| 摘要 |
Reciprocating compressors used in oil and gas industry having valve assemblies in which valve closing members are attached to counter-seats and related methods are provided. A valve assembly includes an actuator providing a linear motion and a valve having (1) a valve seat 210 configured to allow a fluid to flow through the valve seat, via a inlet port, (2) a counter-seat 220 attached to the actuator and configured to allow the fluid to flow through the counter-seat, via a outlet port, and (3) a valve closing member 230. The valve closing member is attached to the counter-seat, located and configured to close the inlet port when the counter-seat is in a closed position. The counter-seat receiving the linear motion from the actuator, moves between the closed position and a second position corresponding to the inlet port being open thereby allowing the fluid to flow on a flow path including the inlet port and the outlet port. |
