FLS
Extreme service API 6A slab-style gate valve
For extreme sour and subsea applications.
FLS-R
High-pressure API 6A slab-style gate valve
Overview
Industry-trusted and field-proven performance
The FLS-R™ high-pressure API 6A slab-style gate valve is our premier gate valve and uses the latest technology in component design and materials. A unique ball-screw and lower balancing stem mechanism greatly reduce the torque required for operation.
Field-proven performance and ease of use make this valve ideally suited for high-pressure environments in a wide range of applications.
Applications
Valve of choice for hydraulic fracturing operations
FLS-R gate valves have proved to be extremely reliable, resulting in their extensive use in fracturing, production, and drilling manifold applications worldwide. Their robust construction makes them suitable for demanding operations such as multiwell fracturing and continuous pumping.
Manually operated version of FLS-R gate valve.
Benefits
- Proprietary gate and seat design and stringent manufacturing specifications enhance reliability.
- Unique ball-screw design allows rolling friction in place of sliding friction, reducing the torque required for operation.
- Lower stem balances pressure thrust on upper stem, further reducing the operating torque and preventing body cavity pressure buildup during operation.
- Bidirectional design provides flow direction versatility and increased service life.
- Seal diameters and bearing areas of the seats prevent trapping pressure inside the valve cavity.
- Real-time monitoring and digital control of valve position are enabled by ValveCommander™ automated control and advisory platform.
Features
- Position indication provided by lower stem
- Option to operate manually or hydraulically
- Metal-to-metal stem backseat on both the balancing stem and valve operator stem, enabling replacement of either stem seal while the valve cavity is under pressure
- Backseat that can be energized to isolate the stem seal stuffing box from line pressure and the grease fitting port used to test the backseat integrity
- Two spring-loaded, pressure-energized, nonelastomeric lip seals for maximum protection against intrusion of particle contaminants into the valve cavity
- Seals that improve gate and seat service life, prevent damage to the body seat seal face, and improve valve performance at very low pressures
- Metal-to-metal sealing at the gate-to-seat and seat-to-body seals
Tech Specs
| Nominal Bore Size, in | |
||||||
|---|---|---|---|---|---|---|---|
| Nominal Bore Size, in | Working Pressures, psi [MPa] 5,000 [34.5] | Working Pressures, psi [MPa] 10,000 [69.0] | Working Pressures, psi [MPa] 15,000 [103.5] | Working Pressures, psi [MPa] 20,000 [138.0] | Working Pressures, psi [MPa] 30,000 [206.8] | ||
| Nominal Bore Size, in 1 13/16 | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] Available | ||
| Nominal Bore Size, in 2 9/16 | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] Available | ||
| Nominal Bore Size, in 3 1/16 | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] – | ||
| Nominal Bore Size, in 4 1/16 | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] – | ||
| Nominal Bore Size, in 5 1/8 | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | ||
| Nominal Bore Size, in 6 3/8 | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | ||
| Nominal Bore Size, in 7 1/16 | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | ||
| Nominal Bore Size, in 9 | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | ||
| Nominal Bore Size, in 11 | Working Pressures, psi [MPa] Available | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | Working Pressures, psi [MPa] – | ||
All specifications are subject to change without notice.
This chart represents typical valves for
- API material classes AA, BB, CC, DD, EE, FF, and HH
- temperature ratings K, L, P, S, T, U, and V
- product specification levels 1, 2, 3, 3G, and 4.
Contact us for other designs.
Also visit our FL™ API 6A slab-style gate valve and FLS™ extreme service API 6A slab-style gate valve web pages for more options.
Helpful links
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