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What is meant by expansion joint and Where expansion joints are used in refinerieswhythis type joint used now?
Expansion joints are used on long runs (over 100 feet) of pipe or ducts where the expansion of steel will create stress on the pipe or its supports. for every 1 degree change in metal temperature the pipe will expand 6 millionths of a foot per foot of length. on a steam pipe 400 foot long carrying 750 degree steam this expansion would amount to a change in length of the pipe of 1.632 feet. this could tear down the supporting structure if this expansion weren't relieved by an expansion joint every 100 feet. expansion joints could be flexible corrugated pipe, reinforced rubber sheet, sliding pipe joints, or expansion loops, among other things.
Is short radius bend is suitable for steam pipeline?
Sure it is. You need to know, however, where to use it. for long runs of pipe with bends, it would be preferable to use long radius ells, to prevent excessive flexing of the fitting as the pipe expands and contracts due to thermal expansion. However, in short runs (less than 50 feet (or 15 meters)) of straight pipe without expansion joints and less than 300 degrees F (170 C) differential temperature, (steam temp. minus ambient temp.) short radius bends (or elbows) are more than adequate. As the diff. temp. increases the straight runs of pipe should be decreased in length, or expansion joints installed, to prevent excessive flexing at the joints and fittings.
Can a valve be installed at the end of steam expansion loop?
Yes. The expansion loop is only there to take up the thermal expansion of the pipe run, installing a valve will not impede the action of the loop.
Who invented the 's' bend pipe and why?
Eli Whitney after he developed the steam engine to allow for the coefficient of expansion per degree of temperature changes also called an expansion loop
What is a glass pipe steam roller?
a pipe that is a steam rolled a tube with a boll in the middle of it
What is the formula on speed and height through a steam pipe?
What is the formula for speed and height thru a steam pipe
What is the effect of water pressure at the pipe joints?
Water constantly exerts pressure on pipe joints. I have seen old soldered joints flying apart when subjected to extreme pressure or trains passing nearby. This sometimes happens with plastic pipe also if joints are not thoroughly set .
What are the Advantages of throttling calorimeter?
An instrument utilizing the principle of constant enthalpy expansion for the measurement of the moisture content of steam; steam drawn from a steam pipe through sampling nozzles enters the calorimeter through a throttling orifice and moves into a well-insulated expansion chamber in which its temperature is measured. Also known as steam calorimeter.
Materials used to seal joints steam pipes?
it will be depend on the application, however following material are generaly used for pipe sealing -asbestos sheed - PTFE -composite sheet(Rubber+asbestos)
Piping system?
Pipe Expansion Joint
What is the best thread dressing for galvanized to PVC pipe joints?
Pipe dope and/or teflon tape
Does well water affect quest pipe?
No, Qwest pipe and joints are OK with well water
