This article is about 04-SAMSS-005 which is about Check Valves, Swing Type and download 04-SAMSS-005 PDF for Mechanical, Electrical, Instrumentation, Telecom, Piping, Civil, Paints and Coatings, Process, Plumbing Engineers, supervisors and project managers, QCs, QC Supervisors.
This is material specification of saudi aramco standards of based on international codes and standards and useful for all types of industrial engineers who are working and wants to work in plants and refineries and big building projects as engineers, QC Supervisors and QC managers, Engineering managers and technicians.
04-SAMSS-005 PDF Download
04-SAMSS-005Check Valves, Swing Type
The 04-SAMSS-005 specification, in conjunction with the Purchase Order, outlines the minimum requirements for steel swing check valves in 2 inches nominal pipe size (NPS) and larger, covering ASME Classes 150 through 2500. These swing check valves are designed for use in various industrial applications, particularly in wet, sour liquid, or gaseous hydrocarbon services, where exposure to corrosive hydrocarbons is expected.
The primary focus of this specification is to ensure the reliability and integrity of swing check valves while accommodating a wide range of operating conditions. The valves must be suitable for service temperatures ranging from -18°C to 400°C, making them capable of handling diverse temperatures typically encountered in the oil and gas industry.
The specification includes additional requirements for specific service conditions in various appendices:
- Appendix A: Low Temperature Service from -45 to -18°C
This appendix addresses the challenges associated with low-temperature applications and provides the necessary design considerations and material requirements to ensure the swing check valves’ proper functioning in extremely cold conditions. - Appendix B: Cryogenic Service from ±46°C and below
For cryogenic applications with temperatures at or below ±46°C, this appendix sets stringent requirements to ensure the valves’ performance and integrity in extremely cold environments. - Appendix C: Steam Service
This section covers swing check valve requirements for steam services, including specific considerations for high-temperature and high-pressure applications typically encountered in steam systems. - Appendix D: Pipeline Service from -18 to 120°C
This appendix addresses swing check valve requirements for pipeline services operating within the temperature range of -18°C to 120°C.
By adhering to the 04-SAMSS-005 specification and its appendices, manufacturers and operators can confidently select, design, and use steel swing check valves that meet the rigorous demands of the oil and gas industry. These valves can effectively prevent backflow, maintain system integrity, and contribute to the overall efficiency and safety of industrial processes under varying temperature conditions.
FAQs about Check Valves, Swing Type
Answer: The 04-SAMSS-005 specification covers steel swing check valves in 2 inches nominal pipe size (NPS) and larger, available for ASME Classes 150 through 2500. These swing check valves are designed with a bolted bonnet, flanged, and buttwelding end construction.
Answer: The swing check valves specified in 04-SAMSS-005 are designed for use in wet, sour liquid, or gaseous hydrocarbon services. They are intended to operate within a design temperature range of -18°C to 400°C, making them suitable for various applications in the oil and gas industry.
Answer: The appendices provide additional requirements for special service conditions that swing check valves may encounter. Appendix A addresses low-temperature service, Appendix B covers cryogenic service, Appendix C pertains to steam service, and Appendix D addresses pipeline service. These requirements address specific challenges associated with each service condition, ensuring the valves’ performance and reliability in diverse operating environments.
Answer: Swing check valves are designed to prevent backflow in a piping system. When fluid flows through the valve in the forward direction, the disc swings open to allow flow. If the flow reverses, the disc swings closed under the influence of gravity and fluid pressure, preventing backflow and protecting downstream equipment.
Answer: Adherence to the 04-SAMSS-005 specification ensures that swing check valves are designed and manufactured to meet the specific requirements of the oil and gas industry. By using compliant valves, operators can improve the safety, reliability, and efficiency of their piping systems while mitigating the risks associated with backflow and handling diverse service conditions.