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Q: Why line contact between valve face and valve seat?
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Related questions

What is a line between 2 face?

It is an edge.


How do you install a check valve between water pressure tank and water pressure pump?

since check valve holds water in the line can a hand pump be installed between the check valve and water tank?


Would an in-line shutoff valve installed between the house and the meter decrease water pressure?

Not noticeably unless the valve is partially closed.


Where must a suction line be placed in a heat after a motor burnout?

between the comp and the reversing valve


In boiler feed water line whether a non return valve should precede or succeed the delivery valve of feed water pump?

In boiler feed water line the NRV is normally installed between Pump and stop valve if the line is short and an another NRV is installed at boiler entrance and after stop valve if the line is long or pump is 10 to 15 m away from the boiler.


What is the difference between laterognathy and laterocclusion?

laterognathy- its a condition in which the mid line of face and the mandibular mid line do not coincide at rest or in occlusion.laterocclusion-its a condition in which the mid line of face and the mandibular mid line coincide at rest but not in occlusion.


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.


Where must a suction line be placed in a heat pump after a motor burnout?

between the comp and the reversing valve


Is the water line open or closed when the ball valve handle is in line with the pipe?

When the handle is in line with the pipe, the valve is open.


What is the line on Oprah's face?

There's no line on Oprah's face. There's a line to see her face!


What is a refrigeration queen valve?

A queen valve is the service valve (isolation valve) located at the inlet of the liquid receiver (between the condenser outlet and the liquid receiver). The king valve is the service valve at the outlet of the liquid receiver (between the liquid receiver and the liquid line). Queen valves seem to be in use much less than king valves.


What temperature difference should be expected between the indoor line and the permanent suction -line ports on the reversing valve during the cooling cycle?

During the cooling cycle, a temperature difference of around 18-20°F is expected between the indoor suction line and the permanent suction line ports on the reversing valve. This temperature difference indicates proper operation of the system.