Minimally invasive video-assisted mitral valve surgery
... Aortic dissection Conversion to sternotomy Hospital length of stay (days), median (IQR) Mortality (%) ...
... Aortic dissection Conversion to sternotomy Hospital length of stay (days), median (IQR) Mortality (%) ...
Service Manual
... light should be lit if the power source is connector properly. Measure and confirm the supply voltage. 5.1.2 If the breaker indicator light is off when the circuit breaker switch is in the ON position, the circuit breaker has tripped and must be reset. (See section 3.9). 5.1.3 The compressor may be ...
... light should be lit if the power source is connector properly. Measure and confirm the supply voltage. 5.1.2 If the breaker indicator light is off when the circuit breaker switch is in the ON position, the circuit breaker has tripped and must be reset. (See section 3.9). 5.1.3 The compressor may be ...
Biomaterials
... dental implant applications. Bioresorbable materials, such as tricalcium phosphate and polylactic-polyglycolic acid copolymers, are designed to be slowly replaced by tissue (such as bone) or for use in drug-delivery applications. Certain glasses, ceramics, and glassceramics that contain oxides of si ...
... dental implant applications. Bioresorbable materials, such as tricalcium phosphate and polylactic-polyglycolic acid copolymers, are designed to be slowly replaced by tissue (such as bone) or for use in drug-delivery applications. Certain glasses, ceramics, and glassceramics that contain oxides of si ...
silylation - RIT - People - Rochester Institute of Technology
... visible through the glass window on the door. Just below the door there are two regulators and two switches The regulator labeled “control thermostat” is used to control the power input to the heating elements of the oven. The other regulator is for limiting the power supply to the heating elements ...
... visible through the glass window on the door. Just below the door there are two regulators and two switches The regulator labeled “control thermostat” is used to control the power input to the heating elements of the oven. The other regulator is for limiting the power supply to the heating elements ...
Chilled Water Distribution System - University of Illinois Facilities
... as follows: 30 PSID at building service entrance, 5 PSID across building regulating valve at design chilled water flow rate. To date, most of these valves are oversized. Virtually every building on campus now has a year round cooling load. In most cases the winter load is small relative to the maxim ...
... as follows: 30 PSID at building service entrance, 5 PSID across building regulating valve at design chilled water flow rate. To date, most of these valves are oversized. Virtually every building on campus now has a year round cooling load. In most cases the winter load is small relative to the maxim ...
ANSI Y32.10 Graphic Symbols - Advanced Fluid Power, Inc.
... 1.2.1.5 This standard shows the basic symbols, describes the principles on which the symbols are based, and illustrates some representative composite symbols. Composite symbols can be devised for any fluid power component by combining basic symbols. Simplified ...
... 1.2.1.5 This standard shows the basic symbols, describes the principles on which the symbols are based, and illustrates some representative composite symbols. Composite symbols can be devised for any fluid power component by combining basic symbols. Simplified ...
Axiom AMI brochure
... The Axiom’s pneumatic valve system consists of a low-power pilot that drives the main highflow spool valve. Pilots may be selected for conventional or bus networking applications. Both stages of the pneumatic valve system have been designed for long life, high tolerance to air line contaminants, and ...
... The Axiom’s pneumatic valve system consists of a low-power pilot that drives the main highflow spool valve. Pilots may be selected for conventional or bus networking applications. Both stages of the pneumatic valve system have been designed for long life, high tolerance to air line contaminants, and ...
INSTRUCTIONS
... coupling on the left side is connected to the line to carry demineralized water. The outlet line from the SILEX plant as well as tap cocks on it must be of synthetic or other corrosionresistant material. ...
... coupling on the left side is connected to the line to carry demineralized water. The outlet line from the SILEX plant as well as tap cocks on it must be of synthetic or other corrosionresistant material. ...
Troubleshooting Electric Rotary Valve Actuators
... troubleshooting guide reflects common Causes and Solutions for most valve actuators. NOTES ON MAINTENANCE PROCEDURES: WARNING!!! In all cases, never operate an automated valve while under pressure or in a live process. Always disconnect supply air or voltage before any disassembly or maintenance is ...
