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 pdf fileHydraulic Valves
Obj 9. Five types of directional control valves. Check valves; Rotary Valves; Pilot Operated Poppet Valves; Electro-hydraulic Valves; Spool Valves

File size: 206 KB
File type: ppt
Last download: Mon Nov 12, 2018 08:57:36 AM


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 pdf fileValve Selection for Compressor Surge Control
Surge is an aerodynamic flow instability which can lead to the catastrophic failure of the compressor system. One way to cope with this compressor flow instability is active control. For a laboratory-scale gas turbine installation, an active surge control system is proposed which consists of a plenum pressure sensor and a bleedhecycle valve. This work focuses on the selection of a control valve. More specifically, the required bandwidth and capacity of the valve are specified.

File size: 2.1 MB
File type: pdf
Last download: Mon Nov 12, 2018 11:39:33 AM


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 pdf fileValve Selection Guide
This ebook contains a guide to valve selection. Valves are installed in order to isolate, switch and control fluid flow in piping systems. Valve selection should be made based on the purpose of the fluid transport operation.

File size: 117.06 KB
File type: pdf
Last download: Mon Nov 12, 2018 09:06:00 AM


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 pdf fileVALVE SIZING SELECTION TECHNICAL REFERENCE
A Control Valve performs a special task, controlling the flow of fluids so a process variable such as fluid pressure, fluid level or temperature can be controlled. In addition to controlling the flow, a control valve may be used to shut off flow. A control valve may be defined as a valve with a powered actuator that responds to an external signal. The signal usually comes from a controller. The controller and valve together form a basic control loop. The control valve is seldom full open or closed but in an intermediate position controlling the flow of fluid through the valve. In this dynamic service condition, the valve must withstand the erosive effects of the flowing fluid while maintaining an accurate position to maintain the process variable.

File size: 324.78 KB
File type: pdf
Last download: Mon Nov 12, 2018 09:00:08 AM


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 pdf fileValve Symbols
Valve Symbols..

File size: 300 KB
File type: pdf
Last download: Mon Nov 12, 2018 08:52:04 AM


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 pdf fileVALVE FUNCTIONS AND BASIC PARTS
Valves are the most common single piece of equipment found in DOE facilities. Although there are many types, shapes, and sizes of valves, they all have the same basic parts. This chapter will review the common parts and functions of a valve.

File size: 993.05 KB
File type: pdf
Last download: Mon Nov 12, 2018 05:10:55 PM


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 pdf fileValve Sizing Calculations
FisherŪ regulators and valves have traditionally been sized using equations derived by the company.

File size: 1.13 MB
File type: pdf
Last download: Mon Nov 12, 2018 03:53:35 PM


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