This guide offers information for utilizing the flexible butterfly valve in waterworks carrier. insurance contains tactics for calculating working torque, head loss, and cavitation. additionally incorporated are advised equipment for selecting actuator sizes, averting valve failure as a result of inner forces produced via water circulate and strain, decreasing noise, and fighting harmful vibrations.
Read or Download Butterfly Valves - Torque, Head Loss, and Cavitation Analysis PDF
Similar analysis books
Notational research is utilized by coaches and activity scientists to collect goal information at the functionality of athletes. strategies, strategy, person athlete move and work-rate can all be analyzed, permitting coaches and athletes to benefit extra approximately functionality and achieve a aggressive virtue. platforms for notational research have gotten more and more subtle, reflecting the calls for of coaches and scientists, in addition to advancements in know-how.
The speedily constructing box of structures biology is influencing many points of organic study and is predicted to rework biomedicine. a few rising offshoots and really expert branches in structures biology are receiving specific realization and have gotten hugely lively parts of analysis. This selection of invited reports describes many of the most recent state of the art experimental and computational advances in those rising sub-fields of platforms biology.
Knowing Language: An Information-Processing research of Speech conception, studying, and Psycholinguistics specializes in the development of ways, ideas, and practices concerned with speech conception, examining, and psycholinguistics. the choice first bargains info on language and knowledge processing, articulatory and acoustic features of speech sounds, and acoustic beneficial properties in speech belief.
- Multidisciplinary Methods for Analysis Optimization and Control of Complex Systems
- Analysis of Rare Categories
- Use of invariance condition in multiple-scale singular perturbation problems
- Advanced Complex Analysis: A Comprehensive Course in Analysis, Part 2B
- Mathematiques Analyse en 30 fiches
- SEC Guidance for Management's Discussion and Analysis
Extra resources for Butterfly Valves - Torque, Head Loss, and Cavitation Analysis
1993. Using Coefficients to Predict Dynamic Flow Torque for Quarter-Turn Valves. Journal AWWA 85:8 (August). , et al. 1989. Pumping Station &sign. Boston: ButterworthHeinemann. Sarpkaya, Turgut. 1961. Torque and Cavitation Characteristics of Butterfly Valves. Journal of Applied Mechanics 28 (December): 511418. E. Vivian. An Zntroductory Guide to Value Selection. London: MEP Limited. Tullis, J. Paul. 1989. Hydraulics of Pipelines. New York John Wiley & Sons. Tullis, J. M. Skinner. 1968. Reducing Cavitation in Valves.
The valve installation can also be affected by the actuator configuration. Conditions may favor orienting the handwheel or operating nut in a specific direction. If the desired actuator orientation does not match the required flow orientation, then the valve manufacturer should be consulted. Upstream Elbow or Branch Tee Elbows and branch tees cause asymmetrical flow velocity in the pipe (Figure 6-2) which affects butterfly valve operation. A length of straight pipe between the fitting and the valve equal to 8 times the pipe diameter is normally sufficient to provide normal flow through the valve.
E Energy calculations (annual cost) 25 F Flow coefficient (Cv ) 23 disturbances 5 resistance coefficient (Kv ) 24 This page has been reformatted by Knovel to provide easier navigation. ) throttling 43 turbulence 3 velocity 3 Flow testing basic system 34 and cavitation 3 and head loss 2 procedure 34 requirements 33 and torque 34f. 2 Free discharge installations 3 3f. 1 23 42 H Head loss and energy calculations (annual cost) 25 flow coefficient (Cv) 23 flow resistance coefficient (Kv) 24 and flow testing 2 formula 24 qualifications to calculation methodology 24 reason for calculating Head sources Hydrostatic torque 2 6 7f.
Butterfly Valves - Torque, Head Loss, and Cavitation Analysis