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www.eng-tips.com/viewthread.cfm?qid=265941

WOG or CWP Valve for Steam WOG or CWP Valve for Steam colar (Mechanical) (OP) 23 Feb 10 19:46. I have an existing system that needs evaluation for compliance to B31.3 (as referenced by our local boiler code). The system is a deaerator for boiler feed water. One thing I have noted is that all of the ball valves on the unit do not have WSP ratings.

www.nibco.com/FAQ/Tech-Services

CWP: Cold Working Pressure: This designates the maximum non-shock pressure a product can operate at. “Cold” is generally defined as a range between -20°F to 100°F. WOG: Water, Oil and Gas: This was an older, generic pressure rating call-out which has been largely replaced by CWP (see above).

www.plbg.com/forum/read.php?1,306131

Re: What does WOG stand for on valves; Author: redwood (CT) The 200 WOG is a class rating that corresponds to the pressure specifications of ANSI 16.34. The valve is capable of many different pressures with different materials and temperatures. To fully comprehend its meaning you probably have to get a copy of the ANSI Spec.

diy.stackexchange.com/questions/135957/what-is-the-wog-rating-for-valves

“Cold” is generally defined as a range between -20°F to 100°F. WOG: Water, Oil and Gas: This was an older, generic pressure rating call-out which has been largely replaced by CWP. In this designation, “Gas” refers to any non-flammable, compressible fluid in a gaseous state. It does not imply a product’s suitability or third-party ...

www.qrfs.com/blog/138-fire-safety-valve-pressure-ratings-wog-vs-wsp-vs-psi

Fire safety valve pressure ratings matter when choosing a valve for fire sprinkler and standpipe systems. QRFS reviews the differences between more than ten common terms manufacturers use to describe valves' pressure ratings, including WOG (Water, Oil, Gas), WSP (Working Steam Pressure), and PSI (Pounds per Square Inch).

www.reference.com/world-view/wog-rating-valves-dda4f4b49f12f9

The WOG rating stands for water, oil and gas and indicates the maximum pressure per square inch that the valve can take. Each valve is given a WOG rating, which should not be exceeded. Each different material that the valve is mad of has different limits in temperature and pressure.

www.flowcontrol.no/mwp-maximum-working-pressure-or-cwp-cold-working-pressure

MWP – Maximum Working Pressure or CWP (Cold Working Pressure) The maximum working pressure (pounds per square inch) at which a valve can be operated. The. maximum working pressures for various pressure classes, per Table 2.1 ot`API-GD, within temperature limits of —20°F and +100°F, are as follows:

groups.google.com/d/topic/alt.home.repair/11BEmOY9Ihc

Ball valves are the only type I use for natural gas. NG suppliers treat corrosive "sour gas" to keep it out of the domestic distribution network. ^_^

www.engineeringtoolbox.com/valves-abbreviations-d_905.html

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www.processandsteam.com/PSSpdfs/Flow+BallValves2013WEB.pdf

• 1, 2 and 3 piece ball valves, known as our B Series. • Floating flanged ball valves offered in 150, 300 and 600 pressure classes, known as our Z Series. • Trunnion ball valves, known as our T Series. • A wide variety of butterfly valves, known as our BF Series. • Strainers and check valves. • Valve position monitors.