API6D Flanged Ball Valve 2-PC Stainless Steel Class 150

Key Features

• API 6D Design Reference: The published specification identifies API 6D as the design standard. The purchase specification should define the applicable edition, inspection requirements and documentation for the offered configuration.
• Full-Bore Passage: The ball opening aligns with the pipeline when fully open, helping limit obstruction and pressure loss across equipment isolation points.
• Two-Piece Housing: Separate body and end-cap sections permit access to internal components during maintenance after safe isolation, depressurization and appropriate dismantling.
• Quarter-Turn Operation: Rotary stem movement opens or closes the passage, supporting convenient manual operation or integration into an automated assembly.
• ASME Pipeline Interfaces: Raised-face flanges are referenced to ASME B16.5, with face-to-face dimensions referenced to ASME B16.10. These interfaces help match the valve to the specified piping layout.
• Actuator Mounting: An ISO 5211 top flange supports actuator integration. Confirm operating torque, stem coupling, differential pressure and cycling frequency when selecting the actuator.

Materials and Construction

• Body and End Cap: Listed stainless steel options include CF8, CF8M and CF3M.
• Ball and Stem: Stainless steel.
• Seats: PTFE.
• Body-Joint Gasket, Thrust Washer and Packing: PTFE.
• Gland, Locking Device, Handle and Listed Fasteners: Stainless steel.
• Handle Cover: Plastic.

Specify individual component grades when corrosion resistance or project material requirements are important. The body grade should not be assumed to establish the grade of every internal component.

Typical Applications

• Chemical Processing: Isolation of compatible process liquids where the selected stainless steel grade and sealing materials meet the fluid requirements.
• Oil and Gas Facilities: Selected process and auxiliary duties within the confirmed operating envelope and project specifications.
• Industrial Water Systems: Compatible cooling-water, process-water and utility-water connections.
• Air and Gas Networks: Plant distribution and equipment isolation after confirmation of fluid compatibility and operating conditions.
• Process Equipment Packages: Local shut-off around pumps, filters, heat exchangers and skid-mounted equipment.
• Plant Maintenance and Replacement: Projects requiring matching Class 150 flange details, installation length and operating clearances.

Corrosion and Operating Considerations

Review the actual fluid composition, concentration, contaminants and cleaning chemicals against all wetted materials. Chloride-bearing services require particular attention to stainless steel grade selection, temperature and stagnant conditions.

This valve is primarily intended for on/off isolation. Sustained partial opening can concentrate flow around the seats and accelerate wear. Automated liquid systems should also be assessed for pressure surges when determining closing times.

Provide adequate pipe support and flange alignment to avoid excessive loads on the body. Allow clearance for operation, actuator removal and future servicing.

Optional Configuration and Documentation

A fire-safe version is listed as an option. Confirm its construction, sealing materials, applicable test qualification and supporting documents for the selected size.

Material certificates, shell and seat test records, identification requirements and inspection arrangements should be agreed before ordering. Where API Monogram marking is required, verify the manufacturer’s current licence and its applicable product scope separately.

Compare Related Ball Valves

• Compare the DIN Flanged Ball Valve 2-PC Stainless Steel when the piping specification uses DIN/EN connections.