Reciprocating compressor air valve
Thread Content
As shown in the figure, how can one distinguish between the suction valve and the exhaust valve of a reciprocating compressor? Which one is the exhaust valve and which one is the intake valve?
Use an iron rod to press inward starting from the lock nut; if it can be pressed, it’s the intake, and if not, it’s the exhaust
What is the purpose of the pin-like small holes on the air valve?
The intake valve seat is located on the outside of the cylinder, while the exhaust valve seat is located on the inside of the cylinder； The one on top in the diagram is the intake valve, and the one below is the exhaust valve.
The one on top is the intake valve; the one on bottom is the exhaust valve. The valve cover is on top, and the locking nut is also on top. The spring seat is on bottom in the case of the intake valve, while in the case of the exhaust valve, the spring seat is on top and the locking nut is on bottom. The valve cover is on bottom for the exhaust valve.
Air enters from below and exits from above; when the small opening on the valve body is on the same side as the bolt and nut, it is for exhaust, while if it is on the opposite side, it is for intake.
It is a suction valve when the valve seat is on the side of the lock nut, and it is an exhaust valve when the lift limiter is on that side.