(B) vibration in the piping
(C) the Von Karman effect
(D) a laminar flow regime
(E) pressure recovery
Answer : E
Question 10
The proper “fail safe” status of a control valve should always be dictated by:
(A) economic savings
(B) the configuration of the positioner
(C) the controller’s tuning
(D) the controller’s action (direct or reverse)
(E) the nature of the process
Answer : E
Valves Objective Questions – Share Your Answers with Explanations
11. Regardless of type, all valves have the following basic parts, with the exception of _.
a) bonnet
b) nipple
c) actuator
d) body
12. The body of a valve typically receives inlet and outlet piping through any of the
following types of joints EXCEPT:.
a) glued
b) welded
c) threaded
d) bolted
13. The internal elements of a valve are collectively referred to as a valve’s .
a) guts b) trim
c) works d) packings
14. The manually operated handwheel, manual lever, motor operator, solenoid operator,
pneumatic operator, or hydraulic ram are all examples of
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a) a yoke
b) a stem
c) a bonnet
d) an actuator
15.Which one of the following valve parts is NOT usually considered to be a part of the
pressure boundary.
a) body
b) seal rings
c) bonnet
d) disk
16.The stem in a valve, which connects the actuator and disk, is responsible for
positioning the disk.
a) True
b) False
17.Most valves use___________to prevent leakage from the space between the stem and
the bonnet.
a) o-rings
b) a liquid seal
c) a metal to metal seal
d) packing
18.Which of the following types of valve uses a flow control element that involves sliding
a flat, cylindrical, or spherical surface across an orifice?
a) globe and needle valves
b) butterfly and diaphragm valves
c) gate and plug valves
d) globe and gate valves
19.Which of the following types of valve uses a flow control element that involves
moving a flexible material into the flow passage?
a) diaphragm and pinch valves
b) globe and needle valves
c) gate and plug valves
d) needle and pinch valves
20.Which of the following types of valve uses a flow control element that involves
moving a disc or plug into or against an orifice?
a) gate and plug valves
b) globe and gate valves
c) globe and needle valves
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d) butterfly and diaphragm valves
21.Which of the following types of valve uses a flow control element that involves
rotating a disc or ellipse about a shaft extending across the diameter of an orifice?
a) gate and plug valves
b) globe and gate valves
c) glove and needle valves
d) butterfly and ball valves
22.Gate Valves are not recommended for applications which:
a) require regulation and throttling of flow
b) require good sealing with little or no leakage
c) can have no resistance to flow when the valve is open
d) require the use of flanged connections
23.The _____ is the most commonly used disk within a gate valve, because of its
simplicity and strength.
a) parallel disk
b) flexible wedge
c) split wedge
d) solid wedge
24.A globe valve is suitable for stopping and starting fluid flow, but not for regulating
flow.
a) True
b) False
25.Which of the following is the globe valve body design that is the simplest and most
common for water applications?
a. Z-body
b. X-body
c. Angle
d. Y-body
26.Which of the following is the globe valve body design that provides a remedy for the
high pressure drop inherent in globe valves?
a) Z-body
b) X-body
c) Angle
d) Y-body
27.Which of the following is the globe valve body design that can be used as both a valve
and a piping elbow?
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a) Z-body
b) X-body
c) Angle
d) Y-body
28.Which of the following valve types has an actuator that is of the quick-acting type,
requiring only a 90 deg turn of the handle to fully open or close the valve?
a) gate valve
b) globe valve
c) ball valve
d) pinch valve
29.Which of the following valve types is well suited for an application where corrosion or
metal contamination of the fluid might be a problem, because the operating mechanism
is completely isolated from the fluid?
a) pinch valve
b) gate valve
c) butterfly valve
d) reducing valve
30.Which of the following types of valve causes the greatest head loss when completely
open?
a) ball valve
b) gate valve
c) butterfly valve
d) globe valve
31.Which of the following is a disadvantage of ball valves?
a) They are large and heavy.
b) They have high maintenance costs.
c) They have relatively poor throttling characteristics
d) They are among the most expensive of the valve types.
32.The gland of a plug valve is equivalent to the ___ of a gate or globe valve.
a) body
b) packing
c) seat
d) bonnet
33.Which type of valve has advantages over other valve designs in weight, space and
cost for large valve applications?
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a) butterfly valve
b) globe valve
c) diaphragm valves
d) gate valves
34.All of the following are general types of check valves EXCEPT _.
a) butterfly
b) plug
c) swing
d) tilting disc
35.Relief and safety valves prevent equipment damage by relieving accidental over-
pressurization of fluid systems.
a) True
b) False
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