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Safety Valve Product Quality Checks Pass Rate 96.3% 2011-01-19
For the maintenance of infrastructure and the safety of construction workers, and promote the healthy development of valve industry
Give voters needed safety valve 2011-01-17
The Legislature is the dominant force in South Carolina's government and, no surprise, hasn't been willing to give the voters access to a statewide initiative process. For the sake of accountability,
Valve lubrication effect 2011-01-12
Valve trapezoidal thread, stem nut and stent sliding parts, bearings, gears and parts of meshing worm and worm parts and other parts, with activity takes good lubrication conditions and reduce the fri
End of Curve Operation requirement for Auto start pumps 2010-12-28
I would like to know that for all the AUTO START centrifugal pumps ( Open valve start up) , whether it should be designed for End of Curve operation?
NFPA 13R underground pressure testing 2010-12-28
I know that for a 13R sprinkler system the underground supply has to be pressure tested for 2 hours, however in the 2007 edition of NFPA 13R I can't find where it states that. In section 6.4.2 it talk
Zoning of systems??? 2010-12-28
It has come up recently by a fire inspector that you are required to match the fire alarm zoning per floor with the fire sprinkler system. Has any one come across this.
Butterfly type control valve wrongly inserted 2010-12-27
A large butterfly type control valve in a fuel-gas line has been installed in the wrong flow direction. Now, it will be difficult to extract the valve from the pipeline and turn it around because stru
Working Pressure vs. ANSI Class Rating 2010-12-27
What is the limiting factor of a Class 150 valve that has 125 psi working pressure stamped on it.