- The Valves
Infobox musical artist See Wikipedia WikiProject Musicians Name The Valves Img The Valves.jpg Img capt Publicity photo taken by Paul Slatterly, circa 1977 Landscape Background group or band Alias Origin Edinburgh , Scotland Genre Punk rock Years active 1977&ndash 1979 Label Zoom Records Scotland Zoom , Albion Associated acts URL Current members Dave Robertson vocals br Ronnie Mackinnon Guitar br Gordon Scott Bass br Gordon Dair Drums The Valves were one of the early punk rock punk band music groups from Edinburgh , Scotland . The band, chronicled in Henrik Poulsen s book 77 The Year of Punk and New Wave , featured Dave Robertson as Dee Robot on singer vocals , G. Dair Teddy Dair aka Gordon Dair on drum s, Gordon Scott or Pada on bass guitar and Ronnie Mackinnon on guitar . The band was originally called Angel Easy and were a Pub rock UK pub rock group. ref name dee http www.punk77.co.uk groups valvesdave.htm ref ref name punk77 http www.punk77.co.uk groups valves.htm ref The Valves released three singles and then broke up in 1979, with most of the members quitting the music business. ref name dee http www.punk77.co.uk groups valvesdave.htm ref Members Dee Robot Dave Robertson vocals Ronnie Valve Ronnie Mackinnon Guitar Pada Valve Gordon Scott Bass Gordon Valve Teddy Gordon Dair Drums Singles Robot Love For Adolfs Only Zoom September 1977 Ain t No Surf in Portobello Tarzan of the Kings Road Zoom December 1977 It Don t Mean Nothing At All Linda Vindaloo Albion June 1979 References reflist External links http www.punk77.co.uk groups valvesdave.htm May 2000 interview with Dave Robertson http www.punk77.co.uk groups valves.htm The Valves http www.boredteenagers.co.uk valves.htm Collection of mostly bad reviews of The Valves http www.fletchweb.myby.co.uk valves fletchWeb http worthless trash.blogspot.com 2007 08 01 archive.html Worthless trash.blogspot.com DEFAULTSORT Valves Category Scottish punk rock groups Category 1970s music groups UK band stub ... more details
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- Control valves
Control valves are valves used to control conditions such as Fluid dynamics flow , pressure , temperature , and liquid level by fully or partially opening or closing in response to signals received from controllers that compare a setpoint to a process variable whose value is provided by sensors that monitor changes in such conditions. ref cite book author Bela G. Liptak Editor title Instrument Engineers Handbook edition 4th Edition publisher CRC Press year 2003 isbn 0 8493 1083 0 ref The opening or closing of control valves is done by means of electrical , hydraulic or pneumatic systems. Positioners are used to control the opening or closing of the actuator based on Electric, or Pneumatic Signals. These control signals, traditionally based on 3 15psi 0.2 1.0bar , more common now are 4 20mA signals for industry, 0 10V for HVAC systems, & the introduction of Smart systems, HART, Fieldbus Foundation, & Profibus being the more common protocols. Types of control valve bodies The most common and versatile types of control valves are sliding stem globe and angle valves. Their popularity derives from rugged construction and the many options available that make them suitable for a variety of process applications, including severe service. ref http www.plantservices.com articles 2003 124.html Hagen, S. 2003 Control valve technology Plant Services ref Control valve bodies may be categorized ... Double ported valve bodies Three way valve bodies Diaphragm Valves Rotary valves Butterfly valve bodies ... bodies sliding cylinder valves is there a better name for this? Directional control valve spool valve piston valve air operated valves air operated valve relay valve air operated pinch valve See also ... valve tutorials Tutorials covering the sizing, capacity and characteristics of control valves ... Lecture 8 Control valves Article from a University of South Australia website. http www.flowcontrol.com ... Valves Category Control devices Category Valves engineering stub de Stellventil fr Vanne automatique ... more details
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- Anal valves
Infobox Anatomy Name PAGENAME Latin valvulae anales GraySubject 249 GrayPage 1185 Image Gray1080.png Caption The interior of the anal cami and lower part of the rectum, showing the columns of Morgagni and the anal valves between their lower ends. The columns were more numerous in the specimen than usual. Image2 Caption2 System MeshName MeshNumber DorlandsPre v 02 DorlandsSuf 12844489 The rectal sinuses end in small valve like folds, termed anal valves , which join together the lower ends of the rectal columns . External links SUNYAnatomyLabs 43 11 01 07 The Female Pelvis The Rectum Gray s digestive stub Digestive tract Category Digestive system it Valvole anali ... more details
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- Pneumatic non-return valves
unreferenced date August 2009 Pneumatic non return valves are used where a normal non return valve would be ineffective. This is for example where there is a risk of flood water entering a site but an equal risk of pollution or a chemical spills leaving a site and polluting the environment. Pneumatic non return valves are installed below ground and can be used to pneumatically lock the non return valve closed thus containing a site in the event of a spill. It is common practice to lock sites using pneumatic non return valves during the loading or transferring of chemicals or hazardous waste. Pneumatic non return valves have a longer service life when compared to pneumatic bladder systems. Category Valves ... more details
