Products/Services for Mac Valve Definition
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Check Valves - (1952 companies)Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. Check valves are self-activating safety valves...Valve TypeSevere Service RatedBack Flow Preventer Assembly -
Packing Hooks and Extractors - (30 companies)Packing hooks and extractors, also referred to as packing pullers, are tools that extract used packing material from pumps and valves. Packing hooks and extractors, also referred to as packing pullers, extract used packing material from pumps...
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Solenoid Valves - (1022 companies)Solenoid valves are devices that use a solenoid to control valve activation. They are considered electromechanical control devices used to control liquid or gas flow. An electrical current runs through a coil to control the valve by moving a plunger... -
Hydraulic Valves - (684 companies)Hydraulic valves contain and transfer the flow and pressure of hydraulic fluid in hydraulic power systems. They range from simple shutoff valves to precision control valves. In their unpowered state, hydraulic valves can be normally open (open... -
Butterfly Valves - (1270 companies)Butterfly valves control flow through a circular disc or vane by turning the valve's pivot axis at right angles to the direction of flow in the pipe. They are normally used as throttling valves to control flow. Butterfly valves are quarter-turn... -
Gas Valves - (535 companies)Gas valves are used to handle and control the flow of gaseous media such as liquefied petroleum and natural gas. They are made of metal or plastic and vary in terms of valve size, pressure rating, number of ports, and flow. Gas valves are flow...
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Gate Valves - (1164 companies)Gate valves and knife valves are linear motion valves in which a flat closure element slides into the media stream to shut off flow. Gate valves (also known as knife valves or slide valves) are linear motion valves in which a flat closure element...
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Globe Valves - (794 companies)Globe valves are linear motion valves with rounded bodies, from which their name is derived. They are widely used in industry to regulate fluid flow in both on/off and throttling service. As their name suggests, globe valves are linear motion valves...
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Ball Valves - (2115 companies)Ball valves are quarter-turn, straight-through valves that have a round closure element with matching rounded seats that permit uniform sealing stress. The valve gets its name from the ball that rotates to open and close the valve. Ball valves...
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Valve Actuators - (914 companies)Valve actuators mount on valves and, in response to a signal, move a valve to a desired position using an outside power source. Selecting the correct valve actuator will increase uptime, reduce maintenance costs, and increase plant safety. Most...
Product News
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Insaco, Inc.
ZIRCONIA vs. MACOR Zirconia Toughened Alumina (ZTA). Alumina (Al2O3) is one of the most widely specified, general-purpose technical ceramics. All aluminas are very hard and wear resistant, with high compressive strength even against extreme temperatures and corrosive environments. Aluminas are also excellent electrical insulators and are gas tight. Blends of zirconia with alumina such as ZTA have a performance combination that is tougher than alumina alone, but with improved hardness, strength and thermal... (read more) -
Shenzhen Great Precision Ceramic CO., LTD.
Machinable Glass Ceramic (Macor Ceramic) cm ^3 with some self-lubricating properties. Typical Properties. Property. MGC / Macor. Density. 2.48?g/cm ^3. Compressive Strength. 508 MPa. Flexural Strength. 91.5 MPa. Elastic Modulus. 65 GPa. Thermal Conductivity. 1.71 W/(m .K). Coefficient of Thermal Expansion. 7.38 x10?? / C. Dielectric Constant. 5.7 (1 MHz). Dielectric Strength. 43.4 kV/mm. Volume Resistivity. > 10 ^1? O .cm. Typical Applications. Aerospace: Thermal insulation components, sensor housings. Semiconductor / Electronics: Wafer... (read more)Browse Industrial Ceramic Materials Datasheets for Shenzhen Great Precision Ceramic CO., LTD. -
3X Ceramic Parts Company Limited
Machinable Glass Ceramic Macor Rod Machinable Glass Ceramic Macor Rod. Machinable ceramic materials have excellent electrical insulation performance (electric breakdown reaches 40kv/a per millimeter), high mechanical strength, and resistance to quenching and heating (resistance to freezing and heating from minus 200 degrees to 800 degrees, and are widely used in welding fixtures, optical glass forming molds, etc.). Its corrosion resistance is also better than ordinary ceramics. Its excellent corrosion resistance makes it applied... (read more)Browse Glass Ceramics Datasheets for 3X Ceramic Parts Company Limited -
Envirco
MAC-T Ceiling Grid System The Envirco cleanroom ceiling solution, a 2 " Gasket Seal Grid Cleanroom Ceiling System, is fabricated using superior materials to provide a structural grid system and to include zinc alloy die-castings. The building block of a cleanroom ceiling grid system is the connection and suspension system. Envirco offers a true, extruded aluminum 2" cleanroom ceiling system. It is the most cost efficient system for cleanroom classes for ISO 8 (Class 100,000) to ISO 5 (Class 100), or for any full HEPA... (read more)Browse Air Filters (industrial) Datasheets for Envirco -
Envirco
A Second Generation FFU: The MAC 10® LEDC Product Data Sheet (2x4). Product Data Sheet (4x4). MAC 10 (R) LEDC Fan Filter Unit. A Second Generation FFU. The MAC 10 (R) LEDC features the most control options and the most versatile control system available on the market today, while topping the industry in energy efficiency. The MAC 10 LEDC comes standard with the filter integral with the unit housing, while roomside replaceable filters, motor blower, and now controls are available. Roomside Replaceable Controls (RSRC). Roomside... (read more)Browse Cleanrooms Datasheets for Envirco -
Envirco
MAC 10® Original Pro Fan Filter Unit The MAC 10 (R) Original Pro fan filter unit model is a low noise, low power consumption solution with one of the lowest height profiles available in the market. It delivers the same trusted performance as the MAC 10 (R) Original with an improved cabinet design and features: * Less than 13 inches tall (330mm) for low profile installations. * Measures 51dBA sound levels mimimizing unit noise. * Rated at 305 watts at 90 FPM with Forward Curved Centrifugal Fan. for lower operating costs. * Robust... (read more)Browse Cleanrooms Datasheets for Envirco -
Envirco
MAC 10 Original Fan Filter Unit The MAC 10 (R) Original fan filter unit (FFU). The MAC 10 (R) Original fan filter was the first to combine low sound, lower watts, and a low profile. The MAC 10 (R) Original Standard provides one of the lowest sound levels of any FFU in the industry measuring at 51 dBA. The Original runs at only 310 watts at 90 FPM and uses less energy than older, traditional fan filter units which lowers operating costs. The MAC 10 (R) Original does all this while maintaining a low profile, measuring less than... (read more)Browse Cleanrooms Datasheets for Envirco -
Insaco, Inc.
