This document provides instructions for assembling a hydraulic ram pump from standard plumbing parts. The assembly uses a swing check valve, spring loaded check valve, ball valves, unions, gauges and PVC or metal pipes. An inner tube is used as an air bladder in the pressure tank. The ram can be adjusted by changing the angle of the swing check valve or length of the drive pipe. Proper installation and startup is required to displace trapped air in the system.
Hydraulic Ram Made from Standard Plumbing Parts
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Double Food Production from your School Garden with Organic Tech =
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Increase Food Production with Companion Planting in your School Garden =
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Healthy Foods Dramatically Improves Student Academic Success =
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City Chickens for your Organic School Garden =
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Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica
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Simple Square Foot Gardening for Schools - Teacher Guide =
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Control Valve Actuators: Their Impact on Control and VariabilityCTi Controltech
Electric control valve actuators provide excellent performance and are ideal for oil and gas wells in remote production fields. Instrument air supply systems are costly and require significant energy to run. If mains power isn’t available, an instrument air supply isn’t practical, especially when only a few control valves are in use at a location. Solar powered DC electric actuators are ideal for such an application.
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.
Hydraulic Ram Made from Standard Plumbing Parts
`
For more information, Please see websites below:
`
Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
`
Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
`
Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
`
Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
`
Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica
http://scribd.com/doc/239850233
`
Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110 ~
Control Valve Actuators: Their Impact on Control and VariabilityCTi Controltech
Electric control valve actuators provide excellent performance and are ideal for oil and gas wells in remote production fields. Instrument air supply systems are costly and require significant energy to run. If mains power isn’t available, an instrument air supply isn’t practical, especially when only a few control valves are in use at a location. Solar powered DC electric actuators are ideal for such an application.
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.
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.
What Is A Control Valve
Process Control Terminology
Sliding-Stem Control Valve Terminology
Rotary-Shaft Control Valve Terminology
Control Valve Functions and Characteristics Terminology
Other Process Control Terminology
sliding stem control valve
Terminology, Control Valve Basic Designs, Characterization and Trim Design, Control Valve Technical Considerations, Force-Balance Principle, Actuator Basic Designs, Control Valve Unit Action, Actuator Benchset Range, Valve Positioner Basics, Control Loop Action, Control Valve Packing Designs, Seat Leakage
Cavitation Reduction in Industrial Process Control ValvesCTi Controltech
In many control valves, the pressure at the vena contracta
will drop below the vapor pressure of the liquid. When
this occurs, small bubbles of gas will form as the liquid
vaporizes. As the pressure then rises above the vapor
pressure again, these small bubbles collapse or implode
as the vapor turns back into liquid. The damage is inflicted
as the bubbles implode. The implosion of the vapor
bubbles is very energetic and forms jets of fluid which can
tear small pits into the metal. This is called cavitation.
Cavitation damage destroys both piping and control
valves, often resulting in catastrophic failure. It causes
valves to leak by eroding seat surfaces. It can drill holes
through pressure vessel walls. Even low levels of cavitation
will cause cumulative damage, steadily eroding parts
until the part is either repaired, or it fails.
This Slideshare explains valve cavitation and provides solutions to minimize or eliminate its effects.
Home Made Hydraulic Ram Pump - Part 1
`
For more information, Please see websites below:
`
Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
`
Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
`
Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
`
Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
`
Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica
http://scribd.com/doc/239850233
`
Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110 ~
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.
What Is A Control Valve
Process Control Terminology
Sliding-Stem Control Valve Terminology
Rotary-Shaft Control Valve Terminology
Control Valve Functions and Characteristics Terminology
Other Process Control Terminology
sliding stem control valve
Terminology, Control Valve Basic Designs, Characterization and Trim Design, Control Valve Technical Considerations, Force-Balance Principle, Actuator Basic Designs, Control Valve Unit Action, Actuator Benchset Range, Valve Positioner Basics, Control Loop Action, Control Valve Packing Designs, Seat Leakage
Cavitation Reduction in Industrial Process Control ValvesCTi Controltech
In many control valves, the pressure at the vena contracta
will drop below the vapor pressure of the liquid. When
this occurs, small bubbles of gas will form as the liquid
vaporizes. As the pressure then rises above the vapor
pressure again, these small bubbles collapse or implode
as the vapor turns back into liquid. The damage is inflicted
as the bubbles implode. The implosion of the vapor
bubbles is very energetic and forms jets of fluid which can
tear small pits into the metal. This is called cavitation.