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- Spiral valves of Heister
Spiral valves of Heister are undulating folds or valves in the proximal mucosa of the cystic duct . The cystic duct attaches the gallbladder to the common bile duct . The spiral valves of Heister are supported by underlying smooth muscle fibers. There is some uncertainty regarding the role of the folds. Historically, physicians believed that their function was to aid in the passage of bile to and from the gallbladder, as well as regulate the degree of gallbladder distension. The presence of the spiral folds, in combination with the tortuosity of the cystic duct, makes endoscopic cannula tion and catheterization of the cystic duct extremely difficult. Also, the valves of Heister impede the introduction of surgical instruments and are susceptible to laceration s. They were named after German anatomist Lorenz Heister 1683 1758 . References http radiographics.rsnajnls.org cgi content full 21 1 3 The Cystic Duct Normal Anatomy and Disease Processes Category Digestive system Spiral valves of Heister Digestive stub ... more details
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- Cusps of heart valves
Infobox Anatomy Name Cusps of heart valves Latin GraySubject GrayPage Image Gray495.png Caption Base of ventricles exposed by removal of the atria. Valves visible on top of heart. Image2 Gray497.png Caption2 Aorta laid open to show the semilunar valves. Note that captions don t align with current terminology. System Precursor MeshName MeshNumber DorlandsPre DorlandsSuf The cusps of the heart valves serve to seal the heart valve s when closed. There are three cusps for each valve except for the mitral valve , which has only two hence its alternate name, bicuspid valve . Nodules are located at the tip of the valve, to form a tighter seal. Semilunar valves pulmonary valve ref SUNYAnatomyLabs 20 21 01 02 Heart The Pulmonic Valve ref right cusp left cusp anterior cusp aortic valve ref SUNYAnatomyLabs 20 29 01 04 Heart The Aortic Valve and Aortic Sinuses ref . Note that one is absent in the condition bicuspid aortic valve . right cusp left cusp posterior cusp or noncoronary cusp Atrioventricular valves tricuspid valve right av anterior cusp or infundibular cusp posterior cusp or marginal cusp septal cusp or medial cusp mitral valve left av anterior cusp posterior cusp Additional images gallery Image Heart short axis aorta.svg Heart short axis aorta Image Heart valves.png Cusps of heart valves gallery References references External links SUNYAnatomyFigs 20 07 00 Valves of the heart. Heart Category Cardiac anatomy Category Valves circulatory stub ... more details
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- Automatic Balancing Valves
, double regulating balancing valves installed to account for and reduce the impact of pressure ..., motorized control valves are often used to control flows to terminal Fan coil unit fan coil unit s, or thermostatic ... valves to proportionately balance and limit flows to all terminal valves. DPCVs help maintain a constant ... valves in other branches.In systems with 2 port control valves, DPCVs can perform the dual duties ... problems caused by high or excessive system pressures, including noise from the valves and, ultimately ... on energy usage, by minimising pumping costs.In variable flow systems the use of combination valves ... of high and varying pressure drops across traditional 2 port control valves is also effectively eliminated ... of adjustable flow limiting valves is designed to optimize water flow and can prove invaluable. Such valves ... reduced. For example, in a typical installation of fan coil units, manual balancing valves ... functionality , automatic balancing valves are only needed at terminal units, reducing the number of valves ... flow limiting valves are easy to size and set and provide effective flow limitation at terminal ... Independent Balancing And Control Valve Control Valves In Variable Flow Chilled Water Systems Control valves sizing is all too often described as an art. The reason for this is that, as Hydronic ... definitive aim when sizing control valves to find the perfect valve solution for your system ... a variable flow system had on the selection of control valves, was not initially realized ... is costly. Unfortunately, traditional control valves make it inevitable. As we size a control ... in chilled water systems lies in the use of pressure independent control valves. Pressure independent control valves Traditional control valve sizing for constant flow systems involves a Kv calculation ... on having the correct design information.Pressure independent control valves are used to limit the flow ... flow to the terminal.The added advantage of pressure independent control valves is that, when fitted ... more details
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- Pericardial heart valves
