Hi all,
My plants instrument air header is designed for 150 psi and operates at around 100 psi. The IA is then typically let down to 50 psi or so by a small regulator when used for valve actuators or pneumatically driven pumps. I assume that if you connect a typical control valve diaphragm...
Hi all,
I have come across a conventional relief valve that has challenged my understanding of API 520, so I am here to ask for some insight.
Set Pressure: 2500 kPag
Constant Superimposed Back Pressure: 2100 kPag
Variable Superimposed Back Pressure: 20 kPag
Built-Up Back Pressure: negligible...
As many of us are aware, ASME Sec VIII Div 1 UG-136(a)(3) requires relief valves in air, water exceeding 140°F (60°C), and steam service to have a lifting lever. My question is does anyone know why these specific services require a lifting lever but not others?
I am aware of code case 2203, in...
Has anyone heard of oversizing insulation on a deadleg to provide an air gap between the piping and the insulation? I'm evaluating a project to cut off a nuisance 2" drain off a 20" high pressure steam header. My plan is to cut it off as close as possible to the header and cap with a closure...