... troubleshooting guide reflects common Causes and Solutions for most valve actuators. NOTES ON MAINTENANCE PROCEDURES: WARNING!!! In all cases, never operate an automated valve while under pressure or in a live process. Always disconnect supply air or voltage before any disassembly or maintenance is ...
Spears® Thermoplastic Piping System Materials - r-c
... 50% of the rating for corresponding type and size of thermoplastic pipe. NOTE: Valves have individual pressure ratings and do not require de-rating for threaded connections. Second, as with internal fluids, certain paste sealants may cause environmental stress cracking in thermoplastic materials, an ...
... 50% of the rating for corresponding type and size of thermoplastic pipe. NOTE: Valves have individual pressure ratings and do not require de-rating for threaded connections. Second, as with internal fluids, certain paste sealants may cause environmental stress cracking in thermoplastic materials, an ...
engineering specification
... Shall be submitted simultaneously with the shop drawings, complete operating and maintenance manuals listing the manufacturer's name(s), including technical data sheets. ...
... Shall be submitted simultaneously with the shop drawings, complete operating and maintenance manuals listing the manufacturer's name(s), including technical data sheets. ...
Lecture 18 PRESSURE-CONTROL VALVES
... amperage, all is well. When circuit amperage tries to exceed fuse amperage, the fuse blows and disables the circuit. Both devices protect the system from excess pressure/current by keeping it below a preset level. The difference is that when an electrical fuse blows, it must be reset or replaced by ...
... amperage, all is well. When circuit amperage tries to exceed fuse amperage, the fuse blows and disables the circuit. Both devices protect the system from excess pressure/current by keeping it below a preset level. The difference is that when an electrical fuse blows, it must be reset or replaced by ...
Iannetti A et al - Pure - A CFD model to evaluate the inlet stroke
... pump plungers usually act with a different angle of phase. During the suction stroke, the flow fills the chamber through a non-return inlet valve that is self-actuated (the valve moves when the differential pressure exceeds a spring preload). During the delivery stroke, a self-actuated outlet valve ...
... pump plungers usually act with a different angle of phase. During the suction stroke, the flow fills the chamber through a non-return inlet valve that is self-actuated (the valve moves when the differential pressure exceeds a spring preload). During the delivery stroke, a self-actuated outlet valve ...
Section 23 22 13 - STEAM AND CONDENSATE
... 1. Floats and linkages shall provide sufficient force to open trap valve over full operating pressure range available to the system. Unless otherwise indicated on the drawings, traps shall be sized for capacities indicated at minimum pressure drop as follows: a. For equipment with modulating control ...
... 1. Floats and linkages shall provide sufficient force to open trap valve over full operating pressure range available to the system. Unless otherwise indicated on the drawings, traps shall be sized for capacities indicated at minimum pressure drop as follows: a. For equipment with modulating control ...
Gas Furnace Controls
... the thermocouple, which is not heated by a flame, is the ‘cold junction.’ When the ‘hot junction’ is hot and the ‘cold junction’ is cold, the result will be the generation of a DC voltage. ...
... the thermocouple, which is not heated by a flame, is the ‘cold junction.’ When the ‘hot junction’ is hot and the ‘cold junction’ is cold, the result will be the generation of a DC voltage. ...
The Colibri heart valve: theory and practice in the
... in the dry state impose high stresses upon the tissue material which require that the tissue material should possess equally high tolerance of these stresses. Typical valve leaflet tissue materials have ultimate tensile strength, or breaking stress values in the 6-8 megaPascal (mPa) range with 12 mP ...
... in the dry state impose high stresses upon the tissue material which require that the tissue material should possess equally high tolerance of these stresses. Typical valve leaflet tissue materials have ultimate tensile strength, or breaking stress values in the 6-8 megaPascal (mPa) range with 12 mP ...
Hydraulic Suspension Trouble Shooting Guide
... The slef leveling valves again have the similar fate of the struts, in that the o rings fail due to age. Longevity can be up to 10-20 years since the o~rings used are very small. Heat is not a factor in the rear valve since it is adequately cooled but the front valve is exposed to engine heat and fa ...
... The slef leveling valves again have the similar fate of the struts, in that the o rings fail due to age. Longevity can be up to 10-20 years since the o~rings used are very small. Heat is not a factor in the rear valve since it is adequately cooled but the front valve is exposed to engine heat and fa ...
