This article is about 04-SAMSS-002 which is about Globe Valves and download 04-SAMSS-002 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-002 PDF Download
04-SAMSS-002what are Globe Valves?
The 04-SAMSS-002 specification, in conjunction with the purchase order, establishes the minimum requirements for various types of globe valves used in industrial applications. These include steel, bolted bonnet, pressure seal bonnet, flanged, and butt-welding end globe valves, as well as angle globe, “Y” pattern globe, and globe stop check valves, all featuring outside screw and yoke (OS&Y) construction. These valves are applicable for nominal pipe sizes (NPS) 1 and larger in Classes 150 through 2500.
The primary purpose of the specification is to ensure the performance and reliability of globe valves in wet, sour liquid or gaseous hydrocarbon services, where exposure to corrosive hydrocarbons is expected. The specified design temperatures range from -18 to 400°C, encompassing a wide range of operating conditions commonly encountered in the oil and gas industry.
To cater to specific service conditions, the specification includes additional requirements covered in the following appendices:
- Appendix A: Pressure Seal Globe Valve
This appendix outlines the specific requirements for globe valves with a pressure seal bonnet design, providing enhanced sealing capabilities for high-pressure applications. - Appendix B: Low Temperature Services from -45 to -18°C
This appendix addresses the challenges of low-temperature applications, specifying the necessary design considerations and material requirements to ensure the valve’s proper functioning in extremely cold conditions. - Appendix C: Cryogenic Temperature Service from -120 to -46°C
For cryogenic applications with temperatures ranging from -120 to -46°C, this appendix sets stringent requirements to ensure the valve’s performance and integrity in extremely cold environments. - Appendix D: Steam Service
This section covers globe valve requirements for steam services, including specific considerations for high-temperature and high-pressure applications commonly encountered in steam systems.
In summary, the 04-SAMSS-002 specification plays a critical role in providing guidelines for selecting, designing, and manufacturing globe valves that can withstand harsh conditions within the oil and gas industry. By adhering to these requirements, operators and manufacturers can ensure the safe and reliable operation of globe valves in diverse applications, contributing to the overall efficiency and safety of industrial processes.
FAQs about Globe Valves
Answer: The 04-SAMSS-002 specification covers various types of globe valves, including steel, bolted bonnet, pressure seal bonnet, flanged, and butt-welding end globe valves, as well as angle globe, “Y” pattern globe, and globe stop check valves. All these valves feature outside screw and yoke (OS&Y) construction, ensuring a consistent design approach across the specified types.
Answer: The specified nominal pipe sizes for the covered globe valves are NPS 1 and larger. These globe valves are available in pressure classes ranging from Class 150 through Class 2500, catering to a wide range of applications with varying pressure requirements.
Answer: The globe valves covered by 04-SAMSS-002 are suitable for wet, sour liquid, or gaseous hydrocarbon services. They are designed to operate effectively within a temperature range of -18 to 400°C, making them capable of handling diverse operational conditions in the oil and gas industry.
Answer: The 04-SAMSS-002 specification addresses special service conditions through various appendices. These include Appendix A for Pressure Seal Globe Valves, Appendix B for Low Temperature Services from -45 to -18°C, Appendix C for Cryogenic Temperature Service from -120 to -46°C, and Appendix D for Steam Service. Each appendix provides additional requirements to ensure the globe valves’ suitability and performance in specific environments.
Answer: When selecting and designing globe valves, operators and manufacturers should adhere to the minimum requirements outlined in the specification. These considerations include material selection, construction methods, sealing mechanisms, and compliance with pressure and temperature ratings to ensure the valves meet the demanding needs of the oil and gas industry while maintaining safety and reliability in their respective applications.