MOMENTAN AUSVERKAUFT
Über dieses Produkt
Product Identifiers
PublisherSpringer
ISBN-101468466704
ISBN-139781468466706
eBay Product ID (ePID)175898292
Product Key Features
Number of PagesXviii, 490 Pages
Publication NameValve Selection and Specification Guide
LanguageEnglish
Publication Year2012
TypeTextbook
Subject AreaNon-Classifiable
AuthorR. Merrick
FormatTrade Paperback
Dimensions
Item Height0.4 in
Item Weight26.2 Oz
Item Length9 in
Item Width6 in
Additional Product Features
Intended AudienceScholarly & Professional
Number of Volumes1 vol.
IllustratedYes
Table Of ContentA Brief History of Valving.- The Use of Valves.- The Function of Valves.- 1 Valve Design and Specification.- Industry Codes and Standards.- Valve Material Selection.- Valve Specifications and Requirements.- Construction Details.- 2 Valve Construction.- Block Valves.- Throttling and Control Valves.- Nonreturn Valves.- 3 Operators and Actuators.- Displacement Actuators.- Solenoid Actuators.- Motor Actuators.- Manual Operators.- Signal Interface.- Positioners.- 4 Valve Procurement.- Bid Development.- Bid Evaluation.- What to Look for in Bids.- 5 Modification, Repair, and Troubleshooting.- Valve Modification.- Valve Repair.- Troubleshooting Valves.- 6 Valve and Actuator Sizing.- Sizing Examples-Manual Valves.- Sizing Examples-Manual or Remote-Actuated Valves.
SynopsisToday, people who specify or select valves spend over two-thirds of their time researching literature for information on valve sizing, availability, materials, and standards. This is nonproductive time. Unfortunately, most companies do not have the luxury of a team of experts with the necessary experience and education in all of the different fields that apply to valves. The next best alternative is to understand what valves are and all the things they can do. By definition, valves are devices that stop, start, mix, or change the direction and/or magnitude of the fluid flow, pressure, or its tempera ture. As a specifier or selector you will have to determine whether the valve is going to be used for flow control, throttling, or for on-off service. Then you will have to determine the cycle life or frequency of their operation. You will discover that valves are classified into three categories: on-off valves, control or regulator valves, and fixed valves such as orifice plate, nozzle, duckbill, rupture disk, blind valve, etc. These valves represent approximately thirty different design configurations. It has been said that if cost and delivery were no problem, anyone of the seven basic valve styles could do the job of any other one. But cost and delivery are very important factors in the real world. So you have to be able to distinguish among these seven styles: ball, butterfly, gate, globe, pinch/ diaphragm, plug, and poppet valves., Today, people who specify or select valves spend over two-thirds of their time researching literature for information on valve sizing, availability, materials, and standards. This is nonproductive time. Unfortunately, most companies do not have the luxury of a team of experts with the necessary experience and education in all of the different fields that apply to valves. The next best alternative is to understand what valves are and all the things they can do. By definition, valves are devices that stop, start, mix, or change the direction and/or magnitude of the fluid flow, pressure, or its tempera- ture. As a specifier or selector you will have to determine whether the valve is going to be used for flow control, throttling, or for on-off service. Then you will have to determine the cycle life or frequency of their operation. You will discover that valves are classified into three categories: on-off valves, control or regulator valves, and fixed valves such as orifice plate, nozzle, duckbill, rupture disk, blind valve, etc. These valves represent approximately thirty different design configurations. It has been said that if cost and delivery were no problem, anyone of the seven basic valve styles could do the job of any other one. But cost and delivery are very important factors in the real world. So you have to be able to distinguish among these seven styles: ball, butterfly, gate, globe, pinch/ diaphragm, plug, and poppet valves.
LC Classification NumberH1-99