67066d5ef22c412
... closing member, the movable part to block the flow, is a spherical ball. In some (but not all) ball check valves, the ball is spring-loaded to help keep it shut. For those designs without a spring, reverse flow is required to move the ball toward the seat and create a seal. They are commonly used in ...
... closing member, the movable part to block the flow, is a spherical ball. In some (but not all) ball check valves, the ball is spring-loaded to help keep it shut. For those designs without a spring, reverse flow is required to move the ball toward the seat and create a seal. They are commonly used in ...
VALVE CONTROLLED SYSTEMS
... The radial clearance between the valve and its housing is carefully controlled in the manufacturing process to levels of around 2 micron. The leakage through this space, even at high pressures, is small but for applications where it is essential that the actuator remains in the selected position for ...
... The radial clearance between the valve and its housing is carefully controlled in the manufacturing process to levels of around 2 micron. The leakage through this space, even at high pressures, is small but for applications where it is essential that the actuator remains in the selected position for ...
1 VALVE CONTROLLED SYSTEMS 1 Load characteristics
... The radial clearance between the valve and its housing is carefully controlled in the manufacturing process to levels of around 2 micron. The leakage through this space, even at high pressures, is small but for applications where it is essential that the actuator remains in the selected position for ...
... The radial clearance between the valve and its housing is carefully controlled in the manufacturing process to levels of around 2 micron. The leakage through this space, even at high pressures, is small but for applications where it is essential that the actuator remains in the selected position for ...
Numerical Investigation of Blood Flow through a Vein with Two
... play a key role in blood circulation. In the current study, the blood flow behavior through a section of Saphenous Vein containing two consecutive leaflet valves is investigated. Different opening percentages of downstream and upstream valve cusps is considered to study the blood flow regime. The bl ...
... play a key role in blood circulation. In the current study, the blood flow behavior through a section of Saphenous Vein containing two consecutive leaflet valves is investigated. Different opening percentages of downstream and upstream valve cusps is considered to study the blood flow regime. The bl ...
How Potable Water Rises to the Top of Skyscrapers - ASSE
... Cock Valve which extends the life of both. ...
... Cock Valve which extends the life of both. ...
subject: hydraulic check valves and flow
... The cracking pressure depends on the spring selected, its compression and the pressurized poppet surface area, and is generally between 0.5 and 3 bar, depending on the application. Valves with a low cracking pressure are used at present to by-pass a throttle position in one direction. When used as a ...
... The cracking pressure depends on the spring selected, its compression and the pressurized poppet surface area, and is generally between 0.5 and 3 bar, depending on the application. Valves with a low cracking pressure are used at present to by-pass a throttle position in one direction. When used as a ...
Valve
A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically valves fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure. The word is derived from the Latin valva, the moving part of a door, in turn from volvere, to turn, roll.The simplest, and very ancient, valve is simply a freely hinged flap which drops to obstruct fluid (gas or liquid) flow in one direction, but is pushed open by flow in the opposite direction. This is called a check valve, as it prevents or ""checks"" the flow in one direction.Valves have many uses, including controlling water for irrigation, industrial uses for controlling processes, residential uses such as on / off and pressure control to dish and clothes washers and taps in the home. Even aerosols have a tiny valve built in. Valves are also used in the military and transport sectors.Valves are found in virtually every industrial process, including water and sewage processing, mining, power generation, processing of oil, gas and petroleum, food manufacturing, chemical and plastic manufacturing and many other fields.People in developed nations use valves in their daily lives, including plumbing valves, such as taps for tap water, gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and poppet valves in car engines.In nature there are valves, for example one-way valves in veins controlling the blood circulation, and heart valves controlling the flow of blood in the chambers of the heart and maintaining the correct pumping action.Valves may be operated manually, either by a handle, lever, pedal or wheel. Valves may also be automatic, driven by changes in pressure, temperature, or flow. These changes may act upon a diaphragm or a piston which in turn activates the valve, examples of this type of valve found commonly are safety valves fitted to hot water systems or boilers.More complex control systems using valves requiring automatic control based on an external input (i.e., regulating flow through a pipe to a changing set point) require an actuator. An actuator will stroke the valve depending on its input and set-up, allowing the valve to be positioned accurately, and allowing control over a variety of requirements.