We are in a situation of replacing multiple 16” 600# gate valves with ball valves installed on natural gas pipeline. Both type of valves has same face to face dimensions. Problem we are facing is that this pipeline is in a seismic fault zone and we have feeling that pipeline is under stress and...
My company is looking for alternatives to free pipeline (12 inch) gas from entrained solids upstream of valve station. Few years back this line was being used for transferring crude oil before switching it to gas. Line has been pigged more than one time after switching but instruments (including...
On our LPG/LNG facility we use sealless pumps for LPG, caustic soda and ammonia services ranging from 1-40 HP. LPG mag drive pumps (40 HP) were originally supplied with power monitors for pump protection against no/low/ high flows plus some other inherent mag pumps troubles.
Our I&E department...
As working on equipment filing structure for a recently owned company I found few things which I am not sure:
1: Equipment files for old ones like manufactured before late 1960s have no ASME U-1A forms. On the other hand , new equipments have there U-1A Forms and also national board number on...
As per regulatory compliance and safety concerns we need to set alarm setpoints for the maximum flow rate and response time if any leak detection occurs.
I read somewhere: In State of Washington, it is mandatory for all pipeline operators to be able to detect and locate leaks of 8 percent of...
Could anyone explain possible reason(s) for having more differential head through centrifugal pump than rated (more than shut-in pressure)for liquid butane service pumping from suction sphere. Flow rate is within the operating range as measured?
I would assume suction and discharge pressure...
Could I get guidance to find out the capacity of light hydrocarbon lines (butane) both for centrifugal pump suction and discharge piping?
What is the industry standard for maximum velocity and pressure drop limits. I know API RP 14E recommends 3 ft/sec and 9 ft/sec max for velocities for suction...
