Twin Flapper Check Valve Ultra
FUNCTIONALITY
Flow Control
InterventionDEPLOYMENT
SECTORS
The DTI Twin Flapper Check Valve provides a dual barrier within the coiled tubing tool string as safety critical protection against fluid back flow. It is robust, reliable, easy to redress and rated to 15,000PSI.
Two flapper cartridge sub-assemblies fit into the main valve body to provide an effective dual barrier. The flappers have combined elastomeric/ metal seating, providing efficient low- and high-pressure sealing, combined with simple redress.
All DTI’s motorheads and flapper check valves use our single-piece flapper cartridge design – pioneered at DTI and now copied throughout the industry for ultimate reliability and reduced leak paths and easier redress.
All these cartridges are factory pressure tested and are available to suit most housings and applications.
Features
& Benefits
- Uses DTI pioneered single piece flapper cartridges for reduced leak paths and easier redress.
- Dual Barrier through two cartridge assemblies.
- Metal-to metal sealing on flapper against cartridge.
- Combined low- and high-pressure sealing feature.
- Easy to redress by replacing cartridge body.
- Spare cartridges can be supplied fully assembled and tested.
- All Twin Flapper Check Valve Ultra’s are rated to 15,000 psi and 200 C.
Deployment and Operations
- All DTI’s TFCV’s can be specified with a range of connections or metallurgy for a variety of applications.
- Single piece cartridge easily replaced.
- TFCV assemblies can be supplied in alterative metallurgy or coatings for extreme environments.
| Part Number | OD | ID | Will Pass Ball | Length (M/U) | Tensile Rating | Threads |
|---|---|---|---|---|---|---|
| TFCVU169AC08 | 1.688" | 0.75" | 5/8" | 13.9" | 45,000 lbf | 1.00" AMMT |
| TFCVU175AC08 | 1.750" | 0.75" | 5/8" | 13.9" | 45,000 lbf | 1.00" AMMT |
| TFCVU212AC09 | 2.125" | 0.89" | 3/4" | 18.3” | 84,000 lbf | 1.50” AMMT |
| TFCVU238AC09 | 2.375" | 0.89" | 3/4" | 18.3” | 84,000 lbf | 1.50” AMMT |
| TFCVU288AC09 | 2.875" | 1.38" | 1 1/4" | 16.5” | 90,000 lbf | 2-3/8 PAC |
DTI has one of the largest ranges of Twin Flapper Check Valves available on the market. The table above shows our core products only. We offer optional equipment, alternative sizes, pressure ratings, materials and thread connections. Please contact us for more information.