Valves. Proceedings of the Third International Symposium Yorke Medical Books 1986 New York, pages ... valve in all three cardiac positions in humans.Between 1971 and 1976 the valves had ... when compared with the reported results of all other artificial valves in existence. It demonstrated ... Ionescu File Coloured valves.jpg thumb 350px Family of Ionescu Shiley Pericardial Valves Based on these results ... guard against exposing the valves during transportation or storage at temperatures below 4 degrees ... thumb Lateral view, Low Profile Valve Approximately 200,000 pericardial valves manufactured by Shiley ... heart valves, and to cover the subject completely and fairly. One should also remember that if we ... Investigations and In Vitro Testing of Valves The Ionescu pericardial valve had a large central ... E, Yacoub M, Eds Biologic and Bioprosthetic Valves. Proceedings of the Third International Symposium ... of Thoracic and Cardiovascular Surgery, 80, 613 ref investigating patients with pericardial valves ... for the porcine valves and, generally speaking, equal to that of the best mechanical prostheses .... Some authors stressed the advantage of very low pressure gradients across small pericardial valves ... the reasons for the great haemodynamic difference between the pericardial and porcine valves, Ionescu recorded in a pulse duplicator the opening characteristics of two porcine valves Hancock Modified Orifice and the recently modified Edwards valve and two pericardial valves the Standard and the Low Profile Shiley valves . File Valve openings.jpg thumb 350px Opening Characteristics of Porcine and Pericardial Valves All four valves were manufactured for clinical use and all had an implantation diameter of 25mm. The valves were tested under identical conditions in the mitral compartment of the pulse ... of pericardial valves is synchronous and regular, without three dimensional flexure and the low .... There are no crevices or dead spaces behind the open cusps of the pericardial valves. The difference ... more details
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- Pyrotechnic valves
primarysources date February 2009 A Pyrotechnic valve is a one time use propulsion component often used to control propellant or pressurant systems on spacecraft. The device receives a signal voltage to fire a small munition which in turn shears away a small flange that initially blocked the flow path of the attached tubing. spacecraft stub Category Spacecraft components ... more details
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- File:Valvole di sicurezza di grandi dimensioni.jpg
Summary Safety valves ND250 Licensing self GFDL cc by sa 3.0,2.5,2.0,1.0 ... more details
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- Pneumatic flow control
Pneumatic flow control is the use of air as a control medium, or as the controlled medium, in which one medium controls the Fluid dynamics flow of another. Pneumatic flow control taxonomy There are two possible pneumatic flow controls those that are controlled by pneumatics , and those that control pneumatics. Pneumatically controlled valves Pneumatically controlled valves are valves that are controlled by pressurized air. These may include water flow valves that are controlled by compressed air. Pneumatically controlling valves Pneumatically controlling valves are valves that control the flow of pressurized air. Another medium such as water hydraulics or electricity, for example, may be used to control the valves. In some cases, the valves are operated manually rather than automatically. See also Control valves External links Flash Animation of Flow Control Valve http www.pinomatik.com flow control valve.html Fluiddynamics stub Category Fluid dynamics Category Pneumatics Category Control devices uk ... more details
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- File:Coloured valves.jpg
Summary Picture showing the family of Ionescu Shiley bovine pericardial valves Licensing Non free use rationale Description A collection of 4 pericardial valves produced by Shiley Laboratories Inc. Source Photograph produced by Shiley Laboratories Inc. irvine, California. Shiley Inc no longer exixts so I do not know the copyright holder. Article Pericardial Heart Valves Portion Photograph ccropped and scanned Low resolution Yes Purpose To show the different pericardial valves Replaceability No, I can not find this image anywhere else ... more details
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- File:Opening characteristics.jpg
Non free use rationale Description Opening characteristics of 4 pericardial valves Source Shiley Laboratories Inc.Irvine, California. Produced in publicity brochure for pericardial valves. Shiley Inc. no longer exists and I do not know the copyright holder Article Pericardial Heart Valves Portion Cropped and Scanned photograph Low resolution Yes Purpose To illustrate a scientific detail about the opening of pericardial valves Replaceability No, This picture can not be found at a free source ... more details
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- 5V
The IATA code for Lviv Airlines This also commonly refers to combustion engine dn designs which operate with five valves per cylinder, hence for a 4 cylinder engine, there would be 20 valves in total See also V5 disambiguation Letter NumberCombDisambig ... more details
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- File:Heartvalve.jpg
