IEC. First edition. Industrial-process control valves –. Part 2- 1: Flow capacity –. Sizing equations for fluid flow under installed conditions. IEC , Industrial process control valves –. Flow capacity – Test procedures. – IEC , Industrial process control valves –. Control valve data sheet. The current IEC standard for predicting aerodynam- ic noise in control valves regulating the flow of gases and va- pors is being revised by Working.
|Country:||Bosnia & Herzegovina|
|Published (Last):||23 December 2006|
|PDF File Size:||2.48 Mb|
|ePub File Size:||8.51 Mb|
|Price:||Free* [*Free Regsitration Required]|
Production tests for packing are generally not a standard deliverable from valve manufacturers. This second iex cancels and replaces the first edition published in and constitutes a technical revision that includes internal noise measurement.
As with fugitive emissions, there are many different seat leakage classes for control valves and isolation valves. Need more than one copy?
This email address is being protected from spambots. Take the smart route to manage medical device compliance. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.
IEC | IEC Webstore | water management, smart city
The oec is a uniform method of measuring the radiated noise from the valve and the associated test piping including fixed flow restrictions through which the test fluid water is passing.
This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Due to the nature of the floating ball valve, which uses process pressure to obtain shutoff, the low pressure test helps validate sealing in these minimal pressure conditions. Durchflussleistung Bemessungsgleichungen fuer Fluide unter Einbaubedingungen.
Manufacturing 21st Century Style: API and are two common isolation valve standards. Find Similar Items This product falls into the following categories.
Learn more about the cookies we use and how to change your settings. As the voice of the U. These do not correspond to a pressure rating in psi. New Washer Application Search Tool.
Specifying an unintended standard to an application may also add unnecessary cost and lead time to replacement or repair of a critical loop. Rate A is a true, zero-leak test, while rate D seems to be intended more for metal-seated constructions. One of the most popular interpolated ratings is CL due to the large size difference between a Class and valve.
Iecc are, however, very different standards intended for different valves. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for iev standards. This makes sense as a control valve is tested to much higher cycle rates because it should inherently cycle more often in tracking a set point.
IEC – Estonian Centre for Standardisation
One of 660534 most common standards that comes up on every specification sheet is the pressure class. Worldwide Standards We can source any standard from anywhere in the world.
Upcoming Valve Industry Events Reprints. It would be inappropriate to see API specified for a metal-seated valve. Emerson to Automate Sonatrach Gas Processing.