API 602 Flanged Globe Valve Stainless Steel Class 150

Key Features

• Stainless Steel Body Construction: Provides corrosion resistance in compatible process environments. The exact stainless steel grade should be selected according to fluid composition, concentration, temperature and potential contaminants.
• API 602 Design Reference: The product’s API 602 designation provides a reference for the applicable valve design and construction requirements. The standard edition, valve configuration and documentation requirements should be identified in the purchase specification.
• Class 150 Pressure Designation: Allows selection within a defined pressure–temperature rating system. The permissible working pressure depends on the material grade, operating temperature and applicable rating table.
• Flanged End Connections: Provide detachable connections to compatible piping and equipment. Flange dimensions, facing, surface finish, gaskets and bolting should match the installation requirements.
• Stem-Operated Closing Action: The stem transfers operating force to bring the disc into contact with the seat. Shut-off performance depends on the seating design, material condition and specified leakage acceptance criteria.
• Flow Adjustment with Suitable Trim: A regulating disc can provide progressive changes to the flow passage. Continuous throttling requires assessment of pressure drop, flow velocity and the potential for cavitation, noise or erosion.

Applications

• Chemical Processing: An option for compatible chemical transfer and auxiliary process lines where the selected stainless steel grade and sealing materials meet the fluid requirements.
• Petrochemical and Oil and Gas Facilities: Can be considered for suitable process and utility duties within the valve’s pressure–temperature limits. Sour-service requirements, where applicable, should be specified separately.
• Steam and Condensate Systems: Applicable to selected steam isolation and condensate duties after confirming temperature limits, seating materials, packing and gasket suitability.
• Industrial Water Systems: Suitable for consideration in compatible process-water, cooling-water and utility-water piping. Water chemistry should be evaluated when selecting the stainless steel grade.
• Equipment and Process Skids: A practical option for flanged equipment connections requiring local isolation and access for maintenance.
• Plant Maintenance and Replacement: Can be considered where the existing valve’s pressure class, flange details, face-to-face dimensions and required function can be matched.

Materials and Construction

• Body: The stainless steel body forms the main pressure boundary and internal flow passage. Its ASTM material grade and manufacturing form should be confirmed in the material specification.
• Bonnet: Closes the upper body opening and supports the stem assembly. The bonnet joint design, material and sealing arrangement should follow the approved construction drawing.
• Disc and Seat: Form the internal shut-off interface. Their materials, geometry and any specified hardfacing influence sealing performance, wear resistance and suitability for regulation.
• Stem: Transmits operating movement and closing force to the disc. Stem material selection should consider corrosion resistance, mechanical strength and resistance to wear or galling.
• Stem Packing: Limits external leakage around the moving stem. Packing material should match the fluid and temperature requirements; any fugitive-emission qualification should be confirmed separately.
• Bonnet Joint Sealing: The joint sealing arrangement should suit the confirmed bonnet construction and operating conditions. Gasket materials and fasteners, where used, should follow the approved specification.
• Flanges: Connect the valve to the pipeline. Confirm the applicable flange standard, pressure class and facing independently from the valve’s face-to-face dimensions.