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Vigor Dual-flapper Check Valve With Lock-Out Sleeve
Vigor Dual Flapper Check Valve with Lock-Out Sleeve features a comprehensive sealing system, with two independent flapper valves. During operation, the tool remains in an open state.
To close the flappers and prevent bottom-hole pressure from surging upward thereby protecting wellhead equipment, simply drop a ball and apply pressure to shear the shear pins on the lock-out sleeve, this causes the lock-out sleeve to move downward and activates the closure of the flappers.
It is particularly suitable for velocity string operations.
Description
China Vigor Drilling Oil Tools And Equipment Co., Ltd. is one of the most professional manufacturers and suppliers of vigor dual-flapper check valve with lock-out sleeve in China, featured by competitive price and fast delivery. Welcome to buy high quality vigor dual-flapper check valve with lock-out sleeve in stock here from our factory.
Vigor Dual Flapper Check Valve with Lock Out Sleeve allows the check valve to be run in hole in the open position to enable the reverse circulation of fluid from the well through the coiled tubing. When required, a drop ball can be used to shear out the lockout sleeve into an integral catcher sub below. The valve will then be activated as a conventional dual barrier within the tool string against well fluid back flow through the coiled tubing. It is robust, reliable, easy to redress and rated to 10,000 psi.
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.
Features
· 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.
· Integral catcher sub so nothing is left behind.
Techinical Parameter
|
Max. O.D. |
Min. I.D. |
Thread Types |
|
In. |
In. |
|
|
1.5 |
0.62 |
1"AMMT |
|
1.687 |
0.687 |
|
|
1.75 |
0.687 |
|
|
2.125 |
0.891 |
1.5"AMMT |
|
2.25 |
1.031 |
|
|
2.375 |
1 |
|
|
2.875 |
1.369 |
2-3/8"PAC |
|
3.125 |
1.442 |
|
|
3.125 |
1.442 |
2-3/8"EUE |
|
3.875 |
2.125 |
2-7/8"EUE |
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