Above what pressure (or degree of superheat) would a steam leak be mostly invisible and become an additional risk to personnel walking in the area.
Is there any covering which would aid in detection or protection from such a leak? (ie a covering that would change colors when exposed to the high...
An employer can always stop sending work to another company. That is perfectly legal. Blatantly coercing an individual with monetary retribution sounds like extortion or maybe big business:) Anyone with a legal degree out there?
Call the valve manufacturer ie. ROVALVE, SALINA VORTEX. There are two ways to do what you are looking for. A spring return, which for a slidegate may get pretty big, or an auxilary air cylinder and solenoid that is activated on loss of air pressure to supply a double acting cylinder to close...
The test requirements depend on the Piping Code that you are designing the system to. B31.3 Process Piping Code gives guidance on Hydraulic or Pneumatic testing pressures based on the pressure of the pipe, material strength and temperature. My philosopy is to use hydrotest unless the water...
Can you clarify this a little? You have a horizontal tank with a nozzle connected to a pipe on one end which is then connected to a valve.
If the whole assembly is pressurized and the valve is closed, you have no net external forces and the assembly is not being pushed or pulled anywhere. The...
I have installed Rite-Hite Dok-Locks. The supplier is Arbon Equipment. You can find a web site with their locations. We bought the hook style and it had enough height adjustment to take a number of different trailers. In one place where there wasn't room for a hook style, we have a wheel...
When vaporizing fluid in a heat exchanger around tubes, there are three types of boiling. With Tube temp @ saturation, you get pool boiling or without bubbles. This in mainly convective. (The film coefficient would be the samed as convection)
At temperatures greater than saturation...
If you would like to go a little cheaper. AFT Fathom will do a very adequate network flow analysis and allow you to put the pump curve in and iterate to the system curve. Its also user friendly, You may not have to open the manual.
There is also a little program put out by the makers of the...
Haven't seen a jacketed one that big or rectangular.
As for the inspections, every one of our vessels is inspected per ASME when fabricated (which includes UT or x-ray, and is only inspected visually for leaks or evidence of damage annually per the Virginia State Regulations and company...
If you haven't ruled out other packages,you might want to try BJAC, Hetran, (part of ASPEN) This package will do the process side as well as the mechanical design of heat exchangers (Teams) and will give you all the drawings required for fabrication of the equipment as well as the tube layout...
TEMA heat exchanger manual is a start. There is a little bit of information in Mechanical Design of Process Systems, Gulf Publishing. Basically, they can be two or more sets of rings with rods that run vertically in one direction and horizontally in another. They dampen the vibration the same...
If in the US, the state that the vessel resides usually has a document called Boiler and Pressure Vessel Rules and Regulations. This is the governing document and it lists all the requirements or codes for design, construction, testing, and inspection within that state. This document will lead...
I am looking for properties of nitrogen and water vapor at pressures up to the 50 psig range for drying gas and convey problems. Does anyone know of a good resource for this data?
I think you are asking for the maximum support spacing for a 60" dia pipe. I haven't used the D/t as a design factor before. Normally, you will model the pipe as a beam and calculate the spacing that will give a maximum stress of 2300 psi (std wt CS) and a sag of no more than 0.1"...
At what temperature is insulation required on pipes/equipment for personal protection. We use 120F but do not know the source. OSHA says they can fine you if someone gets hurt but will not commit to a temperature. They refer you to a Chemical Engineering Magazine article that is out of print...
