Cornerstone FBC Cryogenic Ball Valve
The Cornerstone FBC cryogenic ball valve provides reliable process isolation for demanding low-temperature applications. Its two-piece end-entry design combines a floating ball with an extended stem and bonnet.
Cornerstone offers full or reduced port configurations with bi-directional shut-off. Cavity-relieving cantilever seats help manage pressure while maintaining dependable sealing performance.
Pre-loaded, pressure-assisted seating provides uniform operating torque. Process pressure also strengthens the seal for tighter shut-off. This design supports bubble-tight performance across soft-seated and metal-seated configurations.
The extended stem and bonnet help configure the valve for cryogenic process conditions. Cornerstone specifically identifies LNG storage and distribution, liquid oxygen, liquid nitrogen, and low-temperature processing applications.
The FBC also uses engineered stem and fugitive emissions seals. Cornerstone lists the series as ISO 15848 certified for fugitive emissions performance.
Pressure ratings extend from ANSI/ASME Class 150 through 2500. API ratings extend from 2000 through 5000. Available sizes range from 1/2 inch through 12 inches.
Westech Industrial can help customers review cryogenic service conditions, process media, pressure class, materials, seating, leakage requirements, end connections, and actuation.
Westech can also support valve service requirements throughout the equipment lifecycle. For larger projects, our team can incorporate Cornerstone valves into custom-fabricated industrial systems.
These systems can combine valves with piping, instrumentation, controls, skids, enclosures, and other supporting equipment.
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Description
Product Features
Purpose-Built for Cryogenic Applications
Cornerstone designed the FBC specifically for cryogenic and low-temperature service.
The valve uses an extended stem and bonnet configuration. This arrangement supports applications where extremely low process temperatures create specialized valve requirements.
Cornerstone identifies LNG, liquid oxygen, liquid nitrogen, and low-temperature processing among the primary applications.
Floating Ball Design
The FBC uses a floating ball design within a rigid two-piece bolted body.
The floating ball works with the pressure-assisted seating arrangement to provide dependable isolation.
Cornerstone combines this design with full or reduced port configurations. Therefore, customers can select the flow arrangement that better suits their process requirements.
Bi-Directional Shut-Off
The FBC provides bi-directional shut-off.
This capability gives operators dependable isolation regardless of the required process flow direction.
The seating arrangement also incorporates cavity-relieving functionality to address pressure within the valve cavity.
Cavity-Relieving Cantilever Seats
Cornerstone uses cavity-relieving cantilever seats within the FBC.
The design combines pre-loading with pressure-assisted seating. Pre-loading maintains more uniform operating torque.
Meanwhile, process pressure increases the sealing force. Together, these features help deliver reliable shut-off in demanding cryogenic service.
Bubble-Tight Shut-Off
The FBC supports bubble-tight shut-off.
Cornerstone lists bubble-tight performance for both soft-seated and metal-seated configurations.
This capability makes the cryogenic ball valve suitable for applications where tight process isolation carries significant importance.
Soft-Seated or Metal-Seated Configurations
Customers can select either soft-seated or metal-seated configurations.
This flexibility helps match the valve to process temperature, media, pressure, and shut-off requirements.
Metal-seated configurations support FCI 70.2 Class V and VI leakage performance. Additional leakage standards also apply to the series.
Spiral-Wound Graphite Body and Bonnet Seal
Cornerstone uses a spiral-wound graphite body and bonnet seal.
This sealing arrangement provides reliable performance while supporting the valve’s fire-safe design.
Fire-safe configurations also appear among the available FBC options.
Engineered Fugitive Emissions Sealing
Cornerstone engineers stem and fugitive emissions seals according to customer specifications.
The FBC carries ISO 15848 fugitive emissions certification.
This feature supports applications where controlling emissions around valve stem sealing remains an important operating requirement.
Extended Stem and Bonnet
The extended stem and bonnet distinguish the FBC from conventional process ball valve configurations.
This arrangement supports cryogenic installation requirements while maintaining access to the operating mechanism.
The design complements the valve’s focus on LNG and industrial gas service.
Rigid Bolted Body
Cornerstone uses a rigid bolted body for strength and versatility.
The two-piece end-entry construction provides a strong pressure boundary for demanding process conditions.
This design also accommodates different seating, material, and end connection options.
Multiple End Connection Options
The FBC offers several piping connection styles.
Available connections include socket weld, butt weld, raised face, RTJ, and hub ends.
The product references ANSI B16.5, API 6A, and ANSI B16.25 connection requirements.
Secondary and Tertiary Stem Seals
Cornerstone offers secondary and tertiary stem seals as additional options.
These configurations provide another level of sealing flexibility for demanding process applications.
They complement the FBC’s engineered stem and fugitive emissions sealing system.
Material Options for Demanding Service
Available materials include stainless steel, nickel-based alloys, and titanium-based alloys.
Cornerstone can also supply other exotic alloys upon request.
This flexibility helps customers match valve construction to process media and operating conditions.
Manual or Automated Actuation
The FBC supports manual and automated operation.
Available actuation methods include manual, pneumatic, hydraulic, and electric operation.
Therefore, customers can use the valve in both manually operated and automated process systems.
Applications
Applications
The Cornerstone FBC cryogenic ball valve supports specialized low-temperature and industrial process applications.
- LNG storage
- LNG distribution
- Liquid oxygen service
- Liquid nitrogen service
- Low-temperature processing
- Petroleum refining
- Cryogenic process isolation
- Applications requiring bubble-tight shut-off
- Applications requiring fugitive emissions control
Cornerstone specifically identifies LNG storage and distribution, liquid oxygen, liquid nitrogen, low-temperature processing, and petroleum refining for the FBC Series.
Manufacturer info
Cornerstone Valve designs and manufactures specialty ball valves for severe-service industrial applications. Its focus on custom-engineered, fit-for-purpose solutions helps address demanding pressure, temperature and process conditions.