Cavitation damage destroys both piping and control
valves, often resulting in catastrophic failure. It causes
valves to leak by eroding seat surfaces. It can drill holes
through pressure vessel walls. Even low levels of cavitation
will cause cumulative damage, steadily eroding parts
until the part is either repaired, or it fails.
This Slideshare explains valve cavitation and provides solutions to minimize or eliminate its effects.
Home Made Hydraulic Ram Pump - Part 1
`
For more information, Please see websites below:
`
Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
`
Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
`
Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
`
Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
`
Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica
http://scribd.com/doc/239850233
`
Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110 ~
Ram Pump Brochure - Latham International
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For more information, Please see websites below:
`
Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
`
Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
`
Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
`
Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
`
Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica
http://scribd.com/doc/239850233
`
Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110 ~
The Bamford Hi-Ram Pump
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For more information, Please see websites below:
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Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
`
Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
`
Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
`
Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
`
Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica
http://scribd.com/doc/239850233
`
Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110 ~
Using Downhole Jet pump with DST ApplicationsTaha Metwally
In this Article we can use downhole jet pumps during drill stem testing (DST) for production. Downhole jet pump used in reverse flow circulation. the best way for solids and abrasives handling. More economic way in testing phase either long term production and field profitability.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
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Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
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Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
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Hydraulic Ram Made from Standard Plumbing Parts - University of Georgia
1. Figure 1. Hydraulic Ram Assembly
HYDRAULIC RAM MADE FROM STANDARD PLUMBING PARTS
There are a number of companies that manufacture
hydraulic rams. While manufactured rams come pre-
assembled and offer the highest degree of convenience
and efficiency, they can be quite expensive. Fortu-
nately, inexpensive ram pumps can be assembled from
pipe fittings that are commonly available at most
hardware and farm stores.
Assembly is fairly quick and easy. All that is needed
is a pair of pipe wrenches, Teflon tape or other thread
sealant, PVC cleaning solvent and PVC cement. Table
1. lists all of the parts shown in Figure 1. When assem-
bling threaded fittings liberally apply thread sealant,
or use 3-4 turns of Teflon tape and tighten all fittings
securely to prevent leaks.
All ram pump fittings except the delivery pipe should
be made of either of galvinized steel, brass, or sched-
ule 40 or higher PVC. The delivery pipe can be made of
any material provided it can withstand the pressure
leading to the delivery tank. Make sure that the swing
check and the spring loaded check valves are installed
as shown in Figure 1. The flow direction arrow on the
body of the swing check valve must point down. The
valve below the pressure guage should be kept closed
except while making readings in order to protect the
guage from water hammers.
A bike, weelbarrow or scooter inner tube serves as an
air bladder for the pressure tank. Insert the inner
tube into the pressure tank and fill it slightly with air
(less than 10 psi). Some inner tubes may need to be
folded in order to fit them inside the pressure tank
casing. The sealed volume of air contained in the tube
prevents either water-logged or air-logged conditions
in the pressure tank.
There are several nonessential, but useful parts
included in this ram assembly. The ball valves, union
fittings, and guage assembly are all optional. The ball
valves on both the drive and delivery pipes are helpful
for starting the ram and controlling its flow. The union
fittings, also on both the drive and delivery pipes, are
helpful for removing the ram for maintenance and/or
repairs. The gauge assembly is useful for making
Cooperative Extension Service/The University of Georgia
College of Agriculture and Environmental Sciences/Athens
pressure readings, especially while starting the ram.
Any or all of these fittings can be left out of the ram
assembly without affecting pump performance. How-
ever, the absence of these parts will make it more
difficult to start and maintain the ram.
