BPV&TWCV One way Back Pressure Valve And Two Way Back Pressure
Valve
Product Introduction
The BPV, or one-way back pressure valve, is most often used during
workovers as a necessary device to isolate pressure inside the BOP
or tree
and tubing.
The TWCV, or two-way back pressure valve, is usually installed
during field pressure tests on BOP or tree.
Both the BPV and TWCV are installed on tubing hangers
BPV: Blow out prevent Valve
One-way back pressure valve is composed of back pressure valve
body, rectangular sealing ring, push rod, back pressure spool and
spring
TWCV: Two way check valve
Two-way back pressure valve is composed of back pressure valve
body, rectangular sealing ring, back pressure spool, joint, O-ring,
screw.
Back Pressure Valve
There are two kinds of BPV, one-way and two-way. The one-way BPV
provide circulating drill fluids downwards and shutting off
pressure from
down hole. When coming to pressure test for Christmas tree under
tubing hanger.
BPV adopts special short buttress thread, and it is of high
strength, independence, long service time, etc. BPV could be
assembled and
disassembled by using its running & retrieve tool to control well
pressure effec-tively and quickly..
We supply:
BPV Size: 2 ", 2-1/2 ", 3 "and 4", 4 1/2 ", 5 ", 6-1/16, "6- 5/16"
TWCV Size: 2 ", 2-1/2 ", 3 "and 4", 4 1/2 ", 5 ", 6-1/16, "6- 5/16"
| No. | Description | Qty. |
| 1 | Back pressure Valve Lubricator 3 1/16” x 10000 psi WP +/- 18
ft.long | 1 |
| 2 | BPV(type H) 2" | 2 |
| 3 | BPV(type H) 2 1/2" | 1 |
| 4 | BPV(type H) 3" | 2 |
| 5 | BPV(type H) 4" | 1 |
| 6 | BPV(type H) 4 1/2" | 1 |
| 7 | BPV(type H) 5" | 1 |
| 8 | BPV(type H) 6 1/16" | 1 |
| 9 | BPV(type H) 6 5/16" | 1 |
| 10 | TWCV(type H) 2" | 2 |
| 11 | TWCV(type H) 2 1/2" | 1 |
| 12 | TWCV(type H) 3" | 2 |
| 13 | TWCV(type H) 4" | 1 |
| 14 | TWCV(type H) 4 1/2" | 1 |
| 15 | TWCV(type H) 5" | 1 |
| 16 | TWCV(type H) 6 1/16" | 1 |
| 17 | TWCV(type H) 6 5/16" | 1 |
Through a complete set of tools and corresponding workflow during
the well repair and completion process, controllable and safe
downhole
blowout
was successfully achieved. During workover, prevent blowout in case
the tree is damaged by collision with rig equipment.
