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Part I-Sizing and Selection
Downstream Segment
API STANDARD 520 EIGHTH EDITION, DECEMBER 2008
huddling chamber: An annular chamber located downstream of the seat of a pressure relief valve for the purpose of assisting the valve to achieve lift.
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Which safety valve should be set to discharge at lower pressure drum safety valve or super heater safety vlave?
The Superheater safety valve must be the lowest set safety valve on any boiler, in order that flow through the superheater is maintained.If the drum valve were set lower the flow through the superheater would be disrupted on an overpressure.
What is Difference between relief valve and safety valve?
Relief valve always position in the suction line in oreder to relief the extra pressure, while safety valve is always placed at discharge line to release excess pressure.I would take that one step further by stating that a " RELIEF VALVE" is one that is "meant" to be lifted off its seat, as opposed to a "SAFETY RELIEF VALVE" which is not!DIFFERENCE BETWEEN RELIEF VALVE AND SAFETY VALVE:1. Releif valve is applicable in the fluid system.safety valve is applicable in the gaseous system.2.Relief valve opening is directly proportional to the pressure rise.Safety valve opening is will happen at after reaching the setpressure.3.Mode of relif vlave line is again connected to the suction.But in the safety valve is just vent-out there is no connection tosuction.
Why is to safety valve mounted on boiler drum?
the safety valve is mounted on the top of drum because, if the water level in boiler decreases a certain value, the temperature gets increased in water drum because of lack of water. So, increase in temperature result in high pressure in steam drum, as the safety valve is designed to withstand a certain pressure, after a cetain pressure, the safety valve is removed by high pressure of steam. this is why the safety valve is mounted on top of boiler drum. +++ Shall we sort out that lot? That answer is wrong. Its only link with water-level is that the valve has to be above the water anyway. If the boiler runs dry the safety-valve will not protect it. The safety-valve is there to prevent the steam pressure rising to a potentially a dangerous level. It is set to open at the boiler's designed working pressure.
Why is a throttling valve called an expansion valve?
It is not.. A globe , needle , ball valve are used for throttling For expansion either a shock absorber , diaphragm tank or air chamber are used to allow for expansion
What is mean by cold chamber die casting machine?
cold chamber die casting machine can be divided into the direction of the direction of the flow of fluid in the hydraulic system used to control or regulate the pressure and flow valves, pressure valves and flow control valve three categories. A same shape as the valve, because of the different mechanisms of action have different functions. Pressure valve and flow valve with a throttle effect of the flow passage cross section to control the system pressure and flow direction valve replacement of the flow passage control the oil flow direction.
What are the safety of boiler safety valve?
Safety valve simmering how can setting
What will you find on a pressure cooker a safety pin b safety jacket c safety valve?
safety valve
When was Huddling Place created?
Huddling Place was created in 1944.
In the heart the valve between the right lower chamber and its vessel is what valve?
The valve between the right lower chamber of the heart (right ventricle) and its vessel (pulmonary trunk) is the pulminary semilunar valve.
What is different between pressure safety valve and temperature safety valve?
Pressure safety valve-are the valve who are designed such that it can control the pressure , like in the water blowers etc,and Temperature safety valve are those who are used to regulate the temperature like, in water boilers.
How does huddling help penguins to stay warm?
by huddling they sharing their body heat
What is the intake and exhaust valve purpous?
The fuel/air mixture passes through the intake valve to get into the combustion chamber. After combustion, the spent gasses travel out of the combustion chamber through the exhaust valve.
Which safety valve should be set to discharge at lower pressure drum safety valve or super heater safety vlave?
The Superheater safety valve must be the lowest set safety valve on any boiler, in order that flow through the superheater is maintained.If the drum valve were set lower the flow through the superheater would be disrupted on an overpressure.
What is the function of an intake valve?
The intake valve opens to allow the fresh charge of air and fuel into the combustion chamber then closes to seal the chamber during compression.
What chamber does the Aortic semilunar valve protect?
Check
Where is the carburetor needle valve?
It is in the float chamber of the carburetor.
This heart chamber pumps blood through the aortic semilunar valve?
pulmonary semilunar valve
