One of the most important components of reciprocating compressors is its inlet and outlet valves.
In reciprocating compressors, these valves act like one-way valves, so that in the suction phase, the suction valve is open and the discharge valve is closed. In the compression and discharge phase, the suction valve should be closed and the discharge valve should be opened.
The working conditions of the compressor, pressure, flow rate, temperature, dimensional limitations, fluid, price, modern technology, etc. have caused a great variety of these valves in the industry.
Structural division of suction and discharge valves according to the type of leakage:
1- Flat leakage of valves
- Valves with simple metal rings
- Valves with ported metal rings
- Valves with a metal dis
- Valves with metal blades
- Valves with simple non-metallic rings
- Valves with ported non-metallic rings
- Valves with a non-metallic disc
2- Non-flat leakage of valves
- Valve with non-metallic rings with initial curvature
- Valves with non-metallic rings with full curvature
- Valves with non-metallic discs
- POPPET valves
After the emergence of advanced polymer materials including different grades of PEEK, these materials were used in various industries including reciprocating compressors and especially suction and discharge valves.
These materials became a good substitute for metals in making discs and rings of suction and discharge valves due to their high impact resistance, favorable resistance at compressor working temperature, Excellent resistance in corrosive environments, low density, and in special cases the coefficient of thermal expansion is close to metals.
01-00-HANDBOOK OF MATERIALS FOR PRODUCT DESIGN
01-05-Composite Materials and Processes
01-06-1-Natural and Synthetic Rubbers
01-06-2-Elastomeric Materials and Processes
01-10-Metallic Finishes and Processes
01-11-Plastics Joining Materials and Processes
01-12-Plastics and Elastomers as Adhesives
02-01-ASTM-A536-Ductile-Iron-Grades