With the exception of the pressure tank’s air bladder,
all air trapped in the drive pipe, ram assembly, and
delivery pipe must be displaced with water before
these rams will pump properly. A few minutes of
manual operation, and several re-starts, may be
required to displace the trapped air
Pumping to Low Elevations
If the discharge elevation (delivery head) is less than
30 feet, it may be necessary to install either a ball
valve or an adjustable pressure relief valve on the
discharge (watering trough) end of the delivery pipe.
Either of these valves can be used to regulate the
water flow through the delivery pipe, which in turn
regulates the back pressure on the ram assembly. A
back pressure of up to 10 - 12 psi (as read on the
pressure gauge) may be required for proper ram
performance.
2. Table 1. Parts List for Hydraulic Rams Made up of Standard Plumbing Parts
Metal Ram Pump PVC Ram Pump
1. Screened water supply 1. Screened water supply
2. 1¼” drive pipe 2. 1¼” drive pipe
2. 1¼” ball valve 3. 1¼” ball valve
3. 1¼” x 2" nipple 4. 1¼”union
4. 1¼” union 5. 1¼” slip x male adaptor
5. 1¼” x 2" nipple 6. 1¼” threaded tee
6. 1¼” tee 7. 1¼” close nipple
7. 1¼” close nipple 8. 1¼” brass swing check valve
8. 1¼” brass swing check valve 9. 1¼” close nipple
9. 1¼” close nipple 10. 1¼” spring loaded check valve
10. 1¼” spring loaded check valve 11. 1¼” slip x male adaptor
11. 1¼” x 2" nipple 12. 1¼” slip x slip female tee
12. 1¼” tee 13. 1¼” male adaptor
13. 1¼” x 2" nipple 14. 4” x 1¼” reducing coupling
14. 4" x 1¼” reducing coupling 15. 4” pipe 36” long
15. 4" threaded pipe 36" long 16. Inner tube
16. Inner tube (slightly inflated) 17. 4” pipe cap
17. 4" pipe cap 18. 1¼” x ¾” reducing coupling
18. 1¼”close nipple 19. ¾” tee
19. 1¼” x ¾” reducing coupling 20. ¾” x ¼” slip x female bushing
20. ¾” x 2" nipple 21. ¼” x 2” nipple
21. ¾” tee 22. ¼” threaded ball valve
22. ¾” x ¼” bushing 23. Pressure gauge
23. ¼” x 2" nipple 24. ¾” union
24. ¼” ball valve 25. ¾” ball valve
25. Pressure gauge 26. ¾” delivery pipe
26. ¾” x 2" nipple
27. ¾” union
28. ¾” x 2" nipple
29. ¾” ball valve
30. ¾” delivery pipe
Adjusting the Ram
These rams can be adjusted in one of two ways. The
swing check valve may be adjusted by first rotating it
so that its pivot is in line with the drive pipe and then
twisting the valve and tee away from the vertical by
as much as 30 degrees. This allows the swinging flap
to partially close, which shortens the stroke period.
The other way to adjust these rams is to alter the
length of the drive pipe. Lengthening the drive pipe will
increase the stroke period. Conversely, shortening the
drive pipe will shorten the stroke period.
References
Much of the information contained in this publication is adapted
from the following publications:
Rife Manuel of Information. 1992. Rife Hydraulic Engine
Manufacturing Co., Box 367, Wilkes-Barre, PA, U.S.A.
Stevens-Guille, Peter. 1978. An Innovation in Ram Pumps for
Domestic and Irrigation Use. Appropriate Technology, Vol. 5 No. 1.
Watt, S.B. 1978. A Manual on the Hydraulic Ram for Pumping
Water. Intermediate Technology Publications, Southampton Row,
London WC1B 4HH, UK.
This publication (Misc Eng. Pub. # ENG98-003) was prepared
by:
Frank Henning, Special Ext. Agent, Water Quality
Mark Risse, Ag. Pollution Prevention Specialist
William Segars, Ext. Water Quality Coordinator
Vaughn Calvert II, Superintendent., Central GA Branch
Experiment Station
Joseph Garner, Sr. Ag. Specialist, Central GA Branch
Experiment Station
Printed March, 1998