Heart valve of Shiley Laboratories, Inc This company no longer manufactures heart valves. The image has become public domain. PD release ... more details
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- Side valve
Side valve can refer to Flathead engine Ford Flathead engine See also Cam in block disambig Category Engine valves ... more details
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- File:Pneumatic KMC Products Samples Large.jpg
Summary A sample collection of KMC pneumatic controllers, actuators, and valves. Author KMC Controls. File provided courtesy of KMC Controls. GFDL with disclaimers migration relicense ... more details
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- File:Pneumatic KMC Products Samples Small.jpg
Summary A sample collection of KMC pneumatic controllers, actuators, and valves. Author KMC Controls. File provided courtesy of KMC Controls. Licensing GFDL migration relicense ... more details
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- File:Rotork controls.jpg
Summary Electrically actuated butterfly valves controlling the automatic operation of filter plant in a water treatment works Licensing PD self date August 2010 ... more details
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- Shut down valve
the majority of actuators used for shutdown valves are of the spring return type due to the fail safe nature of spring return systems Measuring performance For shutdown valves used in safety instrumented ... Actuator Pipeline transport Piping Unit operation valves Category Valves Category Safety engineering ... more details
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- Piston valve
for piston valves on steam locomotives Piston valve steam engine Image Dugattyus szelep.png thumb right Piston valve in a brass instrument A piston valve is a device used to control the motion of a fluid along a tubing material tube or pipe material pipe by means of the linear motion of a piston within a chamber or cylinder engine cylinder . Examples of piston valves are The valves used in the valve gear of many stationary steam engine s and most steam locomotive s. The valves used in many brass instrument s. The valves used in Spud gun pneumatic cannons . Steam engines Image SwanningtonEngine ... of the Leicestershire Archaeological Society Volume XXX, 1954. ref Piston valves had been used ..., most steam locomotive s used D slide valve slide valves to control the flow of steam into and out of the Cylinder steam locomotive cylinder s. In the 20th century, slide valves were gradually superseded by piston valves, particularly in engines using Superheater superheated steam. There were two reasons for this With piston valves, the steam passages can be made shorter. This reduces resistance to the flow of steam and improves efficiency It is difficult to Lubrication lubricate slide valves ... slide valves or piston valves. Where poppet valve s are used, a different gear, such as Caprotti ... upright First piston valve of a B trumpet Cylindrical piston valves called Perinet valves after their inventor ... employ piston valves. The first piston valved musical instruments were developed just after the start ... preferred rotary valves for quicker, more reliable action, until better designs of piston valves ... spud gun enthusiasts who often build homemade piston valves for use in pneumatic cannons. Valves ... of valves are comparable to quick exhaust valves. This type of piston valve is also sometimes ... and engineering. Wikisource1911Enc Citation Valves brass instruments Piston engine configurations state uncollapsed DEFAULTSORT Piston Valve Category Valves Category Steam locomotive technologies Category ... more details
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- Pilot valve
A pilot valve is a small valve that controls a limited flow control feed to a separate piloted valve. Typically, this valve controls a high pressure or high flow feed. Pilot valves are useful because they allow a small and easily operated feed to control a much higher pressure or higher flow feed, which would otherwise require a much larger force to operate indeed, this is even useful when a solenoid is used to operate the valve. Pilot valves are often used in critical applications i.e., emergency and safety controls and are human operated. They can be set up as a push to activate or dead man s switch . tech stub Category valves ... more details
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- Atrioventricular
Atrioventricular having to do with an Atrium anatomy atrium and Ventricle heart ventricle can refer to Left atrioventricular opening Atrioventricular fistula Atrioventricular node The term Atrioventricular valves is used to describe the mitral valve and tricuspid valve . disambig ... more details
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- File:SOHschematic.jpg
Summary A class A fully differential no feedback audiophile amplifier based on 6SN7 KT88 valves, Design by U Fagerstedt and D Smith Licensing PD self date December 2006 ... more details
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- File:SOHinside.jpg
Summary A class A fully differential no feedback audiophile amplifier based on 6SN7 KT88 valves, Design by U Fagerstedt and D Smith Licensing PD self date December 2006 ... more details
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