ZIRCONIA vs. MACOR Field Test Comparison Watch > >ZIRCONIA vs. MACOR...in the battle of fracture toughness!!!. Zirconia Toughened Alumina (ZTA). lumina (Al2O3) is one of the most widely specified, general-purpose technical ceramics. All aluminas are very hard and wear resistant, with high compressive strength even against extreme temperatures and corrosive environments. Aluminas are also excellent electrical insulators and are gas tight. Blends of zirconia with alumina such as ZTA have a performance combination that is tougher than... (read more) -
Epilog Laser Corp.
Control equipment through Mac operating systems Epilog Laser Launches Epilog Pulse: New App allows users to control equipment through Mac operating systems. Epilog Laser, the leading producer of CO2 and fiber laser engraving, cutting, and marking systems, is excited to announce the company has developed a new application, Epilog Pulse, which allows users to control their equipment from nearly any device - including those with Mac operating systems - without having to install anything. "This revolutionary enhancement has been a long time... (read more)Browse Laser Processing Equipment Datasheets for Epilog Laser Corp. -
Envirco
MAC 10 Original FFU: Quiet, Efficient, Compact Product Data Sheet. Product Comparison. MAC 10 (R) Original Fan Filter Unit. Extra low watts, sound, and profile. The Envirco (R) MAC 10 fan filter unit, was the first (FFU) to combine low sound, low watts and a low profile. Measuring only 51 dBA, the MAC 10 Original Standard (2 ft x 4 ft [600 mm x 1,210 mm]) provides one of the lowest sound levels of any FFU in the industry. Running at only 310 watts @ 90 fpm, the unit uses less energy than traditional FFUs, lowering operating costs. The MAC... (read more)Browse Cleanrooms Datasheets for Envirco
More Information
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Is the Presence of Mitral Annular Calcification Associated with Poor Left Atrial Function?
tioned between the mitral valve leaflet tips in diastole.12 MAC was defined as a dense highly reflective area at the base of the posterior mitral leaflet in the parasternal short-axis view.12,13,16 MAC .
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Caseous Calcification of the Mitral Annulus: A Review
Mitral annular calcification ( MAC ) is defined as chronic degeneration of the mitral valve fibrous ring involving mainly the posterior annulus.
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Handbook of Cerebrovascular Disease and Neurointerventional Technique
(d) MVP, MAC , aortic valve disease: risk is not well defined .
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Mitral and aortic valve sclerosis/calcification and carotid atherosclerosis: results from 1065 patients
MAC was defined as the presence of calcium at the mitral valve annulus.
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Surgical removal of calcified amorphous tumor localized to mitral valve leaflet without mitral annular calcification
tumors localized to the mitral valve leaflet, the specific determination of the presence or absence of MAC help to define the surgical indication.
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Mitral and aortic valve sclerosis/calcification and carotid atherosclerosis: results from 1065 patients.
AVS and MAC were defined as focal areas of increased echogenicity and thickening of the aortic leaflets or mitral valve annulus.
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Association between mitral annular calcification and stroke.
MAC was defined as a dense, localized, highly reflective area larger than 5 mm at the junction of the atrioventricular groove and posterior mitral valve leaflet.
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Mitral annulus calcification is not an independent risk factor for stroke: a cohort study of 657 patients
… as bright echoes from the mitral annulus on a two-dimen- sional echocardiogram with „stone-shadow“; mitral stenosis ( de- fined as rheumatic valvular disease … … increased velocities over the valve and a mitral valve … … rheumatic valvular disease if MAC and fibrosis of the …
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ColVa1 and ColXIa1 are required for myocardial morphogenesis and heart valve development
ColVa1 and ColXa1 are ex- pressed in the heart valves and myo- cardium, yet their roles in collagen fibril formation and regulation have not been defined (Yoshioka et al., 1995; Jane-Lise et al., 2000; Mac - Kenna et al., 2000).
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Abstracts
The exclusion criteria were prosthetic valves , severe regional wall motion abnormality, significant regurgi- tation (MR and/or AR), severe mitral annular calcification ( MAC ), non-sinus rhythm, paradoxical septal motion and poor endocardial line definition .
